''Pseudomonas avellanae'' is a

Gram-negative Gram-negative bacteria are bacteria that do not retain the crystal violet stain used in the Gram staining method of bacterial differentiation. They are characterized by their cell envelopes, which are composed of a thin peptidoglycan cell wa ...

plant Plants are predominantly photosynthetic eukaryotes of the kingdom Plantae. Historically, the plant kingdom encompassed all living things that were not animals, and included algae and fungi; however, all current definitions of Plantae excl ...

pathogenic

bacterium Bacteria (; singular: bacterium) are ubiquitous, mostly free-living organisms often consisting of one biological cell. They constitute a large domain of prokaryotic microorganisms. Typically a few micrometres in length, bacteria were am ...

. It is the causal agent of bacterial canker of

hazelnut The hazelnut is the fruit of the hazel tree and therefore includes any of the nuts deriving from species of the genus '' Corylus'', especially the nuts of the species ''Corylus avellana''. They are also known as cobnuts or filberts according ...

(''Corylus avellana''). Based on 16S

rRNA Ribosomal ribonucleic acid (rRNA) is a type of non-coding RNA which is the primary component of ribosomes, essential to all cells. rRNA is a ribozyme which carries out protein synthesis in ribosomes. Ribosomal RNA is transcribed from ribos ...

analysis, ''P. avellanae'' has been placed in the ''P. syringae'' group. This species was once included as a

pathovar 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 o ...

of ''Pseudomonas syringae'', but following DNA-DNA hybridization, it was instated as a separate species. Following ribotypical analysis ''Pseudomonas syringae'' pv. ''theae'' was incorporated into this species.

References

External links

Type strain of ''Pseudomonas avellanae'' at Bac''Dive'' - the Bacterial Diversity Metadatabase
Pseudomonadales Bacterial tree pathogens and diseases Bacteria described in 1996 {{Pseudomonadales-stub