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Fig. 1

Inhibitory effect of polyP with various chain lengths(P3~P75) on the growth of P. gingivalis A7A1-28

Fig. 2

Inhibitory effect of polyP with various chain lengths(P3~P75) on the growth of P. gingivalis W50

Fig. 3

A change in the growth of P. ginvivalis A7A1-28 with polyP75 added in the early exponential phase

Fig. 4

A change in the growth of P. ginvivalis W50 with polyP75 added in the early exponential phase

Fig. 5

The viable cell counts of P. ginvivalis A7A1-28 in the presence of polyP75

Fig. 6

The viable cell counts P. ginvivalis W50 in the presence of polyP75

Table 1

Leakage of intracellular nucleotide from P. gingivalis A7A1-28 in the presence of polyP75^a

^a; Cells grown up to their optical density of 0.6 at 540 nm were further incubated with various reagents alone or in combination and then intracellular nucleotide release from the cells was determined by measuring the absorbance at 260 nm.

Table 2

Leakage of intracellular nucleotide from P. gingivalis W50 in the presence of polyP75^a

^a; Cells grown up to their optical density of 0.6 at 540 nm were further incubated with various reagents alone or in combination and then intracellular nucleotide release from the cells was determined by measuring the absorbance at 260 nm.

Table 3

Effect of polyP (Calgon) on the growth of E. faecalis ATCC 29212^a

^a; Calgon at the concentrations of 0.1~1.0% was added to an inoculum of E. faecalis in BHI at the very beginning of the culture and incubated for 12 h anaerobically. Change in the growth of the bacterial cells was determined by measuring the optical density at 540 nm.

Table 4

Permeabilizing effect of polyP on sensitivity of E. faecalis to various antibiotics at lower concentrations as measured the bacterial optical density at 540 nm^a

^a; Antibiotics at lower concentrations with or without Calgon (0.1~1.0%) were added to the culture and incubated as described in Table 3. The optical density of growing E. faecalis cells was determined at 540 nm.

Abbreviation; AP, ampicillin; CFX, cefotaxime; EM, erythromycin; GM, gentamicin; KM, kanamycin; PN-G, pencillin-G; TC, tetracycline.

Table 5

Permeabilizing effect of polyP on sensitivity of E. faecalis to various antibiotics at higher concentrations as measured the bacterial optical density at 540 nm^a

^a; The experiment was performed as described in Table 4 except that the amount of antibiotics added was doubled.

Tables & Figures

REFERENCES

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