植物根系化合物调控微生物菌群研究进展

Recent progress on modulation of microbiota by plant root metabolites

植物根系所"组装"的微生物菌群是植物维护根系与土壤生物体稳态、响应胁迫、吸收营养和健康生长的重要体系。植物根部代谢产物介导和调控微生物菌群的组成、结构、分布和功能。但是,目前对根系次生代谢产物的种类和功能尚缺乏充分研究。发现根部次生代谢产物并解析其在调控根际微生物菌群结构中的功能,是解码植物与微生物相互作用的"化学信号"的关键。本文综述了根部化合物在根系微生物菌群组成和调控方面的最新研究进展,并对应用合成生物学理念合成或调控植物根部次生代谢产物,以此调控根系微生物菌群,进而改善植物生长和性状的发展前景进行了探讨。

Microbiota assembled by plant roots is an important system for plants to maintain the homeostasis of root associated biota, respond to environmental stresses, uptake nutrients and facilitate healthy growth. Root metabolites modulate the composition, structure, distribution and function of root microbiota. Discovering root secondary metabolites and elucidating their roles in modulating microbiota is the key to decoding chemical signals involved in plant–microbe interactions. Here, we review recent progress on the roles of plant root metabolites in microbiota assembly and regulation. In addition, the plausibility of manipulating root microbiota for improved growth and other traits of plants using synthetic biology-based synthesis and regulation of root secondary metabolites is discussed.