Acta Agriculturae Zhejiangensis ›› 2021, Vol. 33 ›› Issue (3): 516-525.DOI: 10.3969/j.issn.1004-1524.2021.03.17

• Plant Protection • Previous Articles     Next Articles

Effect of biochar on wheat root-associated microbial community structures

XU Minmin1, HUANG Ying1, LI Bo1, XU Yan2, ZHANG Shuai2, YAO Lingyun2, WANG Zheng2   

  1. 1. Shandong Academy of Environmental Sciences Co., Ltd., Jinan 250100, China
    2. College of Environmental Science and Engineering, Qingdao University, Qingdao 266071, China
  • Received:2020-08-17 Online:2021-04-02 Published:2021-03-25

Abstract:

In order to study the effect of biochar on the wheat root-associated microbiome, greenhouse experiment was conducted and the microbial communities in wheat endosphere, rhizosphere and bulk soil were sequenced by high throughput sequencing technology. The results showed that the microbial community diversity in endosphere was significantly (P<0.05) lower than that in the rhizosphere and bulk soil. In other words, plant roots could filter and screen some microorganisms to colonize and grow in the roots, among which Proteobacteria and Cyanobacteria were the dominant bacteria. Biochar could influence the structure and composition of wheat root-associated microbial community. In the endosphere, the relative abundance of Verrucomicrobiaceae and Luteolibacter was significantly (P<0.05) increased with biochar addition; while in the rhizosphere, biochar addition significantly (P<0.05) increased the relative abundance of Verrucomicrobia, Firmicutes, Gemmatimonadetes, Bacillales, Alicyclobacillaceae, Luteolibacter, Tumebacillus, Gemmatimonas, Kosakonia, Lysobacter, Pseudoxanthomonas, Blastomonas, Mssilia, Archangium and Enterobacter. The microbial communities in the rhizosphere was more sensitive to biochar, and the addition of biochar significantly (P<0.05) changed the biomarkers in the rhizosphere of wheat.

Key words: wheat, biochar, high throughput sequencing, microbial diversity

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