ArticleScientific reports2017
Marine diatoms change their gene expression profile when exposed to microscale turbulence under nutrient replete conditions.
Article in Scientific reports, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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10 citing papers in PubMed.
- Effects of turbulence on diatoms of the genus Pseudo-nitzschia spp. and associated bacteria.FEMS microbiology ecology · 2024Article
- Single cell dynamics and nitrogen transformations in the chain forming diatom Chaetoceros affinis.The ISME journal · 2023Article
- Multiple Profile Models Extract Features from Protein Sequence Data and Resolve Functional Diversity of Very Different Protein Families.Molecular biology and evolution · 2022Article
- MyCLADE: a multi-source domain annotation server for sequence functional exploration.Nucleic acids research · 2021Article
- Integrative omics identification, evolutionary and structural analysis of low affinity nitrate transporters in diatoms, diNPFs.Open biology · 2021Article
- Bistability in oxidative stress response determines the migration behavior of phytoplankton in turbulence.Proceedings of the National Academy of Sciences of the United States of America · 2021Article
- On the fate of sinking diatoms: the transport of active buoyancy-regulating cells in the ocean.Philosophical transactions. Series A, Mathematical, physical, and engineering sciences · 2020Article
- Turbulence induces clustering and segregation of non-motile, buoyancy-regulating phytoplankton.Journal of the Royal Society, Interface · 2019Article
- Role of nutrient concentrations and water movement on diatom's productivity in culture.Scientific reports · 2019Article
- Nutrient consumption and chain tuning in diatoms exposed to storm-like turbulence.Scientific reports · 2017Article
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11 authors.
Funding
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Abstract
Diatoms are a fundamental microalgal phylum that thrives in turbulent environments. Despite several experimental and numerical studies, if and how diatoms may profit from turbulence is still an open question. One of the leading arguments is that turbulence favours nutrient uptake. Morphological features, such as the absence of flagella, the presence of a rigid exoskeleton and the micrometre size would support the possible passive but beneficial role of turbulence on diatoms. We demonstrate that in fact diatoms actively respond to turbulence in non-limiting nutrient conditions. TURBOGEN, a prototypic instrument to generate natural levels of microscale turbulence, was used to expose diatoms to the mechanical stimulus. Differential expression analyses, coupled with microscopy inspections, enabled us to study the morphological and transcriptional response of Chaetoceros decipiens to turbulence. Our target species responds to turbulence by activating energy storage pathways like fatty acid biosynthesis and by modifying its cell chain spectrum. Two other ecologically important species were examined and the occurrence of a morphological response was confirmed. These results challenge the view of phytoplankton as unsophisticated passive organisms.
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