抄録
Malachitegreen-fuchsin staining method was employed on Group-A Streptococcus.
The use of 0.01% tannic acid for the pretreatment resulted in a difinite differential staining effect, which is similar to those observed in other groups of bacteria. Stainability to malachitegreen and viability of the cells correlated very well with each other, and the former is lost by depolymerization or the removal of DNA from bacterial cells.