Plant endophytes, important microbial resources that can produce novel biomolecules and various enzymes through metabolism, have broad application prospects in such fields as agriculture, plant protection, and pharmaceutical industries. It is currently an important way to understand the relationships between endophytes and medicinal plants, for the improvement of both medicinal plants’ growth and quality. Thanks to their rich diversity, plant endophytes play a variety of important roles in host plants’ growth, such as nitrogen fixation, phosphorus solubilization, siderophore production, plant hormone IAA (indole-3-acetic acid) secretion, ACC (1-aminocyclopropane-1-carboxylate) deaminase production, stress resistance enhancement, and secondary metabolites production. Through a review of relevant literature, this paper focused on the relationship between endophytes and medicinal plants, mainly exploring the growth-promoting mechanism of endophytes of medicinal plants in host plants and envisioning the application of new techniques in the study of plant endophytes. This paper is expected to effectively elucidate the growth-promoting effect of endophytes on medicinal plants by adopting molecular means and to provide theoretical references for their applications in related fields.
HUANG Xuezhen, ZHAO Longfei. Mechanism of endophytes of medicinal plants in promoting the growth of host plants[J]. Microbiology China, 2023, 50(4): 1653-1665
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