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Molecular dialogue in legume-rhizobium symbiosis: Signaling mechanisms and genetic insights

文献类型： 外文期刊

作者： Li, Xiaopeng 1 ; Xiao, Ruixue 2 ;

作者机构： 1.Zhongyuan Inst Sci & Technol, Zhengzhou 450000, Henan Province, Peoples R China

2.Chinese Acad Agr Sci, Agr Genom Inst Shenzhen, Shenzhen 518120, Guangdong, Peoples R China

关键词： Legume; Rhizobium; Symbiotic nitrogen fixation; Molecular mechanism; Sustainable agriculture

期刊名称：RHIZOSPHERE （ 影响因子：3.5； 五年影响因子：3.7 ）

ISSN：

年卷期： 2025 年 33 卷

页码：

收录情况： SCI

摘要： The symbiotic relationship between legumes and rhizobium has important potential for sustainable agricultural development, increasing crop yields and reducing nitrogen fertilizer dependence. Recent advancements in molecular biology have unraveled key signaling pathways and genetic elements that govern this symbiosis. Legume roots secrete flavonoids that trigger rhizobia to produce nodulation factors (NFs), initiating a complex signaling cascade leading to nodule formation. These nodules house bacteria that convert atmospheric nitrogen into ammonia, crucial for plant growth. Understanding and engineering these signaling pathways could enhance nitrogen fixation efficiency, reduce fertilizer dependence, and promote eco-friendly farming. This review synthesizes the past 25 years of research, highlighting breakthroughs in symbiotic signaling, transcriptional regulation, and plant immunity modulation during legume-rhizobium symbiosis. It also explores the potential for engineering nitrogen-fixing capabilities in both legume and non-legume plants, offering insights into future agricultural strategies that harness this symbiosis for enhanced sustainability and productivity.

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