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

Journal Article (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

  • PMC5281638

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