›› 2019, Vol. 31 ›› Issue (8): 1361-1371.DOI: 10.3969/j.issn.1004-1524.2019.08.18

• Environmental Science • Previous Articles     Next Articles

Variations of cotton rhizosphere microbial community in different growth stages

LIU Shanshan1, WEI Xin1, SHENG Furui1, QIAO Qinghua1,2,*   

  1. 1. College of Biology and Pharmacy, Yulin Normal University, Yulin 537000, China;
    2. Key Laboratory of Cotton Breeding and Cultivation in Huang-Huai-Hai Plain, Ministry of Agriculture and Rural Affairs, Cotton Research Center, Shandong Academy of Agricultural Sciences, Jinan 250100, China
  • Received:2019-03-27 Online:2019-08-25 Published:2019-08-30

Abstract: To understand the cotton rhizosphere bacterial and fungal community structure during different growth stages, 16S and ITS regions of soil DNAs sampled from the rhizosphere and corresponding control soil of upland and island cotton were sequenced and analyzed. The results indicated that species richness of bacteria and fungi in rhizosphere of different growth stages were significantly (P<0.05) lower than that of control soil, and the species richness in rhizosphere were the highest in the budding stage. Evolutionary distance between the microbiome leading to the difference between seedling stage and budding stage was farther than that between budding stage and flowering stage. Cluster analysis showed that dominate phyla of cotton rhizosphere bacterial community were Proteobacteria, Acidobacteria, Firmicutes, Cyanobacteria, Actinobacteria, Planctomycetes, Bacteroidetes and Verrucomicrobia, and dominate phyla of cotton rhizosphere fungal community were Ascomycota, Basidiomycota and Zygomycota. Moreover, the cotton rhizosphere bacterial and fungal genus with higher or lower relative abundance compared with control soil varied in different growth stages, and the quantity of genus with significantly (P<0.05) higher relative abundance was the highest in budding stage.

Key words: cotton, growth stage, rhizosphere, bacteria, fungi

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