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Table 1 Correlation analysis of nitrogen content, nitrogen compound content and nitrogen assimilation related enzyme activities

From: Grazing intensity changed the activities of nitrogen assimilation related enzymes in desert Steppe Plants

Indexes TN SP Pro NN FAA
GOGAT 0.665 0.674 0.656 0.789* 0.652
GS -0.922** -0.937** -0.744* -0.816* -0.891**
GOT 0.996** 0.994** 0.688 0.871** 0.961**
GPT 0.978** 0.975** 0.66 0.856** 0.945**
NR 0.992** 0.984** 0.629 0.893** 0.933**
  1. Note: GOGAT, GS, GOT, GPT and NR represent glutamate synthetase, glutamine synthetase, glutamate oxaloacetate transaminase, glutamate pyruvate transaminase and nitrate reductase, respectively. TN, SP, Pro, NN and FAA represent total nitrogen content, soluble protein, proline, nitrate nitrogen and free amino acid, respectively. “* *” indicates significant correlation at 0.01 level and “*” indicates significant correlation at 0.05 level. “-“indicates significant negative correlation at 0.01 or 0.05 level