Margineda C.A., Odriozola E., Moreira A.R., Cantón G., Micheloud J.F., Gardey P., Spetter M. & Campero C.M. 2013. Atypical actinobacillosis in bulls in Argentina: granulomatous dermatitis and lymphadenitis. Pesquisa Veterinária Brasileira 33(1):1-4. Instituto Nacional de Tecnología Agropecuaria (INTA), Estación Experimental Agropecuaria Balcarce, Ruta 226 Km 73,5 (7620) Balcarce, Argentina. E-m...

Bacteria of the family Pasteurellaceae are well known to exist in close relationship with mammalian hosts, mostly as constituents of commensal bacterial flora. However, at the same time, some species also have the ability to cause serious diseases. For example, Mannheimia haemolytica and Haemophilus somnus cause pneumonia in cattle (15); Pasteurella multocida is a common animal pathogen but occ...

RTX cytolysins are a family of calcium-dependent, pore-forming, secreted toxins found in a variety of gram-negative bacteria. The prototypical member of this family is the alpha-hemolysin of Escherichia coli. The RTX genetic determinants from seven members of the family Pasteurellaceae, Pasteurella haemolytica, Actinobacillus actinomycetemcomitans, and A. pleuropneumoniae serotypes 1,5,7, and 9...

An unusual occurrence of actinobacillosis was diagnosed in 4 heifers aged 8-15 months and 2 cattle in a dairy herd with 190 Iranian Holstein breed. Anorexia, dysphagia, drooling of normal or foodtinged saliva and presence of warts-like lesions on the dorsal surface of tongue shaft were observed in a 15-month-old heifer without showing protrusion of tongue or presenting woody tongue and no invol...

Petroleum hydrocarbon contamination is a major global prevalent issue in the petroleum sector. This research focuses on evaluating biodegradation of three Gram-negative bacilli, isolated from cowpea planted soil, contaminated with kerosene. The Gram negative bacilli strains have been characterized and identified, using MicrobactTM ID24E systems for the identification of Enterobacteriaceae and c...

Petroleum hydrocarbon contamination is a major global prevalent issue in the petroleum sector. This research focuses on evaluating biodegradation of three Gram-negative bacilli, isolated from cowpea planted soil, contaminated with kerosene. The Gram negative bacilli strains have been characterized and identified, using MicrobactTM ID24E systems for the identification of Enterobacteriaceae and c...

8 REVIEW OF THE LITERATURE 10 1. Periodontitis 10 1.1 General characteristics and classification 10 1.2 Oral biofilms 10 1.3 Actinobacillus actinomycetemcomitans in periodontitis 12 2. Evolutionary lineages of A. actinomycetemcomitans 14 2.1 Population structure 14 2.2 Natural transformation 16 2.3 Intraspecies diversity 17 2.4 Serotypes and serotype-specific antigens 19 2.5 Serotypes vs. genot...