ArticlePloS one2013
Response of the ubiquitous pelagic diatom Thalassiosira weissflogii to darkness and anoxia.
Article in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
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Who cites it
17 citing papers in PubMed, 49 citations in OpenAlex.
- Nitrate reduction to ammonium: a phylogenetic, physiological, and genetic aspects in Prokaryotes and eukaryotes.Archives of microbiology · 2024Review
- Induction of photosynthesis under anoxic condition inFrontiers in plant science · 2023Article
- Ontology-driven analysis of marine metagenomics: what more can we learn from our data?GigaScience · 2022Article
- Article
- Integrative omics identification, evolutionary and structural analysis of low affinity nitrate transporters in diatoms, diNPFs.Open biology · 2021Article
- Occurrence, Evolution and Specificities of Iron-Sulfur Proteins and Maturation Factors in Chloroplasts from Algae.International journal of molecular sciences · 2021Review
- Review
- Dark metabolism: a molecular insight into how the Antarctic sea-ice diatom Fragilariopsis cylindrus survives long-term darkness.The New phytologist · 2019Article
- Expression of novel nitrate reductase genes in the harmful alga, Chattonella subsalsa.Scientific reports · 2018Article
- Effect of settled diatom-aggregates on benthic nitrogen cycling.Limnology and oceanography · 2018Article
- Diatoms dominate the eukaryotic metatranscriptome during spring in coastal 'dead zone' sediments.Proceedings. Biological sciences · 2017Article
- Sinks and Sources of Intracellular Nitrate in Gromiids.Frontiers in microbiology · 2017Article
- Intracellular Nitrate of Marine Diatoms as a Driver of Anaerobic Nitrogen Cycling in Sinking Aggregates.Frontiers in microbiology · 2016Article
- Anaerobic Nitrogen Turnover by Sinking Diatom Aggregates at Varying Ambient Oxygen Levels.Frontiers in microbiology · 2016Article
- Nitrate Storage and Dissimilatory Nitrate Reduction by Eukaryotic Microbes.Frontiers in microbiology · 2015Review
- The challenge of ecophysiological biodiversity for biotechnological applications of marine microalgae.Marine drugs · 2014Review
- Dissimilatory nitrate reduction by Aspergillus terreus isolated from the seasonal oxygen minimum zone in the Arabian Sea.BMC microbiology · 2014Article
Corrections and comments
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Authors and funding
4 authors at 4 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Thalassiosira weissflogii, an abundant, nitrate-storing, bloom-forming diatom in the world's oceans, can use its intracellular nitrate pool for dissimilatory nitrate reduction to ammonium (DNRA) after sudden shifts to darkness and anoxia, most likely as a survival mechanism. T. weissflogii cells that stored 4 mM (15)N-nitrate consumed 1.15 (±0.25) fmol NO3 (-) cell(-1) h(-1) and simultaneously produced 1.57 (±0.21) fmol (15)NH4 (+) cell(-1) h(-1) during the first 2 hours of dark/anoxic conditions. Ammonium produced from intracellular nitrate was excreted by the cells, indicating a dissimilatory rather than assimilatory pathway. Nitrite and the greenhouse gas nitrous oxide were produced at rates 2-3 orders of magnitude lower than the ammonium production rate. While DNRA activity was restricted to the first few hours of darkness and anoxia, the subsequent degradation of photopigments took weeks to months, supporting the earlier finding that diatoms resume photosynthesis even after extended exposure to darkness and anoxia. Considering the high global abundance of T. weissflogii, its production of ammonium and nitrous oxide might be of ecological importance for oceanic oxygen minimum zones and the atmosphere, respectively.
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