ArticleThe ISME journal2011
Distribution of Roseobacter RCA and SAR11 lineages in the North Sea and characteristics of an abundant RCA isolate.
Article in The ISME journal, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 63 papers.
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63 citing papers in PubMed.
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- Genome-resolved adaptation strategies ofApplied and environmental microbiology · 2025Article
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- Functional annotation and importance of marine bacterial transporters of plankton exometabolites.ISME communications · 2023Article
- Effects of iron concentration and DFB (Desferrioxamine-B) on transcriptional profiles of an ecologically relevant marine bacterium.PloS one · 2023Article
- Community Dynamics of Free-Living and Particle-Attached Bacteria over Sequential Blooms of Heterotrophic DinoflagellateApplied and environmental microbiology · 2022Article
- Significant Shifts in Microbial Communities Associated with Scleractinian Corals in Response to Algae Overgrowth.Microorganisms · 2022Article
- Biogeography of Southern Ocean prokaryotes: a comparison of the Indian and Pacific sectors.Environmental microbiology · 2022Article
- Mechanisms driving genome reduction of a novel Roseobacter lineage.The ISME journal · 2021Article
- Genomic Characterization of Two Novel RCA Phages Reveals New Insights into the Diversity and Evolution of Marine Viruses.Microbiology spectrum · 2021Article
- Phytoplankton exudates and lysates support distinct microbial consortia with specialized metabolic and ecophysiological traits.Proceedings of the National Academy of Sciences of the United States of America · 2021Article
- Sea foams are ephemeral hotspots for distinctive bacterial communities contrasting sea-surface microlayer and underlying surface water.FEMS microbiology ecology · 2021Article
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- The Influence of Genes on the "Killer Plasmid" ofFrontiers in microbiology · 2021Article
3 more citing papers are in PubMed but not listed here.
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7 authors.
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Abstract
The Roseobacter group and SAR11 clade constitute high proportions of the marine bacterioplankton, but only scarce information exists on the abundance of distinct populations of either lineage. Therefore, we quantified the abundance of the largest cluster of the Roseobacter group, the RCA (Roseobacter clade affiliated) cluster together with the SAR11 clade by quantitative PCR in the southern and eastern North Sea. The RCA cluster constituted up to 15 and 21% of total bacterial 16S ribosomal RNA (rRNA) genes in September 2005 and May 2006, respectively. At a few stations, the RCA cluster exceeded the SAR11 clade, whereas at most stations, SAR11 constituted higher fractions with maxima of 37%. In most samples, only one RCA ribotype was detected. RCA abundance was positively correlated with phaeopigments, chlorophyll, dissolved and particulate organic carbon (POC), turnover rates of dissolved free amino acids (DFAAs), temperature, and negatively correlated with salinity. The SAR11 clade was only correlated with POC (negatively, May) and with DFAA turnover rates (positively, September). An abundant RCA strain, 'Candidatus Planktomarina temperata', was isolated from the southern North Sea. This strain has an identical 16S rRNA gene sequence to the dominant RCA ribotype. Detection of the pufM gene, coding for a subunit of the reaction center of bacteriochlorophyll a, indicates the potential of the isolate for aerobic anoxygenic photosynthesis. Our study shows that a distinct population of the RCA cluster constitutes an abundant bacterioplankton group in a neritic sea of the temperate zone and indicates that this population has an important role during decaying phytoplankton blooms.
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