Root developmental responses to phosphorus nutrition

• 作者: Dong Liu
• 来源期刊: 植物学报（英文版）
• 年，卷（期）: 2021,（6）
• 所属期刊栏目: Invited Expert Review
• 页码范围: 1065-1090
• 页数: 26页
• 语种: 英文

摘要

Phosphorus is an essential macronutrient for plant growth and development. Root system archi-tecture (RSA) affects a plant's ability to obtain phosphate, the major form of phosphorus that plants uptake. In this review, I first consider the relationship between RSA and plant phosphorus-acquisition efficiency, describe how external phos-phorus conditions both induce and impose changes in the RSA of major crops and of the model plant Arabidopsis, and discuss whether shoot phos-phorus status affects RSA and whether there is a universal root developmental response across all plant species. I then summarize the current under-standing of the molecular mechanisms governing root developmental responses to phosphorus defi-ciency. I also explore the possible reasons for the inconsistent results reported by different research groups and comment on the relevance of some studies performed under laboratory conditions to what occurs in natural environments.