Abstract:
Objective The aim of this study is to compare the rhizosphere microbial community structure and function of strawberry among difference degrees of anthracnose, which is crucial for guiding farmland management and screening useful strawberry anthracnose antagonistic resource.
Method The strawberry rhizosphere soil among difference degrees of anthracnose in the same field was collected in a greenhouse for studying the rhizosphere bacterial diversity and richness at phylum and genus levels by using Illumina sequencing and PICRUSt2.
Result The results showed that anthracnose decreased rhizosphere bacterial diversity, with the mild degrees of anthracnose decreased 7.2% (ACE) and the middle decreased 11%. The phyla Proteobacteria, Actinobacteria and Bacteroidetes dominated in all strawberry rhizosphere soil. The different degrees of anthracnose changed rhizosphere soil bacterial composition, with an increase of Bacillus. spp and Meiothermus. Spp, while a decreased of Flavobacterium and Burkholderia. The PICRUSt2 analysis showed that the occurrence of anthracnose disease increased cell communication, transport and catabolism, transcription, but decreased lipid metabolism and digestive system.
Conclusion The strawberry anthracnose change rhizosphere bacterial composition, functional traits and decrease diversity. In addition, the strawberry anthracnose also decreases the relative abundance of bacterial taxa and enhances plant nutrient absorption.
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