Roles of RCN1, regulatory a subunit of protein phosphatase 2a, in methyl jasmonate signaling and signal crosstalk between methyl jasmonate and abscisic acid

Naoki Saito; Shintaro Munemasa; Yoshimasa Nakamura; Yasuaki Shimoishi; Izumi C. Mori; Yoshiyuki Murata

doi:10.1093/pcp/pcn106

Roles of RCN1, regulatory a subunit of protein phosphatase 2a, in methyl jasmonate signaling and signal crosstalk between methyl jasmonate and abscisic acid

Naoki Saito, Shintaro Munemasa, Yoshimasa Nakamura, Yasuaki Shimoishi, Izumi C. Mori, Yoshiyuki Murata

Research output: Contribution to journal › Article › peer-review

67 Citations (Scopus)

Abstract

Methyl jasmonate (MeJA) as well as abscisic acid (ABA) induces stomatal closure with their signal crosstalk. We investigated the function of a regulatory A subunit of protein phosphatase 2A, RCN1, in MeJA signaling. Both MeJA and ABA failed to induce stomatal closure in Arabidopsis rcn1 knockout mutants unlike in wild-type plants. Neither MeJA nor ABA induced reactive oxygen species (ROS) production and suppressed inward-rectifying potassium channel activities in rcn1 mutants but not in wild-type plants. These results suggest that RCN1 functions upstream of ROS production and downstream of the branch point of MeJA signaling and ABA signaling in Arabidopsis guard cells.

Original language	English
Pages (from-to)	1396-1401
Number of pages	6
Journal	Plant and Cell Physiology
Volume	49
Issue number	9
DOIs	https://doi.org/10.1093/pcp/pcn106
Publication status	Published - Sep 2008

Keywords

Abscisic acid
Arabidopsis thaliana
Guard cells
K channel
Methyl jasmonate
Reactive oxygen species

ASJC Scopus subject areas

Physiology
Plant Science
Cell Biology

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10.1093/pcp/pcn106

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Roles of RCN1, regulatory a subunit of protein phosphatase 2a, in methyl jasmonate signaling and signal crosstalk between methyl jasmonate and abscisic acid. / Saito, Naoki; Munemasa, Shintaro ; Nakamura, Yoshimasa; Shimoishi, Yasuaki; Mori, Izumi C.; Murata, Yoshiyuki.

In: Plant and Cell Physiology, Vol. 49, No. 9, 09.2008, p. 1396-1401.

Research output: Contribution to journal › Article › peer-review

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abstract = "Methyl jasmonate (MeJA) as well as abscisic acid (ABA) induces stomatal closure with their signal crosstalk. We investigated the function of a regulatory A subunit of protein phosphatase 2A, RCN1, in MeJA signaling. Both MeJA and ABA failed to induce stomatal closure in Arabidopsis rcn1 knockout mutants unlike in wild-type plants. Neither MeJA nor ABA induced reactive oxygen species (ROS) production and suppressed inward-rectifying potassium channel activities in rcn1 mutants but not in wild-type plants. These results suggest that RCN1 functions upstream of ROS production and downstream of the branch point of MeJA signaling and ABA signaling in Arabidopsis guard cells.",

keywords = "Abscisic acid, Arabidopsis thaliana, Guard cells, K channel, Methyl jasmonate, Reactive oxygen species",

author = "Naoki Saito and Shintaro Munemasa and Yoshimasa Nakamura and Yasuaki Shimoishi and Mori, {Izumi C.} and Yoshiyuki Murata",

note = "Funding Information: This research was supported in part by The Asahi Glass Foundation, NOVARTIS Foundation (Japan) for the Promotion of Science, and Grant-in-Aid for Young Scientists and Grants for Scientific Research on Priority Areas from the Ministry of Education, Culture, Sports, Science and Technology of Japan.",

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AU - Munemasa, Shintaro

AU - Nakamura, Yoshimasa

AU - Shimoishi, Yasuaki

AU - Mori, Izumi C.

AU - Murata, Yoshiyuki

N1 - Funding Information: This research was supported in part by The Asahi Glass Foundation, NOVARTIS Foundation (Japan) for the Promotion of Science, and Grant-in-Aid for Young Scientists and Grants for Scientific Research on Priority Areas from the Ministry of Education, Culture, Sports, Science and Technology of Japan.

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AB - Methyl jasmonate (MeJA) as well as abscisic acid (ABA) induces stomatal closure with their signal crosstalk. We investigated the function of a regulatory A subunit of protein phosphatase 2A, RCN1, in MeJA signaling. Both MeJA and ABA failed to induce stomatal closure in Arabidopsis rcn1 knockout mutants unlike in wild-type plants. Neither MeJA nor ABA induced reactive oxygen species (ROS) production and suppressed inward-rectifying potassium channel activities in rcn1 mutants but not in wild-type plants. These results suggest that RCN1 functions upstream of ROS production and downstream of the branch point of MeJA signaling and ABA signaling in Arabidopsis guard cells.

KW - Abscisic acid

KW - Arabidopsis thaliana

KW - Guard cells

KW - K channel

KW - Methyl jasmonate

KW - Reactive oxygen species

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Roles of RCN1, regulatory a subunit of protein phosphatase 2a, in methyl jasmonate signaling and signal crosstalk between methyl jasmonate and abscisic acid

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