ArticleApplied and environmental microbiology2004
Ecological significance of microdiversity: identical 16S rRNA gene sequences can be found in bacteria with highly divergent genomes and ecophysiologies.
Article in Applied and environmental microbiology, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 136 papers.
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Who cites it
136 citing papers in PubMed.
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- Discovery and cultivation of prokaryotic taxa in the age of metagenomics and artificial intelligence.The ISME journal · 2025Article
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- Phylogenomic analysis of the Ponticus clade: strains isolated from the spotted rose snapper (Lutjanus guttatus).Antonie van Leeuwenhoek · 2024Review
- Comprehensive analysis of genomic variation, pan-genome and biosynthetic potential of Corynebacterium glutamicum strains.PloS one · 2024Article
- The contribution of plasmids to trait diversity in a soil bacterium.ISME communications · 2024Article
- Geographic and Ecological Diversity of Green Sulfur Bacteria in Hot Spring Mat Communities.Microorganisms · 2023Article
- Fecal Microbial Composition and Predicted Functional Profile in Irritable Bowel Syndrome Differ between Subtypes and Geographical Locations.Microorganisms · 2023Article
- Bacterial and archaeal community distributions and cosmopolitanism across physicochemically diverse hot springs.ISME communications · 2023Article
- Plasmid permissiveness of wastewater microbiomes can be predicted from 16S rRNA sequences by machine learning.Bioinformatics (Oxford, England) · 2023Article
- In the right place, at the right time: the integration of bacteria into the Plankton Ecology Group model.Microbiome · 2023Article
- A phylogenomic and comparative genomic analysis of Commensalibacter, a versatile insect symbiont.Animal microbiome · 2023Article
- Effects of anthropogenic stress on hosts and their microbiomes: Treated wastewater alters performance and gut microbiome of a key detritivore (Evolutionary applications · 2023Article
- Genomic and physiological characterization of Novosphingobium terrae sp. nov., an alphaproteobacterium isolated from Cerrado soil containing a mega-sized chromid.Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2023Article
- Microdiversity sustains the distribution of rhizosphere-associated bacterial species from the root surface to the bulk soil region in maize crop fields.Frontiers in plant science · 2023Article
76 more citing papers are in PubMed but not listed here.
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Authors and funding
2 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
A combination of cultivation-based methods with a molecular biological approach was used to investigate whether planktonic bacteria with identical 16S rRNA gene sequences can represent distinct eco- and genotypes. A set of 11 strains of Brevundimonas alba were isolated from a bacterial freshwater community by conventional plating or by using a liquid most-probable-number (MPN) dilution series. These strains had identical 16S rRNA gene sequences and represented the dominant phylotype in the plateable fraction, as well as in the highest positive dilutions of the MPN series. However, internally transcribed spacer and enterobacterial repetitive intergenic consensus PCR fingerprinting analyses, as well as DNA-DNA hybridization analyses, revealed great genetic diversity among the 11 strains. Each strain utilized a specific combination of 59 carbon substrates, and the niche overlap indices were low, suggesting that each strain occupied a different ecological niche. In dialysis cultures incubated in situ, each strain had a different growth rate and cell yield. We thus demonstrated that the B. alba strains represent distinct populations with genetically determined adaptations and probably occupy different ecological niches. Our results have implications for assessment of the diversity and biogeography of bacteria and increase the perception of natural diversity beyond the level of 16S rRNA gene sequences.
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