Article
CYP707A1 and CYP707A2, which encode abscisic acid 8'-hydroxylases, are indispensable for proper control of seed dormancy and germination in Arabidopsis.
Plant physiology - 1 May 2006
Okamoto Masanori, Kuwahara Ayuko, Seo Mistunori, Kushiro Tetsuo, Asami Tadao, Hirai Nobuhiro, Kamiya Yuji, Koshiba Tomokazu, Nambara Eiji
Abstract excerpt
Endogenous abscisic acid (ABA) levels are regulated by both biosynthesis and catabolism of the hormone. ABA 8'-hydroxylase is considered to be the key catabolic enzyme in many physiological processes. We have previously identified that four members of the Arabidopsis (Arabidopsis thaliana) CYP707A gene family (CYP707A1 to CYP707A4) encode ABA 8'-hydroxylases, and that the cyp707a2 mutants showed an increase in...
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