Cell 2008-04-04

A new gene for auxin synthesis.

Klaus Palme, Ferenc Nagy

Index: Cell 133(1) , 31-2, (2008)

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Abstract

There is much interest in understanding the pathways that trigger biosynthesis of the plant hormone auxin. In this issue, Stepanova et al. (2008) and Tao et al. (2008) reveal that a small family of tryptophan aminotransferases catalyze formation of indole-3-pyruvic acid (IPA) from L-tryptophan (L-Trp), the first step in a pathway for auxin biosynthesis.