Endomembrane Ca2+-AtPases play a significant role in virus-induced adaptation to oxidative stress

Sergey Shabala; Lone Bækgaard; Lana Shabala; Tracey A. Cuin; Lev G. Nemchinov; Michael Broberg Palmgren

doi:10.4161/psb.6.7.15634

Endomembrane Ca²⁺-AtPases play a significant role in virus-induced adaptation to oxidative stress

Sergey Shabala, Lone Bækgaard, Lana Shabala, Tracey A. Cuin, Lev G. Nemchinov, Michael Broberg Palmgren

12 Citationer (Scopus)

Abstract

Although the role of Ca2+ influx channels in oxidative stress signaling and cross-tolerance in plants is well established, little is known about the role of active Ca2+ efflux systems in this process. In our recent paper,17 we reported Potato Virus X (PVX)-induced acquired resistance to oxidative stress in Nicotiana benthamiana and showed the critical role of plasma membrane Ca2+/H+ exchangers in this process. The current study continues this research. Using biochemical and electrophysiological approaches, we reveal that both endomembrane P2A and P2B Ca2+-ATPases play significant roles in adaptive responses to oxidative stress by removing excessive Ca2+ from the cytosol, and that their functional expression is significantly altered in PVX-inoculated plants. These findings highlight the crucial role of Ca2+ efflux systems in acquired tolerance to oxidative stress and open up prospects for practical applications in agriculture, after in-depth comprehension of the fundamental mechanisms involved in common responses to environmental factors at the genomic, cellular and organismal levels.

Originalsprog	Dansk
Tidsskrift	Plant Signalling & Behavior
Vol/bind	6
Udgave nummer	7
Sider (fra-til)	1053-1056
Antal sider	4
ISSN	1559-2316
DOI	https://doi.org/10.4161/psb.6.7.15634
Status	Udgivet - 2011

Adgang til dokumentet

10.4161/psb.6.7.15634

Citationsformater

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title = "Endomembrane Ca2+-AtPases play a significant role in virus-induced adaptation to oxidative stress",

abstract = "Although the role of Ca2+ influx channels in oxidative stress signaling and cross-tolerance in plants is well established, little is known about the role of active Ca2+ efflux systems in this process. In our recent paper,17 we reported Potato Virus X (PVX)-induced acquired resistance to oxidative stress in Nicotiana benthamiana and showed the critical role of plasma membrane Ca2+/H+ exchangers in this process. The current study continues this research. Using biochemical and electrophysiological approaches, we reveal that both endomembrane P2A and P2B Ca2+-ATPases play significant roles in adaptive responses to oxidative stress by removing excessive Ca2+ from the cytosol, and that their functional expression is significantly altered in PVX-inoculated plants. These findings highlight the crucial role of Ca2+ efflux systems in acquired tolerance to oxidative stress and open up prospects for practical applications in agriculture, after in-depth comprehension of the fundamental mechanisms involved in common responses to environmental factors at the genomic, cellular and organismal levels. ",

author = "Sergey Shabala and Lone B{\ae}kgaard and Lana Shabala and Cuin, {Tracey A.} and Nemchinov, {Lev G.} and Palmgren, {Michael Broberg}",

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language = "Dansk",

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T1 - Endomembrane Ca2+-AtPases play a significant role in virus-induced adaptation to oxidative stress

AU - Shabala, Sergey

AU - Bækgaard, Lone

AU - Shabala, Lana

AU - Cuin, Tracey A.

AU - Nemchinov, Lev G.

AU - Palmgren, Michael Broberg

PY - 2011

Y1 - 2011

N2 - Although the role of Ca2+ influx channels in oxidative stress signaling and cross-tolerance in plants is well established, little is known about the role of active Ca2+ efflux systems in this process. In our recent paper,17 we reported Potato Virus X (PVX)-induced acquired resistance to oxidative stress in Nicotiana benthamiana and showed the critical role of plasma membrane Ca2+/H+ exchangers in this process. The current study continues this research. Using biochemical and electrophysiological approaches, we reveal that both endomembrane P2A and P2B Ca2+-ATPases play significant roles in adaptive responses to oxidative stress by removing excessive Ca2+ from the cytosol, and that their functional expression is significantly altered in PVX-inoculated plants. These findings highlight the crucial role of Ca2+ efflux systems in acquired tolerance to oxidative stress and open up prospects for practical applications in agriculture, after in-depth comprehension of the fundamental mechanisms involved in common responses to environmental factors at the genomic, cellular and organismal levels.

AB - Although the role of Ca2+ influx channels in oxidative stress signaling and cross-tolerance in plants is well established, little is known about the role of active Ca2+ efflux systems in this process. In our recent paper,17 we reported Potato Virus X (PVX)-induced acquired resistance to oxidative stress in Nicotiana benthamiana and showed the critical role of plasma membrane Ca2+/H+ exchangers in this process. The current study continues this research. Using biochemical and electrophysiological approaches, we reveal that both endomembrane P2A and P2B Ca2+-ATPases play significant roles in adaptive responses to oxidative stress by removing excessive Ca2+ from the cytosol, and that their functional expression is significantly altered in PVX-inoculated plants. These findings highlight the crucial role of Ca2+ efflux systems in acquired tolerance to oxidative stress and open up prospects for practical applications in agriculture, after in-depth comprehension of the fundamental mechanisms involved in common responses to environmental factors at the genomic, cellular and organismal levels.

U2 - 10.4161/psb.6.7.15634

DO - 10.4161/psb.6.7.15634

M3 - Tidsskriftartikel

SN - 1559-2316

VL - 6

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EP - 1056

JO - Plant Signalling & Behavior

JF - Plant Signalling & Behavior

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ER -