Combined Transcriptomics and Metabolomics of Arabidopsis thaliana Seedlings Exposed to Exogenous GABA Suggest Its Role in Plants Is Predominantly Metabolic
Dear Editor,Y-Aminobutyric acid (GABA) is a non-protein amino acid (AA) metabolized via the GABA shunt;a three-enzyme pathway that includes glutamate decarboxylase (GAD),GABA transaminases (GABA-T),and succinic semialdehyde dehydrogenase (SSADH) (Bown and Shelp,1997;Bouché and Fromm,2004).The majority of work on GABA,to date,has focused on its role as an inhibitory neurotransmitter in mammals.In plants,however,due to its intermediate position between carbon (C) and nitrogen (N),the metabolism of GABA has been suggested as a modulator of C-N balance (Fait et al.,2008).
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A.F.,G.G.,H.F.,and A.R.F.are indebted to the German-Israel Foundation for support grant no.1-933-239.
2014-09-01（万方平台首次上网日期，不代表论文的发表时间）
1065-1068
