|
type |
Journal Article |
authors |
Zheng Z, Guo Y, Novák O, Dai X, Zhao Y, Ljung K, Noel JP, Chory J. |
title |
Coordination of auxin and ethylene biosynthesis by the aminotransferase VAS1. |
journal |
Nat Chem Biol. |
Activity |
vas1 |
Family |
vas1 |
sel |
selected |
ui |
23377040 |
year |
(2013) |
volume |
9 |
number |
4 |
pages |
244-6 |
| |
abstract |
We identify an Arabidopsis pyridoxal-phosphate-dependent aminotransferase, VAS1, whose loss-of-function simultaneously increases amounts of the phytohormone auxin and the ethylene precursor 1-aminocyclopropane-1-carboxylate. VAS1 uses the ethylene biosynthetic intermediate methionine as an amino donor and the auxin biosynthetic intermediate indole-3-pyruvic acid as an amino acceptor to produce L-tryptophan and 2-oxo-4-methylthiobutyric acid. Our data indicate that VAS1 serves key roles in coordinating the amounts of these two vital hormones. |
last changed |
2014/03/12 13:09 |
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