TABLE 1

Visualization of bacterial species kept in HEPES buffer at different pH values with C-SNARF-4

StrainVisualization at pHa:
4.04.55.05.56.06.57.07.58.0
A. naeslundii AK 6+++(+)(+)÷÷÷÷
A. viscosus CCUG 33710++++(+)÷÷÷÷
B. dentium DSM 20436+++(+)÷÷÷÷÷
E. faecalis DSM 20478+++++÷÷÷÷
F. nucleatum ATCC 10953+++(+)÷÷÷÷÷
L. paracasei DSM 20020+++(+)÷÷÷÷÷
N. subflava DSM 17610++++(+)÷÷÷÷
P. gingivalis ATCC 33277++++++÷÷÷
P. intermedia CCUG 24041++++++÷÷÷
S. gordonii ATCC 10558+++(+)÷÷÷÷÷
S. mitis SK24+++(+)÷÷÷÷÷
S. mutans DSM 20523+++(+)÷÷÷÷÷
S. oralis NCTC 7864++++÷÷÷÷÷
S. sanguinis ATCC 10556++++÷÷÷÷÷
V. parvula CCUG 5123++++(+)÷÷÷÷
  • a + indicates that a strain was visualized well at a given pH. (+) indicates that a strain was visualized but with low contrast compared to the extracellular background. ÷ indicates that a strain could not be distinguished from the extracellular background at a given pH.