phot1 and phot2 mediate blue light regulation of stomatal opening

Toshinori Kinoshita, Michio Doi, Noriyuki Suetsugu, Takatoshi Kagawa, Masamitsu Wada, Ken Ichiro Shimazaki

研究成果: ジャーナルへの寄稿記事

579 引用 (Scopus)

抄録

The stomatal pores of higher plants allow for gaseous exchange into and out of leaves. Situated in the epidermis, they are surrounded by a pair of guard cells which control their opening in response to many environmental stimuli, including blue light1,2. Opening of the pores is mediated by K+ accumulation in guard cells through a K+ channel and driven by an inside-negative electrical potential3. Blue light causes phosphorylation and activation of the plasma membrane H+-ATPase that creates this potential1,2,4-6. Thus far, no blue light receptor mediating stomatal opening has been identified7, although the carotenoid, zeaxanthin, has been proposed. Arabidopsis mutants deficient in specific blue-light-mediated responses have identified7,9-14 four blue light receptors, cryptochrome 1 (cry1), cryptochrome 2 (cry2), phot1 and phot2. Here we show that in a double mutant of phot1 and phot2 stomata do not respond to blue light although single mutants are phenotypically normal. These results demonstrate that phot1 and phot2 act redundantly as blue light receptors mediating stomatal opening.

元の言語英語
ページ(範囲)656-660
ページ数5
ジャーナルNature
414
発行部数6864
DOI
出版物ステータス出版済み - 12 6 2001

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Light
Cryptochromes
Proton-Translocating ATPases
Carotenoids
Arabidopsis
Epidermis
Phosphorylation
Cell Membrane

All Science Journal Classification (ASJC) codes

  • General

これを引用

Kinoshita, T., Doi, M., Suetsugu, N., Kagawa, T., Wada, M., & Shimazaki, K. I. (2001). phot1 and phot2 mediate blue light regulation of stomatal opening. Nature, 414(6864), 656-660. https://doi.org/10.1038/414656a

phot1 and phot2 mediate blue light regulation of stomatal opening. / Kinoshita, Toshinori; Doi, Michio; Suetsugu, Noriyuki; Kagawa, Takatoshi; Wada, Masamitsu; Shimazaki, Ken Ichiro.

:: Nature, 巻 414, 番号 6864, 06.12.2001, p. 656-660.

研究成果: ジャーナルへの寄稿記事

Kinoshita, T, Doi, M, Suetsugu, N, Kagawa, T, Wada, M & Shimazaki, KI 2001, 'phot1 and phot2 mediate blue light regulation of stomatal opening', Nature, 巻. 414, 番号 6864, pp. 656-660. https://doi.org/10.1038/414656a
Kinoshita T, Doi M, Suetsugu N, Kagawa T, Wada M, Shimazaki KI. phot1 and phot2 mediate blue light regulation of stomatal opening. Nature. 2001 12 6;414(6864):656-660. https://doi.org/10.1038/414656a
Kinoshita, Toshinori ; Doi, Michio ; Suetsugu, Noriyuki ; Kagawa, Takatoshi ; Wada, Masamitsu ; Shimazaki, Ken Ichiro. / phot1 and phot2 mediate blue light regulation of stomatal opening. :: Nature. 2001 ; 巻 414, 番号 6864. pp. 656-660.
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