Fatty acids in microalgae and cyanobacteria in a changing world: Contrasting temperate and cold environments
Under the present changing climate conditions and the observed temperature increase, it is of high importance to understand its effects on aquatic microbial life, and organisms’ adaptations at the biochemical level. To adjust to temperature or salinity stress and avoid cell damage, organisms alter t...
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ftconicet:oai:ri.conicet.gov.ar:11336/166544 2023-10-09T21:46:40+02:00 Fatty acids in microalgae and cyanobacteria in a changing world: Contrasting temperate and cold environments Hernando, Marcelo Pablo Schloss, Irene Ruth de la Rosa, Florencia Grisel de Troch, Marleen application/pdf http://hdl.handle.net/11336/166544 eng eng Tech Science Press info:eu-repo/semantics/altIdentifier/url/https://www.techscience.com/biocell/v46n3/45630 info:eu-repo/semantics/altIdentifier/doi/10.32604/biocell.2022.017309 http://hdl.handle.net/11336/166544 Hernando, Marcelo Pablo; Schloss, Irene Ruth; de la Rosa, Florencia Grisel; de Troch, Marleen; Fatty acids in microalgae and cyanobacteria in a changing world: Contrasting temperate and cold environments; Tech Science Press; Biocell; 46; 3; 11-2021; 607-621 0327-9545 1667-5746 CONICET Digital CONICET info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/2.5/ar/ ANTARCTIC CYANOBACTERIA ESSENTIAL FAS INCREASED TEMPERATURE MICROALGAE TEMPERATE https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion ftconicet https://doi.org/10.32604/biocell.2022.017309 2023-09-24T19:34:04Z Under the present changing climate conditions and the observed temperature increase, it is of high importance to understand its effects on aquatic microbial life, and organisms’ adaptations at the biochemical level. To adjust to temperature or salinity stress and avoid cell damage, organisms alter their degree of fatty acids (FAs) saturation. Thus, temperature is expected to have strong effects on both the quantity and quality of FAs in aquatic microorganisms. Here we review some recent findings about FAs sensitivity to climate change in contrasting environments. Overall, heat waves may induce changes in the relative abundance of polyunsaturated FAs (PUFA). However, the impact of the exposure to warming waters is different in temperate and polar environments. In cold marine waters, high concentration of omega-3 (ω3) FAs such as eicosapentaenoic acid (EPA) is promoted due to the activation of the desaturase enzyme. In this way, cells have enough energy to produce or activate antioxidant protection mechanisms and avoid oxidative stress due to heat waves. Contrastingly, under high irradiance and heat wave conditions in temperate environments, photosystems’ protection is achieved by decreasing EPA concentration due to desaturase sensitivity. Essential FAs are transferred in aquatic food webs. Therefore, any alteration in the production of essential FAs by phytoplankton (the main source of ω3) due to climate warming can be transferred to higher trophic levels, with cascading effects for the entire aquatic ecosystem. Fil: Hernando, Marcelo Pablo. Comisión Nacional de Energía Atómica. Gerencia de Area de Aplicaciones de la Tecnología Nuclear. Gerencia de Radiobiología (Centro Atómico Constituyentes); Argentina. Red de Investigación de Estresores Marinos-costeros en América Latina y el Caribe; Argentina Fil: Schloss, Irene Ruth. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección ... Article in Journal/Newspaper Antarc* Antarctic CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) Antarctic Austral Argentina Pablo ENVELOPE(-63.717,-63.717,-64.283,-64.283) BIOCELL 46 3 607 621 |
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CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
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ftconicet |
language |
English |
topic |
ANTARCTIC CYANOBACTERIA ESSENTIAL FAS INCREASED TEMPERATURE MICROALGAE TEMPERATE https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
spellingShingle |
ANTARCTIC CYANOBACTERIA ESSENTIAL FAS INCREASED TEMPERATURE MICROALGAE TEMPERATE https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 Hernando, Marcelo Pablo Schloss, Irene Ruth de la Rosa, Florencia Grisel de Troch, Marleen Fatty acids in microalgae and cyanobacteria in a changing world: Contrasting temperate and cold environments |
topic_facet |
ANTARCTIC CYANOBACTERIA ESSENTIAL FAS INCREASED TEMPERATURE MICROALGAE TEMPERATE https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
description |
Under the present changing climate conditions and the observed temperature increase, it is of high importance to understand its effects on aquatic microbial life, and organisms’ adaptations at the biochemical level. To adjust to temperature or salinity stress and avoid cell damage, organisms alter their degree of fatty acids (FAs) saturation. Thus, temperature is expected to have strong effects on both the quantity and quality of FAs in aquatic microorganisms. Here we review some recent findings about FAs sensitivity to climate change in contrasting environments. Overall, heat waves may induce changes in the relative abundance of polyunsaturated FAs (PUFA). However, the impact of the exposure to warming waters is different in temperate and polar environments. In cold marine waters, high concentration of omega-3 (ω3) FAs such as eicosapentaenoic acid (EPA) is promoted due to the activation of the desaturase enzyme. In this way, cells have enough energy to produce or activate antioxidant protection mechanisms and avoid oxidative stress due to heat waves. Contrastingly, under high irradiance and heat wave conditions in temperate environments, photosystems’ protection is achieved by decreasing EPA concentration due to desaturase sensitivity. Essential FAs are transferred in aquatic food webs. Therefore, any alteration in the production of essential FAs by phytoplankton (the main source of ω3) due to climate warming can be transferred to higher trophic levels, with cascading effects for the entire aquatic ecosystem. Fil: Hernando, Marcelo Pablo. Comisión Nacional de Energía Atómica. Gerencia de Area de Aplicaciones de la Tecnología Nuclear. Gerencia de Radiobiología (Centro Atómico Constituyentes); Argentina. Red de Investigación de Estresores Marinos-costeros en América Latina y el Caribe; Argentina Fil: Schloss, Irene Ruth. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección ... |
format |
Article in Journal/Newspaper |
author |
Hernando, Marcelo Pablo Schloss, Irene Ruth de la Rosa, Florencia Grisel de Troch, Marleen |
author_facet |
Hernando, Marcelo Pablo Schloss, Irene Ruth de la Rosa, Florencia Grisel de Troch, Marleen |
author_sort |
Hernando, Marcelo Pablo |
title |
Fatty acids in microalgae and cyanobacteria in a changing world: Contrasting temperate and cold environments |
title_short |
Fatty acids in microalgae and cyanobacteria in a changing world: Contrasting temperate and cold environments |
title_full |
Fatty acids in microalgae and cyanobacteria in a changing world: Contrasting temperate and cold environments |
title_fullStr |
Fatty acids in microalgae and cyanobacteria in a changing world: Contrasting temperate and cold environments |
title_full_unstemmed |
Fatty acids in microalgae and cyanobacteria in a changing world: Contrasting temperate and cold environments |
title_sort |
fatty acids in microalgae and cyanobacteria in a changing world: contrasting temperate and cold environments |
publisher |
Tech Science Press |
url |
http://hdl.handle.net/11336/166544 |
long_lat |
ENVELOPE(-63.717,-63.717,-64.283,-64.283) |
geographic |
Antarctic Austral Argentina Pablo |
geographic_facet |
Antarctic Austral Argentina Pablo |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
info:eu-repo/semantics/altIdentifier/url/https://www.techscience.com/biocell/v46n3/45630 info:eu-repo/semantics/altIdentifier/doi/10.32604/biocell.2022.017309 http://hdl.handle.net/11336/166544 Hernando, Marcelo Pablo; Schloss, Irene Ruth; de la Rosa, Florencia Grisel; de Troch, Marleen; Fatty acids in microalgae and cyanobacteria in a changing world: Contrasting temperate and cold environments; Tech Science Press; Biocell; 46; 3; 11-2021; 607-621 0327-9545 1667-5746 CONICET Digital CONICET |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/2.5/ar/ |
op_doi |
https://doi.org/10.32604/biocell.2022.017309 |
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46 |
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