Are GTGs ABA's biggest fans?
The search for receptors for abscisic acid (ABA), a phytohormone central to the response of plants to biotic and abiotic stress, has been controversial. In this issue, Pandey et al. (2009) report the identification of two membrane proteins from Arabidopsis, GTG1 and GTG2, that bind ABA in vitro and mediate ABA responses in vivo.
Christmann
Alexander
A
Lehrstuhl für Botanik, Technische Universität München, Am Hochanger 4, D-85354 Freising, Germany.
Grill
Erwin
E
D000040:Abscisic Acid / Q000378:metabolism*; D017360:Arabidopsis / Q000378:metabolism*; D029681:Arabidopsis Proteins / Q000378:metabolism*; D018506:Gene Expression Regulation, Plant; D010937:Plant Growth Regulators / Q000378:metabolism*; D043562:Receptors, G-Protein-Coupled / Q000378:metabolism*
D029681:Arabidopsis Proteins; D010937:Plant Growth Regulators; D043562:Receptors, G-Protein-Coupled; D000040:Abscisic Acid; C534590:GTG1 protein, Arabidopsis; C534591:GTG2 protein, Arabidopsis