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Transcription Factors Involved in Plant Stress and Growth and Development: NAC

Chenjia Zheng,Qin Yang,Xin Wang,Yu Chen,Ruoyu He,Xinmeng Li,Huanhuan Pan,R. Zhuo,Tongbao Qu,Wenmin Qiu

Published 2025 in Agronomy

ABSTRACT

Transcription factors play a key role in plant growth and development. As the largest family of plant-specific transcription factors, the NAC family plays a central role in coordinating plant growth and development and environmental adaptation through its unique molecular design paradigm of “fixed N-terminal structural domain + variable C-terminal regulatory domain”. This review systematically analyses the multidimensional regulatory mechanisms of NAC transcription factors in developmental processes such as cell wall remodelling, root system architecture, leaf senescence and fruit ripening, and reveals their molecular basis for responding to biotic/abiotic stresses through strategies such as hormone signalling integration (ABA, SA, JA, etc.), antioxidant defence activation and metabolic reprogramming. The study found that NAC proteins precisely control plant growth through multiple regulatory mechanisms and have evolved to form both conservative and diverse functional modules, which are of great value for crop improvement. However, research still faces three major challenges: the NAC regulatory network in different crops is still unclear, the coordinated response to multiple stresses has not been solved, and the ecological risks of gene editing have not been assessed. To this end, this paper proposes to build an ‘NAC regulatory map database’ and use synthetic biology and artificial intelligence technology to design smarter, stress-tolerant and high-yielding crops, overcoming the limitations of traditional research.

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