Isolation and identification of Xenorhabdus and Photorhabdus bacteria associated with entomopathogenic nematodes and their larvicidal activity against Aedes aegypti

Table 2 Comparative data for mortality rates of fed and unfed Aedes aegypti

Bacterium (Code)	Mortality rate (%)		P	Mortality rate (%)		P	Mortality rate (%)		P	Mortality rate (%)		P
	24 h			48 h			72 h			96 h
	Condition			Condition			Condition			Condition
	Fed	Unfed		Fed	Unfed		Fed	Unfed		Fed	Unfed
Xenorhabdus ehlersii (bMH9.2_TH)	39	56	0.260	96	98	1.000	98	99	1.000	100	100	nd
Xenorhabdus miraniensis (bMH16.4_TH)	7	0	0.471	9	0	0.206	18	6	0.251	18	6	0.251
Xenorhabdus miraniensis (bMH16.1_TH)	0	0	nd	3	6	0.135	3	8	0.082	6	8	0.110
Xenorhabdus miraniensis (bMH4.5_TH)	3	3	0.206	7	3	1.000	9	7	1.000	12	20	0.051
Xenorhabdus stockiae (bLPA12.2_TH)	4	3	1.000	14	20	0.712	41	27	0.087	43	37	0.899
Xenorhabdus stockiae (bLPA18.4_TH)	16	24	0.931	54	47	0.357	64	67	0.534	67	67	1.000
Xenorhabdus stockiae (bCR7.3_TH)	0	0	nd	1	0	1.000	2	1	1.000	6	23	0.030*
Xenorhabdus stockiae (bPH23.5_TH)	0	3	0.471	4	7	1.000	7	9	0.436	7	33	0.022*
Photorhabdus luminescens hainanensis (bPY17.4_TH)	2	2	0.765	7	4	0.316	21	9	0.074	21	9	0.074
Photorhabdus luminescens hainanensis (bLPO16.2_TH)	1	1	1.000	12	1	0.029*	14	4	0.103	21	19	1.000
Photorhabdus luminescens laumondii (bMH8.4_TH)	1	2	1.000	20	7	0.499	26	9	0.572	33	19	0.893
Photorhabdus luminescens akhurstii (bNA22.1_TH)	4	4	0.620	14	14	0.364	22	19	1.000	24	21	1.000

*Significant difference (P < 0.05) between fed and unfed condition by Fisher’s exact test
Abbreviation: nd not determined

ISSN: 1756-3305