Abstract Nitrogen is the main component of proteins, nucleic acids and enzymes, and plays an important role in plant growth and development. NH4+ uptake and assimilation consumes low energy compared to NO3- assimilation, NH4+ absorption and utilization efficiency directly affects plant growth and development. Plants can activate complex regulatory networks to optimize NH4+ uptake and utilization due to external fluctuations in NH4+ supply. This review summarized the ways in which ammonium transporter participates in NH4+ perception and the regulatory mechanism at the transcription and protein levels. In addition, it was summarized that the stress responses of AMTs and NH4+ assimilation-related genes under abiotic stresses such as low nitrogen, drought, and salt stress. This paper provides a theoretical basis for high nitrogen use efficiency of plant under abiotic stress.
LI Wen-Xin,ZHANG Chun-Xia,FENG Zi-Mao. Research Progress on Ammonium Transporters' Perception and Stress Response to NH4+ Signals in Plants[J]. 农业生物技术学报, 2020, 28(8): 1511-1520.
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