Nitrogen uptake and metabolism of Populus simonii in response to PEG-induced drought stress
Keywords: NiR، نیتریت ردوکتاز; PEG, polyethylene glycol; AMTs, ammonium transporters; NRTs, nitrate transporters; NR, nitrate reductase; NiR, nitrite reductase; GS, glutamine synthetase; GOGAT, glutamate synthetaseN uptake; N metabolism; AMTs and NRTs; Populus simonii; drought stress