A new gene for auxin synthesis.
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.
Palme
Klaus
K
Institute of Biology II, Faculty of Biology, University of Freiburg, Schaenzlestrasse 1, D-79104 Freiburg, Germany. klaus.palme@biologie.uni-freiburg.de
Nagy
Ferenc
F
D017360:Arabidopsis / Q000201:enzymology* / Q000235:genetics* / Q000502:physiology; D029681:Arabidopsis Proteins / Q000235:genetics / Q000378:metabolism*; D053898:Biosynthetic Pathways; D018506:Gene Expression Regulation, Plant; D007210:Indoleacetic Acids / Q000378:metabolism*; D007211:Indoles; D051279:Tryptophan Transaminase / Q000235:genetics / Q000378:metabolism*
D029681:Arabidopsis Proteins; D007210:Indoleacetic Acids; D007211:Indoles; C008122:indol-3-yl pyruvic acid; D051279:Tryptophan Transaminase