Advancing insights into calcium homeostasis and signaling in plant growth and resilience  

植物生长和抗逆过程中钙稳态和钙信号转导的研究进展

作　　者：Songchong Lu Yan Sun Lichao Ma Sheng Luan Guofeng Yang 卢松冲;孙岩;马利超;栾升;杨国锋

机构地区：[1]College of Life Sciences,Qingdao Agricultural University,Qingdao 266109,China [2]Key Laboratory of National Forestry and Grassland Administration on Grassland Resources and Ecology in the Yellow River Delta,College of Grassland Science,Qingdao Agricultural University,Qingdao 266109,China [3]Department of Plant and Microbial Biology,University of California,Berkeley,CA 94720,USA

出　　处：《Science Bulletin》2025年第2期125-127,共3页科学通报(英文版)

基　　金：supported by the National Natural Science Foundation of China(31701063);the Talents of High-Level Scientific Research Foundation of Qingdao Agricultural University(6631120074and 6651118004);Shandong Forage Research System(SDAIT-23-01);supported by the National Science Foundation(2344945)。

摘　　要：Calcium is a crucial macronutrient and functions as a widespread signal in eukaryotes,ranging from yeast,plants to animals.As crucial second messengers,calcium ions(Ca^(2+))play indispensable roles in plant growth and development,response to external stressors,and signal transduction by modulating downstream cellular responses,including gene expression,metabolic activities,and transport functions[1,2].Unlike other nutrients,the levels of Ca^(2+)in the extracellular space and in certain intracellular stores are typically 10,000 times higher than resting cytoplasmic Ca^(2+)([Ca^(2+)]_(cyt))levels.This substantial gradient poses potential risks of[Ca^(2+)]_(cyt)overload and toxicity,and it can also lead to a rapid and transient increase in[Ca^(2+)]_(cyt),which is a key signaling mechanism for plants to respond to environmental cues.To mitigate the cytotoxicity of Ca^(2+)and continuously maintain the potential to generate specific Ca^(2+)signals,it is essential to keep the resting[Ca^(2+)]_(cyt)at a low level of approximately 100 nmol/L[3].Calcium homeostasis is fundamental for maintaining cellular function and organismal health in plants.

关 键 词：HOMEOSTASIS STORES typically 

分 类 号：Q945[生物学—植物学]