Nutrient-hormone relations:Driving root plasticity in plants  

作　　者：Zhongtao Jia Ricardo F.H.Giehl Nicolaus von Wirén 

机构地区：[1]Molecular Plant Nutrition,Department of Physiology&Cell Biology,Leibniz Institute of Plant Genetics and Crop Plant Research(IPK),Corrensstr.3,06466 Stadt Seeland,OT Gatersleben,Germany

出　　处：《Molecular Plant》2022年第1期86-103,共18页分子植物（英文版）

基　　金：Z.J.was supported by a fellowship(No.201406350062)from China Scholarship Council(CSC);This work was supported by the Deutsche For-schungsgemeinschaft with grants to N.v.W.(WI1728/25-1)and R.F.H.G.(HE 8362/1-1).

摘　　要：Optimal plant development requires root uptake of 14 essential mineral elements from the soil.Since the bioavailability of these nutrients underlies large variation in space and time,plants must dynamically adjust their root architecture to optimize nutrient access and acquisition.The information on external nutrient availability and whole-plant demand is translated into cellular signals that often involve phytohormones as intermediates to trigger a systemic or locally restricted developmental response.Timing and extent of such local root responses depend on the overall nutritional status of the plant that is transmitted from shoots to roots in the form of phytohormones or other systemic long-distance signals.The integration of these systemic and local signals then determines cell division or elongation rates in primary and lateral roots,the initiation,emergence,or elongation of lateral roots,as well as the formation of root hairs.Here,we review the cascades of nutrient-related sensing and signaling events that involve hormones and highlight nutrient-hormone relations that coordinate root developmental plasticity in plants.

关 键 词：root development root plasticity nutrient sensing nutrient signaling plant hormones nutrient use efficiency 

分 类 号：Q945[生物学—植物学]