| Title: | Spatiotemporal biocontrol and rhizosphere microbiome analysis of Fusarium wilt of banana |
| Author(s): | Zhu Z; Wu G; Deng R; Hu X; Tan H; Chen Y; Tian Z; Li J; |
| Address: | "College of Life Sciences, Yangtze University, Jingzhou, China. South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China. Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, China. Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China. Public Laboratory of Sciences, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China. College of Life Sciences, Yangtze University, Jingzhou, China. zhtian@yangtzeu.edu.cn. Guangxi Key Laboratory of Agro-environment and Agric-products safety, College of Agriculture, Guangxi University, Nanning, China. jxli920@gxu.edu.cn" |
| DOI: | 10.1038/s42003-023-04417-w |
| ISSN/ISBN: | 2399-3642 (Electronic) 2399-3642 (Linking) |
| Abstract: | "The soil-borne fungus Fusarium oxysporum f. sp. cubense tropical race 4 (Foc TR4) causes Fusarium wilt of banana (FWB), which devastates banana production worldwide. Biocontrol is considered to be the most efficient approach to reducing FWB. Here we introduce an approach that spatiotemporally applies Piriformospore indica and Streptomyces morookaensis strains according to their respective strength to increase biocontrol efficacy of FWB. P. indica successfully colonizes banana roots, promotes lateral root formation, inhibits Foc TR4 growth inside the banana plants and reduces FWB. S. morookaensis strain Sm4-1986 secretes different secondary compounds, of which xerucitrinin A (XcA) and 6-pentyl-alpha-pyrone (6-PP) show the strongest anti-Foc TR4 activity. XcA chelates iron, an essential nutrient in pathogen-plant interaction that determines the output of FWB. 6-PP, a volatile organic compound, inhibits Foc TR4 germination and promotes banana growth. Biocontrol trials in the field demonstrated that application of S. morookaensis lead to improvement of soil properties and increase of rhizosphere-associated microbes that are beneficial to banana growth, which significantly reduces disease incidence of FWB. Our study suggests that optimal utilization of the two biocontrol strains increases efficacy of biocontrol and that regulating iron accessibility in the rhizosphere is a promising strategy to control FWB" |
| Keywords: | *Musa *Fusarium/physiology Rhizosphere Plant Diseases/prevention & control/microbiology; |
| Notes: | "MedlineZhu, Zhiyan Wu, Guiyun Deng, Rufang Hu, Xiaoying Tan, Haibo Chen, Yaping Tian, Zhihong Li, Jianxiong eng Research Support, Non-U.S. Gov't England 2023/01/12 Commun Biol. 2023 Jan 11; 6(1):27. doi: 10.1038/s42003-023-04417-w" |
