Marine diatoms change their gene expression profile when exposed to microscale turbulence under nutrient replete conditions
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. Morpholog...
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2017
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oai:doaj.org-article:d804cbee9af04687816ede80b0fe17582021-12-02T15:05:46ZMarine diatoms change their gene expression profile when exposed to microscale turbulence under nutrient replete conditions10.1038/s41598-017-03741-62045-2322https://doaj.org/article/d804cbee9af04687816ede80b0fe17582017-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-03741-6https://doaj.org/toc/2045-2322Abstract 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.Alberto AmatoGianluca Dell’AquilaFrancesco MusacchiaRossella AnnunziataAri UgarteNicolas MailletAlessandra CarboneMaurizio Ribera d’AlcalàRemo SangesDaniele IudiconeMaria I. FerranteNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-11 (2017) |
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Medicine R Science Q |
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Medicine R Science Q Alberto Amato Gianluca Dell’Aquila Francesco Musacchia Rossella Annunziata Ari Ugarte Nicolas Maillet Alessandra Carbone Maurizio Ribera d’Alcalà Remo Sanges Daniele Iudicone Maria I. Ferrante Marine diatoms change their gene expression profile when exposed to microscale turbulence under nutrient replete conditions |
| description |
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. |
| format |
article |
| author |
Alberto Amato Gianluca Dell’Aquila Francesco Musacchia Rossella Annunziata Ari Ugarte Nicolas Maillet Alessandra Carbone Maurizio Ribera d’Alcalà Remo Sanges Daniele Iudicone Maria I. Ferrante |
| author_facet |
Alberto Amato Gianluca Dell’Aquila Francesco Musacchia Rossella Annunziata Ari Ugarte Nicolas Maillet Alessandra Carbone Maurizio Ribera d’Alcalà Remo Sanges Daniele Iudicone Maria I. Ferrante |
| author_sort |
Alberto Amato |
| title |
Marine diatoms change their gene expression profile when exposed to microscale turbulence under nutrient replete conditions |
| title_short |
Marine diatoms change their gene expression profile when exposed to microscale turbulence under nutrient replete conditions |
| title_full |
Marine diatoms change their gene expression profile when exposed to microscale turbulence under nutrient replete conditions |
| title_fullStr |
Marine diatoms change their gene expression profile when exposed to microscale turbulence under nutrient replete conditions |
| title_full_unstemmed |
Marine diatoms change their gene expression profile when exposed to microscale turbulence under nutrient replete conditions |
| title_sort |
marine diatoms change their gene expression profile when exposed to microscale turbulence under nutrient replete conditions |
| publisher |
Nature Portfolio |
| publishDate |
2017 |
| url |
https://doaj.org/article/d804cbee9af04687816ede80b0fe1758 |
| work_keys_str_mv |
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1718388736185597952 |