Biofilm formation and adherence characteristics of an Elizabethkingia meningoseptica isolate from Oreochromis mossambicus

Table 3 Reversal and inhibition of autoaggregation and coaggregation following sugar, heat or proteinase K treatment of Elizabethkingia meningoseptica CH2B, L. innocua LMG 13568, and/or L. monocytogenes NCTC 4885

Treatment	Coaggregation indices (%)^a
		Untreated
	CH2B	*L. innocua*	*L. monocytogenes*
Untreated
CH2B	37.4	77.3	70.4
50 mM Lactose reversal (p = 0.03)
CH2B	68.7	96.0	89.6
L. innocua LMG 13568	94.5	-	-
L. monocytogenes NCTC 4885	87.8	-	-
50 mM Galactose reversal (p = 0.07)
CH2B	56.4	86.2	95.7
L. innocua LMG 13568	85.0	-	-
L. monocytogenes NCTC 4885	95.8	-	-
Heat inhibition (80°C for 30 min) (p = 0.08)
CH2B	20.9	33.5	12.9
L. innocua LMG 13568	93.8	-	-
L. monocytogenes NCTC 4885	97.7	-	-
Proteinase K inhibition (2 mg/ml) (p = 0.13)
CH2B	25.8	38.2	5.8
L. innocua LMG 13568	80.4	-	-
L. monocytogenes NCTC 4885	94.6	-	-

^a Coaggregation indices represent the means of two independent replicate experiments as described by Malik et al. [16] and Basson et al. [11].

ISSN: 1476-0711