International Journal of Systematic and Evolutionary Microbiology (2013) 63, 3220-3224

Tiarin Ferreira, Carol A. van Reenen, Akihito Endo, Cathrin Spröer, Antoinette P. Malan and Leon M.T. Dicks (2013)
Description of Xenorhabdus khoisanae sp. nov., the symbiont of the entomopathogenic nematode Steinernema khoisanae
International Journal of Systematic and Evolutionary Microbiology 63 (9), 3220-3224
Abstract: Bacterial strain SF87^T, and additional strains SF80, SF362 and 106-C, isolated from the nematode Steinernema khoisanae, are non-bioluminescent Gram-reaction-negative bacteria that share many of the carbohydrate fermentation reactions recorded for the type strains of recognized Xenorhabdus species. Based on 16S rRNA gene sequence data, strain SF87^T is shown to be closely related (98% similarity) to Xenorhabdus hominickii DSM 17903^T. Nucleotide sequences of strain SF87 obtained from the recA, dnaN, gltX, gyrB and infB genes showed 96-97% similarity with Xenorhabdus miraniensis DSM 17902^T. However, strain SF87 shares only 52.7% DNA-DNA relatedness with the type strain of X. miraniensis, confirming that it belongs to a different species. Strains SF87^T, SF80, SF362 and 106-C are phenotypically similar to X. miraniensis and X. beddingii, except that they do not produce acid from aesculin. These strains are thus considered to represent a novel species of the genus Xenorhabdus, for which the name Xenorhabdus khoisanae sp. nov. is proposed. The type strain is SF87^T (=DSM 25463^T=ATCC BAA-2406^T).
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Link to article at publishers website
Database assignments for author(s): Antoinette P. Malan

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
identification/taxonomy

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
Steinernema khoisanae (entomopathogen)