ArticleProceedings of the National Academy of Sciences of the United States of America2008
Multiple genome sequences reveal adaptations of a phototrophic bacterium to sediment microenvironments.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 57 papers.
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57 citing papers in PubMed.
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- Bacterial adenine cross-feeding stems from a purine salvage bottleneck.The ISME journal · 2024Article
- A purine salvage bottleneck leads to bacterial adenine cross-feeding.bioRxiv : the preprint server for biology · 2023Article
- Complex evolutionary history of photosynthesis inMicrobial genomics · 2023Article
- The draft genome of Andean Rhodopseudomonas sp. strain AZUL predicts genome plasticity and adaptation to chemical homeostasis.BMC microbiology · 2022Article
- Genomic and Phylogenetic Characterization ofMicroorganisms · 2022Article
- Microbial biofilms as living photoconductors due to ultrafast electron transfer in cytochrome OmcS nanowires.Nature communications · 2022Article
- PioABC-Dependent Fe(II) Oxidation during Photoheterotrophic Growth on an Oxidized Carbon Substrate Increases Growth Yield.Applied and environmental microbiology · 2022Article
- Carbon substrate re-orders relative growth of a bacterium using Mo-, V-, or Fe-nitrogenase for nitrogen fixation.Environmental microbiology · 2022Article
- Microevolution, speciation and macroevolution in rhizobia: Genomic mechanisms and selective patterns.Frontiers in plant science · 2022Review
- The taxonomic distribution of histamine-secreting bacteria in the human gut microbiome.BMC genomics · 2021Article
- Transparent polyvinyl-alcohol cryogel as immobilisation matrix for continuous biohydrogen production by phototrophic bacteria.Biotechnology for biofuels · 2020Article
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- Modeling the Interplay between Photosynthesis, COScientific reports · 2019Article
- Diversity and distribution of thermophilic hydrogenogenic carboxydotrophs revealed by microbial community analysis in sediments from multiple hydrothermal environments in Japan.Archives of microbiology · 2019Article
- Phototrophic Lactate Utilization byApplied and environmental microbiology · 2019Article
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13 authors.
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No grant is acknowledged in the PubMed record.
Abstract
The bacterial genus Rhodopseudomonas is comprised of photosynthetic bacteria found widely distributed in aquatic sediments. Members of the genus catalyze hydrogen gas production, carbon dioxide sequestration, and biomass turnover. The genome sequence of Rhodopseudomonas palustris CGA009 revealed a surprising richness of metabolic versatility that would seem to explain its ability to live in a heterogeneous environment like sediment. However, there is considerable genotypic diversity among Rhodopseudomonas isolates. Here we report the complete genome sequences of four additional members of the genus isolated from a restricted geographical area. The sequences confirm that the isolates belong to a coherent taxonomic unit, but they also have significant differences. Whole genome alignments show that the circular chromosomes of the isolates consist of a collinear backbone with a moderate number of genomic rearrangements that impact local gene order and orientation. There are 3,319 genes, 70% of the genes in each genome, shared by four or more strains. Between 10% and 18% of the genes in each genome are strain specific. Some of these genes suggest specialized physiological traits, which we verified experimentally, that include expanded light harvesting, oxygen respiration, and nitrogen fixation capabilities, as well as anaerobic fermentation. Strain-specific adaptations include traits that may be useful in bioenergy applications. This work suggests that against a backdrop of metabolic versatility that is a defining characteristic of Rhodopseudomonas, different ecotypes have evolved to take advantage of physical and chemical conditions in sediment microenvironments that are too small for human observation.
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