Antibiotic activities of metabolites from Xenorhabdus cabanillasii
Entomopathogenic Steinernema riobrave is a warm adapted nematode species that uses an intermediate foraging strategy that lie between the ambush “sit and wait” strategy and cruise strategy to find and infect its both the mobile/sedentary insects at the soil surface or immobile stages deep in the soil and after infection, it uses its symbiotic bacteria, Xenorhabdus cabanillasii (Tailliez et al., 2006) to kill insect hosts. In addition to causing septicemia and directly participating in killing the insect hosts, symbiotic bacteria, Xenorhabdus cabanillasii also produces different types of antibiotic compounds including Cabanillasin (Houard et al., 2013) and Nemaucin (Gualtieri et al., 2012) that have either fungicidal and bactericidal or both properties (Isaacson and Webster, 2002).
Read following papers on the isolation and properties of antibiotic substances from Xenorhabdus cabanillasii, symbiotic bacteria of an entomopathogenic nematode, Steinernema riobrave
Houard, J., Aumelas, A., Noel, T., Pages, S., Givaudan, A., Fitton-Ouhabi, V., Villain-Guillot, P. and Gualtieri, M. 2013. Cabanillasin, a new antifungal metabolite, produced by entomopathogenic Xenorhabdus cabanillasii JM26. Journal of Antibiotics 66: 617-620.
Isaacson, P.J. and Webster, J.M 2002. Antimicrobial activity of Xenorhabdus sp. RIO (Enterobacteriaceae), symbiont of the entomopathogenic nematode, Steinernema riobrave (Rhabditida: Steinernematidae). Journal of Invertebrate Pathology 79: 146-153.
Tailliez, P., Pagès, S., Ginibre, N. and Boemare, N. 2006. New insight into diversity in the genus Xenorhabdus, including the description of ten novel species. International Journal of Systematic and Evolutionary Microbiology 56: 2805-2818.