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Article published the April 7, 2021
Introduction The toxigenic fungi cause heavy losses in the in the yield, but the toxic poisoning of the grain is economically far more important. They provide food safety risk in human food supply and the same is true also for the animal husbandry. The amount of the global grain mass contaminated by mycotoxins is estimated to about 210 million t. A significant part of the storage loss, estimated ...
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Article published the March 17, 2021
1. Introduction Fusarium head blight (FHB) is one of the most destructive diseases of wheat (Triticum aestivum L.) worldwide. Research in the last decades clarifies that the most important toxin-regulating agent is disease resistance [1–4]. Therefore, most of the work belongs to the competence of plant breeding. The artificial inoculations have a larger significance as the natural condition ...
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Participation in Forum on February 11, 2021
Most of the mycotoxin contamination is of field origin, this is valid also for aflatoxin, in the latest ecition of Compendium of corn diseases it was transferrer to field fungi and no discussed in chapter stotage fungi. From maize the higher aflatoxin rate from aflatoxin B1 was more than 2200 pp, fumonisin B1+B2 was 46 mg/kgand DON 27 mg/kg.In wheam the worst data wete between 20 and 30 mg/kg, but ...
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Participation in Forum on January 5, 2021
I think that the best way is the prevention of the preharvest contamination. When you see the latest (4th) edition of Compendium of corn diseases, Aspergillus flavus was reclassified as mainly of field origin. From the Fusarium spp. this is not new. Most of the wheat and maize genotypes produce toxin contamination proportional with the visual severity, but a changing rate 10-20 % show overproducti ...
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Participation in Forum on October 24, 2020
My largest problem that in your chart the first step is the forecasting. The prevention would be better, as I mentioned we have resistance differences to exploit. As it cannot ever be perfect, at least not at out present genetic knowledge, the significantly lower toxin contamination could be treated at a much better efficacy than the high one. This is clear. Toxin binders, antibiotics are expensiv ...
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Participation in Forum on October 24, 2020
Occurrence of aflatoxin become regular in hot and dry seasons, lower occurrence wa in 2007, high in 2012 and medium in 2017. Natural aflatoxin contamination reached 3-400 ppb in maize (2017). As A. flavus is a regular component of fungi in the soil and sporadic infection can be seen yearly, the sword of Damocles is over us. However we detected high differences in aflatoxin contamination between h ...
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Article published the March 6, 2019
1. Introduction Maize is one of the most important cereals in the world. This crop is a regular host of toxigenic fungi infecting the ears, which can cause very high losses in crop yield. In contrary to wheat where F. graminearum is the leading toxigenic species nearly everywhere, the situation is more complex in maize, where at least two leading species exist from Fusarium and Aspergillus, with ...
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Participation in Forum on February 28, 2019
Ram Singh I should start earlier. We have detected (not alone) that the most important toxin regulating agent is resistance, About 80 % of the corn hybrids and wheat cultivars has closely related data between resistance (infection severity) and toxin contamination. The rest are toxin over producers, e. eg they produce even several times toxin more than could be explained from the severity. The oth ...
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Article published the February 28, 2019
1. Introduction The genus Fusarium belongs to the order of the Hypocreales, the class Ascomycetes and phylum Ascomycota. The perfect stages of Fusarium spp. are mainly classified in the genus Gibberella (Liddell, 2003). Fusarium fungi occur worldwide and can cause many plant diseases, such as Fusarium head blight (FHB) on the ears of small grain cereals including wheat. At least 17 Fusarium speci ...
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