At appropriate water pH, increases in H þ and activation of GAD pro- motes H þ -consuming alpha-decarboxylation of glutamate, there- fore, GABA content of GBR increases (Shelp, Bown, & MacLean,
Atappropriate water pH, increases in H þ and activation of GAD pro-motes H þ -consuming alpha-decarboxylation of glutamate, there-fore, GABA content of GBR increases (Shelp, Bown, & MacLean,