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Table 1 Insecticidal activities of 14 entomopathogenic bacteria (EPB) of Xenorhabdus and Photorhabdus against L5 larvae of S. exigua. Larvae were hemocoelically injected with different doses of freshly cultured bacteria. Before injection, larvae were surface sterilized with 70% ethanol. For each test dose, 10 larvae were used with three replications

From: Virulent secondary metabolites of entomopathogenic bacteria genera, Xenorhabdus and Photorhabdus, inhibit phospholipase A2 to suppress host insect immunity

EPBa LD50 (cfu/larva)
(95% CI)
Slope ± SE df χ2
Ptt 168.8 (110.4–318.3) 0.87 ± 0.27 1 0.817
Xh 179.2 (156.9–345.6) 0.77 ± 0.29 2 0.953
Xn F 216.9 (114.6–406.8) 0.82 ± 0.27 2 0.906
Xb 222.4 (120.3–432.7) 0.77 ± 0.28 2 0.835
Xn M 244.3 (147.5–480.4) 0.87 ± 0.26 2 0.959
Pl 193 244.3 (128.6–487.3) 0.87 ± 0.26 2 0.959
Pl laum 274.8 (150.3–512.6) 0.74 ± 0.29 2 0.985
Xn SK2 274.9 (151.4–523.2) 0.74 ± 0.29 2 0.985
Pl thra 282.87 (148.8–551.4) 0.97 ± 0.24 2 0.911
Xn 12,145 360.7 (201.7–680.4) 0.85 ± 0.26 2 0.849
Xn K1 550.9 (296.8–1079.8) 0.64 ± 0.32 1 0.879
Xn SK1 552.3 (294.2–1089.5) 0.64 ± 0.32 2 0.987
Xp 556.9 (289.5–1069.5) 0.64 ± 0.32 1 0.784
Xe 641.3 (346.4–1192.7) 0.66 ± 0.31 1 0.964
  1. aEPBs include Photorhabdus temperata Ssp. temperata ANU101 (‘Ptt’), Xenorhabdus hominickii ANU101 (‘Xh’), X. nematophila France (‘XnF’), X. bovienii (‘Xb’), X. nematophila Mexico (‘XnM’), Photorhabdus luminescens KACC12123 (‘Pl 193’), P. luminescens subsp. laumondii KACC12283 (‘Pl laum’), X. nematophila SK2 (‘XnSK2’), P. luminescens subsp. thracensis KACC12284 (‘Pl thra’), X. nematophila KACC12145 (‘Xn12145’), Xenorhabdus nematophila K1 (‘XnK1’), X. poinarii (‘Xp’), and X. ehlersii KSY (‘Xe’)