NAD(+)-glycohydrolase productivity of haemolytic streptococci assayed by a simple fluorescent method and its relation to T serotype.
The ability of haemolytic streptococci to produce NAD(+)-glycohydrolase was investigated by a fluorescent assay. Enzyme production was found in 31 (91%) of 34 group A, 17 (61%) of 28 group C and eight (27%) of 30 group G isolates. The high producers were found in 22 (65%) of group A, one (4%) of group C and none of group G isolates. The high producers of the group A isolates belonged to T-1, T-3, T-4 or T-12 serotype. These results suggest that NAD(+)-glycohydrolase productivity of streptococci is closely related to specific Lancefield's groups or T serotypes.
Karasawa
T
T
Department of Bacteriology, School of Medicine, Kanazawa University, Japan.
Yamakawa
K
K
Tanaka
D
D
Gyobu
Y
Y
Nakamura
S
S
D002455:Cell Division; D005470:Fluorometry / Q000379:methods; D006801:Humans; D009244:NAD+ Nucleosidase / Q000032:analysis*; D012703:Serotyping; D013290:Streptococcal Infections / Q000382:microbiology; D013291:Streptococcus / Q000145:classification* / Q000201:enzymology* / Q000254:growth & development / Q000276:immunology; D013297:Streptococcus pyogenes / Q000145:classification / Q000201:enzymology / Q000254:growth & development / Q000276:immunology
D009244:NAD+ Nucleosidase