บทคัดย่องานวิจัย

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Fusarium species pathogenic to barley and their associated mycotoxins.

Salas, B., Steffenson, B.J., Casper, H.H., Tacke, B., Prom, L.K., Fetch, T.G. and Schwarz, P.B.

Plant Disease 83: 667-674.

1999

บทคัดย่อ

Fusarium species pathogenic to barley and their associated mycotoxins.

Epidemics of Fusarium head blight (FHB) occurred on barley in Minnesota, North Dakota and south Dakota from 1993 to 1998. Fusarium graminearum was the primary pathogen causing the FHB epidemics and it comprised from 62 to 64% of all Fusarium species isolated from infected kernels from 1994 to 1996.  Fusarium poae, F.  sporotrichioides and F. avenaceum also were isolated from barley kernels and were likely involved in causing some FHB infection, but to a very limited extent.  Mycotoxin sereens were performed on barley spikes inoculated with the respective species in the greenhouse.  Spikes infected with F.  graminearum contained DON and 15 acetyl DON.  Those infected with F. sporotrichioides contained T-2 toxin, HT-2 toxin and T-2 tetraol.  Some those infected with F. poae contained nivalenol.  Some isolates of F. poae contained nivalenol.  Some isolated of F. poae also produced 15 acetoxyscirpenol and scirpentriol.