ArticleApplied and environmental microbiology2002
The genus Caedibacter comprises endosymbionts of Paramecium spp. related to the Rickettsiales (Alphaproteobacteria) and to Francisella tularensis (Gammaproteobacteria).
Article in Applied and environmental microbiology, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.
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38 citing papers in PubMed, 103 citations in OpenAlex.
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- Identification and Characterization of Acanthamoeba from Contact Lens Care Solutions and Hospital Environments in the Ophthalmology Wards and Operating Rooms in Southeastern Iran.Acta parasitologica · 2025Article
- Host-bacteria interactions: ecological and evolutionary insights from ancient, professional endosymbionts.FEMS microbiology reviews · 2024Review
- Symbionts of Ciliates and Ciliates as Symbionts.Indian journal of microbiology · 2024Review
- 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
- Cultivation Conditions Can Cause a Shift from Mutualistic to Parasitic Behavior in the Symbiosis Between Paramecium and Its Bacterial Symbiont Caedibacter taeniospiralis.Current microbiology · 2018Article
- More than the "Killer Trait": Infection with the Bacterial Endosymbiont Caedibacter taeniospiralis Causes Transcriptomic Modulation in Paramecium Host.Genome biology and evolution · 2018Article
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- High-risk regions and outbreak modelling of tularemia in humans.Epidemiology and infection · 2017Article
- Horizontal transfer of β-carbonic anhydrase genes from prokaryotes to protozoans, insects, and nematodes.Parasites & vectors · 2016Article
- A House for Two--Double Bacterial Infection in Euplotes woodruffi Sq1 (Ciliophora, Euplotia) Sampled in Southeastern Brazil.Microbial ecology · 2016Article
- "Candidatus Finniella" (Rickettsiales, Alphaproteobacteria), Novel Endosymbionts of Viridiraptorid Amoeboflagellates (Cercozoa, Rhizaria).Applied and environmental microbiology · 2016Article
- Article
- Factors Influencing Bacterial Diversity and Community Composition in Municipal Drinking Waters in the Ohio River Basin, USA.PloS one · 2016Article
- Draft Genome Sequence of Caedibacter varicaedens, a Kappa Killer Endosymbiont Bacterium of the Ciliate Paramecium biaurelia.Genome announcements · 2015Article
- Rediscovering the genus Lyticum, multiflagellated symbionts of the order Rickettsiales.Scientific reports · 2013Article
- A genomic survey of Reb homologs suggests widespread occurrence of R-bodies in proteobacteria.G3 (Bethesda, Md.) · 2013Article
- "Candidatus Defluviella procrastinata" and "Candidatus Cyrtobacter zanobii", two novel ciliate endosymbionts belonging to the "Midichloria clade".Microbial ecology · 2013Article
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6 authors at 3 institutions in 2 countries.
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No grant is acknowledged in the PubMed record.
Abstract
Obligate bacterial endosymbionts of paramecia able to form refractile inclusion bodies (R bodies), thereby conferring a killer trait upon their ciliate hosts, have traditionally been grouped into the genus CAEDIBACTER: Of the six species described to date, only the Paramecium caudatum symbiont Caedibacter caryophilus has been phylogenetically characterized by its 16S rRNA gene sequence, and it was found to be a member of the Alphaproteobacteria related to the RICKETTSIALES: In this study, the Caedibacter taeniospiralis type strain, an R-body-producing cytoplasmatic symbiont of Paramecium tetraurelia strain 51k, was investigated by comparative 16S rRNA sequence analysis and fluorescence in situ hybridization with specific oligonucleotide probes. C. taeniospiralis is not closely related to C. caryophilus (80% 16S rRNA sequence similarity) but forms a novel evolutionary lineage within the Gammaproteobacteria with the family Francisellaceae as a sister group (87% 16S rRNA sequence similarity). These findings demonstrate that the genus Caedibacter is polyphyletic and comprises at least two phylogenetically different bacterial species belonging to two different classes of the PROTEOBACTERIA: Comparative phylogenetic analysis of C. caryophilus, five closely related Acanthamoeba endosymbionts (including one previously uncharacterized amoebal symbiont identified in this study), and their hosts suggests that the progenitor of the alphaproteobacterial C. caryophilus lived within acanthamoebae prior to the infection of paramecia.
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