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Kynurenine pathway as alternative biosynthetic pathway for fusaric acid in Fusarium oxysporum f.sp. cubense

文献类型： 外文期刊

作者： Zeng, Tao 1 ; Zeng, Hui-Cai 2 ; Fu, Mei-Ying 3 ; Huang, Kai-Kun 4 ; Guo, Jian-Chun 2 ; Hu, Xin-Wen 1 ;

作者机构： 1.Hainan Univ, Inst Trop Agr & Forestry, Haikou 570228, Hainan, Peoples R China

2.Chinese Acad Trop Agr Sci, Inst Trop Biosci & Biotechnol, Haikou 571101, Hainan, Peoples R China

3.Hainan Acad Agr Sci, Inst Plant Protect, Haikou 571100, Hainan, Peoples R China

4.Zhongwei Puchuang Biotechnol Co Ltd, Haikou 570100, Hainan, Peoples R China

关键词： Banana fusarium wilt; Fusaric acid; FUB gene cluster; Kynurenine pathway; Beauverin

期刊名称：AUSTRALASIAN PLANT PATHOLOGY （ 影响因子：1.423； 五年影响因子：1.368 ）

ISSN： 0815-3191

年卷期：

页码：

收录情况： SCI

摘要： Banana fusarium wilt caused by Fusarium. oxysporum f.sp. cubense race 4, has already become one of the main diseases in banana production. Previous research suggests that Foc can secrete two phytotoxins, respectively, fusaric acid and beauvericin, to contribute to its pathogenicity when it infects bananas. A gene cluster FUB consisting of 12 genes has been identified for fusaric acid biosynthesis in several Fusarium spp, including Fusarium. oxysporum f.sp. cubense race 4, F. oxysporum f.sp. lycopersici etc. In the present study, using reverse genetic research methods, we report the evidence for the kynurenine pathway as alternative biosynthetic pathways of fusaric acid in F. oxysporum f.sp. cubense 4. In the meanwhile, our experiments suggests that the beauvericin might not directly contribute to the pathogenicity to banana of F. oxysporum f.sp. cubense 4.

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