Biotic and Abiotic Stresses Activate Different Ca2+ Permeable Channels in Arabidopsis.


Journal Article

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.

Full Text

Duke Authors

Cited Authors

  • Cao, X-Q; Jiang, Z-H; Yi, Y-Y; Yang, Y; Ke, L-P; Pei, Z-M; Zhu, S

Published Date

  • January 31, 2017

Published In

Volume / Issue

  • 8 /

Start / End Page

  • 83 -

PubMed ID

  • 28197161

Pubmed Central ID

  • 28197161

Electronic International Standard Serial Number (EISSN)

  • 1664-462X

International Standard Serial Number (ISSN)

  • 1664-462X

Digital Object Identifier (DOI)

  • 10.3389/fpls.2017.00083


  • eng