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Liao, Qinhong; Zhao, Yu; Wang, Zhenshuo; Yu, Longfeng; Su, Qiqian; Li, Jiaoqian; Yuan, Anran; Wang, Junkui; Tian, Dawei; Lin, Chenglin; Huang, Xiaoya; Li, Wenhua; Sun, Zhiqiang; Wang, Qi; Liu, Jia
The Science of the total environment, 07/2024, Letnik: 932Journal Article
The influence of endophytic microbial community on plant growth and disease resistance is of considerable importance. Prior research indicates that pre-treatment of kiwifruit with the biocontrol yeast Debaryomyces hansenii suppresses gray mold disease induced by Botrytis cinerea. However, the specific underlying mechanisms remain unclear. In this study, Metagenomic sequencing was utilized to analyze the composition of the endophytic microbiome of kiwifruit under three distinct conditions: the healthy state, kiwifruit inoculated with B. cinerea, and kiwifruit treated with D. hansenii prior to inoculation with B. cinerea. Results revealed a dominance of Proteobacteria in all treatment groups, accompanied by a notable increase in the relative abundance of Actinobacteria and Firmicutes. Ascomycota emerged as the major dominant group within the fungal community. Treatment with D. hansenii induced significant alterations in microbial community diversity, specifically enhancing the relative abundance of yeast and exerting an inhibitory effect on B. cinerea. The introduction of D. hansenii also enriched genes associated with energy metabolism and signal transduction, positively influencing the overall structure and function of the microbial community. Our findings highlight the potential of D. hansenii to modulate microbial dynamics, inhibit pathogenic organisms, and positively influence functional attributes of the microbial community. Display omitted •Metagenome characterized response of kiwifruit to B. cinerea and D. hansenii.•The endo-microbiota of kiwifruit are modulated by the application of D. hansenii.•D. hansenii modulates microbial community structure, increasing disease resistance.•D. hansenii modulates microbial function, enhancing resistance in kiwifruit.
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