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GrainGenes Reference Report: CPS-84-1189

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Reference	CPS-84-1189
Title	HT-2 and T-2 toxins in barley inoculated with Fusarium sporotrichioides.
Journal	Canadian Journal of Plant Science
Year	2004
Volume	84
Pages	1189-1192
Author	Abramson D McCallum B Tekauz A Smith DM
Abstract	To assess field production of the Fusarium trichothecenes HT-2 toxin, T-2 toxin, and neosolaniol, inoculation trials with four barley cultivars and local isolates of Fusarium sporotrichioides were performed over 2 yr at an experimental farm in southern Manitoba. In the 1998 study, HT-2 toxin was detected in 14 of 16 barley rows at levels between 0.14 and 0.52 microg g SUP -1 , with positive samples averaging 0.26 microg g SUP -1 . T-2 toxin was not detected. Fusarium sporotrichioides infection ranged between 15 and 49% with an average value of 29%. In the 1999 study, HT-2 toxin was detected in 16 of 16 barley rows at levels between 0.67 and 3.72 microg g SUP -1 , averaging 1.92 microg g SUP -1 , and T-2 toxin in 15 of 16 rows between 0.35 and 1.27 microg g SUP -1 , with positive samples averaging 0.70 microg g SUP -1 . Fusarium sporotrichioides infection ranged between 52 and 93% with an average value of 75%. No neosolaniol was detected in any of the samples. The data suggest that in years of moderate F. sporotrichioides infection, HT-2 toxin might to be found in Manitoba barley, and in summers of higher rainfall and fungal infection, T-2 toxin might also be present
Keyword	[ Hide all but 1 of 14 ] agriculture barley cultivars disease resistance infection inoculation mycotoxins plant pathogenic fungi plant pathogens research samples summer toxins trichothecenes

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