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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
biochemistry, genetics and molecular biology
Cyclic mononucleotides modulate potassium and calcium flux responses to H
2
O
2
in Arabidopsis roots
FEBS Letters, Volume 588, No. 6, Year 2014
Notification
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Description
Cyclic mononucleotides are messengers in plant stress responses. Here we show that hydrogen peroxide (H2O2) induces rapid net K+-efflux and Ca2+-influx in Arabidopsis roots. Pre-treatment with either 10 μM cAMP or cGMP for 1 or 24 h does significantly reduce net K+-leakage and Ca2+-influx, and in the case of the K+-fluxes, the cell permeant cyclic mononucleotides are more effective. We also examined the effect of 10 μM of the cell permeant 8-Br-cGMP on the Arabidopsis microsomal proteome and noted a specific increase in proteins with a role in stress responses and ion transport, suggesting that cGMP is sufficient to directly and/or indirectly induce complex adaptive changes to cellular stresses induced by H2O2. © 2014 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved.
Authors & Co-Authors
Ordoñez, Natalia Maria
Saudi Arabia, Thuwal
King Abdullah University of Science and Technology
Marondedze, Claudius
Saudi Arabia, Thuwal
King Abdullah University of Science and Technology
Thomas, Ludivine A.
Saudi Arabia, Thuwal
King Abdullah University of Science and Technology
Pasqualini, Stefania
Italy, Perugia
Università Degli Studi Di Perugia
Shabala, Lana
Australia, Hobart
University of Tasmania
Shabala, Sergey Nikolayevich
Australia, Hobart
University of Tasmania
Gehring, Chris A.
Saudi Arabia, Thuwal
King Abdullah University of Science and Technology
Statistics
Citations: 55
Authors: 7
Affiliations: 3
Identifiers
Doi:
10.1016/j.febslet.2014.01.062
ISSN:
00145793
e-ISSN:
18733468