Three Possible Mechanisms for Stomatal Opening in Response to Light
نویسندگان
چکیده
منابع مشابه
Evidence for Two Photoreactions and Possible Involvement of Phytochrome in Light-dependent Stomatal Opening.
Leaves of the xantha mutant of Helianthus annuus have a higher rate of transpiration and a lower diffusive resistance in the light than in the dark. Stomates of this nonphotosynthetic mutant open in the light and close in the dark.Comparative studies of tobacco, xantha mutant, and wild-type sunflower stomatal opening over a range of light intensities in isolated portions of the spectrum reveal ...
متن کاملProtein phosphatase 1 positively regulates stomatal opening in response to blue light in Vicia faba.
Phototropins, plant blue light receptors, mediate stomatal opening through the activation of the plasma membrane H(+)-ATPase by unknown mechanisms. Here we report that type 1 protein phosphatase (PP1) positively regulates the blue light signaling between phototropins and the H(+)-ATPase in guard cells of Vicia faba. We cloned the four catalytic subunits of PP1 (PP1c) from guard cells and determ...
متن کاملPhospholipase A2b mediates light-induced stomatal opening in Arabidopsis
Phospholipase A2 (PLA2) catalyses the hydrolysis of phospholipids into lysophospholipids and free fatty acids. Physiological studies have indicated that PLA2 is involved in stomatal movement. However, genetic evidence of a role of PLA2 in guard cell signalling has not yet been reported. To identify PLA2 gene(s) that is (are) involved in light-induced stomatal opening, stomatal movement was exam...
متن کاملThe role of ion channels in light-dependent stomatal opening.
Stomatal opening represents a major determinant of plant productivity and stress management. Because plants lose water essentially through open stomata, volume control of the pore-forming guard cells represents a key step in the regulation of plant water status. These sensory cells are able to integrate various signals such as light, auxin, abscisic acid, and CO(2). Following signal perception,...
متن کاملPhospholipase A2β mediates light-induced stomatal opening in Arabidopsis
Phospholipase A(2) (PLA(2)) catalyses the hydrolysis of phospholipids into lysophospholipids and free fatty acids. Physiological studies have indicated that PLA(2) is involved in stomatal movement. However, genetic evidence of a role of PLA(2) in guard cell signalling has not yet been reported. To identify PLA(2) gene(s) that is (are) involved in light-induced stomatal opening, stomatal movemen...
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ژورنال
عنوان ژورنال: The Korean Journal of Ecology
سال: 2005
ISSN: 1225-0317
DOI: 10.5141/jefb.2005.28.2.105