Soil Microbial Diversity and Its Response to Soil Physical and Chemical Properties under Different Banana Varieties
Welcome to Chinese Journal of Tropical Crops,

Chinese Journal of Tropical Crops ›› 2019, Vol. 40 ›› Issue (9): 1858-1864.DOI: 10.3969/j.issn.1000-2561.2019.09.026

• Ecology • Previous Articles     Next Articles

Soil Microbial Diversity and Its Response to Soil Physical and Chemical Properties under Different Banana Varieties

DENG Dahao1,2,DENG Tao1,2,ZHOU You1,WANG Jun1,YANG Laying1,GUO Lijia1,HUANG Junsheng1,2,*()   

  1. 1. Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, Hainan 571101, China
    2. Hainan University, Haikou, Hainan 570228, China
  • Received:2019-01-03 Revised:2019-04-08 Online:2019-09-25 Published:2019-09-10
  • Contact: HUANG Junsheng

Abstract:

In this study, soil microorganisms in different banana growing areas in Guangxi were taken as the research object. Amplicon sequencing technology, Spearman correlation analysis, RDA analysis and other methods were used to determine and analyze the abundance and diversity of soil microorganisms. The effects of physicochemical properties of banana and soil on soil microbial abundance and diversity were discussed. The results showed that the ratio of total OTU of banana soil bacterial samples to that of fungal samples was approximately 2∶1. Fusarium, the genus of the pathogen of banana wilt, accounted for 5.132% to 55.132% of the genus abundance. Spearman correlation analysis showed that there was no significant correlation between Fusarium and soil physicochemical properties. Fusarium had no significant correlation with soil physical and chemical properties. The abundance and diversity of fungi were more easily affected by soil physical and chemical properties and nutrients than bacteria. The single soil physical and chemical properties could not significantly affect the community structure and species composition of soil microorganisms. To a certain extent, soil fungi reflect the degree of disease resistance of banana varieties.

Key words: soil microbes, amplicon sequencing, banana, disease resistance