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Biocontrol of Colletotrichum fructicola in the Postharvest Banana Fruit Using the Siderophore-Producing Strain BX1

文献类型： 外文期刊

作者： Zhu, Yiming 1 ; Zhou, Erxun 3 ; Shu, Canwei 3 ; Cheng, Baoping 4 ; Liu, Xiaoxue 3 ; Tang, Xiaolin 3 ; Duan, Lingtao 3 ; Ma, Chongjian 2 ; Chen, Jianye 1 ; Lu, Wangjin 1 ; Yang, Yingying 1 ;

作者机构： 1.South China Agr Univ, State Key Lab Conservat & Utilizat Subtrop Agrobio, Guangdong Prov Key Lab Postharvest Sci Fruits & Ve, Engn Res Ctr Southern Hort Prod Preservat,Minist E, Guangzhou 510642, Peoples R China

2.Shaoguan Univ, Guangdong Prov Key Lab Utilizat & Conservat Food &, Sch Biol & Agr, Shaoguan 512005, Peoples R China

3.South China Agr Univ, Coll Plant Protect, Guangdong Prov Key Lab Microbial Signals & Dis Con, Guangzhou 510642, Peoples R China

4.Guangdong Acad Agr Sci, Guangdong Acad Agr Sci, Key Lab Green Prevent & Control Fruits & Vegetable, Minist Agr & Rural Affairs,Guangdong Prov Key Lab, Guangzhou 510640, Peoples R China

关键词： banana anthracnose; biocontrol bacterium; MALDI-TOFIMS; iron-rich condition; biocontrol strategy

期刊名称：JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY （ 影响因子：6.2； 五年影响因子：6.4 ）

ISSN： 0021-8561

年卷期： 2024 年 72 卷 40 期

页码：

收录情况： SCI

摘要： Banana anthracnose, caused by Colletotrichum fructicola, significantly reduced the postharvest fruit quality. Employing biocontrol strategies offers a sustainable approach to enhance agricultural practices. The Burkholderia sp. strain BX1 hinders the growth and appressorium formation of C. fructicola, and its sterile filtrate lowers the anthracnose incidence while preserving the fruit quality. Scanning electron microscopy and genomic analyses confirmed BX1 as Burkholderia pyrrocinia. AntiSMASH analysis identified three siderophores with high similarity, and improved MALDI-TOF IMS confirmed the presence of the siderophore pyochelin. Furthermore, the BX1 filtrate suppressed the expression of virulence genes in C. fructicola and induced the expression of disease resistance genes in banana. However, the presence of 80 mu M iron ions notably mitigated BX1's inhibitory effects and reversed the changes in related gene expression. These results underscore BX1's robust efficacy as a biocontrol agent in managing banana anthracnose, highlight the effective antifungal compounds, and elucidate the influence of environmental factors on biocontrol effectiveness.

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