Incorporating a molecular antenna in diatom microalgae cells enhances photosynthesis

Abstract Diatom microalgae have great industrial potential as next-generation sources of biomaterials and biofuels. Effective scale-up of their production can be pursued by enhancing the efficiency of their photosynthetic process in a way that increases the solar-to-biomass conversion yield. A proof...

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Autores principales:	Gabriella Leone, Gabriel De la Cruz Valbuena, Stefania Roberta Cicco, Danilo Vona, Emiliano Altamura, Roberta Ragni, Egle Molotokaite, Michela Cecchin, Stefano Cazzaniga, Matteo Ballottari, Cosimo D’Andrea, Guglielmo Lanzani, Gianluca Maria Farinola
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/5e084477ee50405f954426948c62b9bc
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spelling	oai:doaj.org-article:5e084477ee50405f954426948c62b9bc2021-12-02T13:34:31ZIncorporating a molecular antenna in diatom microalgae cells enhances photosynthesis10.1038/s41598-021-84690-z2045-2322https://doaj.org/article/5e084477ee50405f954426948c62b9bc2021-03-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-84690-zhttps://doaj.org/toc/2045-2322Abstract Diatom microalgae have great industrial potential as next-generation sources of biomaterials and biofuels. Effective scale-up of their production can be pursued by enhancing the efficiency of their photosynthetic process in a way that increases the solar-to-biomass conversion yield. A proof-of-concept demonstration is given of the possibility of enhancing the light absorption of algae and of increasing their efficiency in photosynthesis by in vivo incorporation of an organic dye which acts as an antenna and enhances cells’ growth and biomass production without resorting to genetic modification. A molecular dye (Cy5) is incorporated in Thalassiosira weissflogii diatom cells by simply adding it to the culture medium and thus filling the orange gap that limits their absorption of sunlight. Cy5 enhances diatoms’ photosynthetic oxygen production and cell density by 49% and 40%, respectively. Cy5 incorporation also increases by 12% the algal lipid free fatty acid (FFA) production versus the pristine cell culture, thus representing a suitable way to enhance biofuel generation from algal species. Time-resolved spectroscopy reveals Förster Resonance Energy Transfer (FRET) from Cy5 to algal chlorophyll. The present approach lays the basis for non-genetic tailoring of diatoms’ spectral response to light harvesting, opening up new ways for their industrial valorization.Gabriella LeoneGabriel De la Cruz ValbuenaStefania Roberta CiccoDanilo VonaEmiliano AltamuraRoberta RagniEgle MolotokaiteMichela CecchinStefano CazzanigaMatteo BallottariCosimo D’AndreaGuglielmo LanzaniGianluca Maria FarinolaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Gabriella Leone Gabriel De la Cruz Valbuena Stefania Roberta Cicco Danilo Vona Emiliano Altamura Roberta Ragni Egle Molotokaite Michela Cecchin Stefano Cazzaniga Matteo Ballottari Cosimo D’Andrea Guglielmo Lanzani Gianluca Maria Farinola Incorporating a molecular antenna in diatom microalgae cells enhances photosynthesis
description	Abstract Diatom microalgae have great industrial potential as next-generation sources of biomaterials and biofuels. Effective scale-up of their production can be pursued by enhancing the efficiency of their photosynthetic process in a way that increases the solar-to-biomass conversion yield. A proof-of-concept demonstration is given of the possibility of enhancing the light absorption of algae and of increasing their efficiency in photosynthesis by in vivo incorporation of an organic dye which acts as an antenna and enhances cells’ growth and biomass production without resorting to genetic modification. A molecular dye (Cy5) is incorporated in Thalassiosira weissflogii diatom cells by simply adding it to the culture medium and thus filling the orange gap that limits their absorption of sunlight. Cy5 enhances diatoms’ photosynthetic oxygen production and cell density by 49% and 40%, respectively. Cy5 incorporation also increases by 12% the algal lipid free fatty acid (FFA) production versus the pristine cell culture, thus representing a suitable way to enhance biofuel generation from algal species. Time-resolved spectroscopy reveals Förster Resonance Energy Transfer (FRET) from Cy5 to algal chlorophyll. The present approach lays the basis for non-genetic tailoring of diatoms’ spectral response to light harvesting, opening up new ways for their industrial valorization.
format	article
author	Gabriella Leone Gabriel De la Cruz Valbuena Stefania Roberta Cicco Danilo Vona Emiliano Altamura Roberta Ragni Egle Molotokaite Michela Cecchin Stefano Cazzaniga Matteo Ballottari Cosimo D’Andrea Guglielmo Lanzani Gianluca Maria Farinola
author_facet	Gabriella Leone Gabriel De la Cruz Valbuena Stefania Roberta Cicco Danilo Vona Emiliano Altamura Roberta Ragni Egle Molotokaite Michela Cecchin Stefano Cazzaniga Matteo Ballottari Cosimo D’Andrea Guglielmo Lanzani Gianluca Maria Farinola
author_sort	Gabriella Leone
title	Incorporating a molecular antenna in diatom microalgae cells enhances photosynthesis
title_short	Incorporating a molecular antenna in diatom microalgae cells enhances photosynthesis
title_full	Incorporating a molecular antenna in diatom microalgae cells enhances photosynthesis
title_fullStr	Incorporating a molecular antenna in diatom microalgae cells enhances photosynthesis
title_full_unstemmed	Incorporating a molecular antenna in diatom microalgae cells enhances photosynthesis
title_sort	incorporating a molecular antenna in diatom microalgae cells enhances photosynthesis
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/5e084477ee50405f954426948c62b9bc
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Incorporating a molecular antenna in diatom microalgae cells enhances photosynthesis

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