Search results for "Phytopathology"

showing 10 items of 108 documents

A Major Effect Gene Controlling Development and Pathogenicity in Botrytis cinerea Identified Through Genetic Analysis of Natural Mycelial Non-pathoge…

2021

Botrytis cinerea is a necrotrophic plant pathogenic fungus with a wide host range. Its natural populations are phenotypically and genetically very diverse. A survey of B. cinerea isolates causing gray mold in the vineyards of Castilla y León, Spain, was carried out and as a result eight non-pathogenic natural variants were identified. Phenotypically these isolates belong to two groups. The first group consists of seven isolates displaying a characteristic mycelial morphotype, which do not sporulate and is unable to produce sclerotia. The second group includes one isolate, which sporulates profusely and does not produce sclerotia. All of them are unresponsive to light. Crosses between a repr…

Geneticsgray moldBulked segregant analysisLocus (genetics)bulked segregant analysiPlant SciencePathogenic fungusBiologylcsh:Plant cultureacetyl transferasebiology.organism_classificationGenetic analysisLaboratorium voor PhytopathologieDNA binding domainComplementationbulked segregant analysisLaboratory of Phytopathologygenetic complementationlcsh:SB1-1110AlleleEPSGeneBotrytis cinereaOriginal ResearchFrontiers in Plant Science
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La résistance du vulpin des champs aux anti-graminées dans les blés en France. La métabolisation : son importance crée une situation à risque

2006

National audience; La résistance du Vulpin aux anti-graminées inhibiteurs de l'acétyl-coenzyme carboxylase ACC],« fops » et « dimes ») constitue un problème de désherbage majeur en France. 243 populations de vulpin (116 essentiellement dans le nord-est de la France, 127en Côte-d'Or) ont été analysées à l'aide de tests biologiques de sensibilité à des inhibiteurs de l'ACC et de tests moléculaires d'identification de résistances de cible. Des résistances ont été identifiées dans 241 des 243 populations. L'essentiel (plus de 75%) des résistances aux deux « fops» les plus utilisés est dû à des résistances par métabolisation.Ces résistances sont les plus préoccupantes en terme de gestion chimiqu…

HERBICIDES ANTIGRAMINEESMETABOLISATIONVULPIN[SDV.BV.PEP] Life Sciences [q-bio]/Vegetal Biology/Phytopathology and phytopharmacyRESISTANCE[SDV.BV.PEP]Life Sciences [q-bio]/Vegetal Biology/Phytopathology and phytopharmacy
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Cryptogein-Induced Anion Effluxes

2014

Anion effluxes are amongst the earliest reactions of plant cells to elicitors of defence responses. However, their properties and their role in disease resistance remain almost unknown. We previously demonstrated that cryptogein, an elicitor of tobacco defence responses, induces a nitrate (NO(3) (-)) efflux. This efflux is an early prerequisite to the cryptogein-triggered hypersensitive response (HR). Here, we analyzed the electrophysiological properties of the elicitor-mediated NO(3) (-) efflux and clarified the mechanisms through which it contributes to cell death. Application of the discontinuous single electrode voltage-clamp technique in tobacco cells elicited with cryptogein enabled u…

Hypersensitive responseProgrammed cell death[SDV]Life Sciences [q-bio]chemistry.chemical_elementPlant ScienceBiologyCalciumCELL DEATHCALCIUM[SDV.GEN.GPL]Life Sciences [q-bio]/Genetics/Plants genetics[SDV.GEN.GPL] Life Sciences [q-bio]/Genetics/Plants genetics[SDV.BV]Life Sciences [q-bio]/Vegetal BiologyPLASMA MEMBRANE DEPOLARIZATIONComputingMilieux_MISCELLANEOUSCRYPTOGEINfood and beveragesDepolarizationPlant cell[SDV.BV.PEP]Life Sciences [q-bio]/Vegetal Biology/Phytopathology and phytopharmacyElicitorCell biologyPROTEASESElectrophysiologychemistryBiochemistryEffluxResearch PaperANION CHANNELSPlant Signaling & Behavior
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Trois modes de production comparés en Bourgogne viticole. Indicateurs environnementaux, d'utilisation des produits phytos, d'état sanitaire de la vig…

2010

International audience; Un essai viticole de moyenne durée a été mis en place en Bourgogne en 2005 afin de comparer trois modes de production: viticulture de référence, viticulture biologique, viticulture « Ecophyto 2018 » (avec réduction d'intrants). Pour chaque mode de production, les principaux paramètres agronomiques quantitatifs et qualitatifs sur la plante et le sol sont déterminés. Les aspects environnementaux sont appréhendés à travers la biocénose du sol et des critères définis dans le cadre du Grenelle de l'Environnement (nombre de passages, quantités de substances actives, IFT). Les incidences économiques sont évaluées. Les premiers résultats montrentque leschoixd'itinéraire tech…

INDICATEUR DE PRODUCTIONPREVENTION POLLUTIONCOUT PRODUCTIONDICOTYLEDONES[SDV.BV.PEP] Life Sciences [q-bio]/Vegetal Biology/Phytopathology and phytopharmacy[SDV.BV.PEP]Life Sciences [q-bio]/Vegetal Biology/Phytopathology and phytopharmacy
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Résistance au glyphosate des soupçons cartographiés

2007

National audience

LISERONGLYPHOSATECHIENDENTComputingMilieux_MISCELLANEOUS[SDV.BV.PEP] Life Sciences [q-bio]/Vegetal Biology/Phytopathology and phytopharmacy[SDV.BV.PEP]Life Sciences [q-bio]/Vegetal Biology/Phytopathology and phytopharmacy
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Méthodes alternatives de lutte contre les maladies des plantes

2003

LUTTE CONTRE LES MALADIESPROPHYLAXIE[SDV.BV.PEP] Life Sciences [q-bio]/Vegetal Biology/Phytopathology and phytopharmacy[SDV.BV.PEP]Life Sciences [q-bio]/Vegetal Biology/Phytopathology and phytopharmacy
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Vector Transmission of a Plant-Pathogenic Bacterium in the Arsenophonus Clade Sharing Ecological Traits with Facultative Insect Endosymbionts

2009

Bressan, A., Semetey, O., Arneodo, J., Lherminier, J., and BoudonPadieu, E. 2009. Vector transmission of a plant-pathogenic bacterium in the Arsenophonus clade sharing ecological traits with facultative insect endosymbionts. Phytopathology 99:1289-1296. The planthopper Pentastiridius leporinus (Hemiptera: Cixiidae) is the major vector of a nonculturable plant-pathogenic γ-3 proteobacterium associated with a disease of sugar beet called syndrome “basses richesses” (SBR). The bacterium, here called SBR bacterium, belongs to the Arsenophonous clade, which includes mostly insect-associated facultative symbionts. Assays using field-collected planthopper nymphs and adults were carried out to inve…

MaleNymph0106 biological sciencesfood.ingredientmedia_common.quotation_subjectPlant ScienceInsectPolymerase Chain Reaction01 natural sciencesHemipteraPHLOEM-LIMITED BACTERIA03 medical and health sciencesPlanthopperfoodMicroscopy Electron TransmissionAnimals"CANDIDATUS PHLOMOBACTER FRAGARIAE"SymbiosisNymphSYNDROME DE "BASSES RICHESSES"Plant Diseases030304 developmental biologymedia_common0303 health sciencesFacultativebiologyEcologyfungibiology.organism_classificationCixiidaeBiological EvolutionHemipteraInsect Vectors[SDV.BV.PEP]Life Sciences [q-bio]/Vegetal Biology/Phytopathology and phytopharmacyINSECTEFemaleSugar beetCIXIUS WAGNERIBeta vulgarisArsenophonusAgronomy and Crop ScienceGammaproteobacteriaPENTASTIRIDIUS LEPORINUS010606 plant biology & botany
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Biological activity of the two geometrical isomers of methomyl on maize mitochondria

1983

Abstract Methomyl ( S -methyl- N [(methylcarbamoyl)oxy]thioacetimidate), the active ingredient in lannate insecticide, gave a geometrical isomer after acid

MethomylPlant ScienceHorticultureBiology01 natural sciencesBiochemistryMedicinal chemistry03 medical and health scienceschemistry.chemical_compoundHelminthosporium maydisMolecular BiologyComputingMilieux_MISCELLANEOUS[SDV.BV.PEP] Life Sciences [q-bio]/Vegetal Biology/Phytopathology and phytopharmacyActive ingredient0303 health sciences010405 organic chemistry030302 biochemistry & molecular biologyBiological activityGeneral MedicineZea maysBipolaris maydis0104 chemical sciences[SDV.BV.PEP]Life Sciences [q-bio]/Vegetal Biology/Phytopathology and phytopharmacyInvestigation methodschemistryBiochemistryCis–trans isomerism
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Effect of 2,4-Diacetylphloroglucinol on Pithium : cellular responses and variation in sensitivity among propagules and species

2003

International audience

POUVOIR PATHOGENE24-DIACETYLPHLOROGLUCINOLComputingMilieux_MISCELLANEOUS[SDV.BV.PEP] Life Sciences [q-bio]/Vegetal Biology/Phytopathology and phytopharmacy[SDV.BV.PEP]Life Sciences [q-bio]/Vegetal Biology/Phytopathology and phytopharmacy
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Genetic diversity and pathogenic variability among isolates of Colletotrichum species from strawberry

2003

International audience

POUVOIR PATHOGENEFRAISIERAMELIORATION DES PLANTESGENETIQUEComputingMilieux_MISCELLANEOUS[SDV.BV.PEP] Life Sciences [q-bio]/Vegetal Biology/Phytopathology and phytopharmacy[SDV.BV.PEP]Life Sciences [q-bio]/Vegetal Biology/Phytopathology and phytopharmacy
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