Morton C E, Holt H A
Med Lab Sci. 1989 Jan;46(1):72-3.
A problem was encountered while using a commercial staphylococcus/streptococcus selective supplement in blood agar culture medium. A number of strains of Staphylococcus aureus failed to grow, although they grew well on non-selective media. The phenomenon was shown to be a result of a pH change caused by incubation in a carbon dioxide-enriched atmosphere, potentiating the activity of the nalidixic acid component. It is recommended that media containing this supplement are not incubated in CO2 enriched atmospheres.
在血琼脂培养基中使用商业性葡萄球菌/链球菌选择性添加剂时遇到了一个问题。许多金黄色葡萄球菌菌株未能生长，尽管它们在非选择性培养基上生长良好。该现象被证明是由于在富含二氧化碳的环境中孵育导致pH值变化，增强了萘啶酸成分的活性所致。建议含有这种添加剂的培养基不要在富含二氧化碳的环境中孵育。
