Pathological evaluation of host-specific AAL-toxins and fumonisin mycotoxins produced by Alternaria and Fusarium species

详细信息    查看全文

• 作者：Daisuke Yamagishi ; Hajime Akamatsu ; Hiroshi Otani and Motoichiro Kodama
• 关键词：Alternaria alternata tomato pathotype ; Fusarium ; Tomato ; AAL ; toxin ; Fumonisin ; Pathogenicity
• 刊名：Journal of General Plant Pathology
• 出版年：2006
• 出版时间：October, 2006
• 年：2006
• 卷：72
• 期：5
• 页码：323-327
• 全文大小：578 KB

文摘

Host-specific AAL-toxins and mycotoxin fumonisins are structurally related and were originally isolated from the tomato pathotype of Alternaria alternata and from Fusarium verticillioides, respectively. Previous reports on the production of fumonisin derivatives by the tomato pathotype suggested a possible involvement in the pathogenicity of the pathogen. Here, we have evaluated the role of fumonisin in A. alternata–tomato interactions. The results indicate that highly pathogenic isolates of A. alternata tomato pathotype produce AAL-toxin as the sole toxin, strongly implicating it as a pathogenicity factor. The related compound, fumonisin, is also toxigenic and has infection-inducing activity on susceptible tomato plants.