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Role of bZIP transcription factors in the regulation of plant secondary metabolism

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Abstract

Main conclusion

This study provides an overview of the structure, classification, regulatory mechanisms, and biological functions of the basic (region) leucine zipper transcription factors and their molecular mechanisms in flavonoid, terpenoid, alkaloid, phenolic acid, and lignin biosynthesis.

Basic (region) leucine zippers (bZIPs) are evolutionarily conserved transcription factors (TFs) in eukaryotic organisms. The bZIP TFs are widely distributed in plants and play important roles in plant growth and development, photomorphogenesis, signal transduction, resistance to pathogenic microbes, biotic and abiotic stress, and secondary metabolism. Moreover, the expression of bZIP TFs not only promotes or inhibits the accumulation of secondary metabolites in medicinal plants, but also affects the stress response of plants to the external adverse environment. This paper describes the structure, classification, biological function, and regulatory mechanisms of bZIP TFs. In addition, the molecular mechanism of bZIP TFs regulating the biosynthesis of flavonoids, terpenoids, alkaloids, phenolic acids, and lignin are also elaborated. This review provides a summary for in-depth study of the molecular mechanism of bZIP TFs regulating the synthesis pathway of secondary metabolites and plant molecular breeding, which is of significance for the generation of beneficial secondary metabolites and the improvement of plant varieties.

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Data sharing not applicable to this article as no datasets were generated or analyzed during the current study.

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Funding

This study was financially supported by the National Natural Science Foundation of China (32101563 and 31901344) and Hubei Key Laboratory of Economic Forest Germplasm Improvement and Resources Comprehensive Utilization, Hubei Collaborative Innovation Center for the Characteristic Resources Exploitation of Dabie Mountains Open Fund Project (202019904).

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Contributions

HH and CNW wrote the paper and drew the figures, and JBY and FX helped revise the manuscript. XYY, LNW, YLL, and WZZ help modify the figures. All authors read and approved the final manuscript.

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Correspondence to Jiabao Ye or Feng Xu.

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Communicated by Gerhard Leubner.

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Han, H., Wang, C., Yang, X. et al. Role of bZIP transcription factors in the regulation of plant secondary metabolism. Planta 258, 13 (2023). https://doi.org/10.1007/s00425-023-04174-4

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  • DOI: https://doi.org/10.1007/s00425-023-04174-4

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