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. 2014 Nov 6;5:584. doi: 10.3389/fmicb.2014.00584

Table 3.

Impact of pretreatment of V. harveyi with catecholamines and catecholamine receptor antagonists on virulence of the bacterium toward gnotobiotic brine shrimp larvae.

Treatment Survival (%)a
Control 100 ± 0c
V. harveyi 50 ± 5b
V. harveyi [50 μM NE] 27 ± 6a
V. harveyi [50 μM NE + 100 μM phentolamine] 48 ± 3b
V. harveyi [50 μM NE + 10 μM phenoxybenzamine] 47 ± 3b
V. harveyi [50 μM NE + 50 μM labetalol] 48 ± 3b
V. harveyi [50 μM NE + 100 μM propanolol] 29 ± 4a
V. harveyi [50 μM NE + 5 pM LED209] 55 ± 5b
V. harveyi [50 μM Dopa] 35 ± 5a
V. harveyi [50 μM Dopa + 50 μM chlorpromazine] 47 ± 3b
V. harveyi [50 μM Dopa + 5 pM LED209] 52 ± 8b

aSurvival after 2 days of challenge with V. harveyi ATCC BAA-1116 (average ± SE of four replicates). Survival in the control treatment was set at 100% and the other treatments were normalized accordingly. Square brackets refer to pretreatment – V. harveyi was either or not pretreated with catecholamines and antagonists for 4 h and washed prior to inoculation into the brine shrimp rearing water. Values with a different superscript letter are significantly different from each other (One way ANOVA with Tukey’s post hoc test; p < 0.01).