Pathovar

{{Short description|Bacterial strains with similar characteristics}} {{redirect|Pathotype|the term as used for fungi|Forma specialis}} {{One source|date=January 2022}} [[File:Bacterial black spot of mango caused by Xanthomonas citri pv. mangiferae indicae (35616210646).jpg|thumb|Bacterial black spot of mango caused by ''Xanthomonas citri'' pv. ''mangiferaeindicae'']] A '''pathovar''' is a bacterial strain or set of strains with the same or similar characteristics, that is differentiated at infrasubspecific level from other strains of the same species or subspecies on the basis of distinctive pathogenicity to one or more plant hosts. [[File:DSC08095 bacterial leaf blight of panax (5833381084).jpg|thumb|Bacterial leaf blight of common panax (''Polyscias guilfoylei'') caused by ''Xanthomonas campestris'' pv. ''hederae'']] Pathovars are named as a ternary or quaternary addition to the species binomial name, for example the bacterium that causes citrus canker ''Xanthomonas axonopodis'', has several pathovars with different host ranges, ''X. axonopodis'' pv. ''citri'' is one of them; the abbreviation 'pv.' means pathovar.

The type strains of pathovars are '''pathotypes''', which are distinguished from the types (holotype, neotype, etc.) of the species to which the pathovar belongs.<ref>{{citation |url=http://www.isppweb.org/about_tppb_naming.asp |title=International Standards for Naming Pathovars of Phytopathogenic Bacteria |author1=J.M. Young |author2=C.T. Bull |author3=S.H. De Boer |author4=G. Firrao |author5=L. Gardan |author6=G.E. Saddler |author7=D.E. Stead |author8=Y. Takikawa |year=2001 |accessdate=8 September 2015}}</ref>

== See also == * Infraspecific names in botany * Phytopathology * Trinomen, infraspecific names in zoology (subspecies only)

== References == {{reflist}}

Category:Biological classification Category:Bacterial plant pathogens and diseases Category:Microbiology Category:Pathovars