TABLE 1

Mean arginine deiminase activity and S. mutans antagonism of diverse Streptococcus species

SpeciesNo. of isolatesADS activity
(nmol/min/mg of protein)a
Antagonism
(mm)a
S. australis/A12-like4432 ± 1161.4 ± 0.2
S. cristatus11149 ± 681.0 ± 0.7
S. gordonii17325 ± 1590. 9 ± 0.4
S. intermedius11417 ± 1690 ± 0
S. mitis2783.7 ± 125***0.6 ± 0.7
S. oralis858.8 ± 37**0.28 ± 0.5
S. oralis subsp. dentisani6156 ± 2910.91 ± 0.9
S. oralis + S. oralis subsp. dentisani14100 ± 199**0.56 ± 0.8
S. parasanguinis16881.9
S. salivarius146.80
S. sanguinis25311 ± 2200.22 ± 0.4
Streptococcus species25.72 ± 2.60.89 ± 0.8
  • a All values are means ± standard deviations (SD). Values that are significantly different from the value for S. gordonii are indicated by asterisks as follows: **, P < 0.01; ***, P < 0.001.