title: Pyogranulomatous pneumonia in goats caused by an undescribed Porphyromonas species, "Porphyromonas katsikii".
abstract: A yet-undescribed bacterial species, tentatively named "Porphyromonas katsikii," was isolated from individuals of a small goat herd with pyogranulomatous pneumonia during an outbreak of acute respiratory disease. The isolated bacteria grew in the form of black-pigmented colonies after 14 days of incubation under anaerobic conditions at 37°C on a tryptic soy blood agar medium. The bacteria were identified as a yet-undescribed Porphyromonas species by determination of the nucleotide sequence of the rrs 16S rRNA gene, and this species was tentatively named Porphyromonas katsikii. PCR amplification with specific primers for this yet-undescribed species revealed the presence of P. katsikii in the lung tissue of all affected animals, while no PCR signals were evidenced from the lungs of healthy goats or from goats with pasteurellosis caused by Mannheimia haemolytica. These data indicate P. katsikii as the causative agent of acute respiratory distress. P. katsikii is phylogenetically related to Porphyromonas somerae and Porphyromonas levii, which cause pathologies in humans and animals, respectively. P. katsikii was not detected by PCR from samples of the gingival pockets or of the faces of healthy goats.
authors.affiliation: Laboratory of Microbiology and Infectious Diseases, School of Veterinary Medicine, Aristotle University of Thessaloniki, University Campus, Thessaloniki, Greece.
authors.forename: George
authors.initials: G
authors.lastname: Filioussis
authors.affiliation: Laboratory of Microbiology and Infectious Diseases, School of Veterinary Medicine, Aristotle University of Thessaloniki, University Campus, Thessaloniki, Greece.
authors.forename: Evanthia
authors.initials: E
authors.lastname: Petridou
authors.affiliation: 3rd Veterinary Hospital of Greek Army, Thessaloniki, Greece.
authors.forename: Emmanouel
authors.initials: E
authors.lastname: Karavanis
authors.affiliation: Institute of Veterinary Bacteriology, University of Bern, Bern, Switzerland joachim.frey@vetsuisse.unibe.ch.
authors.forename: Joachim
authors.initials: J
authors.lastname: Frey
mesh_terms: D000693:Anaerobiosis; D000818:Animals; D001431:Bacteriological Techniques; D016000:Cluster Analysis; D004269:DNA, Bacterial / Q000737:chemistry / Q000235:genetics; D004275:DNA, Ribosomal / Q000737:chemistry / Q000235:genetics; D004196:Disease Outbreaks; D015511:Goat Diseases / Q000453:epidemiology / Q000382:microbiology* / Q000473:pathology*; D006041:Goats; D008168:Lung / Q000382:microbiology / Q000473:pathology; D008969:Molecular Sequence Data; D010802:Phylogeny; D010860:Pigments, Biological / Q000032:analysis; D018410:Pneumonia, Bacterial / Q000453:epidemiology / Q000382:microbiology / Q000473:pathology / Q000662:veterinary*; D017861:Porphyromonas / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification*; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D017422:Sequence Analysis, DNA; D013696:Temperature
chemical_list: D004269:DNA, Bacterial; D004275:DNA, Ribosomal; D010860:Pigments, Biological; D012336:RNA, Ribosomal, 16S