toxin production by pasteurella granulomatis.pasteurella granulomatis (pg) is a recently identified bacterium associated with proliferative fibrogranulomatous panniculitis (also called "lechiguana") in brazilian cattle. recent attempts to experimentally reproduce this disease have only been partially successful. we hypothesized that pg may produce hemolysin(s) and/or cytotoxin(s) which could contribute to its pathogenicity in susceptible cattle. the objective of this study was to determine the presence and degree of hemolytic and leukotoxi ...19989668517
[severe purulent and necrotizing glossitis in a fallow deer (dama dama) due to an infection with the involvement of mannheimia granulomatis].post mortem examination of a young fallow deer (dama dama) revealed a severe purulent and necrotizing glossitis as well as a multifocal necrotizing and ulcerative rumenitis and typhlitis. the animal was cachectic. mannheimia (m.) sp. was isolated from the tongue lesions and identified as m. granulomatis by maldi-tof ms and 16s rrna sequencing. mycosis and bvdv infection were excluded. few publications are dealing with similar macroscopic findings associated with the isolation of m. granulomatis ...201526281440
pasteurella haemolytica-like bacterium from a progressive granuloma of cattle in brazil.three strains of a pasteurella haemolytica-like bacterium were isolated from lesions of a progressive granuloma of cattle in southern brazil. their characteristics and their differentiation from p. haemolytica varieties and actinobacillus lignieresii are described. the name "pasteurella granulomatis" is proposed for this apparently new taxon.19892754010
molecular study on pasteurella multocida and mannheimia granulomatis from kenyan camels (camelus dromedarius).outbreaks of a haemorrhagic septicaemia (hs) like disease causing large mortalities in camels (camelus dromedarius) in asia and in africa have been reported since 1890. yet the aetiology of this condition remains elusive. this study is the first to apply state of the art molecular methods to shed light on the nasopharyngeal carrier state of pasteurellaceae in camels. the study focused on hs causing pasteurella multocida capsular types b and e. other pasteurellaceae, implicated in common respirat ...201728830429
taxonomic relationships of the [pasteurella] haemolytica complex as evaluated by dna-dna hybridizations and 16s rrna sequencing with proposal of mannheimia haemolytica gen. nov., comb. nov., mannheimia granulomatis comb. nov., mannheimia glucosida sp. nov., mannheimia ruminalis sp. nov. and mannheimia varigena sp. nov.the present paper presents the conclusions of a polyphasic investigation of the taxonomy of the trehalose-negative [pasteurella] haemolytica complex. clusters previously identified by ribotyping and multilocus enzyme electrophoresis (mee) have been evaluated by 16s rrna sequencing and dna-dna hybridizations. results obtained by the different techniques were highly related and indicated that the [p.] haemolytica complex contains distinct genetic and phenotypic groups. at least seven species were ...199910028248
bronchopneumonia associated with mannheimia granulomatis infection in a belgian hare ( lepus europaeus).mannheimia granulomatis was first isolated from pneumonic european hares in the 1980s and has since been reported sporadically in pneumonic swedish roe deer and australian cattle. although the pneumonic lesions caused by m. haemolytica in livestock have been extensively studied and reported, little is published with regard to the pneumonic lesions associated with m. granulomatis infection in any species. we describe the histopathology of purulent bronchopneumonia associated with m. granulomatis ...201728482756
identification of a novel mannheimia granulomatis lineage from lesions in roe deer (capreolus capreolus).eight atypical mannheimia isolates were isolated from lesions in roe deer (capreolus capreolus). traditional classification based on morphologic and physiologic traits showed that they belong to a distinct biogroup (taxon) within genus mannheimia. extensive phenotypic characterization suggested that the isolates should be classified as m. granulomatis, although the presence of distinct traits justified their classification into a separate biogroup within this species. phylogenetic analyses based ...200717699073
lechiguana (focal proliferative fibrogranulomatous panniculitis) in cattle.lechiguana is a disease of cattle characterized by large, hard, subcutaneous swellings that grow rapidly and result in death after 3-11 months in untreated animals. cattle treated with antibiotics recover. the disease has been reported from five states in south and southeastern brazil. histologically, the lesion consists of focal proliferation of fibrous tissue infiltrated by plasma cells, eosinophils, lymphocytes and sometimes neutrophils. the primary lesion is an eosinophilic lymphangitis, whi ...200011305747
further studies of the relationships among strains classified as taxon 15, taxon 18, taxon 20, (pasteurella) granulomatis or the (pasteurella) haemolytica-complex in ruminants using quantitative evaluation of phenotypic data.ninety-three trehalose-negative (p.) haemolytica-like strains of ruminant, porcine and leprine origin were investigated. a quantitative evaluation of phenotypic tests was used and the results obtained were compared with those from 246 previously investigated ruminant strains. cluster analysis of the results obtained displayed most of the taxa as distinct groups which could be related to differences in key characters. although only minor phenotypic differences were observed between the taxa inves ...19979361379
role of pasteurella granulomatis and dermatobia hominis in the etiology of lechiguana in cattle.attempts were made to reproduce bovine lechiguana, a disease associated with dermatobia hominis and pasteurella granulomatis infections. suspensions of pasteurella granulomatis were mixed with each of the following: saponin, oil adjuvant, ground dermatobia hominis, or 5% mucin. each preparation was inoculated into 6 cattle. twelve more cattle, 6 of which received dexamethasone, were inoculated with bacterial suspension alone. abscesses but no lechiguana was produced in all 36 cattle. after absce ...19968784517
the use of polymerase chain reaction to identify pasteurella granulomatis from cattle. 19968784516
bovine subclinical mastitis caused by mannheimia granulomatis.mannheimia granulomatis was isolated for 10 months from the milk of a cow with elevated somatic cell counts. the infection was self-limiting. phenotypic and molecular characteristics of the isolate were determined.201021088192
phenotypic characterisation of australian sheep and cattle isolates of mannheimia haemolytica, mannheimia granulomatis and mannheimia perform a comprehensive phenotypic characterisation of 35 isolates of bacteria previously identified as haemolytic pasteurella-actinobacillus and obtained from cattle and sheep.200212180887
eosinophilic granuloma with splendore-hoeppli material caused by mannheimia granulomatis in a calf.a large subcutaneous mass, formed on the left lower jaw of a 4-month-old japanese black male calf, was partially excised for histological and bacteriological examinations. antibiotic treatment resulted in a good prognosis. bacteria isolated from the excised material were characterized by weak hemolysis and positive reactions for catalase and oxidase, and were 99% identical to mannheimia granulomatis strains. the presence of the leukotoxin gene product was demonstrated by polymerase chain reactio ...201626947171
bovine focal proliferative fibrogranulomatous panniculitis (lechiguana) associated with pasteurella southern brazil, cattle are affected by a disease known locally as lechiguana and characterized by large subcutaneous swellings. eighteen cases were examined clinically; 17 of the cattle had a single swelling, and one had two swellings. in 14 of the 18 cases, the swellings were located over the scapula and adjacent regions. the subcutaneous masses reached maximum dimensions of 45 x 50 cm, with heights above the skin surface of 5-25 cm. growth was rapid, often taking place in 15 to 60 days. hi ...19921632062
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