植物营养与肥料学报2025，Vol.31Issue(4)：800-809,10.DOI:10.11674/zwyf.2024366
小麦高效吸收利用磷素机制研究进展
Progress on mechanism on the phosphorus-efficient absorption and utilization in wheat(Triticum aestivum L.)
摘要
Abstract
Wheat is a high phosphorus(P)-demanding cereal crop,and its stable and high yield relies heavily on substantial phosphorus fertilizer input.However,the seasonal utilization efficiency of phosphorus fertilizer in Chinese wheat production is only 19％,making the improvement of phosphorus absorption and use efficiency a critical scientific issue in wheat nutrient management research.Based on our previous research on wheat P use efficiency,in this review,we first analyze the reasons for the low P efficiency in soil and summarize five main pathways for uptake and utilizing P in wheat and other crops:root morphological remodeling,organic acid secretion,internal P redistribution and gene expression.Among the P-efficient genes,we emphasize the categories and functions of wheat high affinity P transporter genes(TaPHT1s).Subsequently,we introduce the calculation formulas for P absorption efficiency and utilization efficiencies,explain the main reasons for the slow progress in mapping and cloning P-efficient genes via forward genetics,and summarize the identified Pi-efficient candidate genes via reverse genetics approaches.On the wheat P-efficient molecular regulatory signaling pathway,we describe the functions and mechanisms of several transcription factors including TaPHR1,TaMYB4.Finally,we propose future directions to accelerate the cloning of P-efficient genes in wheat,including developing high-throughput phenotyping platforms for P efficiency;identifying key PHT genes involved in P utilization efficiency among tissues after anthesis;and leveraging wheat genome sequencing data and high-throughput microarrays.关键词
小麦/磷高效/高亲和磷转运蛋白/信号通路Key words
Triticum aestivum L./high phosphorus efficiency/high-affinity phosphorus transporter/signal path引用本文复制引用
康国章,王鹏飞,李艳,王金凤,韩巧霞..小麦高效吸收利用磷素机制研究进展[J].植物营养与肥料学报,2025,31(4):800-809,10.基金项目
神农种业实验室一流课题项目(SN01-2022-01) （SN01-2022-01）
河南省科技攻关项目(232102111104) （232102111104）
河南省研究生教育改革与质量提升工程项目(YJS2024JD18). （YJS2024JD18）
