%A Cao,Xiao-Qiang %A Jiang,Zhong-Hao %A Yi,Yan-Yan %A Yang,Yi %A Ke,Li-Ping %A Pei,Zhen-Ming %A Zhu,Shan %D 2017 %J Frontiers in Plant Science %C %F %G English %K biotic stress,abiotic stress,Flg22,Pep1,aequorin-based Ca2+ imaging,Calcium signal %Q %R 10.3389/fpls.2017.00083 %W %L %M %P %7 %8 2017-January-31 %9 Original Research %+ Shan Zhu,College of Life and Environmental Sciences, Hangzhou Normal University,Hangzhou, China,szhu@hznu.edu.cn %# %! stresses and calcium signals %* %< %T Biotic and Abiotic Stresses Activate Different Ca2+ Permeable Channels in Arabidopsis %U https://www.frontiersin.org/articles/10.3389/fpls.2017.00083 %V 8 %0 JOURNAL ARTICLE %@ 1664-462X %X To survive, plants must respond rapidly and effectively to various stress factors, including biotic and abiotic stresses. Salinity stress triggers the increase of cytosolic free Ca2+ concentration ([Ca2+]i) via Ca2+ influx across the plasma membrane, as well as bacterial flg22 and plant endogenous peptide Pep1. However, the interaction between abiotic stress-induced [Ca2+]i increases and biotic stress-induced [Ca2+]i increases is still not clear. Employing an aequorin-based Ca2+ imaging assay, in this work, we investigated the [Ca2+]i changes in response to flg22, Pep1, and NaCl treatments in Arabidopsis thaliana. We observed an additive effect on the [Ca2+]i increase which induced by flg22, Pep1, and NaCl. Our results indicate that biotic and abiotic stresses may activate different Ca2+ permeable channels. Further, calcium signal induced by biotic and abiotic stresses was independent in terms of spatial and temporal patterning.