Pathological evaluation of host-specific AAL-toxins and fumonisin mycotoxins produced by Alternaria and Fusarium species
Pathological evaluation of host-specific AAL-toxins and fumonisin mycotoxins produced by Alternaria and Fusarium species
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DOI：
10.1007/s10327-006-0291-y
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发表时间：
2006-10
影响因子：
1.2
通讯作者：
Daisuke Yamagishi;H. Akamatsu;H. Otani;M. Kodama
中科院分区：
文献类型：
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作者：
Daisuke Yamagishi;H. Akamatsu;H. Otani;M. Kodama
寄主特异性AAL毒素和真菌毒素伏马菌素在结构上是相关的，最初分别从番茄致病型Alternaria alternata和Fusarium verticillioides中分离得到。以前的报告伏马菌素衍生物的生产番茄致病型建议可能参与病原体的致病性。在这里，我们评估了伏马菌素在A中的作用。互作结果表明，高致病性的A. Alternatomato致病型产生AAL毒素作为唯一的毒素，强烈暗示它是致病因子。相关化合物伏马菌素也具有致突变性，并对易感番茄植物具有感染诱导活性。
Host-specific AAL-toxins and mycotoxin fumonisins are structurally related and were originally isolated from the tomato pathotype ofAlternaria alternataand fromFusarium 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 inA. alternata–tomato interactions. The results indicate that highly pathogenic isolates ofA. alternatatomato 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.