Characteristics and Research Progress of Legume Nodule Senescence

文献类型： 外文期刊

第一作者： Zhou, Shunxin

作者： Zhou, Shunxin;Zhang, Chanjuan;Huang, Yi;Chen, Haifeng;Yuan, Songli;Zhou, Xinan

作者机构：

关键词： legume-rhizobium symbiosis; nodule senescence; N-fixation activity; cysteine proteases; abiotic factors

期刊名称：PLANTS-BASEL （ 影响因子：3.935； ）

ISSN：

年卷期： 2021 年 10 卷 6 期

页码：

收录情况： SCI

摘要： Delaying the nodule senescence of legume crops can prolong the time of nitrogen fixation and attenuate the lack of fertilizer in the later stage of legume crop cultivation, resulting in improved crop yield and reduced usage of nitrogen fertilizer. However, effective measures to delay the nodule senescence of legume crops in agriculture are relatively lacking. In the present review, we summarized the structural and physiological characteristics of nodule senescence, as well as the corresponding detection methods, providing technical support for the identification of nodule senescence phenotype. We then outlined the key genes currently known to be involved in the regulation of nodule senescence, offering the molecular genetic information for breeding varieties with delayed nodule senescence. In addition, we reviewed various abiotic factors affecting nodule senescence, providing a theoretical basis for the interaction between molecular genetics and abiotic factors in the regulation of nodule senescence. Finally, we briefly prospected research foci of nodule senescence in the future.

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