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. 2008 Mar 31;74(11):3541–3550. doi: 10.1128/AEM.02879-07

TABLE 1.

Results of FISH analyses of control-, nutrient-, and chlorhexidine-treated biofilm communities

Treatment	% Area (mean ± SD)
Treatment	Betaproteobacteria	Gammaproteobacteria	Arch915	EUB338
Control	2.9 ± 3.2^b	3.2 ± 4.4^b	3.5 ± 3.3^b	6.1 ± 5.9^a
Nutrient (10 μg liter⁻¹)	1.9 ± 1.9^a	1.5 ± 1.4^a	1.5 ± 1.2^a	6.5 ± 6.1^a
Chlorhexidine (10 μg liter⁻¹)	1.7 ± 1.3^a	1.8 ± 1.4^a	2.8 ± 1.2^a,^b	6.1 ± 6.1^a

^a

Not significantly different from values with similar labels (P < 0.05).

^b

Not significantly different from values with similar labels (P < 0.05).