ArticleMicrobial ecology2007
Phylogenetic analysis and fluorescence in situ hybridization detection of archaeal and bacterial endosymbionts in the anaerobic ciliate trimyema compressum.
Article in Microbial ecology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.
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Who cites it
24 citing papers in PubMed, 54 citations in OpenAlex.
- Distinct evolutionary origins and mixed-mode transmissions of methanogenic endosymbionts are revealed in anaerobic ciliated protists.Marine life science & technology · 2025Article
- Symbionts of Ciliates and Ciliates as Symbionts.Indian journal of microbiology · 2024Review
- Methanogenic symbionts of anaerobic ciliates are host and habitat specific.The ISME journal · 2024Article
- Identification and cultivation of anaerobic bacterial scavengers of dead cells.The ISME journal · 2023Article
- Emergence of putative energy parasites within Clostridia revealed by genome analysis of a novel endosymbiotic clade.The ISME journal · 2023Article
- The energy metabolism of Balantidium polyvacuolum inhabiting the hindgut of Xenocypris davidi.BMC genomics · 2023Article
- Diversity and taxonomic revision of methanogens and other archaea in the intestinal tract of terrestrial arthropods.Frontiers in microbiology · 2023Article
- Complete Genome Sequence of "Microbiology resource announcements · 2022Article
- Taxonomy and Molecular Phylogeny of Two New Species of Prostomatean Ciliates With Establishment ofFrontiers in microbiology · 2021Article
- Tripartite Symbiosis of an Anaerobic Scuticociliate with Two Hydrogenosome-Associated Endosymbionts, aApplied and environmental microbiology · 2019Article
- Morphology and Phylogeny of a New Species of Anaerobic Ciliate,Frontiers in microbiology · 2018Article
- Do Ruminal Ciliates Select Their Preys and Prokaryotic Symbionts?Frontiers in microbiology · 2018Article
- Complete Genome Sequence of the Intracellular Bacterial Symbiont TC1 in the Anaerobic Ciliate Trimyema compressum.Genome announcements · 2016Article
- Symbiosis Studies in Microbial Ecology.Microbes and environments · 2016Article
- Identification and Detection of Prokaryotic Symbionts in the Ciliate Metopus from Anaerobic Granular Sludge.Microbes and environments · 2015Article
- Methane production from protozoan endosymbionts following stimulation of microbial metabolism within subsurface sediments.Frontiers in microbiology · 2014Article
- Rediscovering the genus Lyticum, multiflagellated symbionts of the order Rickettsiales.Scientific reports · 2013Article
- Morphology, ultrastructure, and molecular phylogeny of the ciliate Sonderia vorax with insights into the systematics of order Plagiopylida.BMC microbiology · 2013Article
- "Candidatus Defluviella procrastinata" and "Candidatus Cyrtobacter zanobii", two novel ciliate endosymbionts belonging to the "Midichloria clade".Microbial ecology · 2013Article
- Revised systematics of Holospora-like bacteria and characterization of "Candidatus Gortzia infectiva", a novel macronuclear symbiont of Paramecium jenningsi.Microbial ecology · 2013Article
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Authors and funding
7 authors at 4 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The anaerobic free-living ciliate, Trimyema compressum, is known to harbor both methanogenic archaeal and bacterial symbionts in the cytoplasm. To clarify their phylogenetic belongings, a full-cycle rRNA approach was applied to this symbiosis. Phylogenetic analysis showed that the methanogenic symbiont was related to Methanobrevibacter arboriphilicus, which was distantly related to symbionts found in other Trimyema species. This result suggested that Trimyema species do not require very specific methanogenic symbionts, and symbiont replacement could have occurred in the history of Trimyema species. On the other hand, the bacterial symbiont was located near the lineage of the family Syntrophomonadaceae in the phylum Firmicutes. The sequence similarity between the bacterial symbiont and the nearest species was 85%, indicating that bacterial symbionts may be specific to the Trimyema species. The elimination of bacterial symbionts from the ciliate cell by antibiotic treatment resulted in considerably decreased host growth. However, it was not restored by stigmasterol addition (<2 microg ml(-1)), which was different from the previous report that showed that the symbiont-free strain required exogenous sterols for growth. In addition, the decline of host growth was not accompanied by host metabolism shift toward the formation of more reduced products, which suggested that the contribution of bacterial symbionts to the host ciliate was not a dispose of excessive reducing equivalent arising from the host's fermentative metabolism as methanogenic symbionts do. This study showed that bacterial symbionts make a significant contribution to the host ciliate by an unknown function and suggested that interactions between bacterial symbionts and T. compressum are more complicated than hitherto proposed.
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