文献类型： 外文期刊
作者： Wang, Jingxin 1 ; Wei, Zhimin 1 ; Zhao, Yu 1 ; Xia, Xueyan 1 ; Cui, Jihan 1 ; Li, Shunguo 1 ;
作者机构： 1.Hebei Acad Agr & Forestry Sci, Minist Agr & Rural Affairs, Key Lab Genet Improvement & Utilizat Featured Coar, Key Lab Minor Cereal Crops Hebei Prov,Inst Millet, Shijiazhuang 050035, Peoples R China
关键词： Phosphorus-use efficiency (PUE); Pi redistribution; release from organic phosphorus (Po); Pi-saving metabolic routes
期刊名称：SOIL SCIENCE AND PLANT NUTRITION （ 影响因子：1.8； 五年影响因子：2.3 ）
ISSN： 0038-0768
年卷期： 2025 年 71 卷 1 期
页码：
收录情况： SCI
摘要： Phosphorus (P) is an essential macronutrient for plant growth and development, but P deficiency is a key limiting factor for crops growth and yield. To cope with P deficiency, plants have evolved many adaptive strategies. In this review, we focused on the mechanism of improving P-use efficiency (PUE). We discussed the main adaptive strategies in plant cell: Pi redistribution between cell compartments, Pi release from organic phosphorus (Po), and Pi-saving metabolic routes. Pi transporters at the tonoplast or membrane system are engaged in the exchange of Pi. The Po pools contain RNA, Pi-monoesters, phytate, and phospholipids. The hydrolases [RNase, APase (Acid phosphatase), Phytase, and Phospholipase] are involved in the Pi release from the Po compounds. Under long-term P deficiency, Pi-independent metabolic processes are triggered to maintain cell activity, such as PPi-dependent alternative metabolic pathway and mitochondrial electron transport. Understanding of the mechanisms of internal PUE would help to develop P utilization efficient plants.
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