Table 1.

Differentially expressed A. actinomycetemcomitans genes in different growth conditions.

		Up 1.5-Fold **			Down 1.5-Fold **
Growth Condition *	Core	Non-Island Accessory Genes	Island Genes	Core	Non-Island Accessory Genes	Island Genes
Planktonic in mTSB	66	4	9	143	10	10
Biofilm in Keratinocyte Medium	454	53	72	145	13	13
Biofilm in RPMI	515	115	158	352	22	17

* As compared to biofilm in modified Trypticase Soy Broth (mTSB) control. ** Statistically significant at p < 0.05 by Student’s t-test.