Effect of Trichothecenes Produced by Fusarium graminearum during Fusarium Head Blight Development in Six Cereal Species

Langevin, François; Eudes, François; Comeau, A.

doi:10.1023/b:ejpp.0000041568.31778.ad

Cited by 124 publications

(113 citation statements)

References 40 publications

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“…The percentage of samples exceeding 1000 µg kg -1 DON was 31, 22 and 1.4% for wheat, barley and oats respectively. This data were matched in a study of ear blight susceptibility of cereal species in inoculated glasshouse experiments (Langevin et al 2004). In the epidemic years of 1993 and 1994 in Minnesota commercial cereal samples were analysed for DON.…”

Section: Introductionmentioning

confidence: 99%

Fusarium mycotoxin content of UK organic and conventional oats

Edwards¹

2009

Food Additives & Contaminants: Part A

181

169

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Section: Introductionmentioning

confidence: 99%

Fusarium mycotoxin content of UK organic and conventional oats

Edwards¹

2009

Food Additives & Contaminants: Part A

181

169

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“…Considerable type II resistance is found in many barley varieties (20), although spreading occurs in barley under field conditions (21). Type II resistance was compared in the wheat cv.…”

mentioning

confidence: 99%

Infection patterns in barley and wheat spikes inoculated with wild-type and trichodiene synthase gene disrupted Fusarium graminearum

Jansen

Wettstein

Schäfer

et al. 2005

Proc. Natl. Acad. Sci. U.S.A.

559

479

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Fusarium head blight epidemics of wheat and barley cause heavy economic losses to farmers due to yield decreases and production of mycotoxin that renders the grain useless for flour and malt products. No highly resistant cultivars are available at present. Hyphae of germinating fungal spores use different paths of infection: After germination at the extruded tip of an ovary, the hyphae travel along the epicarp in the space between the lemma and palea. Infection of the developing kernel proceeds through the epicarp, successively destroying the layers of the fruit coat and finally the starch and protein accumulating endosperm. Hyphae reaching the rachis proceed to apically located developing kernels. Using a constitutively green fluorescence protein-expressing Fusarium wild-type strain, and its knockout mutant, preventing trichothecene synthesis, we demonstrate that trichothecenes are not a virulence factor during infection through the fruit coat. In the absence of trichothecenes, the fungus is blocked by the development of heavy cell wall thickenings in the rachis node of Nandu wheat, a defense inhibited by the mycotoxin. In barley hyphae of both wild-type and the trichothecene knockout mutant, are inhibited at the rachis node and rachilla, limiting infection of adjacent florets through the phloem and along the surface of the rachis. Effective resistance to Fusarium head blight requires expression of genes that combat these different pathways of infection.

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“…These genotypes produce "premature spikes" with the upper portion wilted, leading to bleaching and yield reduction, but are not colonized by the fungus, so DON content is reduced [4]. DON not only plays an important role in fungal spreading and disease development but also threatens human and livestock health with microdosis [9,42]. DON present in food at mg/kg can cause vomiting, diarrhea, fever and other symptoms of acute poisoning in humans and animals, and it is also closely correlated with anemia, immuno-suppression, and cancer [43,44].…”

Section: Fhb Reduce Wheat Yield and Qualitymentioning

confidence: 99%

Controlling fusarium head blight of wheat (triticum aestivum L.) with genetics

Zhang¹,

Luo²,

Ren³

et al. 2011

ABB

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Fusarium head blight, one of the most destructive diseases of wheat (Triticum aestivum L.), results in significant economic losses from reduced grain yield and quality. In recent decades, the disease has been frequently recorded, especially under warm and wet climatic conditions. Genetic resistance has engaged plant breeders because the use of resistant cultivars is the most economical, effective, and environmentally friendly method of control. In the present paper, we summarize the research on resistance genetics of Fusarium head blight, suggest a new method for evaluating Fusarium head blight resistance, and recommend strategies for creating and developing new sources of resistance to Fusarium head blight through the use of alien genes and chromosomal segments.

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Effect of Trichothecenes Produced by Fusarium graminearum during Fusarium Head Blight Development in Six Cereal Species

Cited by 124 publications

References 40 publications

Fusarium mycotoxin content of UK organic and conventional oats

Fusarium mycotoxin content of UK organic and conventional oats

Infection patterns in barley and wheat spikes inoculated with wild-type and trichodiene synthase gene disrupted Fusarium graminearum

Controlling fusarium head blight of wheat (triticum aestivum L.) with genetics

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