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Predatory bacteria in the haemolymph of the cultured spiny lobster Panulirus ornatus
- Source :
- Microbiology
- Publication Year :
- 2021
- Publisher :
- Microbiology Society, 2021.
-
Abstract
- 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.
- Subjects :
- haemolymph
animal structures
Bacteria
biology
Microbiota
Microbial Interactions and Communities
Panulirus ornatus
Zoology
biology.organism_classification
Microbiology
Bdellovibrio
Bdellovibrio and like organisms
Vibrio
Predation
cultured spiny lobster
Hemolymph
Animals
Palinuridae
prey bacterium Vibrio
Predator
Spiny lobster
predatory bacterium Halobacteriovorax
Subjects
Details
- ISSN :
- 14652080 and 13500872
- Volume :
- 167
- Database :
- OpenAIRE
- Journal :
- Microbiology
- Accession number :
- edsair.doi.dedup.....c6e162e876eac07fedc6a529410022bb