ProteinLounge
Citations
About Us
Contact Us
Login to Protein Lounge!

Ion Channels in ABA Mediated Stomatal Regulation

This image is a scaled-down version of the actual pathway image. It does not contain any links to the protein information pages.
 

Description

Plant growth and development are regulated by Internal Signals and by External Environmental Conditions. One important regulator that coordinates growth and development with responses to the environment is the Sesquiterpenoid hormone ABA (Abscisic Acid). ABA plays important roles in many cellular processes including Seed Development, Dormancy, Germination, Vegetative Growth, Leaf Senescence, Stomatal Closure, and Environmental Stress Responses.  ABA is synthesized in almost all cells, but its transport from roots to shoots and the recirculation of ABA in both Xylem and Phloem are important aspects of its physiological role. The most extensively investigated developmental and physiological effects of ABA are those involved in Seed Maturation and Dormancy and in the Regulation of Stomata. These diverse functions of ABA involve complex regulatory [...]

References:

1.Regulated expression of Arabidopsis shaker K+ channel genes involved in K+ uptake and distribution in the plant.
Pilot G, Gaymard F, Mouline K, Cherel I, Sentenac H.
Plant Mol Biol. 2003 Mar;51(5):773-87.
2.Plasma membrane depolarization induced by abscisic acid in Arabidopsis suspension cells involves reduction of proton pumping in addition to anion channel activation, which are both Ca2+ dependent.
Brault M, Amiar Z, Pennarun AM, Monestiez M, Zhang Z, Cornel D, Dellis O, Knight H, Bouteau F, Rona JP.
Plant Physiol. 2004 May;135(1):231-43.
You can get all the details on this pathway through subscription