About Us
Contact Us
Login to Protein Lounge!

Abscisic Acid Metabolism in Arabidopsis

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


ABA (Abscisic Acid) is a plant hormone that plays important role during many phases of the plant life cycle, including seed development and dormancy, embryo maturation, cell division and elongation, and in plant responses to various environmental stresses such as drought, salinity, cold, pathogen attack and UV radiation. However, despite the name, it does not appear to control Abscission directly; the presence of ABA in Abscising organs reflects its role in promoting senescence and/or stress responses, the processes preceding Abscission. ABA is a sesquiterpenoid (C15H20O4) with one asymmetric, optically active Carbon atom at C-1 f. The naturally occurring form is S-(+)-ABA; the side chain of ABA is by definition 2-cis,-4-trans. Trans, trans-ABA is biologically inactive, but R-(-)-ABA (a possible product of [...]


1.Seed dormancy and ABA metabolism in Arabidopsis and barley: the role of ABA 8'-hydroxylase.
Millar AA, Jacobsen JV, Ross JJ, Helliwell CA, Poole AT, Scofield G, Reid JB, Gubler F.
Plant J. 2006 Mar;45(6):942-54.
2.Signal transduction and growth regulation by abscisic acid
Hattori T, Kagaya Y, Yamamoto-Toyoda A, Kobayashi Y.
Tanpakushitsu Kakusan Koso. 2002 Sep;47(12 Suppl):1670-5.
You can get all the details on this pathway through subscription