Coordination of auxin and ethylene biosynthesis by the aminotransferase VAS1.
Coordination of auxin and ethylene biosynthesis by the aminotransferase VAS1.
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DOI:
10.1038/nchembio.1178
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发表时间:
2013-04
影响因子:
14.8
通讯作者:
Chory, Joanne
中科院分区:
文献类型:
--
作者:
Zheng, Zuyu;Guo, Yongxia;Novak, Ondrej;Dai, Xinhua;Zhao, Yunde;Ljung, Karin;Noel, Joseph P.;Chory, Joanne
We identify an Arabidopsis pyridoxal-phosphate (PLP)-dependent aminotransferase, VAS1, whose loss-of-function simultaneously increases levels of the phytohormone auxin and the ethylene precursor 1-aminocyclopropane-1-carboxylate (ACC). VAS1 uses the ethylene biosynthetic intermediate Met as an amino donor and the auxin biosynthetic intermediate, indole-3-pyruvic acid (3-IPA) as an amino acceptor to produce L-Trp and 2-oxo-4-methylthiobutyric acid (KMBA). Our data indicate that VAS1 serves key roles in coordinating the levels of these two vital hormones.
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DOI:
10.1073/pnas.1108436108
发表时间:
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影响因子:
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