Fig. 2From: The use of deuterium-labeled gamma-aminobutyric (D6-GABA) to study uptake, translocation, and metabolism of exogenous GABA in plantsThe distribution of endogenous GABA and succinic acid (SA), and exogenous D6-GABA and D4-SA in non-girdled (a) and girdled (b) Mexican lime seedling after incubation in 10 mM D6-GABA for 6 h. the cortex was referred phloem and the inner stem as xylemBack to article page