Reversal of Blue Light-Stimulated Stomatal Opening by Green Light

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概要

• 論文の詳細を見る

• Blue light-stimulated stomatal opening in detached epidermis of Vicia faba is reversed by green light. A 30 s green light pulse eliminated the transient opening stimulated by an immediately preceding blue light pulse. Opening was restored by a subsequent blue light pulse. An initial green light pulse did not alter the response to a subsequent blue light pulse. Reversal also occurred under continuous illumination, with or without a saturating red light backgound. The magnitude of the green light reversal depended on fluence rate, with full reversal observed at a green light fluence rate twice that of the blue light. Continuous green light given alone stimulated a slight stomatal opening, and had no effect on red light-stimulated opening. An action spectrum for the green light effect showed a maximum at 540 nm and minor peaks at 490 and 580 nm. This spectrum is similar to the action spectrum for blue light-stimulated stomatal opening, red-shifted by about 90 nm. The carotenoid zeaxanthin has been implicated as a photoreceptor for the stomatal blue light response. Blue/green reversibility might be explained by a pair of interconvertible zeaxanthin isomers, one absorbing in the blue and the other in the green, with the green absorbing form being the physiologically active one.

• 日本植物生理学会の論文

著者

• Zeiger Eduardo

  Department Of Organismic Biology Ecology And Evolution University Of California

• Talbott L

  Univ. California Ca Usa

• Zeiger E

  Univ. California Ca Usa

• Talbott Lawrence

  Department Of Organismic Biology Ecology And Evolution University Of California

• FRECHILLA Silvia

  Department of Ecology and Evolutionary Biology, University of California

• Bogomolni Roberto

  Department of Chemistry and Biochemistry, University of California

• Frechilla Silvia

  Department Of Organismic Biology Ecology And Evolution University Of California

• Zeiger Eduardo

  Department Of Ecology And Evolutionary Biology University Of California

• Bogomolni Roberto

  Department Of Chemistry And Biochemistry University Of California

• Talbott Lawrence

  Department of Ecology and Evolutionary Biology, University of California

関連論文

• Use of Potassium and Sucrose by Onion Guard Cells during a Daily Cycle of Osmoregulation
• The Blue Light-Specific Response of Vicia faba Stomata Acclimates to Growth Environment
• Phytochrome and Blue Light-Mediated Stomatal Opening in the Orchid, Paphiopedilum
• Reversal of Blue Light-Stimulated Stomatal Opening by Green Light
• Stomata from npq1, a Zeaxanthin-less Arabidopsis Mutant, Lack a Specific Response to Blue Light
• Reversal by Green Light of Blue Light-stimulated Stomatal Opening in Intact, Attached Leaves of Arabidopsis Operates Only in the Potassium-dependent, Morning Phase of Movement

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