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ID 34168
フルテキストURL
著者
Katsuhara, Maki Research Institute for Bioresources, Okayama University
Hanba, Yuko T. Center for Bioresource Field Science, Kyoto Institute of Technology
抄録

We identified barley aquaporins and demonstrated that one, HvPIP2;1, transports water and CO2. Regarding water homeostasis in plants, regulations of aquaporin expression were observed in many plants under several environmental stresses. Under salt stress, a number of plasma membrane-type aquaporins were down-regulated, which can prevent continuous dehydration resulting in cell death. The leaves of transgenic rice plants that expressed the largest amount of HvPIP2;1 showed a 40% increase in internal CO2 conductance compared with leaves of wild-type rice plants. The rate of CO2 assimilation also increased in the transgenic plants. The goal of our plant aquaporin research is to determine the key aquaporin species responsible for water and CO2 transport, and to improve plant water relations, stress tolerance, CO2 uptake or assimilation, and plant productivity via molecular breeding of aquaporins.

キーワード
barley
CO2
plant aquaporins
salt stress
water transport
備考
Published with permission from the copyright holder.
This is a author's copy,as published in Pflugers Archiv-European Journal of Physiology , 2008 Vol.456 Issue.4 pp.687-691
Publisher URL: http://dx.doi.org/10.1007/s00424-007-0434-9
Direct access to Thomson Web of Science record
Copyright © 2008 by Springer Berlin / Heidelberg
発行日
2008-06-26
出版物タイトル
Pflugers Archiv-European Journal of Physiology
456巻
4号
開始ページ
687
終了ページ
691
資料タイプ
学術雑誌論文
言語
English
査読
有り
DOI
Web of Sience KeyUT
Submission Path
physiology/1