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Predatory bacteria in the haemolymph of the cultured spiny lobster Panulirus ornatus

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Ooi, M. C., Goulden, E. F., Smith, G. G. and Bridle, A. R. (2021) Predatory bacteria in the haemolymph of the cultured spiny lobster Panulirus ornatus. Microbiology, 167 (11). ISSN 1465-2080


Article Link: https://doi.org/10.1099/mic.0.001113

Publisher URL: https://www.microbiologyresearch.org/content/journal/micro/10.1099/mic.0.001113


Bdellovibrio and like organisms (BALOs) are Gram-negative obligate predators of other bacteria in a range of environments. The recent discovery of BALOs in the circulatory system of cultured spiny lobster P. ornatus warrants more investigation. We used a combination of co-culture agar and broth assays and transmission electron microscopy to show a Halobacteriovorax sp. strain Hbv preyed upon the model prey bacterium Vibrio sp. strain Vib. The haemolymph microbiome of juvenile P. ornatus was characterised following injection of phosphate buffered saline (control) or prey and/or predator bacteria for 3 d. The predator Hbv had no effect on survival compared to the control after 3 d. However, when compared to the prey only treatment group, lobsters injected with both prey and predator showed significantly lower abundance of genus Vibrio in the haemolymph bacterial community composition. This study indicates that predatory bacteria are not pathogenic and may assist in controlling microbial population growth in the haemolymph of lobsters.

Item Type:Article
Business groups:Animal Science
Additional Information:Open access
Keywords:haemolymph cultured spiny lobster Bdellovibrio and like organisms predatory bacterium Halobacteriovorax prey bacterium Vibrio
Subjects:Science > Microbiology > Microorganisms in the animal body
Science > Microbiology > Bacteria
Veterinary medicine > Veterinary bacteriology
Aquaculture and Fisheries > Fisheries > Shellfish fisheries
Live Archive:06 Dec 2021 05:44
Last Modified:06 Dec 2021 05:44

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