Abstract
This article comments on: Meier S, Bautzmann R, Komarova NY, Ernst V, Suter Grotemeyer M, Schröder K, Haindrich AC, Vega Fernández A, Robert CAM, Ward JM, Rentsch D. 2024. Stress-regulated Arabidopsis GAT2 is a low affinity γ-aminobutyric acid transporter. Journal of Experimental Botany 75, 6295–6311 https://doi.org/10.1093/jxb/erae321 The amino acid gamma-aminobutyric acid (GABA) is a non-proteinogenic metabolite, distinguishable from the amino acids used for protein synthesis. Many living organisms contain GABA, including vertebrate animals, plants, bacteria, and insects. GABA was first discovered in potato tubers in 1949 ( Steward et al., 1949 ) and its role as a plant metabolite has been investigated ever since. A new study by Meier et al. (2024) sheds light on the function of the GABA transporter AtGAT2 in Arabidopsis.
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