Calcification of Bacillary and Streptococcal Variants of Bacterionema matruchotii

Two morphologic variants of the calcifiable microorganism Bacterionema matruchotii were examined for calcification after growth in a synthetic medium, and each calcified. The bacillary variant acquired intracellular apatite, whereas the streptococcal variant developed intracellular and extracellular apatite.