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Trichoderma virens XZ11-1 producing siderophores inhibits the infection of Fusarium oxysporum and promotes plant growth in banana plants

文献类型： 外文期刊

作者： Cui, Haiyang 1 ; Cheng, Qifeng 1 ; Jing, Tao 1 ; Chen, Yufeng 1 ; Li, Xiaojuan 1 ; Zhang, Miaoyi 1 ; Qi, Dengfeng 1 ; Feng, Junting 1 ; Vafadar, Farinaz 4 ; Wei, Yongzan 1 ; Li, Kai 1 ; Zhao, Yankun 1 ; Zhou, Dengbo 1 ; Xie, Jianghui 1 ;

作者机构： 1.Hainan Univ, Chinese Acad Trop Agr Sci, Inst Trop Biosci & Biotechnol, Sch Life & Hlth Sci, Haikou 571101, Peoples R China

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

3.Chinese Acad Trop Agr Sci, Natl Key Lab Biol Breeding Trop Crops, Sanya 572024, Peoples R China

4.Isfahan Univ Technol, Coll Agr, Dept Agron & Plant Breeding, Esfahan 8415683111, Iran

关键词： Trichoderma virens; Siderophore; Banana Fusarium wilt disease; Biocontrol; Plant-growth promotion

期刊名称：MICROBIAL CELL FACTORIES （ 影响因子：4.9； 五年影响因子：6.1 ）

ISSN：

年卷期： 2025 年 24 卷 1 期

页码：

收录情况： SCI

摘要： BackgroundBanana Fusarium wilt caused by Fusarium oxysporum f. sp. cubense is a soil-borne fungal disease. Especially, tropical Race 4 (Foc TR4) can infect almost Cavendish subgroup and has a fatal threat to banana industry. Use of antagonistic microbes to manage soil-borne pathogen is viewed as a promising strategy.ResultsStrain XZ11-1 isolated from tropical rainforest has the production ability of high siderophore. By the analysis of physiological and biochemical profiles, construction of phylogenetic tree, and comparative results from the NR database, strain XZ11-1 was identified as Trichoderma virens. A relative content of 79.45% siderophores was produced in the optimized fermentation solution, including hydroxamate and carboxylate-type siderophores. Siderophores were key for inhibiting the growth of Foc TR4 by competing for environmental iron. Similarly, T. virens XZ11-1 also had antagonistic activities against 10 phytopathogenic fungi. Pot experiments demonstrated that T. virens XZ11-1 could colonize in the root system of banana plants. The symbiotic interaction not only improve plant resistance to Foc TR4, but also enhance iron absorption of roots to promote plant growth by secreting siderophores.ConclusionsT. virens XZ11-1 with the high-yield siderophores was isolated and identified. The strain could effectively inhibit the infection of Foc TR4 in banana roots and promote plant growth. It is a promising biocontrol agent for controlling fungal disease.

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