Molecular Frameworks of Nitrogen Response in Plants: A Review

Jose, Elizabeth and B., Soni K. and Alex, Swapna and P., Shalini Pillai and R., Beena and Stephen, Roy (2023) Molecular Frameworks of Nitrogen Response in Plants: A Review. International Journal of Environment and Climate Change, 13 (12). pp. 380-390. ISSN 2581-8627

[thumbnail of Soni13122023IJECC110832.pdf] Text
Soni13122023IJECC110832.pdf - Published Version

Download (283kB)


Nitrogen is a crucial element for all living organisms especially plants which rely on substantial nitrogen quantities to sustain their growth and productivity. Crop production is greatly influenced by nitrogen consumption efficiency and a significant amount of nitrogen fertilizers is used to increase yield. Approximately half of N fertilizers are not utilized by the crops and are lost to the environment by polluting water sources or by releasing pollutants into the atmosphere. From the rhizosphere, plants absorb nitrogen in the form of nitrate (NO3-), ammonium (NH4+), or organic nitrogen (amino acids and urea). Plants exhibit an array of sensing and adaptive mechanisms to respond to the diverse nitrogen nutrition conditions which include morphological and physiological responses. Two primary systems govern nitrogen uptake in plants: the High-affinity transport system (HATS) and the Low-affinity transport system (LATS). Nitrate transporters fall into two categories, Nitrate Transporter 1 (NRT1) and Nitrate Transporter 2 (NRT2) transporters, Chloride Channel Family (CLC) transporters and Slow Anion Associated Channel Homologs (SLAC/SLAHs). The ammonium transporter family includes Ammonium Transporter 1 (AMT1) and Ammonium Transporter 2 (AMT2) transporters. The uptake of organic nitrogen is facilitated through amino acid and urea uptake and transport systems. In fluctuating environmental conditions, plants employ nitrogen response mechanisms to fine-tune homeostasis. A comprehensive understanding of these regulatory mechanisms holds the potential to yield valuable insights for the development of crops with enhanced nitrogen use efficiency.

Item Type: Article
Subjects: Eprint Open STM Press > Geological Science
Depositing User: Unnamed user with email
Date Deposited: 22 Dec 2023 06:34
Last Modified: 22 Dec 2023 06:34

Actions (login required)

View Item
View Item