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Plant growth stages covered the legacy effect of rotation systems on microbial community structure and function in wheat rhizosphere

文献类型： 外文期刊

作者： Wang, Peixin 1 ; Nie, Jiangwen 1 ; Yang, Lei 1 ; Zhao, Jie 1 ; Wang, Xiquan 1 ; Zhang, Yudan 1 ; Zang, Huadong 1 ; Yang, Yadong 1 ; Zeng, Zhaohai 1 ;

作者机构： 1.China Agr Univ, Minist Agr & Rural Affairs, Coll Agron & Biotechnol, Key Lab Farming Syst, Beijing 100193, Peoples R China

2.Beijing Acad Agr & Forestry Sci, Inst Grassland Flowers & Ecol, Beijing 100097, Peoples R China

3.Chinese Acad Agr Sci, Inst Agr Sources & Reg Planning, Beijing 100081, Peoples R China

4.Jining Acad Agr Sci, Jining 272000, Peoples R China

关键词： Rotation system; Legacy effect; Plant growth stage; Microbial interaction; Function prediction

期刊名称：ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH （ 影响因子：5.8； 五年影响因子：5.4 ）

ISSN： 0944-1344

年卷期： 2023 年 30 卷 21 期

页码：

收录情况： SCI

摘要： Legume-based crop rotation is conducive to improve soil multifunctionality, but how the legacy effect of previous legumes influenced the rhizosphere microbial community of the following crops along with growth stages remains unclear. Here, the wheat rhizosphere microbial community was assessed at the regreening and filling stages with four previous legumes (mungbean, adzuki bean, soybean, and peanut), as well as cereal maize as a control. The composition and structure of both bacterial and fungal communities varied dramatically between two growth stages. The differences in fungal community structure among rotation systems were observed at both the regreening and filling stages, while the difference in bacterial community structure among rotation systems was observed only at the filling stage. The complexity and centrality of the microbial network decreased along with crop growth stages. The species associations were strengthened in legume-based rotation systems than in cereal-based rotation system at the filling stage. The abundance of KEGG orthologs (KOs) associated with carbon, nitrogen, phosphorus, and sulfur metabolism of bacterial community decreased from the regreening stage to the filling stage. However, there was no difference in the abundance of KOs among rotation systems. Together, our results showed that plant growth stages had a stronger impact than the legacy effect of rotation systems in shaping the wheat rhizosphere microbial community, and the differences among rotation systems were more obvious at the late growth stage. Such compositional, structural, and functional changes may provide predictable consequences of crop growth and soil nutrient cycling.

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