It is also commonly employed as the indicative organism in niacin bioassay experiments, in particular, AOAC International Official Method 944.13, as it is a niacin auxotroph.
该菌也常作为烟酸生物测定实验中的指示生物，特别是根据AOAC国际官方方法944.13，因为这是一个烟酸营养缺陷体。