Microbial inoculation accelerates rice straw decomposition by reshaping structure and function of lignocellulose-degrading microbial consortia in paddy fields
文献类型： 外文期刊
作者： Zhao, Binhan 1 ; Dong, Wenjun 3 ; Chen, Zhiling 4 ; Zhao, Xin 4 ; Cai, Zhanjun 5 ; Feng, Junjian 6 ; Li, Shaojie 1 ; Sun, Xianyun 1 ;
作者机构： 1.Chinese Acad Sci, Inst Microbiol, Beijing 100101, Peoples R China
2.Univ Chinese Acad Sci, Coll Life Sci, Beijing 101408, Peoples R China
3.Heilongjiang Acad Agr Sci, Inst Farming & Cultivat, Harbin 150028, Peoples R China
4.Capital Normal Univ, Coll Life Sci, Beijing 100048, Peoples R China
5.Ordos Mengkangyuan Biotechnol Res Co Ltd, Erdos 017299, Peoples R China
6.Liaoning Junzhe Biotechnol Co Ltd, Shenyang 110122, Peoples R China
关键词： Lignocellulolytic enzymes; Microbial community; Microbial interactions; Pseudarthrobacter; Straw returning
期刊名称：BIORESOURCE TECHNOLOGY （ 影响因子：9.0； 五年影响因子：9.5 ）
ISSN： 0960-8524
年卷期： 2024 年 413 卷
页码：
收录情况： SCI
摘要： Inoculating lignocellulose-degrading microorganisms can accelerate straw decomposition in paddy field; however, the relationship between indigenous and inoculated microorganisms remains unclear. This study explored the effects of microbial inoculation on straw decomposition, microbial community, lignocellulose-degrading consortia, and associated functional genes. After inoculation, straw degradation rate increased by up to 4.9 %, and the rice yield increased by 790 kg/ha. Microbial inoculation restructured soil microbial community, influencing key taxa and interactions within the microbial network. A lignocellulose-degrading consortia consisting 37 genera was established, with a notable increase in the relative abundance of lignocellulose-degrading bacteria following inoculation. Among them, Pseudarthrobacter, with high lignin-degrading enzyme activity, emerged as a key genus after inoculation. Additionally, the abundance of lignin-degrading enzyme genes also increased significantly after inoculation. These findings offer new insights into how microbial inoculation accelerates the in situ decomposition of rice straw by reshaping the structure and function of lignocellulose-degrading consortia within the soil ecosystem.
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