Pseudomonas viridiflava is a gram-negative pseudomonad that is phylogenetically placed within the Pseudomonas syringae species complex. P. viridiflava has a wide host range and causes a variety of symptoms in different plant parts, including stems, leaves, and blossoms. Outside of its role as a pathogen, P. viridiflava also exists as an endophyte, epiphyte, and saprophyte. Increased reports of P. viridiflava causing disease on new hosts in recent years coincide with increased research on its genetic variability, virulence, phylogenetics, and phenotypes. There is high variation in its core genome, virulence factors, and phenotypic characteristics. The main virulence factors of this pathogen include the enzyme pectate lyase and virulence genes encoded within one or two pathogenicity islands. The delineation of P. viridiflava in the P. syringae complex has been investigated using several molecular approaches. P. viridiflava comprises its own species, within the complex. While seemingly an outsider to the complex as a whole due to differences in the core genome and virulence genes, low average nucleotide identity to other of P. syringae complex members, and some phenotypic traits, it remains as part of the complex. Defining phylogenetic, phenotypic, and genomic characteristics of P. viridiflava in comparison to other P. syringae members is important to understanding this pathogen and for the development of disease resistance and management practices.

中文翻译：

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绿色假单胞菌：丁香假单胞菌物种复合体的内部局外人

Pseudomonas viridiflava是一种革兰氏阴性假单胞菌，在系统发育上位于Pseudomonas syringae物种复合体中。磷。 viridiflava的寄主范围很广，会在植物的不同部位引起各种症状，包括茎、叶和花。除了作为病原体的作用之外，P。 绿色植物也作为内生菌、附生菌和腐生菌存在。增加P的报告。 绿色黄花近年来，在新宿主上引起疾病的同时，对其遗传变异性、毒力、系统发育和表型的研究也有所增加。其核心基因组、毒力因子和表型特征存在很大差异。该病原体的主要毒力因子包括果胶酸裂合酶和编码在一个或两个致病岛内的毒力基因。P的划定。 P中的绿色黄花。 已经使用几种分子方法研究了丁香复合物。磷。 绿色黄花包括它自己的物种，在复合体中。虽然由于核心基因组和毒力基因的差异，对整个复合体来说似乎是一个局外人，但与其他P的平均核苷酸同一性较低。 丁香科复合体的成员，以及一些表型特征，它仍然是复合体的一部分。定义P的系统发育、表型和基因组特征。 viridiflava与其他P相比。 syringae成员对于了解这种病原体以及发展抗病性和管理实践非常重要。