フルテキストURL Plant_Cell_Physiol_57_8_1779.pdf img.pdf suppl.pdf
著者 Yin, Ye| Adachi, Yuji| Nakamura, Yoshimasa| Munemasa, Shintaro| Mori, Izumi C.| Murata, Yoshiyuki|
抄録 Methyl jasmonate (MeJA) induces stomatal closure. It has been shown that stomata of many ABA-insensitive mutants are also insensitive to MeJA, and a low amount of ABA is a prerequisite for the MeJA response. However, the molecular mechanisms of the interaction between ABA and MeJA signaling remain to be elucidated. Here we studied the interplay of signaling of the two hormones in guard cells using the quadruple ABA receptor mutant pyr1 pyl1 pyl2 pyl4 and ABA-activated protein kinase mutants ost1-2 and srk2e. In the quadruple mutant, MeJA-induced stomatal closure, H2O2 production, nitric oxide (NO) production, cytosolic alkalization and plasma membrane Ca(2+)-permeable current (ICa) activation were not impaired. At the same time, the inactivation of the inward-rectifying K(+) current was impaired. In contrast to the quadruple mutant, MeJA-induced stomatal closure, H2O2 production, NO production and cytosolic alkalization were impaired in ost1-2 and srk2e as well as in aba2-2, the ABA-deficient mutant. The activation of ICa was also impaired in srk2e. Collectively, these results indicated that OST1 was essential for MeJA-induced stomatal closure, while PYR1, PYL1, PYL2 and PYL4 ABA receptors were not sufficient factors. MeJA did not appear to activate OST1 kinase activity. This implies that OST1 mediates MeJA signaling through an undetectable level of activity or a non-enzymatic action. MeJA induced the expression of an ABA synthesis gene, NCED3, and increased ABA contents only modestly. Taken together with previous reports, this study suggests that MeJA signaling in guard cells is primed by ABA and is not brought about through the pathway mediated by PYR1, PYL1 PYL2 and PYL4.
キーワード ABA ABA receptors Arabidopsis thaliana Guard cells Methyl jasmonate OST1 protein kinase
備考 This is an Accepted Manuscript of an article published by Oxford University Press
発行日 2016-08-01
出版物タイトル Plant and Cell Physiology
57巻
8号
出版者 Japanese Society of Plant Physiologists
開始ページ 1779
終了ページ 1990
ISSN 0032-0781
NCID AA0077511X
資料タイプ 学術雑誌論文
言語 English
OAI-PMH Set 岡山大学
著作権者 https://creativecommons.org/licenses/by-nc-nd/4.0/deed.ja
論文のバージョン author
PubMed ID 27354421
DOI 10.1093/pcp/pcw102
Web of Sience KeyUT 000384717100015
関連URL https://doi.org/10.1093/pcp/pcw102
著者 泉 実| 村田 芳行|
発行日 2017-02-01
出版物タイトル 岡山大学農学部学術報告
106巻
資料タイプ 紀要論文
著者 Abe, N| Hou, D-X| Munemasa, S| Murata, Y| Nakamura, Y|
発行日 2014-11-20
出版物タイトル Cell Death and Disease
5巻
資料タイプ 学術雑誌論文
JaLCDOI 10.18926/AMO/30727
フルテキストURL fulltext.pdf
著者 Zhu, Bei-Wei| Piao, Mei-Lan| Zhang, Yu| Han, Song| An, Qing-Da| Murata, Yoshiyuki| Tada, Mikiro|
抄録 The effects of vitamin C, vitamin E and vitamin B12 on the noise-induced acute change in hepatic glycogen content in rats were investigated. The exposure of rats to 95 dB and 110 dB of noise acutely reduced their hepatic glycogens. Vitamin C (ascorbic acid) and vitamin E (alpha -tocopherol) attenuated the noise-inducedacute reduction in the hepatic glycogen contents. This result suggests that antioxidants could reduce the change via reactive oxygen species. Vitamin B12 (cobalamin) delayed the noiseinduced change, a finding that suggests that vitamin B12 could postpone the acute change via compensating for vitamin B12 deficiency.
キーワード α-tocopherol ascorbic acid cobalamin hepatic glycogen noise
Amo Type Article
発行日 2006-04
出版物タイトル Acta Medica Okayama
60巻
2号
出版者 Okayama University Medical School
開始ページ 107
終了ページ 111
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 English
論文のバージョン publisher
査読 有り
PubMed ID 16680187
Web of Sience KeyUT 000237001900006
著者 桑木 信輔| 大平 猪一朗| 高畑 真澄| 村田 芳行| 多田 幹郎|
発行日 2004-07-01
出版物タイトル 岡山大学農学部センター報告
26巻
資料タイプ 紀要論文
著者 村田 芳行|
発行日 1995-02-01
出版物タイトル 岡山大学農学部学術報告
84巻
1号
資料タイプ 紀要論文
著者 中馬 誠| 荒見 真一郎| 秦 恵| 中川 一郎| 村田 芳行| 多田 幹郎|
発行日 1998-02
出版物タイトル 岡山大学農学部学術報告
87巻
1号
資料タイプ 紀要論文
著者 中馬 誠| 入山 卓也| 村田 芳行| 多田 幹郎|
発行日 2000-02
出版物タイトル 岡山大学農学部学術報告
89巻
1号
資料タイプ 紀要論文