Search results for "ARN RIBOSOMAL"

showing 3 items of 3 documents

Human-Driven Microbiological Contamination of Benthic and Hyporheic Sediments of an Intermittent Peri-Urban River Assessed from MST and 16S rRNA Gene…

2017

International audience; Rivers are often challenged by fecal contaminations. The barrier effect of sediments against fecal bacteria was investigated through the use of a microbial source tracking (MST) toolbox, and by Next Generation Sequencing (NGS) of V5-V6 16S rRNA gene (rrs) sequences. Non-metric multi-dimensional scaling analysis of V5-V6 16S rRNA gene sequences differentiated bacteriomes according to their compartment of origin i.e., surface water against benthic and hyporheic sediments. Classification of these reads showed the most prevalent operating taxonomic units (OTU) to be allocated to Flavobacterium and Aquabacterium. Relative numbers of Gaiella, Haliangium, and Thermoleophilu…

0301 basic medicinePollutionMicrobiology (medical)benthic and hyporheic sedimentsmedia_common.quotation_subject[SDV]Life Sciences [q-bio]030106 microbiologyFECA CONTAMINATIONBiologyMicrobiologyarn ribosomal 16s03 medical and health sciencesperi-urban riverzone hyporhéique14. Life underwatermedia_commonOriginal ResearchEcologyBENTHIC AND HYPORHEIC SEDIMENTSMICROBIAL COMMUNITYHIGH THROUGH PUT SEQUENCING (HTS)zone benthiquebiology.organism_classification6. Clean waterFecal coliformAquabacteriumhigh throughput sequencing (HTS)Microbial population biology13. Climate actionBenthic zonefecal contaminationperi-urban river;benthic and hyporheic sediments;microbial community;high throughput sequencing (HTS);fecal contaminationcontamination biologiquePERI-URBAN RIVERCombined sewermicrobial communitySurface waterFlavobacterium
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Enterococcus asini sp. nov. isolated from the caecum of donkeys (Equus asinus)

1998

Several Gram-positive, non-spore-forming and non-motile bacteria consisting of pairs or chains of cocci were isolated during an investigation of the bacterial flora of the caecum of donkeys. Physiological and metabolic data indicated that the strains belong to the genus Enterococcus; phenotypic traits of these organisms were not consistent with any of the currently known Enterococcus species. 16S rRNA gene sequence analysis placed these strains in the genus Enterococcus. Their closest relatives are Enterococcus avium, Enterococcus faecium and Enterococcus pseudoavium with a sequence similarity of 97.4%. This group of strains can be differentiated from the other Enterococcus spp. by their ph…

DNA BacterialEnterococcus avium[SDE] Environmental SciencesARN RIBOSOMAL[SDV]Life Sciences [q-bio]Molecular Sequence DataImmunologyved/biology.organism_classification_rank.speciesMicrobiologyMicrobiologyCaecumEnterococcus pseudoaviumRNA Ribosomal 16SAnimalsCecumGram-Positive Bacterial InfectionsPhylogenyComputingMilieux_MISCELLANEOUSBase CompositionBase SequencebiologySequence Analysis RNAved/biologyEquidaebiochemical phenomena metabolism and nutritionRibosomal RNAANE16S ribosomal RNAbiology.organism_classification[SDV] Life Sciences [q-bio]RNA BacterialEnterococcus[SDE]Environmental SciencesEnterococcusBacteriaEnterococcus faecium
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Phylogenetic comparison of symbiotic (nodC and nifH) and 16S rRNA genes in strains of Rhizobium, Mesorhizobium and Bradyrhizobium isolated from Astra…

2000

Various studies reported different conclusions on the phylogenetic relationship between symbiotic (nod and nif) and chromosomal (16S rRNA) genes in rhizobia (Haukka et al, 1998). Some studies suggested that the phylogeny of nod genes could be related with the host plant (Ueda et al., 1995). In a previous study, rhizobia (44 isolates) from Astragalus, Oxytropis and Onobrychis pp have been classified into 14 distinct 16S rRNA gene types independently of their host plant and geographic origin. The majority of isolates were classified within the genus Mesorhizobium, and few within Rhizobium and Bradyrhizobium genera (Laguerre et al., 1997). The aim of the present study was to determine the dive…

[SDE] Environmental SciencesbiologyPhylogenetic treeARN RIBOSOMAL[SDV]Life Sciences [q-bio]Mesorhizobiumfood and beveragesbiochemical phenomena metabolism and nutrition16S ribosomal RNAbiology.organism_classificationBradyrhizobiumRhizobia[SDV] Life Sciences [q-bio]OnobrychisPhylogeneticsBotany[SDE]Environmental SciencesbacteriaRhizobium
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