Streckfuss J L, Smith W N, Brown L R, Campbell M M
J Bacteriol. 1974 Oct;120(1):502-6. doi: 10.1128/jb.120.1.502-506.1974.
Nine strains of cariogenic Streptococcus mutans and two strains of Streptococcus sanguis were tested for their ability to form hydroxyapatite. The cells were examined by X-ray diffraction and electron microscopy for apatite crystals after growth in a synthetic calcification medium. Each of the test isolates, except for one strain of S. sanguis, produced intracellular mineral. Two strains of S. mutans formed both intra- and extracellular crystals. There was no apparent relationship between calcifiability and serotype.
对9株致龋变形链球菌和2株血链球菌形成羟基磷灰石的能力进行了测试。在合成钙化培养基中生长后，通过X射线衍射和电子显微镜检查细胞中的磷灰石晶体。除1株血链球菌外，每种测试菌株均产生细胞内矿物质。2株变形链球菌形成了细胞内和细胞外晶体。钙化能力与血清型之间没有明显关系。
