The Major Fusarium Species Causing Maize Ear and Kernel Rot and Their Toxigenicity in Chongqing, China.
作者： Danni Zhou , Xiaoming Wang , Guokang Chen , Suli Sun , Yang Yang
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摘要: Fusarium verticillioides, F. proliferatum, and meridionale were identified as the predominant fungi among 116 isolates causing maize ear kernel rot, a destructive disease in Chongqing areas, China. The toxigenic capability genotype determined by molecular amplification toxin assay. results showed that key gene FUM1 was detected 47 verticillioides 19 proliferatum isolates. Among these, mainly produced fumonisin B1, ranging from 3.17 to 1566.44, 97.74 11,100.99 µg/g for each gram of dry hyphal weight, with averages 263.94 3632.88 µg/g, respectively, indicating on average about an order magnitude more fumonisins than did these vitro. Only NIV 16 three asiaticum 11 NIV, varying 17.40 2597.34 µg/g. ZEA DON toxins 4 isolates, production range 8.35–78.57 3.38–33.41 respectively. Three almost no mycotoxins, except one isolate small amount DON. findings provide us insight into risk main pathogenic species guide resistance breeding areas.
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