Over-expression of a single Ca2+-dependent protein kinase confers both cold and salt/drought tolerance on rice plants

Yusuke Saijo, Shingo Hata, Junko Kyozuka, Ko Shimamoto, Katsura Izui

研究成果: Article査読

681 被引用数 (Scopus)

抄録

A rice gene encoding a calcium-dependent protein kinase (CDPK), OsCDPK7, was induced by cold and salt stresses. To elucidate the physiological function of OsCDPK7, we generated transgenic rice plants with altered levels of the protein. The extent of tolerance to cold and salt/drought stresses of these plants correlated well with the level of OsCDPK7 expression. Therefore, OsCDPK7 was shown to be a positive regulator commonly involved in the tolerance to both stresses in rice. Over-expression of OsCDPK7 enhanced induction of some stress-responsive genes in response to salinity/drought, but not to cold. Thus, it was suggested that the downstream pathways leading to the cold and salt/drought tolerance are different from each other. It seems likely that at least two distinct pathways commonly use a single CDPK, maintaining the signalling specificity through unknown post-translational regulation mechanisms. These results demonstrate that simple manipulation of CDPK activity has great potential with regard to plant improvement.

本文言語English
ページ(範囲)319-327
ページ数9
ジャーナルPlant Journal
23
3
DOI
出版ステータスPublished - 2000 8月
外部発表はい

ASJC Scopus subject areas

  • 遺伝学
  • 植物科学
  • 細胞生物学

フィンガープリント

「Over-expression of a single Ca2+-dependent protein kinase confers both cold and salt/drought tolerance on rice plants」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル