Search results for "Herb"

showing 10 items of 856 documents

Comparative analysis of PR gene expression in tomato inoculated with virulent Fusarium oxysporum f. sp. lycopersici and the biocontrol strain F. oxys…

2008

Non-pathogenic strains of Fusarium oxysporum have the capacity to protect plants against wilt induced by pathogenic strains of F. oxysporum. Among the mechanisms involved in this protection, induced systemic resistance has been demonstrated by using a split-root method. The aim of this study was to follow the accumulation kinetics of transcripts encoding 5 PR proteins in roots and leaves of tomato inoculated with a pathogenic or a protective strain in comparison to non-inoculated control. Moreover quantification of transcripts was assessed by real-time RT-PCR in cell cultures inoculated with the pathogenic or the protective strain. Results showed a lower expression of PR encoding genes in t…

[SDV]Life Sciences [q-bio]VirulencePlant ScienceMicrobiologyACIDIC CHITINASENORTHEN BLOTFusarium oxysporumGeneticsPlant defense against herbivoryBASIC CHITINASEbiologyInoculationREAL-TIMEBASIC GLUCANASEfood and beveragesPR-1aFungi imperfectiGlucanasebiology.organism_classificationACIDIC GLUCANASEBIOCONTROLEFusarium oxysporum f.sp. lycopersiciCELL CUTURES[SDE]Environmental SciencesChitinasebiology.proteinFUSARIUM OXYSPORUM F. SP. LYCOPERSICIPhysiological and Molecular Plant Pathology
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Une consultation de Wamèse sur une question de droit fiscal

2006

[SHS.DROIT]Humanities and Social Sciences/Law[SHS.DROIT] Humanities and Social Sciences/Lawdroit fiscalJacques Malherbe[ SHS.DROIT ] Humanities and Social Sciences/Lawconsultation de Wamèse
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Albert Soubies et Charles Malherbe : contributions à l’histoire de l’Opéra-Comique

2017

International audience; Cet article traite de plusieurs ouvrages écrits sur l’Opéra-Comique au tournant des xixe et xxe siècles. Il s’arrête en particulier sur les livres d’Arthur Pougin, Albert Soubies et Charles Malherbe. Les préfaces des ouvrages sont analysées pour comprendre les intentions historiques qui animent ces auteurs. Sur quelles sources travaillent-ils ? Quelles sont les places respectives de la compilation d’autres ouvrages et de l’analyse du document original ? Une attention particulière est portée à l’Almanach des spectacles édité par Soubies à partir de 1874, et à son utilisation.

[SHS.HIST] Humanities and Social Sciences/HistoryAlmanach des spectaclesAlbert SoubiesCharles MalherbeOpéra-Comique[SHS.HIST]Humanities and Social Sciences/Historydémarche historique
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Robotique et imagerie pour le désherbage localisé

2020

National audience; L’agriculture moderne est en train d’évoluer vers des systèmes moins dépendants en pesticides (dont les herbicides restent les pesticides les plus difficiles à réduire) en ayant recours de plus en plus à des outils de précision (capteurs, plateformes mobiles) pour évaluer et prendre en compte la variabilité intra-parcellaire. Dans ce contexte, ces outils se présentent comme des leviers techniques pour une gestion raisonnée des bioagresseurs, et plus particulièrement les adventices. Cela nécessite de caractériser au mieux l’état d’infestation d’une parcelle grâce à des technologies non-invasives et à haut débit d’acquisition comme l’imagerie afin de réaliser un désherbage …

[SPI]Engineering Sciences [physics][SPI] Engineering Sciences [physics]agroécologieimagerierobotiquedésherbage
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Caractérisation de la réponse transcriptionnelle du vulpin des champs (Alopecurus myosuroides) à des herbicides inhibiteurs de l’acétyle-coenzyme A c…

2014

L’objectif de cette thèse était d’étudier les mécanismes génétiques de la résistance non liée à la cible à des herbicides appartenant aux groupes des inhibiteurs de l’acétyl-coenzyme A carboxylase (ACCase) et de l’acétolactate synthase (ALS) chez le vulpin des champs (Alopecurus myosuroides Huds.), une graminée adventice non modèle d’importance agronomique. Deux méthodes de transcriptomique ont été employées : l’hybridation soustractive suppressive (SSH) et le séquençage de transcriptome complet (RNA-seq). La SSH a permis d’identifier des transcrits potentiellement en cause dans la RNLC au fénoxaprop, à l’haloxyfop (inhibiteurs de l’ACCase) ou au pyroxsulame (inhibiteur de l’ALS). La surexp…

acétolactate-synthase (ALS)[SDV] Life Sciences [q-bio][SDE] Environmental SciencesherbicideCYPtranscriptomiqueVulpin (Alopecurus myosuroides)résistanceacétyl-coenzyme A carboxylase (ACCase)résistance non liée à la cible
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Evolution of herbicide resistance in mugwort (Ambrosia artemisiifolia L.): search for genetic determinisms and application to molecular diagnosis

2022

Common ragweed (Ambrosia artemisiifolia L.), a particularly troublesome and allergenic weed, is mainly controlled in agricultural fields using ALS inhibitor herbicides. Recent cases of herbicide resistance have been reported in France and are jeopardising the efficacy of this mode of action. Both target site resistance (TSR, structural mutation in ALS gene) and non target site resistance (NTSR, regulatory and/or structural mutations in secondary metabolism) are involved. The fundamental aim of this work was to identify the genetic determinisms of resistance to ALS inhibitors that have evolved in common ragweed populations in France. As an applied objective, this work also aimed to prepare t…

acétolactate-synthase (ALS)[SDV] Life Sciences [q-bio]diagnosistranscriptomiquecommon ragweedherbicide resistanceacetolactate synthase (ALS)diagnosticRNA sequencingrésistance aux herbicidesAmbroisieséquençage à très haut débithigh throughput sequencing
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Substancje allelopatycznie aktywne jako potencjalne biopestycydy

2006

Zaprezentowano rośliny marchwi jako źródło substancji wykazujących aktywność allelopatyczną. Przedstawiono sposoby efektywnej izolacji poszczególnych allelozwiązków z nasion marchwi oraz zakres ich aktywności biologicznej. Rezultaty badań wskazują na to, że zarówno olejek eteryczny jak i wodny ekstrakt z nasion marchwi wykazują silną, aczkolwiek odmienną aktywność allelopatyczną warunkowaną obecnością specyficznych substancji wykazujących różną aktywność biologiczną.

allelochemicalsfungicidal activityaktywność przeciwgrzybowaaktywność herbicydowaDaucus carota L.allelozwiązkiherbicidal activityChemik : miesięcznik naukowo-techniczny
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Recent advances in the research on herbicidally active aminomethylelebisphosphonic acids.

1999

Influence of the mode of application of herbicidally active N-pyridylaminomethylenebi-sphosphonic acids on their uptake by plants was studied in some detail. The experimental evidence is given that accounts for a multiple mode of action of these herbicides.

aminophosphonateOrganic Chemistryaromatic amino acidsMultiple modesBiochemistryInorganic ChemistryGlutamineaminophosphonate; herbicide; glutamine; aromatic amino acidschemistry.chemical_compoundchemistryAminophosphonateherbicideAromatic amino acidsglutamineOrganic chemistry
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Effects of a glyphosate-based herbicide on survival and oxidative status of a non-target herbivore, the Colorado potato beetle (Leptinotarsa decemlin…

2019

Glyphosate is the globally most used herbicide against a wide range of weeds. Glyphosate has been considered safe to animals as it mainly targets physiological pathways in plants. However, recent toxicological studies have revealed that glyphosate can cause various toxic effects also on animals. In this study, we investigated the direct toxic effects of a glyphosate-based herbicide (GBH, Roundup® Bio) on 1) survival and 2) oxidative status of a non-target herbivore by using Colorado potato beetles (Leptinotarsa decemlineata), originating from Poland and USA, as model species. Larvae were randomly divided into three groups: 1) high concentration (100% Roundup Bio, 360 g/l), 2) low concentrat…

antioksidantitfosfaatitorganophosphatefungikoloradonkuoriainentorjunta-aineetherbisiditresistenssiantioxidant defenceglyfosaattihyönteisetoksidatiivinen stressipesticideRoundup
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Encapsulated Limonene: A Pleasant Lemon-Like Aroma with Promising Application in the Agri-Food Industry. A Review

2020

International audience; Limonene, mainly found as a major component in Citrus spp., has been proven to possess a valuable potential as sustainable replacement to synthetic pesticides and food preservatives. This review intends to give a clear overview of the principal emerging applications of limonene in the agri-food industry as antimicrobial, herbicidal and antioxidant agent. To successfully use limonene in a greener agri-food industry, its preservation had become a top concern for manufacturers. In order to elucidate the most efficient and sustainable manner to encapsulate limonene, the different techniques and materials tested up to the present are also reviewed. In general, encapsulati…

antioxidantFood industryPharmaceutical ScienceReview02 engineering and technologyAntioxidantsAnalytical ChemistryFoodborne Diseaseslcsh:QD241-441chemistry.chemical_compound0404 agricultural biotechnologyAnti-Infective Agentslcsh:Organic chemistrySustainable systemsDrug Discovery[CHIM]Chemical SciencesHumansPhysical and Theoretical ChemistryherbicidalAroma2. Zero hungerFood PreservativesLimonenebiologybusiness.industryOrganic Chemistry04 agricultural and veterinary sciences15. Life on land021001 nanoscience & nanotechnologybiology.organism_classification040401 food scienceMicrosphereschemistryChemistry (miscellaneous)Food productsFood PreservativesMolecular Medicinelimoneneantimicrobialencapsulationagri-food industryBiochemical engineering0210 nano-technologybusinessMolecules
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