このエントリーをはてなブックマークに追加
ID 49036
フルテキストURL
著者
Shibasaka, Mineo Institute of Plant Science and Resources; Okayama University
Sasano, Sizuka Institute of Plant Science and Resources; Okayama University
Utsugi, Sigeko Institute of Plant Science and Resources; Okayama University
Katsuhara, Maki Institute of Plant Science and Resources; Okayama University
抄録
Water homeostasis is crucial to the growth and survival of plants. Plasma membrane intrinsic proteins (PIPs) have been shown to be primary channels mediating water uptake in plant cells. We characterized a novel PIP2 gene, HvPIP2;8 in barley (Hordeum vulgare). HvPIP2;8 shared 72–76% identity with other HvPIP2s and 74% identity with rice OsPIP2;8. The gene was expressed in all organs including the shoots, roots and pistil at a similar level. When HvPIP2;8 was transiently expressed in onion epidermal cells, it was localized to the plasma membrane. HvPIP2;8 showed transport activity for water in Xenopus oocytes, however its interaction with HvPIP1;2 was not observed. These results suggest that HvPIP2;8 plays a role in water homeostasis although further functional analysis is required in future.
キーワード
aquaporin
plasma membrane intrinsic protein
PIP
HvPIP2;8
water transport
barley
Hordeum vulgare
Xenopus laevis oocytes
発行日
2012-12
出版物タイトル
Plant Signaling & Behavior
7巻
12号
開始ページ
1842
終了ページ
1846
ISSN
1559-2316
資料タイプ
学術雑誌論文
オフィシャル URL
http://dx.doi.org/10.4161/psb.22294
言語
English
著作権者
© 2012 Landes Bioscience
論文のバージョン
author
査読
有り
DOI
PubMed ID