ArticleScientific reports2019
Genome analyses of a placozoan rickettsial endosymbiont show a combination of mutualistic and parasitic traits.
Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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12 citing papers in PubMed.
- Genome-resolved metagenomics reveals unexpected diversity and host range of Candidatus Lariskella (Rickettsiales: Midichloriaceae).BMC genomics · 2026Article
- An ancient lysozyme in placozoans participates in acidic extracellular digestion.Communications biology · 2026Article
- The cobalamin processing enzyme of Trichoplax adhaerens.The Journal of biological chemistry · 2025Article
- Long-term dynamics of placozoan culture: emerging models for population and space biology.Frontiers in cell and developmental biology · 2024Article
- The ancestral architecture of the immune system in simplest animals.Frontiers in immunology · 2024Article
- Brief History of Placozoa.Methods in molecular biology (Clifton, N.J.) · 2024Review
- The "Other"Applied and environmental microbiology · 2022Review
- Expanding of Life Strategies in Placozoa: Insights From Long-Term Culturing ofFrontiers in cell and developmental biology · 2022Article
- Hidden cell diversity in Placozoa: ultrastructural insights from Hoilungia hongkongensis.Cell and tissue research · 2021Article
- Selective Advantages of Synapses in Evolution.Frontiers in cell and developmental biology · 2021Article
- The diversification and lineage-specific expansion of nitric oxide signaling in Placozoa: insights in the evolution of gaseous transmission.Scientific reports · 2020Article
- Evolution ofPeerJ · 2020Article
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5 authors.
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Abstract
Symbiotic relationships between eukaryotic hosts and bacteria range from parasitism to mutualism and may deeply influence both partners' fitness. The presence of intracellular bacteria in the metazoan phylum Placozoa has been reported several times, but without any knowledge about the nature of this relationship and possible implications for the placozoan holobiont. This information may be of crucial significance since little is known about placozoan ecology and how different species adapt to different environmental conditions, despite being almost invariable at the morphological level. We here report on the novel genome of the rickettsial endosymbiont of Trichoplax sp. H2 (strain "Panama"). The combination of eliminated and retained metabolic pathways of the bacterium indicates a potential for a mutualistic as well as for a parasitic relationship, whose outcome could depend on the environmental context. In particular we show that the endosymbiont is dependent on the host for growth and reproduction and that the latter could benefit from a supply with essential amino acids and important cofactors. These findings call for further studies to clarify the actual benefit for the placozoan host and to investigate a possible role of the endosymbiont for ecological separation between placozoan species.
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