Heterologous expression reveals that GABA does not directly inhibit the vacuolar anion channel AtALMT9

Abstract

International audienceGABA, a molecule involved in the regulation of the stomata aperture and drought tolerance, does not modify vacuolar anion fluxes mediated by the anion channel AtALMT9. Dear Editor, GABA (gamma-aminobutyric acid) is a well-known neurotransmitter activating Clchannels in synapses and having an inhibitory effect on neural activity. In plants, GABA was proposed to have different functions, for example, in the regulation of the carbon/nitrogen balance and resistance/tolerance to different biotic and abiotic stresses