Genetically Modified Sugarcane Intercropping Soybean Impact on Rhizosphere Bacterial Communities and Co-occurrence Patterns
文献类型： 外文期刊
作者： Zhang, Jinlian 1 ; Wei, Beilei 2 ; Wen, Rushuang 2 ; Liu, Yue 2 ; Wang, Ziting 2 ;
作者机构： 1.Xiamen Univ, Natl Inst Diagnost & Vaccine Dev Infect Dis, Sch Publ Hlth, Sch Life Sci,State Key Lab Mol Vaccinol & Mol Dia, Xiamen, Peoples R China
2.Guangxi Univ, Coll Agron, Nanning, Peoples R China
3.Guangxi Key Lab Sugarcane Biol, Nanning, Peoples R China
4.Guangxi Acad Agr Sci, Microbiol Res Inst, Nanning, Peoples R China
关键词： intercropping; transgenic crops; rhizosphere microbial environment; interaction; sugarcane
期刊名称：FRONTIERS IN MICROBIOLOGY （ 影响因子：6.064； 五年影响因子：6.843 ）
ISSN：
年卷期： 2021 年 12 卷
页码：
收录情况： SCI
摘要： Strategies involving genes in the dehydration-responsive element binding (DREB) family, which participates in drought stress regulation, and intercropping with legumes are becoming prominent options in promoting sustainable sugarcane cultivation. An increasing number of studies focusing on root interactions in intercropping systems, particularly involving transgenic crops, are being conducted to better understand and thus, harness beneficial soil microbes to enhance plant growth. We designed experiments to investigate the characteristics of two intercropping patterns, soybean with wild-type (WT) sugarcane and soybean with genetically modified (GM) Ea-DREB2B-overexpressing sugarcane, to assess the response of the rhizosphere microbiota to the different cropping patterns. Bacterial diversity in the rhizosphere microbial community differed between the two intercropping pattens. In addition, the biomass of GM sugarcane that intercropped with soybean was significantly improved compared with WT sugarcane, and the aboveground biomass and root biomass of GM soybean intercropping sugarcane increased by 49.15 and 46.03% compared with monoculture. Furthermore, a beneficial rhizosphere environment for the growth of Actinobacteria was established in the systems intercropped with GM sugarcane. Improving the production mode of crops by genetic modification is a key strategy to improving crop yields and provides new opportunities to further investigate the effects of intercropping on plant roots and soil microbiota. Thus, this study provides a basis for selecting suitable sugarcane-soybean intercropping patterns and a theoretical foundation for a sustainable sugarcane production.
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