Phytoplankton antioxidant systems and their contributions to cellular elemental stoichiometry

J. Scott P. McCain; Erin M. Bertrand

doi:10.1002/lol2.10233

Phytoplankton antioxidant systems and their contributions to cellular elemental stoichiometry

J. Scott P. McCain, Erin M. Bertrand

Medicine

Résultat de recherche: Article › examen par les pairs

4 Citations (Scopus)

Résumé

Oxidative stress plays a role in many aspects of cellular metabolism, and as a result, antioxidants have the potential to impact cellular stoichiometry and biogeochemical cycles. We reviewed how antioxidant systems influence macronutrient and micronutrient stoichiometry in marine phytoplankton and identified that antioxidant systems have important implications for micronutrient stoichiometry. By leveraging diatom proteomic data, we empirically estimated the level of micronutrient quota variation that can be attributed to antioxidant systems. Fe-containing antioxidant expression may contribute to 3.3–10 μmol : mol variation in Fe : C, and superoxide dismutases appear to be important contributors to variation in Mn, Ni, Zn, and Cu quotas in phytoplankton. Critical next steps for the study of phytoplankton antioxidant systems are to (1) distinguish between oxidative stress and redox-based gene regulation and (2) determine how antioxidants influence variation or consistency in micronutrient quotas under various environmental conditions.

Langue d'origine	English
Pages (de-à)	96-111
Nombre de pages	16
Journal	Limnology And Oceanography Letters
Volume	7
Numéro de publication	2
DOI	https://doi.org/10.1002/lol2.10233
Statut de publication	Published - avr. 2022

Note bibliographique

Funding Information:
We thank Doug Campbell, Chris Algar, Julie LaRoche, Rob Beiko, Noor Youssef, Loay Jabre, Elden Rowland, Naaman Omar, and Ed Susko for discussions. Thanks to Tom Delmont for correspondence about metagenome assembled genomes. Thank you to Ben Twining for reviewing this manuscript and the other anonymous reviewer. JSPM acknowledges support from the NSERC CREATE Transatlantic Ocean System Science and Technology Program and the Killam Scholarship. This project was financially supported by NSERC Discovery Grant RGPIN‐2015‐05009 to EMB, Simons Foundation Grant 504183 to EMB, an NSERC CGS Postgraduate scholarship to JSPM.

Publisher Copyright:
© 2021 The Authors. Limnology and Oceanography Letters published by Wiley Periodicals LLC on behalf of Association for the Sciences of Limnology and Oceanography.

ASJC Scopus Subject Areas

Aquatic Science
Oceanography

ODD de l’ONU

Cette action contribue à la réalisation des objectifs de développement durable suivants

Accès au document

10.1002/lol2.10233

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abstract = "Oxidative stress plays a role in many aspects of cellular metabolism, and as a result, antioxidants have the potential to impact cellular stoichiometry and biogeochemical cycles. We reviewed how antioxidant systems influence macronutrient and micronutrient stoichiometry in marine phytoplankton and identified that antioxidant systems have important implications for micronutrient stoichiometry. By leveraging diatom proteomic data, we empirically estimated the level of micronutrient quota variation that can be attributed to antioxidant systems. Fe-containing antioxidant expression may contribute to 3.3–10 μmol : mol variation in Fe : C, and superoxide dismutases appear to be important contributors to variation in Mn, Ni, Zn, and Cu quotas in phytoplankton. Critical next steps for the study of phytoplankton antioxidant systems are to (1) distinguish between oxidative stress and redox-based gene regulation and (2) determine how antioxidants influence variation or consistency in micronutrient quotas under various environmental conditions.",

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note = "Funding Information: We thank Doug Campbell, Chris Algar, Julie LaRoche, Rob Beiko, Noor Youssef, Loay Jabre, Elden Rowland, Naaman Omar, and Ed Susko for discussions. Thanks to Tom Delmont for correspondence about metagenome assembled genomes. Thank you to Ben Twining for reviewing this manuscript and the other anonymous reviewer. JSPM acknowledges support from the NSERC CREATE Transatlantic Ocean System Science and Technology Program and the Killam Scholarship. This project was financially supported by NSERC Discovery Grant RGPIN‐2015‐05009 to EMB, Simons Foundation Grant 504183 to EMB, an NSERC CGS Postgraduate scholarship to JSPM. Publisher Copyright: {\textcopyright} 2021 The Authors. Limnology and Oceanography Letters published by Wiley Periodicals LLC on behalf of Association for the Sciences of Limnology and Oceanography.",

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N2 - Oxidative stress plays a role in many aspects of cellular metabolism, and as a result, antioxidants have the potential to impact cellular stoichiometry and biogeochemical cycles. We reviewed how antioxidant systems influence macronutrient and micronutrient stoichiometry in marine phytoplankton and identified that antioxidant systems have important implications for micronutrient stoichiometry. By leveraging diatom proteomic data, we empirically estimated the level of micronutrient quota variation that can be attributed to antioxidant systems. Fe-containing antioxidant expression may contribute to 3.3–10 μmol : mol variation in Fe : C, and superoxide dismutases appear to be important contributors to variation in Mn, Ni, Zn, and Cu quotas in phytoplankton. Critical next steps for the study of phytoplankton antioxidant systems are to (1) distinguish between oxidative stress and redox-based gene regulation and (2) determine how antioxidants influence variation or consistency in micronutrient quotas under various environmental conditions.

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Phytoplankton antioxidant systems and their contributions to cellular elemental stoichiometry

Résumé

Note bibliographique

ASJC Scopus Subject Areas

ODD de l’ONU

Accès au document

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