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Table 1 Effects of glucose on the activity of N metabolic enzymes in pakchoi

From: Effects of glucose on the uptake and metabolism of glycine in pakchoi (Brassica chinensis L.) exposed to various nitrogen sources

Glucose concentration (μM) GPT (μmol · g-1 · 30 min) GOT (μmol · g-1 · 30 min) GS (A · mg-1 protein · h-1)
shoot root shoot root shoot root
0 3.8 ± 0.4a 7.8 ± 1.5a 9.8 ± 0.2ab 12.5 ± 0.2a 19.1 ± 0.7a 23.5 ± 0.6a
4.5 5.7 ± 1.3a 5.7 ± 0.8ab 10.3 ± 0.1a 11.9 ± 0.5a 19.9 ± 0.2a 24.5 ± 2.9a
500 5.9 ± 0.6a 3.9 ± 0.5b 9.6 ± 0.2b 11.2 ± 0.3a 21.3 ± 1.8a 23.4 ± 0.9a
0 4.5 ± 0.9a 5.2 ± 2.7a 12.1 ± 0.2a 13.8 ± 0.4a 19.2 ± 0.4b 24.7 ± 1.0a
25 5.1 ± 0.5a 6.3 ± 1.8a 10.5 ± 0.2b 13.2 ± 0.3a 23.0 ± 0.8a 24.0 ± 0.9a
500 5.9 ± 1.2a 7.2 ± 0.8a 10.2 ± 0.1b 13.1 ± 0.1a 20.7 ± 0.5b 20.5 ± 0.5b
  1. Values represent the mean ± SE (n = 3). Different letters in each column indicate significant differences between treatments at p < 0.05. The first three rows represent the enzymes under conditions where glycine was supplied as a single N source, and the last three rows represent the enzymes under conditions where glycine was supplied in a mixed N source