Porphyromonas gingivalis Outer Membrane Vesicles Mediate Coaggregation and Piggybacking of Treponema denticola and Lachnoanaerobaculum saburreum

Table 2

Chemotaxis of T. denticola associated with various compounds.

Compound*	Chemotaxis^†
None	−
Cellobiose	++
Fructose	++
Glucose	++
Lactose	+
Sucrose	+++
Mannitol	+
Sorbitol	−
Arginine	−
Cysteine	−

*All compounds were used at 0.02% (w/v).
^†As determined by phase-contrast microscopy at a magnification of 1000X. Chemotaxis was expressed as follows: −, ≤1 bacterium/microscopic field; +, 2–5 bacteria/field; ++, 6–15 bacteria/field; +++, ≥16 bacteria/field.