Multiple-pathways light modulation in Pleurosigma strigosum bi-raphid diatom
Abstract Ordered, quasi-ordered, and even disordered nanostructures can be identified as constituent components of several protists, plants and animals, making possible an efficient manipulation of light for intra- and inter- species communication, camouflage, or for the enhancement of primary produ...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2024-03-01
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| Series: | Scientific Reports |
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| Online Access: | https://doi.org/10.1038/s41598-024-56206-y |
| _version_ | 1797247254140026880 |
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| author | Edoardo De Tommasi Ilaria Rea Maria Antonietta Ferrara Luca De Stefano Mario De Stefano Adil Y. Al-Handal Marija Stamenković Angela Wulff |
| author_facet | Edoardo De Tommasi Ilaria Rea Maria Antonietta Ferrara Luca De Stefano Mario De Stefano Adil Y. Al-Handal Marija Stamenković Angela Wulff |
| author_sort | Edoardo De Tommasi |
| collection | DOAJ |
| description | Abstract Ordered, quasi-ordered, and even disordered nanostructures can be identified as constituent components of several protists, plants and animals, making possible an efficient manipulation of light for intra- and inter- species communication, camouflage, or for the enhancement of primary production. Diatoms are ubiquitous unicellular microalgae inhabiting all the aquatic environments on Earth. They developed, through tens of millions of years of evolution, ultrastructured silica cell walls, the frustules, able to handle optical radiation through multiple diffractive, refractive, and wave-guiding processes, possibly at the basis of their high photosynthetic efficiency. In this study, we employed a range of imaging, spectroscopic and numerical techniques (including transmission imaging, digital holography, photoluminescence spectroscopy, and numerical simulations based on wide-angle beam propagation method) to identify and describe different mechanisms by which Pleurosigma strigosum frustules can modulate optical radiation of different spectral content. Finally, we correlated the optical response of the frustule to the interaction with light in living, individual cells within their aquatic environment following various irradiation treatments. The obtained results demonstrate the favorable transmission of photosynthetic active radiation inside the cell compared to potentially detrimental ultraviolet radiation. |
| first_indexed | 2024-04-24T19:55:46Z |
| format | Article |
| id | doaj.art-2e805303c5a44af9b2d41c9280ca4266 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-04-24T19:55:46Z |
| publishDate | 2024-03-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-2e805303c5a44af9b2d41c9280ca42662024-03-24T12:19:09ZengNature PortfolioScientific Reports2045-23222024-03-0114111810.1038/s41598-024-56206-yMultiple-pathways light modulation in Pleurosigma strigosum bi-raphid diatomEdoardo De Tommasi0Ilaria Rea1Maria Antonietta Ferrara2Luca De Stefano3Mario De Stefano4Adil Y. Al-Handal5Marija Stamenković6Angela Wulff7National Research Council, Institute of Applied Sciences and Intelligent Systems “E. Caianiello”, Unit of NaplesNational Research Council, Institute of Applied Sciences and Intelligent Systems “E. Caianiello”, Unit of NaplesNational Research Council, Institute of Applied Sciences and Intelligent Systems “E. Caianiello”, Unit of NaplesNational Research Council, Institute of Applied Sciences and Intelligent Systems “E. Caianiello”, Unit of NaplesDepartment of Environmental, Biological, and Pharmaceutical Sciences and Technologies, University of Campania “Luigi Vanvitelli”Department of Biological and Environmental Sciences, University of GothenburgDepartment of Biological and Environmental Sciences, University of GothenburgDepartment of Biological and Environmental Sciences, University of GothenburgAbstract Ordered, quasi-ordered, and even disordered nanostructures can be identified as constituent components of several protists, plants and animals, making possible an efficient manipulation of light for intra- and inter- species communication, camouflage, or for the enhancement of primary production. Diatoms are ubiquitous unicellular microalgae inhabiting all the aquatic environments on Earth. They developed, through tens of millions of years of evolution, ultrastructured silica cell walls, the frustules, able to handle optical radiation through multiple diffractive, refractive, and wave-guiding processes, possibly at the basis of their high photosynthetic efficiency. In this study, we employed a range of imaging, spectroscopic and numerical techniques (including transmission imaging, digital holography, photoluminescence spectroscopy, and numerical simulations based on wide-angle beam propagation method) to identify and describe different mechanisms by which Pleurosigma strigosum frustules can modulate optical radiation of different spectral content. Finally, we correlated the optical response of the frustule to the interaction with light in living, individual cells within their aquatic environment following various irradiation treatments. The obtained results demonstrate the favorable transmission of photosynthetic active radiation inside the cell compared to potentially detrimental ultraviolet radiation.https://doi.org/10.1038/s41598-024-56206-yPhotonics in natureBiophotonicsNanostructured biomaterialsDiatoms |
| spellingShingle | Edoardo De Tommasi Ilaria Rea Maria Antonietta Ferrara Luca De Stefano Mario De Stefano Adil Y. Al-Handal Marija Stamenković Angela Wulff Multiple-pathways light modulation in Pleurosigma strigosum bi-raphid diatom Scientific Reports Photonics in nature Biophotonics Nanostructured biomaterials Diatoms |
| title | Multiple-pathways light modulation in Pleurosigma strigosum bi-raphid diatom |
| title_full | Multiple-pathways light modulation in Pleurosigma strigosum bi-raphid diatom |
| title_fullStr | Multiple-pathways light modulation in Pleurosigma strigosum bi-raphid diatom |
| title_full_unstemmed | Multiple-pathways light modulation in Pleurosigma strigosum bi-raphid diatom |
| title_short | Multiple-pathways light modulation in Pleurosigma strigosum bi-raphid diatom |
| title_sort | multiple pathways light modulation in pleurosigma strigosum bi raphid diatom |
| topic | Photonics in nature Biophotonics Nanostructured biomaterials Diatoms |
| url | https://doi.org/10.1038/s41598-024-56206-y |
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