Haemolytic activity of Actinobacillus actinomycetemcomitans strains on different blood types

Revista do Instituto de Medicina Tropical de São Paulo

Mario Julio Avila-campos¹ 

[1] ,Universidade de São Paulo Instituto de Ciências Biomédicas Departamento de Microbiologia

关键词: Actinobacillus actinomycetemcomitans;    Haemolysis;    Pathogenicity;   

DOI  :  10.1590/S0036-46651995000300006

来源: SciELO

【 摘 要 】

Haemolytic activity of sixty nine Actinobacillus actinomycetemcomitans strains on different animal and human blood types was examined by using a trypticase soy agar supplemented with yeast extract (0.5%). Blood types used were: rabbit, sheep and human (A, Rh+; A, Rh-; B, Rh+; B, Rh-; O, Rh+; O, Rh-; AB, Rh+; AB, Rh- groups). Plates were inoculated and, incubated in microaerophilic conditions, at 37ºC, for 48 h. The haemolytic activity of the tested strains was characterized as alpha-haemolysis. Only two isolates were not haemolytic on all blood types (2.9%), two strains were haemolytic only on human blood (one strain on AB, Rh+ group and another one on A, Rh+ and AB, Rh+ groups). No specificity between haemolysin produced by the tested strains and blood type was observed.

【 授权许可】

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