文献类型: 外文期刊
作者: Liu, Yu;Han, Qin;Zhang, Jiaming;Zhang, Xuehai;Chen, Yuqin;Li, Mingbo;Hao, Yongfang;Hong, Yujie;Tang, Ruizhen;Ferguson, Brett J.;Gresshoff, Peter M.;Kuai, Jie;Zhou, Guangsheng;Li, Xia;Ji, Hongtao
作者机构:
关键词: Crop rotation;Soybean;Rapeseed;Microbiome;Root exudates;Sphingomonadaceae
期刊名称: JOURNAL OF ADVANCED RESEARCH
ISSN: 2090-1232
年卷期: 2025 年 75 卷
页码:
收录情况: SCIE(2025版)
摘要: Introduction: Crop rotation, a crucial agricultural practice that enhances soil health and crop productivity, is widely used in agriculture worldwide. Soybeans play a crucial role in crop rotation owing to their nitrogen-fixing ability, which is facilitated by symbiotic bacteria in their root systems. The soybean-rapeseed rotation is an effective agricultural practice in the Yangtze River Basin of China. However, the mechanism underlying the effectiveness of this system remains unknown. Objectives: The aim of this study was to decipher the mechanisms by which previous soybean cultivation enhances the growth of subsequent rapeseed. Methods: Soybeans with three distinct nodulation genotypes were rotated with rapeseed, and the impact of previous soybean cultivation on subsequent rapeseed growth was evaluated by examining the soybean root secretome and soil rhizosphere microbiome. Results: Soybean-rapeseed rotation significantly enhanced subsequent rapeseed growth and yield, especially when supernodulating soybean plants were used, which released the most nitrogen into the soil rhizosphere. The differences in soybean nodulation capability led to variations in root exudation, which in turn influenced the bacterial communities in the rhizosphere. Notably, the supernodulating soybean plants promoted Sphingomonadaceae family of bacteria growth by secreting oleic acid and cis-4-hydroxy-D-proline, and further attracted them through cis-4-hydroxy-D-proline. Furthermore, the exogenous application of Sphingomonadaceae bacteria, either alone or in combination with rhizobia, significantly enhanced the growth of rapeseed. Conclusion: Our data definitively demonstrated the crucial role of previous soybean cultivation in enhancing the yield of rapeseed, with the assistance of Sphingomonadaceae bacteria and rhizobia. This study elucidates the role of soybean nodulation in rhizosphere bacterial dynamics, highlighting its impor tance in sustainable agricultural practices. 2024 Published by Elsevier B.V. on behalf of Cairo University. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
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