Genetic examination of the marine bacterium Pseudoalteromonas luteoviolacea and effects of its metamorphosis-inducing factors
| Autor: | Nathalie Delherbe, Nicholas J. Shikuma, Bradley S. Moore, Amanda T. Alker, Trevor N Purdy |
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| Rok vydání: | 2020 |
| Předmět: |
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Mutant Microbiology Article Bacterial genetics 03 medical and health sciences Bacterial Proteins Species Specificity Hydractinia Animals Pyrroles Metamorphosis Gene Ecology Evolution Behavior and Systematics 030304 developmental biology media_common Genetics 0303 health sciences Larva biology 030306 microbiology fungi Biofilm Metamorphosis Biological Polychaeta biology.organism_classification Pseudoalteromonas Hydrozoa Biofilms Mutation Bacteria Genome Bacterial |
| Zdroj: | Environ Microbiol |
| ISSN: | 1462-2920 |
| Popis: | Pseudoalteromonas luteoviolacea is a globally distributed marine bacterium that stimulates the metamorphosis of marine animal larvae, an important bacteria-animal interaction that can promote the recruitment of animals to benthic ecosystems. Recently, different P. luteoviolacea isolates have been shown to produce two stimulatory factors that can induce tubeworm and coral metamorphosis; Metamorphosis-Associated Contractile structures (MACs) and tetrabromopyrrole (TBP) respectively. However, it remains unclear what proportion of P. luteoviolacea isolates possess the genes encoding MACs, and what phenotypic effect MACs and TBP have on other larval species. Here, we show that 9 of 19 sequenced P. luteoviolacea genomes genetically encode both MACs and TBP. While P. luteoviolacea biofilms producing MACs stimulate the metamorphosis of the tubeworm Hydroides elegans, TBP biosynthesis genes had no effect under the conditions tested. Although MACs are lethal to larvae of the cnidarian Hydractinia symbiologicarpus, P. luteoviolacea mutants unable to produce MACs are capable of stimulating metamorphosis. Our findings reveal a hidden complexity of interactions between a single bacterial species, the factors it produces and two species of larvae belonging to different phyla. |
| Databáze: | OpenAIRE |
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