口腔营养变异链球菌的β-N-乙酰-D-氨基葡萄糖苷酶活性

beta-N-acetyl-D-glucosaminidase activity of oral nutritionally variant streptococci.

作者信息

Lampis G, Pinducciu G, Pompei R

机构信息

Istituto di Microbiologia, Università di Cagliari, Italy.

出版信息

FEMS Microbiol Lett. 1991 Mar 15;63(1):95-7. doi: 10.1016/0378-1097(91)90534-h.

DOI:10.1016/0378-1097(91)90534-h

PMID:2044944

Abstract

The ability of nutritionally variant streptococci from the oral cavity to produce beta-N-acetyl-D-glucosaminidase (NAGase) activity was studied. Of the three biotypes analyzed, the strains belonging to biotype III were all shown to produce detectable amounts of both cell-associated and excreted NAGase activity; some strains, but not all of biotype II, were also good NAGase producers, whilst strains of biotype I were not. NVS may contribute to the production of NAGase activity found in human saliva.

摘要

对来自口腔的营养变异型链球菌产生β-N-乙酰-D-葡萄糖胺酶（NAGase）活性的能力进行了研究。在所分析的三种生物型中，属于生物型III的菌株均显示出可检测到的细胞相关和分泌型NAGase活性；生物型II的一些菌株（但并非全部）也是良好的NAGase产生菌，而生物型I的菌株则不是。营养变异型链球菌可能有助于人类唾液中发现的NAGase活性的产生。