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Abstract
The effect of some monocarboxylic and dicarboxylic acids on decarboxylation of glutamic acid to GABA in cell suspensions of Chlorella fusca is studied. Lactic, propionic and succinic acids induce a clear decarboxylation of glutamic acid, whereas acetic and malonic acids produce only a little or no amount of GABA. When 0.01 M malonic acid is added together NaF or succinic acid at the same concentration, a decrease in the GABA production is observed. 0.5 M lactic and acetic acids produce a higher amount of GABA than at the 0.01 M concentration, whereas
with propionic and malonic acids the GABA amount is hígher at the lower concentration (0.01 M). These results seem to suggest that glutamic decarboxylation induced by acids is not a nonspecific effect.
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