Nitrogen is a major component of living organisms and an essential nutrient for plant growth.To adapt to changes in nitrogen availability in the soil,plants employ complex signaling pathways to finely regu-late root system architecture to optimize nitrogen uptake efficiency.This review focuses on the receptors involved in perceiving nitrogen signals in plant roots and the specific mechanisms governing root develop-ment.It also elaborates on the interplay between nitrogen signaling pathways,plant hormones,and other molecules that coordinately regulate root growth and development.This review aims to provide valuable in-sight into how plant roots perceive and respond to nitrogen signals.
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