Vol. 11, Special Issue 9 (2022)

Author(s):
Ch. Aruna Kumari and Sameena Begum

Abstract:
Since amino acids and nucleotides are primarily made up of nitrogen (N), it is essential for plant growth, development, and stress responses. The two types of nitrogen that plants can absorb from the soil are nitrate and ammonium. In most crop soils, nitrate is the main type of nitrogen. Nitrate transporters move the absorbed nitrate from the root to other organs. Nitrate sensing stimulates signaling pathways that have an impact on local and systemic molecular, metabolic, physiological, and developmental responses. In the past ten years, significant advancements in our understanding of nitrate and other N nutritional responses have been made thanks to the development of genomics technologies and genetic tools. Furthermore, it has been crucial to find new components using methods that exploit the natural polymorphisms seen in divergent individuals of a single species. Our comprehension of how nitrate signaling affects biological procedures in plants still has some limitations. Therefore, understanding the intricate mechanisms behind nitrate signaling, control and interaction with hormones is the main goal of this review paper.