0000000000901455

AUTHOR

Sébastien Terrat

showing 53 related works from this author

Mapping and determinism of soil microbial community distribution across an agricultural landscape.

2015

Article en open access; International audience; Despite the relevance of landscape, regarding the spatial patterning of microbial communities and the relative influence of environmental parameters versus human activities, few investigations have been conducted at this scale. Here, we used a systematic grid to characterize the distribution of soil microbial communities at 278 sites across a monitored agricultural landscape of 13km(2). Molecular microbial biomass was estimated by soil DNA recovery and bacterial diversity by 16S rRNA gene pyrosequencing. Geostatistics provided the first maps of microbial community at this scale and revealed a heterogeneous but spatially structured distribution…

Biodiversity[SDV.SA.AGRO]Life Sciences [q-bio]/Agricultural sciences/AgronomyGeostatisticsEnvironmentMicrobiologysoil microbial ecologySciences de la TerreDiversity index[ SDV.SA.AGRO ] Life Sciences [q-bio]/Agricultural sciences/Agronomydiversité microbienneSoil pHRNA Ribosomal 16Sécologie du solBiomassbiomasse microbiennemappingpratique culturaleEcosystemSoil Microbiologypaysage agricoleOriginal Research2. Zero hungerBiomass (ecology)communauté microbienneenvironmental filtersBacteriaEcologyMicrobiotabacterial diversitydistribution spatialeAgricultureBiodiversitySequence Analysis DNA15. Life on landlandscapeAgricultural practicesAgronomyMicrobial population biologyAgricultural practices;bacterial diversity;environmental filters;landscape;mapping;soil microbial ecologyEarth SciencescartographieEnvironmental scienceSpecies evennessSpecies richnessactivité microbienne du solhuman activitiesMicrobiologyOpen
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Bacterial social networks across the French National territory

2017

EA SPE BIOME GENOSOL UB Agrosup EA SPE BIOME GENOSOL UB AgrosupEASPEBIOMEGENOSOL UB Agrosup; New generation sequencing evidenced that soil houses a huge microbial biodiversity. Based on these observations, it is now possible to better describe the spatial distribution of soil microbial communities, to study the ecological processes involved (environmental selection, dispersal limitations), and to compute the data to define the ecological attributes of soil microbial taxa. These huge datasets also offer the opportunity to study how soil microbial populations are interrelated. With this study, we revealed the first soil bacterial "social" network across French national territory based on 2,20…

[SDV] Life Sciences [q-bio][ SDV ] Life Sciences [q-bio][SDV]Life Sciences [q-bio]complex mixtures
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Molecular biomass and MetaTaxogenomic assessment of soil microbial communities as influenced by soil DNA extraction procedure

2011

Three soil DNA extraction procedures (homemade protocols and commercial kit) varying in their practicability were applied to contrasting soils to evaluate their efficiency in recovering: (i) soil DNA and (ii) bacterial diversity estimated by 16S rDNA pyrosequencing. Significant differences in DNA yield were systematically observed between tested procedures. For certain soils, 10 times more DNA was recovered with one protocol than with the others. About 15,000 sequences of 16S rDNA were obtained for each sample which were clustered to draw rarefaction curves. These curves, as well as the PCA ordination of community composition based on OTU clustering, did not reveal any significant differenc…

2. Zero hunger0303 health sciencesbiology030306 microbiologyFirmicutesSoil chemistryBioengineering15. Life on landbiology.organism_classificationcomplex mixturesApplied Microbiology and BiotechnologyBiochemistryActinobacteria03 medical and health sciencesCrenarchaeotaMetagenomicsSoil waterBotanyPyrosequencingSoil microbiology030304 developmental biologyBiotechnologyMicrobial Biotechnology
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Biogeographical design of soil microbial habitats

2019

International audience; Since the beginning of 21th century, soil microbial diversity is intensively studied gathering ahuge knowledge at local and global scales. Nevertheless, the microbial habitats have beenpoorly investigated, limiting our ability to link biodiversity description and regulation. In our study,we used a pyrosequencing approach targeting 16S rRNA genes directly amplified from soil DNAto have a comprehensive view of soil bacterial and archaeal community composition across thelargest spatially explicit soil sampling available in France (2173 soils, area covered = 5.5x105km2). Based on the multivariate regression tree (MRT) method, we designed 16 distinctterrestrial microbial …

[SDE] Environmental Sciences[SDE]Environmental Sciences
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Bacterial "social" network in french soils : a Metagenomics insight

2017

EA SPE BIOME GENOSOL UB Agrosup EA SPE BIOME GENOSOL UB AgrosupEASPEBIOMEGENOSOL UB Agrosup; New generation sequencing evidenced that soil houses a huge microbial biodiversity. Based on these observations, it is now possible to better describe the spatial distribution of soil microbial communities, to study the ecological processes lying behind (environmental selection, dispersal limitations), and to mine the data to define the ecological attributes of soil microbial taxa. These huge datasets also offer the opportunity to study how soil microbial populations are interrelated. The objective of this study was to design the first bacterial "social" network in french soils to characterize how b…

[SDV] Life Sciences [q-bio][ SDV ] Life Sciences [q-bio][SDV]Life Sciences [q-bio]complex mixtures
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Annotation of microsporidian genomes using transcriptional signals

2012

EA GenoSol CT3; International audience; High-quality annotation of microsporidian genomes is essential for understanding the biological processes that govern the development of these parasites. Here we present an improved structural annotation method using transcriptional DNA signals. We apply this method to re-annotate four previously annotated genomes, which allow us to detect annotation errors and identify a significant number of unpredicted genes. We then annotate the newly sequenced genome of Anncaliia algerae. A comparative genomic analysis of A. algerae permits the identification of not only microsporidian core genes, but also potentially highly expressed genes encoding membrane-asso…

Transcription Geneticgenome annotationMESH : Molecular Sequence AnnotationGeneral Physics and AstronomyMESH: PhosphotransferasesGenometranscriptional signalMESH : Protein TransportMESH : Fungal ProteinsDNA FungalConserved SequenceComputingMilieux_MISCELLANEOUSGenetics0303 health sciencesFungal proteinMESH: Conserved SequenceMultidisciplinaryMESH: Genomics030302 biochemistry & molecular biologyGenomicsGenome projectProtein TransportMolecular Sequence Annotation[ SDV.BBM.GTP ] Life Sciences [q-bio]/Biochemistry Molecular Biology/Genomics [q-bio.GN]MESH: Genome FungalMESH: Fungal ProteinsMESH : PhosphotransferasesGenome FungalTransposable elementMESH: Protein TransportGenes FungalGenomicsMESH: Molecular Sequence AnnotationMESH : MicrosporidiaMESH : Open Reading FramesComputational biologyBiologyGeneral Biochemistry Genetics and Molecular BiologyFungal ProteinsOpen Reading Frames03 medical and health sciencesMESH : Conserved Sequence[SDV.BBM.GTP]Life Sciences [q-bio]/Biochemistry Molecular Biology/Genomics [q-bio.GN]Anncaliia algeraeparasitic diseasesGene030304 developmental biologybioinformaticMESH: Transcription GeneticMESH : Genome FungalPhosphotransferasesstructural annotationMESH : GenomicsfungiMESH : Transcription GeneticMolecular Sequence AnnotationGeneral ChemistryMESH: Open Reading FramesMESH: MicrosporidiaMESH: DNA FungalmicrosporidiaMESH : Genes Fungal[INFO.INFO-BI]Computer Science [cs]/Bioinformatics [q-bio.QM]MESH : DNA FungalMESH: Genes FungalNature Communications
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Tillage intensity and pasture in rotation effectively shape soil microbial communities at a landscape scale

2018

International audience; Soil microorganisms are essential to agroecosystem functioning and services. Yet, we still lack information on which farming practices can effectively shape the soil microbial communities. The aim of this study was to identify the farming practices, which are most effective at positively or negatively modifying bacterial and fungal diversity while considering the soil environmental variation at a landscape scale. A long-term research study catchment (12 km2 ) representative of intensive mixed farming (livestock and crop) in Western Europe was investigated using a regular grid for soil sampling (n = 186). Farming systems on this landscape scale were described in terms…

0301 basic medicineAgroecosystemCrops AgriculturalDNA Bacterialagricultural practices;bacteria;farmers;fungi;sustainable landuselcsh:QR1-502[SDV.SA.AGRO]Life Sciences [q-bio]/Agricultural sciences/Agronomyengineering.material[SDV.SA.SDS]Life Sciences [q-bio]/Agricultural sciences/Soil studyMicrobiologyPasturecomplex mixtureslcsh:MicrobiologySoil management03 medical and health sciencesSoilBiomassFertilizersSoil Microbiology2. Zero hungergeographygeography.geographical_feature_categoryFarmersBacteriabusiness.industryFungifood and beveragesAgriculture04 agricultural and veterinary sciencesBiodiversityOriginal ArticlesSustainable landuse15. Life on landCrop rotationTillageEuropeAgricultural practices030104 developmental biology[SDV.MP]Life Sciences [q-bio]/Microbiology and ParasitologyAgronomyAgriculture040103 agronomy & agricultureengineering0401 agriculture forestry and fisheriesEnvironmental scienceOriginal ArticleFertilizerMixed farmingbusiness
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Shifts in microbial diversity through land use intensity as drivers of carbon mineralization in soil

2015

10 pages; International audience; Land use practices alter the biomass and structure of soil microbial communities. However, the impact of land management intensity on soil microbial diversity (i.e. richness and evenness) and consequences for functioning is still poorly understood. Here, we addressed this question by coupling molecular characterization of microbial diversity with measurements of carbon (C) mineralization in soils obtained from three locations across Europe, each representing a gradient of land management intensity under different soil and environmental conditions. Bacterial and fungal diversity were characterized by high throughput sequencing of ribosomal genes. Carbon cycl…

Soil biodiversitySoil biologyLand managementSoil Science[SDV.SA.SDS]Life Sciences [q-bio]/Agricultural sciences/Soil studyMicrobiologycomplex mixturesSoil management03 medical and health sciencesLaboratorium voor Nematologie030304 developmental biology2. Zero hungerCarbon cycling0303 health sciencesEcologySoil organic matter04 agricultural and veterinary sciencesMineralization (soil science)Biodiversity15. Life on landPE&RCAgronomyinternationalSoil waterLand use040103 agronomy & agricultureEcosystem functioning0401 agriculture forestry and fisheriesEnvironmental scienceSpecies richnessLaboratory of Nematology
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Is soil an island for bacteria ? Contribution of the soil bacterial taxa area relationship unsing new generation sequencing

2016

EA SPE BIOME GENOSOL; International audience

[SDV] Life Sciences [q-bio][SDE] Environmental Sciences[SDV]Life Sciences [q-bio][SDE]Environmental Sciences[SDV.BV]Life Sciences [q-bio]/Vegetal Biology[SDV.BV] Life Sciences [q-bio]/Vegetal BiologyComputingMilieux_MISCELLANEOUS
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High microbial diversity promotes soil ecosystem functioning

2018

ABSTRACT In soil, the link between microbial diversity and carbon transformations is challenged by the concept of functional redundancy. Here, we hypothesized that functional redundancy may decrease with increasing carbon source recalcitrance and that coupling of diversity with C cycling may change accordingly. We manipulated microbial diversity to examine how diversity decrease affects the decomposition of easily degradable (i.e., allochthonous plant residues) versus recalcitrant (i.e., autochthonous organic matter) C sources. We found that a decrease in microbial diversity (i) affected the decomposition of both autochthonous and allochthonous carbon sources, thereby reducing global CO 2 e…

0301 basic medicineMicrobial diversitySoil biodiversity[SDV]Life Sciences [q-bio]carbon mineralizationApplied Microbiology and BiotechnologyEcosystem servicesNutrient[ SDV.MP ] Life Sciences [q-bio]/Microbiology and ParasitologyEnvironmental MicrobiologySoil Microbiology2. Zero hungerchemistry.chemical_classificationEcologyEcologyredundancyMicrobiota04 agricultural and veterinary sciencesrespiratory systemfunctional redundancy[SDV.MP]Life Sciences [q-bio]/Microbiology and ParasitologyBiotechnologypriming effect[ SDV.SA.SDS ] Life Sciences [q-bio]/Agricultural sciences/Soil studyContext (language use)[SDV.BID]Life Sciences [q-bio]/Biodiversity[SDV.SA.SDS]Life Sciences [q-bio]/Agricultural sciences/Soil studyCarbon cycle03 medical and health sciencessoil organic matterOrganic matterEcosystem14. Life underwaterEcosystem[ SDV.BID ] Life Sciences [q-bio]/BiodiversityBacteria[ SDV ] Life Sciences [q-bio]Soil organic matterFungi15. Life on landCarbonfunctional030104 developmental biologychemistry13. Climate actionmicrobial diversity040103 agronomy & agriculture0401 agriculture forestry and fisheriesEnvironmental sciencehuman activitiesFood Science
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Microbial metacommunity: a METABAR coding approach

2017

Microbial metacommunity: a METABAR coding approach. 2017 Scientific MEM days: Journées scientifiques MEM (Métaomiques et écosystèmes microbiens)

[SDV] Life Sciences [q-bio]communauté microbienne[ SDV ] Life Sciences [q-bio][SDV]Life Sciences [q-bio]microbial community
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Caractérisation de la distribution spatiale des communautés microbiennes du sol et de ses déterminants à l’échelle du paysage

2014

International audience; Depuis plusieurs années, des approches biogéographiques ont été développées pour mieux caractériser la distribution spatiale des communautés microbiennes du sol, comprendre les processus écologiques mis en œuvre et identifier les filtres environnementaux déterminant leur diversité et leur structure. Ces approches ont été mises en œuvre à différentes échelles spatiales allant de celle de la parcelle agricole à celle d’un territoire et d’un continent. Elles ont permis de mettre en évidence que les communautés microbiennes du sol sont distribuées suivant des patterns biogéographiques non aléatoire et que ces dernières sont soumises à des processus déterministes (sélecti…

[SDE] Environmental Scienceslimitation par la dispersionsol[SDV]Life Sciences [q-bio]biogéographie[SDV.SA.AGRO]Life Sciences [q-bio]/Agricultural sciences/Agronomyusage ancien du solpratiques culturales[SDV] Life Sciences [q-bio][ SDV.SA.AGRO ] Life Sciences [q-bio]/Agricultural sciences/Agronomy[SDE]Environmental Sciencescommunautés microbiennes[SDV.BV]Life Sciences [q-bio]/Vegetal Biology[SDV.BV] Life Sciences [q-bio]/Vegetal Biologycrédit de colonisation.gradient de coeur à périphériepaysageespèce de coeur
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Le RMQS au service de l'écologie microbienne des sols français

2020

International audience; L'écologie microbienne des sols a longtemps été reconnue comme souffrant d'un certain manque de généricité car les études ont souvent été menées à l'échelle de parcelles voire de petits territoires et avec peu de sites investigués. Il en résulte un manque de connaissances sur les processus de distribution des populations et de la régulation de la diversité microbienne à grande échelle face à des modifications environnementales dues aux usages des terres ou au changement climatique. Dans les années 2000, le RMQS, avec 2 240 sites échantillonnés sur toute la France, a représenté une opportunité unique pour étudier les micro-organismes du sol sur de grandes échelles spa…

Solbio indicateursMicro-organismesBiogéographie[SDV.SA.SDS]Life Sciences [q-bio]/Agricultural sciences/Soil study[SDV.SA.SDS] Life Sciences [q-bio]/Agricultural sciences/Soil studyécologie
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Soil bacterial interaction networks on a wide scale

2017

EA BIOME INRA AGROSUP UB; International audience

[SDV] Life Sciences [q-bio][SDE] Environmental Sciences[SDV]Life Sciences [q-bio][SDE]Environmental Sciences[SDV.BV]Life Sciences [q-bio]/Vegetal Biology[SDV.BV] Life Sciences [q-bio]/Vegetal BiologyComputingMilieux_MISCELLANEOUS
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Stability of soil microbial structure and activity depends on microbial diversity

2013

Despite the central role of microbes in soil processes, empirical evidence concerning the effect of their diversity on soil stability remains controversial. Here, we addressed the ecological insurance hypothesis by examining the stability of microbial communities along a gradient of soil microbial diversity in response to mercury pollution and heat stress. Diversity was manipulated by dilution extinction approach. Structural and functional stabilities of microbial communities were assessed from patterns of genetic structure and soil respiration after the stress. Dilution led to the establishment of a consistent diversity gradient, as revealed by 454 sequencing of ribosomal genes. Diversity …

2. Zero hunger0303 health sciencesEcologyMicrobial metabolismBiodiversitySoil chemistryContext (language use)04 agricultural and veterinary sciencesrespiratory system15. Life on landBiologyAgricultural and Biological Sciences (miscellaneous)Soil respiration03 medical and health sciencesNutrient13. Climate action040103 agronomy & agriculture0401 agriculture forestry and fisheriesEcosystemhuman activitiesSoil microbiologyEcology Evolution Behavior and Systematics030304 developmental biologyEnvironmental Microbiology Reports
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High-throughput sequencing of amplicons for monitoring yeast biodiversity in must and during alcoholic fermentation

2014

Abstract We compared pyrosequencing technology with the PCR-ITS-RFLP analysis of yeast isolates and denaturing gradient gel electrophoresis (DGGE). These methods gave divergent findings for the yeast population. DGGE was unsuitable for the quantification of biodiversity and its use for species detection was limited by the initial abundance of each species. The isolates identified by PCR-ITS-RFLP were not fully representative of the true population. For population dynamics, high-throughput sequencing technology yielded results differing in some respects from those obtained with other approaches. This study demonstrates that 454 pyrosequencing of amplicons is more relevant than other methods …

[SDV]Life Sciences [q-bio]PopulationBioengineeringBiologyEthanol fermentationPolymerase Chain ReactionApplied Microbiology and BiotechnologyDNA sequencing03 medical and health sciencesYeasts[SDV.IDA]Life Sciences [q-bio]/Food engineering[SDV.BV]Life Sciences [q-bio]/Vegetal BiologyVitis[SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineeringeducation030304 developmental biologyGenetics0303 health scienceseducation.field_of_studyEthanolDenaturing Gradient Gel Electrophoresis030306 microbiologybusiness.industryHigh-Throughput Nucleotide Sequencingfood and beveragesBiodiversityYeastBiotechnologyDNA profilingFermentation[SDE]Environmental SciencesPyrosequencingFermentationbusinessTemperature gradient gel electrophoresisBiotechnology
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FT-IR spectroscopy : A powerful tool for studying the inter- and intraspecific biodiversity of cultivable non-Saccharomyces yeasts isolated from grap…

2016

International audience; The efficiency of the FT-IR technique for studying the inter- and intra biodiversity of cultivable non-Saccharomyces yeasts (NS) present in different must samples was examined. In first, the capacity of the technique FF-IR to study the global diversity of a given sample was compared to the pyrosequencing method, used as a reference technique. Seven different genera (Aureobasidium, Candida, Cryptococcus, Hanseniaspora, Issatchenkia, Metschnikowia and Pichia) were identified by FT-IR and also by pyrosequencing. Thirty-eight other genera were identified by pyrosequencing, but together they represented less than 6% of the average total population of 6 musts. Among the sp…

0301 basic medicineIdentification[ SDV.AEN ] Life Sciences [q-bio]/Food and NutritionBiodiversityWineHanseniasporaSaccharomycesMicrobial ecology[ SDV.MP ] Life Sciences [q-bio]/Microbiology and ParasitologyYeastsSpectroscopy Fourier Transform InfraredVitisDNA FungalMycological Typing TechniquesPhylogenyCandidaIntragenomic variationbiologySp-nov.Pyrolysis mass-spectrometryPyrosequencingBiodiversityCandida zemplininaYeast in winemaking[SDV.MP]Life Sciences [q-bio]/Microbiology and ParasitologyFT-IR spectroscopyMetschnikowiaAlcoholic fermentationMicrobiology (medical)food.ingredientWine yeast030106 microbiologyMicrobiologyIntraspecific competitionCandida-zemplininaSaccharomyces03 medical and health sciencesfoodBotanyRNA Ribosomal 18SMolecular BiologyBase SequenceComputational BiologySequence Analysis DNAbiology.organism_classificationGreen lacewingsStrain typingPyrosequencingTransform-infrared-spectroscopy[SDV.AEN]Life Sciences [q-bio]/Food and NutritionBotrytis-affected wine
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Biogeographical patterns of soil bacterial diversity at the scale of France

2016

EA SPE BIOME GENOSOLEASPEBIOMEGENOSOL; Biogeographical patterns of soil bacterial diversity at the scale of France. 16. International Symposium on Microbial Ecology - ISME16

[SDV] Life Sciences [q-bio][ SDV ] Life Sciences [q-bio][SDV]Life Sciences [q-bio]
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Bacterial community diversity harboured by interacting species

2016

International audience; All animals are infected by microbial partners that can be passengers or residents and influence many biological traits of their hosts. Even if important factors that structure the composition and abundance of microbial communities within and among host individuals have been recently described, such as diet, developmental stage or phylogeny, few studies have conducted cross-taxonomic comparisons, especially on host species related by trophic relationships. Here, we describe and compare the microbial communities associated with the cabbage root fly Delia radicum and its three major parasitoids: the two staphylinid beetles Aleochara bilineata and A. bipustulata and the…

0301 basic medicine[SDV]Life Sciences [q-bio]lcsh:MedicinespeciesArtificial Gene Amplification and ExtensionPathogenesisPathology and Laboratory MedicinephylogenycabbagegenusPolymerase Chain ReactiongeographyParasitoidAbundance (ecology)[ SDV.MP ] Life Sciences [q-bio]/Microbiology and ParasitologyMedicine and Health SciencesRickettsialcsh:ScienceTrophic levelMultidisciplinarybiologyEcologyMicrobiotabeetleGenomicsBiodiversityBacterial PathogensInsectsColeopterasymbiont[SDV.MP]Life Sciences [q-bio]/Microbiology and ParasitologypyrosequencingMedical MicrobiologyHost-Pathogen Interactions[SDE]Environmental SciencesWolbachiaFrancePathogensmicrobial communityWolbachiaResearch ArticleArthropodaSpiroplasmaMollicutesSpiroplasmaMicrobial GenomicsResearch and Analysis MethodsMicrobiology03 medical and health sciencesPhylogeneticsGeneticsAnimals[SDV.BV]Life Sciences [q-bio]/Vegetal BiologyMolecular Biology TechniquesMolecular BiologyMicrobial PathogensparasitoidBacteriaHost (biology)Dipteralcsh:RfungiOrganismsBiology and Life Sciencesbiology.organism_classificationInvertebratesHymenoptera030104 developmental biologylcsh:QMicrobiomeDelia radicum
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La sensibilité des communautés microbiennes à une augmentation de la température augmente quand la biodégradabilité de la ressource organique baisse

2014

La sensibilité des communautés microbiennes à une augmentation de la température augmente quand la biodégradabilité de la ressource organique baisse. 12. Journées d'Etude des Sols

[ SDE.MCG ] Environmental Sciences/Global Changes[SDE.MCG] Environmental Sciences/Global ChangesPyroséquençageStructures des communautés microbiennesDiversitéARISA[SDE.MCG]Environmental Sciences/Global ChangesMatières organiques du solTempérature
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Plateforme GenoSol : une structure logistique d'appui à la recherche sur la microbiologie des sols et de l'environnement

2012

EA SPE GenoSol EcolDur CT3; Les communautés microbiennes du sol sont difficiles à caractériser. Ceci s’explique par une accessibilité plus ou moins importante des populations au sein d’une matrice hétérogène et structurée mais aussi par leur densité et diversité très importante qui rend difficile à résoudre l’information obtenue. Toutefois, grâce aux avancées méthodologiques qui ont eu lieu depuis une quinzaine d’années, les études d’écologie microbienne bénéficient maintenant d’une automatisation des outils moléculaires (extraction d’ADN, caractérisation du polymorphisme de l’ADN, séquençage haut débit, métagénomique, métaprotéomique…) permettant la caractérisation des ressources génétique…

[SDV] Life Sciences [q-bio]plateforme génosol[ SDV ] Life Sciences [q-bio][SDV]Life Sciences [q-bio]structure logistique d’appui à la recherchemicrobiologie des sols et de l’environnement
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Plant genotype: a lever in the interactions between plant and its associated rhizosphere microbiome

2018

International audience; In the context of highly pressured agricultural production using low levels of inputs, cropping strategies could take advantage of existing plant-microbiome interactions that can improve both plant growth and health. We believe that plant genetics can provide some clues to better understand the mechanisms underlying microbiome recruitment by the plant.The aims of this work were (i) to assess plant genotype effect on the rhizosphere bacterial communities in relation to the plant nutritional strategies for a core collection of 155 genotypes of Medicago truncatula and (ii) to highlight the genetic determinisms potentially associated in these interactions. To achieve the…

[SDV] Life Sciences [q-bio]Plant nutritional strategies[SDV]Life Sciences [q-bio]Medicago truncatulaRhizosphereGWASMicrobial communities
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Soil microbial diversity effects on primary production and symbiotic interactions

2013

SPEEAEcolDurGenoSolGEAPSI; The importance of telluric microorganisms linked together by trophic exchanges with plants, that sustain all ecosystems through primary production, is known. However, the role of soil microbial diversity for primary production remains controversial. A diversity decreasing was achieved, by inoculating a sterilized soil with serial dilutions of a suspension from the same non-sterilized soil, to determine the consequences of microbial diversity erosion on the growth and fitness of three plant species more or less dependent on symbionts, Medicago truncatula, Brachypodium distachyon and Arabidopsis thaliana. The results showed that the impact of microbial diversity dec…

[SDV] Life Sciences [q-bio]diversity manipulation[ SDV ] Life Sciences [q-bio][SDV]Life Sciences [q-bio]fungifood and beveragesmicrobial communitiesplant fitnessvaleur adaptative des planteshuman activitiesmaniplation de diversitécommunuatés microbiennes
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Optimisation de la procédure d'extraction d'ADN des sols pour caractériser la diversité microbienne tellurique par le pyroséquençage des gènes riboso…

2013

Depuis plusieurs années, les communautés microbiennes du sol (bactériennes et fongiques) sont étudiées au travers de leur ADN. Le mode d’extraction de l’ADN du sol revêt donc une importance capitale pour décrire la biodiversité microbienne. A ce jour, de nombreuses procédures d’extraction d’ADN (commerciales ou non) des sols sont disponibles et utilisées. Il est cependant difficile de comparer les résultats d’études ayant utilisés différents protocoles d’extraction. L’emploi d’une méthode d’extraction standardisée est donc devenu indispensable pour comparer les résultats de différents laboratoires, comme la norme “ISO-11063: Soil quality – Method to directly extract DNA from soil” développé…

[SDV] Life Sciences [q-bio][SDE] Environmental Sciences[SDV]Life Sciences [q-bio][SDE]Environmental SciencesADN[SDV.BV]Life Sciences [q-bio]/Vegetal Biology[SDV.BV] Life Sciences [q-bio]/Vegetal Biologyprocédures d'extractionsolspyroséquençagebiodiversité microbienne
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Explorer les fonctions microbiennes à partir d'informations taxonomiques : un état de l'art des outils et des méthodes

2019

National audience; À l'ère des Big Data, d’énormes quantités de données sont disponibles et constituent uneoccasion unique de développer des algorithmes de prédiction performants. En écologiemicrobienne, ce phénomène a joué un rôle majeur dans la façon dont nous abordons labiodiversité depuis l’apparition des NGS. L’étude des microbiomes environnementaux par lesoutils les méta-omiques a conduit à la découverte de nouveaux organismes, fournissant ainsiune source importante d’informations taxonomiques et fonctionnelles. L’un des futurs défis, estde réussir à associer une fonction à une diversité microbienne pour améliorer notrecompréhension des fonctions du microbiome (British Ecological Soci…

[SDE] Environmental Sciences[SDE]Environmental Sciences
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Optimisation du pyroséquençage haut-débit pour caractériser la diversité taxonomique des communautés bactériennes des sols

2011

Affiche, résumé; International audience; La diversité microbienne d’un sol (que l’on estime entre 100 000 et 1 000 000 d’espèces différentes par gramme de sol) est difficile à caractériser. Toutefois, d’importantes avancées en biologie moléculaire, comme le développement du pyroséquençage, ont permis d'obtenir plusieurs centaines de milliers de séquences à partir d’un ADN méta-génomique. Ces nouveaux développements permettent maintenant de caractériser la diversité des communautés microbiennes du sol en se basant sur un marqueur phylogénétique comme l'ADNr 16S, aussi appelée MetaTaxogénomique (Maron et coll., 2011). Toutefois, dans un contexte ou l’écologie microbienne du sol commence à s’a…

[SDV] Life Sciences [q-bio][SDE] Environmental Sciencesbactériediversité taxonomiquesol[SDV]Life Sciences [q-bio][SDE]Environmental Sciencespyroséquençagecommunauté bactérienne
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Innovative tools to diagnose the impact of land use practices on soil microbial communities

2018

International audience; Preservation and sustainable use of soil biological communities represent major challenges in the current agroecological context. Indeed, most of soil ecosystem services results from biological functions particularly driven by taxonomic and functional assemblages of microbiological communities (i.e. nutrient cycling, soil aggregation, depollution, etc.). Consequently, soil microbial communities are logical candidates as effective indicators of soil quality and sustainability. But, good biological indicators must be associated with references that encompass an operating range of measured values that allow performing the desired diagnosis. Even if numerous studies have…

[SDE] Environmental Sciencessoil microbial indicatorssoil biological diagnosisstatistical predictive model[SDE]Environmental Sciences
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Apport des nouvelles générations de séquençage pour accéder à la diversité des communautés microbiennes du sol : nécessité d’un ‘pipeline’ bio-inform…

2011

Communication orale, résuméCommunication orale, résumé; La diversité microbienne d’un sol est difficile à caractériser. Ceci s’explique par une accessibilité plus ou moins importante des populations au sein d’une matrice hétérogène et structurée, mais aussi par l’incapacité à résoudre une information constituée de 100 000 à 1 000 000 d’espèces différentes par gramme de sol. Toutefois, récemment, d’importantes avancées en biologie moléculaire ont permis de mieux caractériser la diversité des communautés microbiennes du sol in situ et ce sans a priori. Ainsi, la puissance des nouvelles générations de séquençage comme le pyroséquençage permettent de travailler en haut-débit afin d’obtenir plus…

[SDV] Life Sciences [q-bio]méta-génomique monogénique;bio-informatique;pyroséquençage;pipeline[ SDV ] Life Sciences [q-bio]bio-informatique[SDV]Life Sciences [q-bio]pipelineméta-génomique monogéniquepyroséquençage
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Ecological networks as a promising approach to decipher the role of microbial communities in soil ecosystems

2017

Soil ecosystem is one of major reservoirs of microbial diversity on our planet. Many biological processes and interactions take place in soil, contributing to a considerable number of ecosystem services. Recent methodological advances, e.g. high throughput sequencing, provide an extensive knowledge on soil microbial communities in terms of diversity and composition. Thanks to these technological advances, numerous studies have investigated the variation of diversity indices and taxonomic composition of microbial communities according to changes in environmental conditions. However, estimates of microbial diversity through diversity metrics calculation such as Shannon, richness, evenness ind…

[SDV] Life Sciences [q-bio][SDE] Environmental Sciences[SDV]Life Sciences [q-bio][SDE]Environmental Sciences[SDV.BV]Life Sciences [q-bio]/Vegetal Biology[SDV.BV] Life Sciences [q-bio]/Vegetal Biology
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Apport des nouvelles générations de séquençage pour accéder à la diversité des communautés microbiennes du sol : nécessité d’un ‘pipeline’ bio-inform…

2012

National audience

[SDV] Life Sciences [q-bio][SDE] Environmental Sciences16Ssol[SDV]Life Sciences [q-bio][SDE]Environmental Sciencescommunautés microbiennes[SDV.BV]Life Sciences [q-bio]/Vegetal Biology[SDV.BV] Life Sciences [q-bio]/Vegetal Biologypipeline bio-informatiqueComputingMilieux_MISCELLANEOUSpyroséquençagediversité
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Re-Clustering tool using an Open-Reference method that improves OTU definition

2019

International audience; 1.Environmental microbial communities are now widely studied using metabarcoding approaches, thanks to the democratization of high‐throughput DNA sequencing technologies. The massive number of reads produced with these technologies requires bioinformatic solutions to be treated. A key step in the analysis is to cluster reads into Operational Taxonomic Units (or OTUs) and thus reduce the amount of data for downstream analyses. Due to the important impact of the clustering method on the quantity and quality of OTUs, finding an equilibrium between the reliability and time‐consuming nature of the chosen strategy is a real challenge. The present article proposes a new pos…

OTU definition[SDV.SA]Life Sciences [q-bio]/Agricultural sciences[SPI]Engineering Sciences [physics]post‐clusteringsoil microbial communitiesmetabarcoding approaches[SHS] Humanities and Social SciencesOTU reliability and stabilityReClustORComputingMilieux_MISCELLANEOUS[SHS]Humanities and Social Sciencesclustering
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BIOCOM-PIPE_AES - IDDN.FR.001.420014.000.S.C.2022.000.30100 - Agence pour la Protection des Programmes

2022

[INFO] Computer Science [cs]
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Atlas Français des bactéries du sol

2018

Battle Karimi est post-doctorante dans l’UMR Agroécologie à l’INRA de Dijon et s’intéresse à l’écologie des communautés microbiennes. Elle a intégré l’équipe de recherche Biocom en 2016 afin d’analyser l’ensemble des données environnementales et microbiologiques issues du RMQS (Réseau de Mesures de la Qualité des Sols) et de les valoriser sous la forme du présent ouvrage. Elle a participé à la rédaction et à la mise en forme de la majeure partie de l’atlas, et a coordonné son avancement au sein de l’équipe d’auteurs.Nicolas Chemidlin-Prévost Bouré est maître de conférences en biologie des sols à AgroSup Dijon et membre de l’UMR Agroécologie. Spécialisé en écologie des communautés microbienn…

[SDV] Life Sciences [q-bio][SDE] Environmental SciencesSolMicrobiologie du sol[SDV]Life Sciences [q-bio][SDE]Environmental SciencesBactérie du sol[SDV.BV]Life Sciences [q-bio]/Vegetal BiologyCommunauté bacterienne[SDV.BV] Life Sciences [q-bio]/Vegetal Biology[SDV.SA.SDS]Life Sciences [q-bio]/Agricultural sciences/Soil study[SDV.SA.SDS] Life Sciences [q-bio]/Agricultural sciences/Soil study
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Nouvelles techniques de méta-omiques pour le diagnostic de la qualité microbiologique des sols

2019

National audience; Les nouvelles techniques de méta-omiques ont bouleversé le domaine de l’écologie microbienne, notamment grâce à l’apport des nouvelles techniques de séquençage à haut débit. Cette révolution a aussi été bénéfique en proposant des outils afin de mesurer et de réaliser des diagnostics de la qualité microbiologique des sols. Quels sont les bio-indicateurs utilisés ? Comment sont-ils étudiés et appliqués à grande échelle ? Dans cet article, seront présentées les différentes techniques de méta-omiques illustrées par des exemples validés ou en cours de validation ainsi que les développements futurs afin de répondre à l’enjeu essentiel d’une meilleure compréhension et préservati…

[SDV] Life Sciences [q-bio][SDV]Life Sciences [q-bio]
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Dossier : les maxi-pouvoirs des micro-organismes du sol

2017

EABIOmEUBINRAUMR; Comment décrire le fonctionnement biologique des sols ? Quels rôles jouent les micro-organismes ? Comment les pratiques culturales influent-elles sur l’abondance et la diversité des micro-organismes ? Pour parler de ce monde souterrain encore peu connu, l’équipe de La France Agricole a fait parler plusieurs chercheurs de l’unité Agroécologie du Centre INRA de Dijon – Bourgogne-Franche-Comté. Parmi eux, Lionel Ranjard et Sébastien Terrat

[SDV] Life Sciences [q-bio][ SDV ] Life Sciences [q-bio][SDV]Life Sciences [q-bio]professionnelarticle de communicationmicro-organismes des solsvulgarisation
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Mapping, understanding and predicting soil microbial diversity across France

2018

International audience; Microorganisms are extremely abundant and diverse in soils. Their huge diversity is central in soil functioning regarding the diversity of functions it supports (mineralization, detoxification, stability of soil…) and is more and more studied, especially in a context of increasing pressure on soil resources. Conversely to macroorganisms whose distribution on a wide scale has been studied for over a century, spatial scaling and determinism distribution of soil microorganisms on nationwide scale still needs to be documented, notably to decipher the environmental filters shaping these communities. communities were investigated at the scale of France to characterize thei…

[SDE] Environmental Scienceswide-scalebiomassinteraction networkhabitats[SDE]Environmental Sciencesreferentialstructuremicrobial communitycomplex mixturessoildiversity
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Long-term intake of Lacticaseibacillus helveticus enhances bioavailability of omega-3 fatty acids in the mouse retina

2023

Omega-3 (n-3) polyunsaturated fatty acids (PUFAs), particularly docosahexaenoic acid (DHA), are required for the structure and function of the retina. They could also help to prevent or delay the development of retinopathies. Given the accumulating evidence showing the role of gut microbiota in regulating retinal physiology and host lipid metabolism, we evaluated the potential of long-term dietary supplementation with the Gram-positive bacterium Lacticaseibacillus helveticus strain VEL12193 to modulate the retinal n-3 PUFA content. A set of complementary approaches was used to study the impact of such a supplementation on the gut microbiota and host lipid/fatty acid (FA) metabolism. L. helv…

MicrobiotaProbioticRetina[SDV.AEN] Life Sciences [q-bio]/Food and NutritionPlasmaDocosahexaenoic acidMetabolismLiver[SDV.MHEP.OS] Life Sciences [q-bio]/Human health and pathology/Sensory Organs22 Fatty acidsLactic acid bacteria[SDV.MHEP.OS]Life Sciences [q-bio]/Human health and pathology/Sensory Organs[SDV.AEN]Life Sciences [q-bio]/Food and NutritionPhospholipids
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How to design an efficient and robust pipeline for 16S rRNA-gene sequence analysis to improve our understanding on microbial communities?

2015

Voici la composition du Comité d'Organisation (CO) de JOBIM 2015 Le Comité Logistique (CL) est présidé par : Philippe LEROY (UMR 1095 INRA/UBP, Unité Génétique, Diversité et Ecophysiologie des Céréales - GDEC, Clermont-Ferrand) Eric PEYRETAILLADE (Université d'Auvergne, Unité EA-CIDAM, Clermont-Ferrand) Trois personnes clefs: Secrétariat JOBIM2015 - Manon MARTINET (LB2MN-EA.CIDAM 4678, Université d'Auvergne) Gestion Administrative - Cathy RESSOT (Direction de la Recherche de l’Innovation et de la valorisation, Université d'Auvergne) Gestion Financière - Isabelle DELPIT (Direction de la Recherche de l’Innovation et de la valorisation, Université d'Auvergne) Le Comité Scientifique (CS) est pr…

métagénomique[SDV.AEN] Life Sciences [q-bio]/Food and Nutritionamplicon 16S bacteriacommunauté microbienne[SDV.MP]Life Sciences [q-bio]/Microbiology and Parasitology[ SDV.MP ] Life Sciences [q-bio]/Microbiology and Parasitology[ SDV.AEN ] Life Sciences [q-bio]/Food and Nutrition[SDV.IDA]Life Sciences [q-bio]/Food engineering[ SDV.IDA ] Life Sciences [q-bio]/Food engineering[SDV.IDA] Life Sciences [q-bio]/Food engineering[SDV.MP] Life Sciences [q-bio]/Microbiology and Parasitologybioinformatique[SDV.AEN]Life Sciences [q-bio]/Food and Nutrition
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Atlas français des champignons du sol

2023

Un seul gramme de sol peut contenir plusieurs millions de champignons microscopiques !Depuis un milliard d’années d’évolution et d’adaptations, le règne des champignons est un acteur incontournable de la biodiversité de notre planète. Les champignons sont souvent observés grâce à leurs sporophores qui se développent au-dessus du sol. Ces derniers représentent pourtant seulement la pointe de l’iceberg de leur diversité car les champignons sont en réalité majoritairement présents sous forme microscopique dans nos sols. Dans cet atlas, les auteurs, qui sont des chercheurs INRAE spécialistes en écologie microbienne et en sciences du sol, dévoilent une nouvelle vision des champignons. Ils ont ré…

[SDV] Life Sciences [q-bio]pédologieChampignonBiodiversité du sol
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Soil Bacterial and Fungal Communities of Urban Areas in France

2019

International audience

[SDV.SA]Life Sciences [q-bio]/Agricultural sciences[SDV.EE]Life Sciences [q-bio]/Ecology environment[SDV.SA] Life Sciences [q-bio]/Agricultural sciences[SDV.EE] Life Sciences [q-bio]/Ecology environment[SDV.SA.SDS]Life Sciences [q-bio]/Agricultural sciences/Soil study[SDV.SA.SDS] Life Sciences [q-bio]/Agricultural sciences/Soil studyComputingMilieux_MISCELLANEOUS
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Distribution spatiale et traduction fonctionnelle de la diversité microbienne des sols

2013

Le sol, après avoir longtemps été considéré comme un support de construction et de production, est maintenant légitimé comme un des derniers remparts pour la biodiversité terrestre. Parmi les organismes indigènes du sol, les microorganismes et notamment les bactéries sont les plus abondants et diversifiés avec plusieurs milliards d’individus représentant plusieurs millions d’espèces différentes par gramme de sol. De plus, ces microorganismes ont un rôle dans les cycles biogéochimiques des éléments majeurs (C, N, P…) et donc dans les services écosystèmiques que peut rendre le sol (recyclage éléments minéraux, qualité de l’atmosphère et de l’eau, production primaire…). Par conséquent, afin d’…

[SDV] Life Sciences [q-bio][SDE] Environmental Sciencesfonctionnement biologique[SDV]Life Sciences [q-bio][SDE]Environmental Sciences[SDV.BV]Life Sciences [q-bio]/Vegetal Biology[SDV.BV] Life Sciences [q-bio]/Vegetal Biologysolsbiogéographie microbiennepyroséquençage 454
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Comparaison de l'arisa et du séquençage haut débit pour l'étude des processus de diversification des communautés microbiennes du sol

2013

EA SPE EcolDur GenoSol; National audience

[SDV] Life Sciences [q-bio][SDE] Environmental Sciencescommunauté microbienneprocessus de diversification[SDV]Life Sciences [q-bio]relation aire espèce[SDE]Environmental Sciencessélection[SDV.BV]Life Sciences [q-bio]/Vegetal Biology[SDV.BV] Life Sciences [q-bio]/Vegetal BiologydispersionComputingMilieux_MISCELLANEOUS
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Le séquençage massif pour caractériser la diversité microbienne des sols, standardisation et applications au sein de la plateforme GenoSol

2014

EA SPE GenoSol EcolDur; National audience; Les microorganismes (bactéries, archées et champignons) sont les organismes les plus abondants et les plus diversifiés de la matrice sol. Ils représentent un réservoir encore largement méconnu et presque infini de ressources génétiques, fortement impliqué dans le fonctionnement biologique du sol et plus largement dans la plupart des services écosystémiques fournis par ce sol. Malgré ce rôle central dans le fonctionnement des écosystèmes, nos connaissances sur la diversité génétique, taxonomique et fonctionnelle de ces microorganismes restent limitées à ce jour. Ceci s’explique essentiellement par des difficultés techniques pour accéder à ces organi…

[SDV] Life Sciences [q-bio][SDE] Environmental Sciencesdiversité microbiennemicroorganismes[SDV]Life Sciences [q-bio][SDE]Environmental Sciencesveille technologique[SDV.BV]Life Sciences [q-bio]/Vegetal Biology[SDV.BV] Life Sciences [q-bio]/Vegetal BiologypyroséquençageRMQS
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La vie secrète des sols français

2019

National audience

[SDE] Environmental Sciences[SDE]Environmental SciencesComputingMilieux_MISCELLANEOUS
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SOIL MICROBIOLOGICAL QUALITY: STATE OF THE ART AND IMPORTANCE OF MICROBIAL COMMUNITIES FOR FRENCH AGRICULTURAL SOILS

2022

Soils are one of the major reservoirs of biological diversity on our planet, hosting a huge diversity of microorganisms. Numerous studies have demonstrated the role of microbial diversity in soil functions, such as nutrient cycling or pathogen management. Given the key role of soil microorganisms in the regulation of soil ecosystem functions, the environmental factors driving soil microbial diversity need to be understood. In France, we have the opportunity to benefit from a national soil survey (called the French Soil Quality Monitoring Network), which represents one of the most extensive and without a priori soil sampling survey available to date. Through several funded projects, we were …

[SDE] Environmental Sciences[SDV] Life Sciences [q-bio]co-occurring networksmicrobial richnessnational scalemicrobial diversityhabitatsland usemicrobial communitybiogeographysoil
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Optimisation du pyroséquençage haut-débit pour caractériser la diversité taxonomique des communautés bactériennes des sols

2012

La diversité microbienne d’un sol (que l’on estime à 100000 à 1000000 d’espè ces différentes par gramme de sol) est difficile à caractériser. Toutefois, d’importantes avancé es en biologie moléculaire (comme le développement du pyrosé quençage), ont permis d'obtenir plusieurs centaines de milliers de sé quences à partir d’un ADN métagénomique, permettant une meilleure caracté risation de la diversité des communautés microbiennes du sol. Toutefois, dans un contexte ou l’écologie microbienne du sol commence à s’accaparer les é chantillonnages de grande envergure (spatial et temporelle) afin de mieux hié rarchiser les processus et paramètres impliqués dans la diversification de ces communauté …

[SDV] Life Sciences [q-bio][ SDV ] Life Sciences [q-bio][SDV]Life Sciences [q-bio]cycle biogéochimique;modélisation;échantillonnage;changement d’échelleéchantillonnagechangement d’échellecycle biogéochimiquemodélisation
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Metabiobiote

2015

[SDV] Life Sciences [q-bio]
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GnS-PIPE: an optimized bionformatic pipeline to efficiently assess microbial taxonomic diversity of complex environments using high throughput sequen…

2013

International audience; The rRNA genes (16S, 18S, ITS) are widely used to study microbial communities in soils, as they can be easily amplified from metagenomic DNA. Moreover, the recent development of high-throughput sequencing technologies allows the assessment of millions of sequences from a single metagenomic DNA. Some pipelines are already available (e.g. QIIME or Mothur) to efficiently treat such data. However, the development of bioinformatic tools must now be validated by various biological tests. This was particularly true for key steps to appraise microbial diversity and richness. Here, we present a new pipeline named GnS-PIPE, a software application performing bacterial, archaeal…

[SDV] Life Sciences [q-bio][SDE] Environmental Sciencesbioinformatic[SDV]Life Sciences [q-bio][SDE]Environmental SciencesrRNA genepipeline[SDV.BV]Life Sciences [q-bio]/Vegetal Biology[SDV.BV] Life Sciences [q-bio]/Vegetal BiologyGnS-PIPEhigh throughput sequencingsoil microbial diversity
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Contrasting Spatial Patterns and Ecological Attributes of Soil Bacterial Taxa across French National Territory

2017

EA SPE BIOME GENOSOL UB UB Agrosup EA SPE BIOME GENOSOL UB UB AgrosupEASPEBIOMEGENOSOLUB UB Agrosup; Even though recent studies have clarified the influence of environmental filters on bacterial community diversity, those constraining bacterial populations variations remain unclear. In consequence, our ability to understand the ecological attributes of soil bacteria and to predict microbial community response to environmental stress is therefore limited. Here, we characterized the bacterial community composition and the various bacterial taxonomic groups constituting the community across the French country, by using a 16x16 km systematic grid representing 1825 sites to precisely decipher th…

[SDV] Life Sciences [q-bio]ecological attributes[ SDV ] Life Sciences [q-bio]territory scale[SDV]Life Sciences [q-bio]bacterial taxa;biogeography;ecological attributes;territory scalebacterial taxabiogeography
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Lasting effect of solid waste composts on soil microbial communities

2016

EABIOME; Lasting effect of solid waste composts on soil microbial communities. 16. International Symposium on Microbial Ecology - ISME16

[SDV] Life Sciences [q-bio][ SDV ] Life Sciences [q-bio][SDV]Life Sciences [q-bio]
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GnS-PIPE: an optimized bionformatic pipeline to efficiently assess microbial taxonomic diversity of complex environments using high throughput sequen…

2013

International audience; The rRNA genes (16S, 18S, ITS) are widely used to study microbial communities in soils, as they can be easily amplified from metagenomic DNA. Moreover, the recent development of high-throughput sequencing technologies allows the assessment of millions of sequences from a single metagenomic DNA. Some pipelines are already available (e.g. QIIME or Mothur) to efficiently treat such data. However, the development of bioinformatic tools must now be validated by various biological tests. This was particularly true for key steps to appraise microbial diversity and richness. Here, we present a new pipeline named GnS-PIPE, a software application performing bacterial, archaeal…

[SDV] Life Sciences [q-bio][SDE] Environmental Sciencesbioinformatic[SDV]Life Sciences [q-bio][SDE]Environmental Sciences[SDV.BV]Life Sciences [q-bio]/Vegetal BiologyrRNA genepipeline[SDV.BV] Life Sciences [q-bio]/Vegetal BiologyGnS-PIPEhigh throughput sequencingsoil microbial diversity
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How build up soil bacterial co-occurrence networks from wide spatial scalesampling?

2019

National audience; Although land use drives soil bacterial diversity and community structure, littleinformation about the bacterial interaction networks is available. Here, we investigatedbacterial co-occurrence networks in soils under different types of land use (forests, grasslands,crops and vineyards) by sampling 1798 sites in the French Soil Quality Monitoring Networkcovering all of France. An increase in bacterial richness was observed from forests tovineyards, whereas network complexity respectively decreased from 16,430 links to 2,046.However, the ratio of positive to negative links within the bacterial networks ranged from 2.9 inforests to 5.5 in vineyards. Networks structure was ce…

hub genera[SDE] Environmental Sciencesnation wide scalebacterial network[SDE]Environmental Sciencesland usesoil
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Assessing microbial biogeography by using a metagenomic approach

2016

EABIOmEIPMUBINRA; Soils are highly complex ecosystems and are considered as one of the Earth’s main reservoirs of biological diversity. Bacteria account for a major part of this biodiversity, and it is now clear that such microorganisms have a key role in soil functioning processes. However, environmental factors regulating the diversity of below-ground bacteria still need to be investigated, which limits our understanding of the distribution of such bacteria at various spatial scales. The overall objectives of this study were: (i) to determine the spatial patterning of bacterial community diversity in soils at a broad scale, and (ii) to rank the environmental filters most influencing this …

[SDV] Life Sciences [q-bio][ SDV ] Life Sciences [q-bio][SDV]Life Sciences [q-bio]
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