Does enterococcus show beta or gama hamolysis?

[scilearner]

Previously it belonged to lance field group D, that means it must show beta haemolysis. But now it is classified in gamma group. I'm confused does enterococcus show beta or gama haemolysis or both. Thanks

[CharonY]

IIRC Lancefield Ds are weakly to non-hemolytic.

[scilearner]

IIRC Lancefield Ds are weakly to non-hemolytic.

 

Thanks for the reply CharonY But I'm still not sure. I mean if you belong to lance field group you must show beta haemolysis right, I mean all beta haemolysis bacteria are divided further by lance field groups. . So do you mean enterococcus show both. Thanks

[CharonY]

Well, technically yes. I never really used the Lancefield classification (as I come from the molecular side). Technically the Lancefield system groups are based on the detection of specific carbohydrates in the cell wall, not on their hemolytic activities. While it was supposed to classifiy streptococci, though some misclassifications (i.e. the mentioned enterococci) occured. In any case the D group are generally alpha or gamma, using the hemolysis system.

I.e. these are two unrelated classfication systems that look at different properties.

 

 

Also the name of the researcher is Rebecca Lancefield. Not lance field.