绿针假单胞菌的研究进展及农业应用潜力

Recent research advances and application potential in agriculture of Pseudomonas chlororaphis

绿针假单胞菌(Pseudomonas chlororaphis)是目前研究较多的生防菌种之一。19世纪初被Miguela首次分离,将其鉴定为假单胞菌(Pseudomonas),并将机会性病原菌绿脓杆菌作为其模式菌株,而后Peix于2007年重新将其分类为绿针假单胞菌(P.chlororaphis)。目前该菌种已报道有4个亚种,均可产生有颜色的吩嗪类化合物抗生素。该种的菌株多分离自植物根际,对植物抵抗病原菌、线虫等的侵染起到保护作用。本文结合我们分离获得的1株绿针假单胞菌的功能研究、基因组分析及相关文献资料,系统描述了绿针假单胞菌的分类学特征、基因组特点、代谢产物功能及其应用开发前景等,以期为绿针假单胞菌在活性代谢产物发掘、基因功能研究及其农业应用等方面提供借鉴。

Pseudomonas chlororaphis is one group of the most studied biocontrol strains.Since the beginning of the 19th century,it was firstly isolated and identified as Pseudomonas by Miguela,and then it was reclassified as P.chlororaphis by Peix in 2007.At present,four subspecies affiliated to this species have been reported,which can produce colored phenazine antibiotics.Most of the strains were isolated from the rhizosphere of plants,which play a protective role in plants against the infection of pathogens and nematodes.In this paper,based on the genomic and functional analysis of a new obtained Pseudomonas chlororaphis strain by our group and related literatures,we systematically summarized the taxonomic characteristics,genomic characteristics,functions of metabolites,and application prospects of Pseudomonas chlororaphis.This review will provide reference for the discovery of active metabolites,gene function research and agricultural application of Pseudomonas chlororaphis strains in the future.