ArticleGenome biology2013
Genomic analysis reveals key aspects of prokaryotic symbiosis in the phototrophic consortium "Chlorochromatium aggregatum".
Article in Genome biology, 2013. 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.
- Host-initiated microbial association leads to stable ectosymbiosis in an ecological model.PLoS computational biology · 2026Article
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- Deep Sequencing of Crohn's Disease Lamina Propria Phagocytes Identifies Pathobionts and Correlates With Pro-Inflammatory Gene Expression.Inflammatory bowel diseases · 2025Article
- Hyperactive nanobacteria with host-dependent traits pervade Omnitrophota.Nature microbiology · 2023Article
- Protein-chromophore interactions controlling photoisomerization in red/green cyanobacteriochromes.Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology · 2022Article
- Genetically Programmable Microbial Assembly.ACS synthetic biology · 2021Article
- Simultaneous Genome Sequencing ofMicroorganisms · 2020Article
- Endosymbiosis before eukaryotes: mitochondrial establishment in protoeukaryotes.Cellular and molecular life sciences : CMLS · 2020Review
- Division of labour in a matrix, rather than phagocytosis or endosymbiosis, as a route for the origin of eukaryotic cells.Biology direct · 2020Article
- The Role of Constructive Neutral Evolution in the Development of Complexity from Symbioses: A Microbe-Centric View.Results and problems in cell differentiation · 2020Article
- Draft Whole-Genome Sequence of the Green Sulfur Photosynthetic BacteriumMicrobiology resource announcements · 2019Article
- Single-cell genomics of co-sorted Nanoarchaeota suggests novel putative host associations and diversification of proteins involved in symbiosis.Microbiome · 2018Article
- Transcriptome analysis and anaerobic CMicrobiologyOpen · 2018Article
- Symbiosis in eukaryotic evolution.Journal of theoretical biology · 2017Article
- The hologenome concept: we need to incorporate function.Theory in biosciences = Theorie in den Biowissenschaften · 2017Article
- Metagenomic analysis reveals a green sulfur bacterium as a potential coral symbiont.Scientific reports · 2017Article
- Breath-giving cooperation: critical review of origin of mitochondria hypotheses : Major unanswered questions point to the importance of early ecology.Biology direct · 2017Review
- A passive mutualistic interaction promotes the evolution of spatial structure within microbial populations.BMC evolutionary biology · 2017Article
- Genome Sequence of Prosthecochloris sp. Strain CIB 2401 of the Phylum Chlorobi.Genome announcements · 2016Article
- Refining the phylum Chlorobi by resolving the phylogeny and metabolic potential of the representative of a deeply branching, uncultivated lineage.The ISME journal · 2016Article
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14 authors.
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Abstract
background'Chlorochromatium aggregatum' is a phototrophic consortium, a symbiosis that may represent the highest degree of mutual interdependence between two unrelated bacteria not associated with a eukaryotic host. 'Chlorochromatium aggregatum' is a motile, barrel-shaped aggregate formed from a single cell of 'Candidatus Symbiobacter mobilis", a polarly flagellated, non-pigmented, heterotrophic bacterium, which is surrounded by approximately 15 epibiont cells of Chlorobium chlorochromatii, a non-motile photolithoautotrophic green sulfur bacterium.
resultsWe analyzed the complete genome sequences of both organisms to understand the basis for this symbiosis. Chl. chlorochromatii has acquired relatively few symbiosis-specific genes; most acquired genes are predicted to modify the cell wall or function in cell-cell adhesion. In striking contrast, 'Ca. S. mobilis' appears to have undergone massive gene loss, is probably no longer capable of independent growth, and thus may only reproduce when consortia divide. A detailed model for the energetic and metabolic bases of the dependency of 'Ca. S. mobilis' on Chl. chlorochromatii is described.
conclusionsGenomic analyses suggest that three types of interactions lead to a highly sophisticated relationship between these two organisms. Firstly, extensive metabolic exchange, involving carbon, nitrogen, and sulfur sources as well as vitamins, occurs from the epibiont to the central bacterium. Secondly, 'Ca. S. mobilis' can sense and move towards light and sulfide, resources that only directly benefit the epibiont. Thirdly, electron cycling mechanisms, particularly those mediated by quinones and potentially involving shared protonmotive force, could provide an important basis for energy exchange in this and other symbiotic relationships.
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