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The Molecular Mechanism of Potassium Absorption, Transport, and Utilization in Rice

文献类型: 外文期刊

作者: Lian, Wenli 1 ; Geng, Anjing 1 ; Wang, Yihan 1 ; Liu, Minghao 1 ; Zhang, Yue 1 ; Wang, Xu 1 ; Chen, Guang 1 ;

作者机构: 1.Guangdong Acad Agr Sci, Inst Qual Stand & Monitoring Technol Agroprod, Guangzhou 510640, Peoples R China

2.Minist Agr & Rural Affairs, Key Lab Testing & Evaluat Agroprod Safety & Qual, Guangzhou 510640, Peoples R China

3.Guangdong Prov Key Lab Qual & Safety Risk Assessme, Guangzhou 510640, Peoples R China

关键词: rice; potassium; absorption and transport; molecular mechanism

期刊名称:INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES ( 影响因子:5.6; 五年影响因子:6.2 )

ISSN: 1661-6596

年卷期: 2023 年 24 卷 23 期

页码:

收录情况: SCI

摘要: Potassium is essential for plant growth and development and stress adaptation. The maintenance of potassium homeostasis involves a series of potassium channels and transporters, which promote the movement of potassium ions (K+) across cell membranes and exhibit complex expression patterns and regulatory mechanisms. Rice is a major food crop in China. The low utilization rate of potassium fertilizer limits the yield and quality of rice. Elucidating the molecular mechanisms of potassium absorption, transport, and utilization is critical in improving potassium utilization efficiency in rice. Although some K+ transporter genes have been identified from rice, research on the regulatory network is still in its infancy. Therefore, this review summarizes the relevant information on K+ channels and transporters in rice, covering the absorption of K+ in the roots, transport to the shoots, the regulation pathways, the relationship between K+ and the salt tolerance of rice, and the synergistic regulation of potassium, nitrogen, and phosphorus signals. The related research on rice potassium nutrition has been comprehensively reviewed, the existing research foundation and the bottleneck problems to be solved in this field have been clarified, and the follow-up key research directions have been pointed out to provide a theoretical framework for the cultivation of potassium-efficient rice.

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