ArticleEnvironmental microbiology2019
Microbial iron metabolism as revealed by gene expression profiles in contrasted Southern Ocean regimes.
Article in Environmental microbiology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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Who cites it
13 citing papers in PubMed.
- Water mass specific genes dominate the Southern Ocean microbiome.Nature communications · 2026Article
- Microbial competition for iron determines its availability to the ferrous wheel.The ISME journal · 2025Article
- Bacterioplankton taxa compete for iron along the early spring-summer transition in the Arctic Ocean.Ecology and evolution · 2024Article
- Iron limitation of heterotrophic bacteria in the California Current System tracks relative availability of organic carbon and iron.The ISME journal · 2024Article
- Microbial iron acquisition is influenced by spatial and temporal conditions in a glacial influenced river and estuary system.Environmental microbiology · 2023Article
- Seasonal patterns in microbial carbon and iron transporter expression in the Southern Ocean.Microbiome · 2023Article
- The novel two-component system AmsSR governs alternative metabolic pathway usage inFrontiers in microbiology · 2023Article
- Effects of iron concentration and DFB (Desferrioxamine-B) on transcriptional profiles of an ecologically relevant marine bacterium.PloS one · 2023Article
- Petrobactin, a siderophore produced by Alteromonas, mediates community iron acquisition in the global ocean.The ISME journal · 2022Article
- Genome and Ecology of a NovelMicrobiology spectrum · 2021Article
- Microbial iron and carbon metabolism as revealed by taxonomy-specific functional diversity in the Southern Ocean.The ISME journal · 2021Article
- Resource Colimitation Drives Competition Between Phytoplankton and Bacteria in the Southern Ocean.Geophysical research letters · 2021Article
- Transcriptomic Study of Substrate-Specific Transport Mechanisms for Iron and Carbon in the Marine Copiotroph Alteromonas macleodii.mSystems · 2020Article
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5 authors.
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Abstract
Iron (Fe) is a limiting nutrient in large regions of the ocean, but the strategies of prokaryotes to cope with this micronutrient are poorly known. Using a gene-specific approach from metatranscriptomics data, we investigated seven Fe-related metabolic pathways in microbial communities from high nutrient low chlorophyll and naturally Fe-fertilized waters in the Southern Ocean. We observed major differences in the contribution of prokaryotic groups at different taxonomic levels to transcripts encoding Fe-uptake mechanisms, intracellular Fe storage and replacement and Fe-related pathways in the tricarboxylic acid (TCA) cycle. The composition of the prokaryotic communities contributing to the transcripts of a given Fe-related pathway was overall independent of the in situ Fe supply, indicating that microbial taxa utilize distinct Fe-related metabolic processes. Only a few prokaryotic groups contributed to the transcripts of more than one Fe-uptake mechanism, suggesting limited metabolic versatility. Taxa-specific expression of individual genes varied among prokaryotic groups and was substantially higher for all inspected genes in Fe-limited as compared to naturally fertilized waters, indicating the link between transcriptional state and Fe regime. Different metabolic strategies regarding low Fe concentrations in the Southern Ocean are discussed for two abundant prokaryotic groups, Pelagibacteraceae and Flavobacteriaceae.
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