Actinobacillus


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Actinobacillus

A genus of gram-negative, immotile and nonspore-forming, oval to rod-shaped, often pleomorphic bacteria which occur as parasites or pathogens in mammals (including humans), birds, and reptiles. They are facultatively aerobic, capable of fermenting carbohydrates (without production of gas) and of reducing nitrates. The genomic DNA contains between 40 and 47 mol % guanine plus cytosine. The actinobacillus group shares many biological properties with the genus Pasteurella. See Pasteurella

Actinobacillus (Pasteurella) ureae and A. hominis occur in the respiratory tract of healthy humans and may be involved in the pathogenesis of sinusitis, bronchopneumonia, pleural empyema, and meningitis. Actinobacillus actinomycetemcomitans occurs in the human oral microflora, and together with anaerobic or capnophilic organisms may cause endocarditis and suppurative lesions in the upper alimentary tract. Actinobacilli are susceptible to most antibiotics of the β-lactam family, aminoglycosides, tetracyclines, chloramphenicol, and many other antibacterial chemotherapeutics. See Antibiotic, Medical bacteriology

Actinobacillus

[‚ak·tə·nō·bə′sil·əs]
(microbiology)
A species of gram-negative, oval, spherical, or rod-shaped bacteria that are of uncertain affiliation; coccal and bacillary cells are often interspersed, giving a “Morse code” form; species are pathogens of animals, occasionally of humans.
References in periodicals archive ?
ovis REO 198(R) + | + | + | - - - Actinobacillus seminis - - - - - - - Campylobacter fetus | - - - - - - Escherichia coli - - - - - - - Histophilus somni - - - - - - - Mannheimia haemolytica - - - - - - - Proteus vulgaris - - - - - - - Corynebacterium pseudoTBC | | | | - - - Staphylococcus aureus - - - - - - - Trueperella pyogenes || | - - - - - bacteria anti-Brucella fluorescent conjugate dilutions 1/400 1/500 1/600 Brucilla abortus 544 (S) +++ +++ +++ B.
Actinobacillus actinomycetemcomitans and porphyromonas gingivalis in human periodontal disease: occurrence and treatment.
Metabolic engineering of succinate producing strains such as Actinobacillus succinogenes (5,6), Manheimia succiniproducens (7), Anaerobiospirillum succiniproducens (8), recombinant Escherichia coli (9,10), Corynebacterium glutamicum (11,12,13), Saccharomyces cerevisiae (14,15,16) were carried out leading to commercialization of the fermentation processes using the mutant strains (17,18).
The pathologist's report said correctly the bacteria could only be classified by family as actinobacillus, but the laboratory work needed to culture the organisms and identify the specific species was not possible due to the small size of the sample.Actinobacillus species are mainly pathogenic or disease-causing bacteria of herbivorous animals but in favourable circumstances may affect humans.
However, other pathogens such as Actinobacillus suis, Salmonella cholerasuis or Pasteurella multocida can cause similar macroscopic lung lesions (GOTTSCHALK, 2012) but unfortunately their presence was not considered.
Evaluation of lung scoring system and serological analysis of Actinobacillus pleuropneumoniae infection in pigs.
Detection of Actinobacillus pleuropneumoniae in pigs by real-time quantitative PCR for the apxIVA gene.
"Actinobacillus porcitonsillarum" is a Gram-negative rod belonging to the Pasteurellaceae family, which is regularly isolated from the tonsils of healthy pigs and phenotypically resembles Actinobacillus pleuropneumoniae, the causative agent of porcine pleuropneumonia, which is associated with high economic burdens in the pig industry worldwide [1, 2].
Graaff, "Microbiological and clinical results of metronidazole plus amoxicillin therapy in actinobacillus actinomycetemcomitans-associated periodontitis," Journal of Periodontology, vol.