Raghavendra, Agepati S. (1981) Energy supply for stomatal opening in epidermal strips of Commelina benghalensis Plant Physiology, 67 (2). pp. 385-387. ISSN 0032-0889
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Official URL: http://www.plantphysiol.org/content/67/2/385.short
Related URL: http://dx.doi.org/10.1104/pp.67.2.385
Abstract
The influence of light or darkness on stomatal opening In epidermal strips of Commelina benghalensis was evaluated In the presence or absence of O2 and/or metabolic inhibitors. Opening was restricted in nitrogen and was promoted by NADH and acids of the tricarboxylic acid cycle (succinate and α-ketoglutarate) in CO2-free air in ght as well as in darkness. The enhancement by light of stomatal opening was prevalent under nitrogen or in the presence of the respiratory Inhibitors (sodim azide and olgomycin). Respiratory inibitors decreased the opening in light or darness under CO2-free air but exhibited no effect under nitrogen, whereas phosphorylation uncouplers were inhibitory in light or darkness under both CO2-free air and nitrgen. The results suggest that oxidative phosphorylation is a basic source of energy for stomatal opening, although photopbosphorylation could be an energy source.
Item Type: | Article |
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Source: | Copyright of this article belongs to American Society of Plant Biologists. |
ID Code: | 40217 |
Deposited On: | 23 May 2011 06:01 |
Last Modified: | 17 May 2016 22:23 |
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