論文

査読有り
2007年9月

Plants utilize isoprene emission as a thermotolerance mechanism

PLANT AND CELL PHYSIOLOGY
  • Kanako Sasaki
  • ,
  • Takuya Saito
  • ,
  • Mari Laemsae
  • ,
  • Kirsi-Marja Oksman-Caldentey
  • ,
  • Masashi Suzuki
  • ,
  • Kiyoshi Ohyama
  • ,
  • Toshiya Muranaka
  • ,
  • Kazuaki Ohara
  • ,
  • Kazufumi Yazaki

48
9
開始ページ
1254
終了ページ
1262
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1093/pcp/pcm104
出版者・発行元
OXFORD UNIV PRESS

Isoprene is a volatile compound emitted from leaves of many plant species in large quantities, which has an impact on atmospheric chemistry due to its massive global emission rate (5 x 10(14) carbon g year(-1)) and its high reactivity with the OH radical, resulting in an increase in the half-life of methane. Isoprene emission is strongly induced by the increase in isoprene synthase activity in plastids at high temperature in the day time, which is regulated at its gene expression level in leaves, while the physiological meaning of isoprene emission for plants has not been clearly demonstrated. In this study, we have functionally overexpressed Populus alba isoprene synthase in Arabidopsis to observe isoprene emission from transgenic plants. A striking difference was observed when both transgenic and wild-type plants were treated with heat at 60 degrees C for 2.5 h, i.e. transformants revealed clear heat tolerance compared with the wild type. High isoprene emission and a decrease in the leaf surface temperature were observed in transgenic plants under heat stress treatment. In contrast, neither strong light nor drought treatments showed an apparent difference. These data suggest that isoprene emission plays a crucial role in a heat protection mechanism in plants.

リンク情報
DOI
https://doi.org/10.1093/pcp/pcm104
J-GLOBAL
https://jglobal.jst.go.jp/detail?JGLOBAL_ID=200902294697185793
CiNii Articles
http://ci.nii.ac.jp/naid/10027004200
PubMed
https://www.ncbi.nlm.nih.gov/pubmed/17711876
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000250158600002&DestApp=WOS_CPL
ID情報
  • DOI : 10.1093/pcp/pcm104
  • ISSN : 0032-0781
  • J-Global ID : 200902294697185793
  • CiNii Articles ID : 10027004200
  • PubMed ID : 17711876
  • Web of Science ID : WOS:000250158600002

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