ArticleThe ISME journal2018
A gene transfer event suggests a long-term partnership between eustigmatophyte algae and a novel lineage of endosymbiotic bacteria.
Article in The ISME journal, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.
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Who cites it
27 citing papers in PubMed.
- Insights into the Phylogeny and Enigmatic Mitochondrial Biology of Eustigmatophyte Algae From Over 50 Newly Sequenced Organellar Genomes.Genome biology and evolution · 2026Article
- Charting the landscape of organellar genome evolution in eustigmatophyte algae.bioRxiv : the preprint server for biology · 2026Article
- Facultative mutualism betweenISME communications · 2026Article
- 2-Deoxy-4-ACS chemical biology · 2024Article
- Eustigmatophyte model of red-shifted chlorophyll a absorption in light-harvesting complexes.Communications biology · 2024Article
- Implicating the red body of Nannochloropsis in forming the recalcitrant cell wall polymer algaenan.Nature communications · 2024Article
- Article
- Host association and intracellularity evolved multiple times independently in the Rickettsiales.Nature communications · 2024Article
- Microbial community response to hydrocarbon exposure in iron oxide mats: an environmental study.Frontiers in microbiology · 2024Article
- Rickettsial DNA and a trans-splicing rRNA group I intron in the unorthodox mitogenome of the fern Haplopteris ensiformis.Communications biology · 2023Article
- The terrestrial isopod symbiont 'Candidatus Hepatincola porcellionum' is a potential nutrient scavenger related to Holosporales symbionts of protists.ISME communications · 2023Article
- Metagenome diversity illuminates origins of pathogen effectors.bioRxiv : the preprint server for biology · 2023Article
- The evolutionary origin of host association in the Rickettsiales.Nature microbiology · 2022Article
- Gene Transfer Agents in Bacterial Endosymbionts of Microbial Eukaryotes.Genome biology and evolution · 2022Article
- Genomic diversity across the Rickettsia and 'Candidatus Megaira' genera and proposal of genus status for the Torix group.Nature communications · 2022Article
- EDB Gene Cluster-Dependent Indole Production Is Responsible for the Ability ofJournal of natural products · 2022Article
- Identification of the new prenyltransferase Ubi-297 from marine bacteria and elucidation of its substrate specificity.Beilstein journal of organic chemistry · 2022Article
- Editorial: Symbioses Between Protists and Bacteria/Archaea.Frontiers in microbiology · 2021Article
- Evolution ofPeerJ · 2020Article
- Metabolic Contributions of an Alphaproteobacterial Endosymbiont in the ApicomplexanFrontiers in microbiology · 2020Article
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11 authors.
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No grant is acknowledged in the PubMed record.
Abstract
Rickettsiales are obligate intracellular bacteria originally found in metazoans, but more recently recognized as widespread endosymbionts of various protists. One genus was detected also in several green algae, but reports on rickettsialean endosymbionts in other algal groups are lacking. Here we show that several distantly related eustigmatophytes (coccoid algae belonging to Ochrophyta, Stramenopiles) are infected by Candidatus Phycorickettsia gen. nov., a new member of the family Rickettsiaceae. The genome sequence of Ca. Phycorickettsia trachydisci sp. nov., an endosymbiont of Trachydiscus minutus CCALA 838, revealed genomic features (size, GC content, number of genes) typical for other Rickettsiales, but some unusual aspects of the gene content were noted. Specifically, Phycorickettsia lacks genes for several components of the respiration chain, haem biosynthesis pathway, or c-di-GMP-based signalling. On the other hand, it uniquely harbours a six-gene operon of enigmatic function that we recently reported from plastid genomes of two distantly related eustigmatophytes and from various non-rickettsialean bacteria. Strikingly, the eustigmatophyte operon is closely related to the one from Phycorickettsia, suggesting a gene transfer event between the endosymbiont and host lineages in early eustigmatophyte evolution. We hypothesize an important role of the operon in the physiology of Phycorickettsia infection and a long-term eustigmatophyte-Phycorickettsia coexistence.
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