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GABA (A), GAD, GABA-T and SSADH activities (B) and relative expression of GAD, GABA-T, and SSADH (C) in “Nangou” pear fruit during the 0, 3, 6, 9, and 12 days at 20°C after cold storage. Means ± SE of three replicate experiments are shown. Means with different letters are significantly different between the treatments and control (p<0.05).
