Search results for "fusarium"

showing 10 items of 286 documents

Ecological role of mycotoxins produced by Fusarium graminearum : consequences of the presence of deoxynivalenol (DON) in crop residues on the soil mi…

2012

Fusarium graminearum is a plant pathogenic fungus, causing devastating disease “Fusarium head blight” (FHB) in cereals including wheat and maize. It also contaminates the grains with mycotoxins including deoxynivalenol (DON) which are toxic to human and animals. This disease has resulted in the serious losses in grain yield and quality. We established through a first bibliographic review that during off season fungus survives saprophytically on the crop residues (ecological habitat) and serves as primary inoculum for the next season crop. However, we noticed also that the literature was poor about the role mycotoxins could play in the establishment of F. graminearum in such a habitat. The m…

[SDV.SA]Life Sciences [q-bio]/Agricultural sciencesCrop residuesPreceding cropsoil tillageRésidus de culturesoil microbial community structureEcological requirements[ SDV.EE ] Life Sciences [q-bio]/Ecology environmentsaprophytic abilityTillagequantitative polymerase chain reaction (qPCR)population dynamicsecological nicheearthwormSaprotrophic development[ SDV.SA ] Life Sciences [q-bio]/Agricultural sciences[SDV.EE]Life Sciences [q-bio]/Ecology environment[SDV.SA] Life Sciences [q-bio]/Agricultural scienceswheat strawWheat diseasesFusarium Head Blight (FHB)Mycotoxins[SDV] Life Sciences [q-bio]terminal restriction fragment length polymorphism (TRFLP)Habitat[SDV.EE] Life Sciences [q-bio]/Ecology environmenthigh performance liquid chromatography (HPLC)Soil microbial ecologyamensalism
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Impact of deoxynivalenol on soil microflora and fauna

2012

F. graminearum is an important pathogen that causes head blight of cereal crops as wheat and maize. It also produces the mycotoxins (as Deoxynivalenol=DON) which are toxic to the human and animals. During the off season the pathogen survives in the soil, on weeds and in crop residues. A 24 weeks study was conducted in controlled conditions (microcosms of natural soil, 17 °C, 80% WHC) to test whether the presence of DON in the wheat crop residues gives competitive advantage to F. graminearum over the other soil microflora and fauna to survive and develop a primary inoculum during the decomposition process. This study was carried out in the presence of the whole soil biota (i.e. fungi, bacter…

[SDV.SA]Life Sciences [q-bio]/Agricultural sciences[SDV.SA] Life Sciences [q-bio]/Agricultural sciencesfungifusarium graminearumdeoxynivalenolfood and beveragesmultitrophic interactionsoil biotamycotoxin
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Diversité des populations pathogènes de Fusarium oxysporum associés à la tomate en Algérie et sur le pourtour Méditerranéen

2009

[SDV.SA]Life Sciences [q-bio]/Agricultural sciencestomate[SDV.SA] Life Sciences [q-bio]/Agricultural sciencesfusarium oxysporumalgérie
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Étude du développement saprophyte de [i]F. graminearum[/i] champignon pathogène du blé et producteur de mycotoxines

2009

SPE affiche, résumé; Troisième plante cultivée au monde derrière le maïs et le riz, première en ce qui concerne les échanges commerciaux, le blé est l’un des aliments prépondérants en production animale et les produits issus de sa transformation sont à la base de l’alimentation humaine. La fusariose est l’une des principales pathologies fongiques touchant les cultures de blé : elle provoque notamment un dessèchement des épis touchés. Un « pool » de champignons appartenant aux genres Fusarium et Microdochium est responsable de cette maladie. Celle-ci est connue depuis longtemps puisque F. graminearum, l’agent principal de la pathologie, a été décrit en 1839 (Schwabe, Flora Anhaltina 2). Outr…

[SDV] Life Sciences [q-bio]Fusarium graminearumdéveloppement saprophyte[ SDV ] Life Sciences [q-bio]mycotoxineblé[SDV]Life Sciences [q-bio]champignon pathogèneétudeF. graminearum
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Fusariose du cyclamen : travaux sur la lutte biologique. Phytoma-La défense des végétaux

2016

SPEIPM; Fusariose du cyclamen : travaux sur la lutte biologique. Phytoma-La défense des végétaux

[SDV] Life Sciences [q-bio][ SDV ] Life Sciences [q-bio][SDV]Life Sciences [q-bio]horticulturebiological controlfusarium wiltcyclamen persicum
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Étude du développement saprophyte de Fusarium graminearum, champignon pathogène du blé et producteur de mycotoxines

2010

National audience; Troisième plante cultivée au monde derrière le maïs et le riz, première en ce qui concerne les échanges commerciaux, le blé est l’un des aliments prépondérants en production animale et les produits issus de sa transformation sont à la base de l’alimentation humaine. La fusariose est l’une des principales pathologies fongiques touchant les cultures de blé : elle provoque notamment un dessèchement des épis touchés. Un « pool » de champignons appartenant aux genres Fusarium et Microdochium est responsable de cette maladie. Celle-ci est connue depuis longtemps puisque F. graminearum, l’agent principal de la pathologie, a été décrit en 1839 (Schwabe, Flora Anhaltina 2). Outre …

[SDV] Life Sciences [q-bio][SDE] Environmental SciencesFusarium graminearumdéveloppement saprophyteblé[SDV]Life Sciences [q-bio]producteur de mycotoxines[SDE]Environmental Sciences[SDV.BV]Life Sciences [q-bio]/Vegetal Biology[SDV.BV] Life Sciences [q-bio]/Vegetal Biologychampignon pathogène
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Root rot of pea: characterization and biocontrol of the soil-borne disease complex including Aphanomyces euteiches

2018

Pea root rot is an increasing constraint in most of intensive pea cropping areas across the globe. The pathogenic complex responsible for the disease is composed of soil-borne fungal and oomycete pathogens such as Fusarium solani, F.oxysporum, F. avenaceum, F. culmorum, Rhizoctonia solani, Thielaviopsis basicola, Ascochyta pinodella, Pythium spp., Aphanomyces euteiches and probably others not yet identified. The diversity of their ecological and pathogenic properties can explain the worldwide dispersion of the disease and the absence of chemical, agricultural or genetic control tools. My research program aims at characterizing the parasitic consortium occurring in the North of France and at…

[SDV] Life Sciences [q-bio][SDE] Environmental SciencesFusarium[SDV]Life Sciences [q-bio]root rot[SDE]Environmental Sciencespeafood and beverages[SDV.BV]Life Sciences [q-bio]/Vegetal Biology[SDV.BV] Life Sciences [q-bio]/Vegetal BiologybiocontrolAphanomyces
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Root rot of pea : characterization and biocontrol of the soil-borne disease complex including Aphanomyces euteiches

2018

Pea root rot is an increasing constraint in most of intensive pea cropping areas across the globe. The pathogenic complex responsible for the disease is composed of soil-borne fungal and oomycete pathogens such as Fusarium solani, F.oxysporum, F. avenaceum, F. culmorum, Rhizoctonia solani, Thielaviopsis basicola, Ascochyta pinodella, Pythium spp., Aphanomyces euteiches and probably others not yet identified. The diversity of their ecological and pathogenic properties can explain the worldwide dispersion of the disease and the absence of chemical, agricultural or genetic control tools. My research program aims at characterizing the parasitic consortium occurring in the North of France and at…

[SDV] Life Sciences [q-bio][SDE] Environmental SciencesFusarium[SDV]Life Sciences [q-bio]root rot[SDE]Environmental Sciencespeafood and beverages[SDV.BV]Life Sciences [q-bio]/Vegetal Biology[SDV.BV] Life Sciences [q-bio]/Vegetal BiologybiocontrolAphanomyces
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Utilisation et comparaison de méthodes de caractérisation moléculaire appliquées au genre Fusarium dans le cadre de la gestion de la collection de Mi…

2008

Affiche; Les champignons microscopiques du genre Fusarium (phylum des Ascomycètes) sontresponsables de nombreuses maladies sur plantes (blé, tomate, palmier …) engendrant de fortespertes de rendement. Ils sont par ailleurs responsables de la production de mycotoxines quipeuvent avoir un impact non négligeable en santé animale et humaine.

[SDV] Life Sciences [q-bio][SDE] Environmental Sciences[ SDV ] Life Sciences [q-bio]Fusariumamorce espèce-spécifique[SDV]Life Sciences [q-bio][SDE]Environmental Sciencesséquençagecollection de microorganismes MIAEclonageFusarium;collection de microorganismes MIAE;séquençage;clonage;amorce espèce-spécifique
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Investing induced resistance and competition as a biocontrol strategy of Fusarium oxysporum f.sp. cubense using non-pathogenic Fusarium oxysporum

2007

[SDV] Life Sciences [q-bio][SDE] Environmental Sciences[SDV]Life Sciences [q-bio][SDE]Environmental SciencesFusarium oxysporum f.sp. cubenseFusarium oxysporum
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