Article
The Arabidopsis cytochrome P450 CYP707A encodes ABA 8'-hydroxylases: key enzymes in ABA catabolism.
The EMBO journal - 7 Apr 2004
Kushiro Tetsuo, Okamoto Masanori, Nakabayashi Kazumi, Yamagishi Kazutoshi, Kitamura Sayaka, Asami Tadao, Hirai Nobuhiro, Koshiba Tomokazu, Kamiya Yuji, Nambara Eiji
Abstract excerpt
The hormonal action of abscisic acid (ABA) in plants is controlled by the precise balance between its biosynthesis and catabolism. In plants, ABA 8'-hydroxylation is thought to play a predominant role in ABA catabolism. ABA 8'-hydroxylase was shown to be a cytochrome P450 (P450); however, its corresponding gene had not been identified. Through phylogenetic and DNA microarray analyses during seed imbibition, the...
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