Abstract
MYB transcription factors (TFs), as one of the largest gene families in plants, play important roles in multiple biological processes, such as plant growth and development, cell morphology and pattern building, physiological activity metabolism, primary and secondary metabolic reactions, and responses to environmental stresses. The function of MYB TFs in crops has been widely studied, but few studies have been done on medicinal plants. In this review, we summarized the MYB TFs that play important roles in secondary metabolism and emphasized the possible mechanisms underlying how MYB TFs are regulated at the protein, posttranscriptional, and transcriptional levels, as well as how they regulate the downstream target gene networks related to secondary metabolism in plants, especially in medicinal plants.
Highlights
Plant secondary metabolites include many types of compounds, such as flavonoids, stilbenes, various phenolic acids, and monolignols
We found that the regulation of myeloblastosis viral oncogene homolog (MYB) on the secondary metabolism of medicinal plants is mostly concentrated in the synthesis of flavonoids and organic acids
MYB transcription factors (TFs) are very conserved among angiosperm species, which means that they are evolved from a common ancestral gene
Summary
Plant secondary metabolites include many types of compounds, such as flavonoids (phlobaphenes, isoflavonoids, flavanones, flavones, flavonols, proanthocyanidins, anthocyanins), stilbenes, various phenolic acids, and monolignols The functions of these compounds have been determined and include mechanical strength (cell wall components), signaling molecules, pigments, ultraviolet (UV). V-Myb myeloblastosis viral oncogene homolog (MYB) transcription factors (TFs) represent one of the largest families of a transcription factor in plants. These MYB TFs have important functions in the regulation of the biosynthesis of secondary metabolites in plants. MYB TFs and in the secondary the metabolism potential regulatory of medicinal plants. Mechanisms of MYB TFs in the secondary metabolism of medicinal plants MYB TFs and in the secondary the metabolism potential regulatory of medicinal plants. mechanisms of MYB TFs in the secondary metabolism of medicinal plants
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