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Table 1 The basic information of enzymes involved in nitrogen metabolism of plants

From: Fate of nitrogen in agriculture and environment: agronomic, eco-physiological and molecular approaches to improve nitrogen use efficiency

Enzyme Abbreviation Encoding genes Function
Nitrate reductase NR 5 Reduce nitrate ion into nitrite ion
Nitrite reductase NiR 30 Further reduce nitrite into ammonium ion
Glutamine synthetase GS 49 Involve in GOGAT pathway
Glutamine oxoglutarate aminotransferase GOGAT 15 Involve in GOGAT pathway
Glutamate dehydrogenase GDH 3 Dehydrogenate α-ketoglutarate
Aspartate aminotransferase AST 13 Catabolise glutamate into aspartate
Asparagine synthetase AS 4 Aspartate is converted into asparagine