Influence of Warm-Acclimation Rate on Polar Lipids of Ulva lactuca

Barkina, Maria; Pomazenkova, L. A.; Chopenko, Natalia; Velansky, P. V.; Kostetsky, E. Ya.; Sanina, N. M.

doi:10.1134/s1021443720010021

Cited by 9 publications

(9 citation statements)

References 24 publications

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“…The extreme environmental conditions in the Magellanic sub-Antarctic Ecoregion (Iriarte et al 2019) represent a stress factor for macroalgae inhabiting these ecosystems. Two of the most studied metabolic responses associated with environmental stress are the production of phenolic compounds and the change in lipid and fatty acid compositions (Koch et al 2016;Britton et al 2020;Barkina et al 2020;Ho et al 2021;Chemello et al 2022). According to some studies, environmental stress triggers changes in several physiological processes, along with the accumulation of reactive oxygen species (ROS), which, despite their multifunctionality, increase the production of several antioxidant enzymes and metabolites, such as polyunsaturated fatty acids (Kumar et al 2014;Chemello et al 2022).…”

Section: Discussionmentioning

confidence: 99%

“…Sub-Antarctic macroalgae are exposed to environmental stressors characteristic of high latitudes, such as cold temperature, which induces the biosynthesis of unsaturated fatty acids in macroalgae. This is a mechanism of acclimatization to low temperatures (Khotimchenko and Yakovleva 2005;Koch et al 2016;Britton et al 2020;Barkina et al 2020;Ho et al 2021;Chemello et al 2022). Environmental stress triggers alterations in several physiological processes, along with the accumulation of reactive oxygen species (ROS).…”

Section: Introductionmentioning

confidence: 99%

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Fatty acid composition of different structures in Macrocystis pyrifera (L.) C. Agardh from the sub-Antarctic Magellan Ecoregion: nutritional and biomedical potential

Méndez

Rivero

Bahamonde

et al. 2023

Preprint

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The sub-Antarctic Magellan Ecoregion is a unique biogeographic area located in the southern end of South America with notable marine flora and high endemism. Brown macroalgae, particularly Macrocystis pyrifera, dominate the coastlines and are considered critical ecosystem engineers, providing shelter, food, and reproduction sites for various species. Additionally, they are essential components used in the food industry and biomedicine due to their lipids, amino acids, and fiber content. In this study, we determined the fatty acid content in different thallus structures (holdfast, stipes and fronds) of Macrocystis pyrifera collected in Rinconada Bulnes (53°35ʼ47.76” S; 70°56ʼ08.52” W) in the spring of 2021. The stipes had a highest total lipid content (3.73%) than the fronds (2.74%). The fatty acid profile showed higher values of monounsaturated fatty acids in the stipe (Ʃ 43.0%) and holdfast (Ʃ 41.7%), while fronds displayed higher values of polyunsaturated fatty acids (Ʃ 32.4%). This study provides insights into the nutritional and biomedical potential of M. pyrifera and highlights the importance of understanding the distribution of fatty acids in different thallus structures.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Fatty acid composition of different structures in Macrocystis pyrifera (L.) C. Agardh from the sub-Antarctic Magellan Ecoregion: nutritional and biomedical potential

Méndez

Rivero

Bahamonde

et al. 2023

Preprint

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“…Frontiers in Environmental Science frontiersin.org Digalactosyldiacylglycerol (DGDG) was found to be the only polar lipid with C16:2 in U. lactuca from the Adriatic and Sea of Japan making this fatty acid a possible biomarker for DGDG content variations (Kostetsky et al, 2018). Similarly, although not exclusive from this lipid class, C18:2 was found mostly present in DGDG in U. lactuca (Barkina et al, 2020). The galactolipids DGDG and monogalatosyldiacylglycerol (MGDG) are the most abundant lipids in plant thylakoid membranes and they are reported to be responsible for photosystem stabilization and electron modulation at the quinone level (Sakurai et al, 2007;Kern and Guskov, 2011;Mizusawa and Wada, 2012).…”

Section: Discussionmentioning

confidence: 99%

Fluoxetine induces photochemistry-derived oxidative stress on Ulva lactuca

Feijão

Carvalho

Duarte

et al. 2022

Front. Environ. Sci.

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Emerging pollutants impose a high degree of stress on marine ecosystems, compromising valuable resources, the planet and human health. Pharmaceutical residues often reach marine ecosystems, and their input is directly related to human activities. Fluoxetine is an antidepressant, and one of the most prescribed selective serotonin reuptake inhibitors globally and has been detected in aquatic ecosystems in concentrations up to 40 μg L−1. The present study aims to evaluate the impact of fluoxetine ecotoxicity on the photochemistry, energy metabolism and enzyme activity of Ulva lactuca exposed to environmentally relevant concentrations (0.3, 0.6, 20, 40, and 80 μg L−1). Exogenous fluoxetine exposure induced negative impacts on U. lactuca photochemistry, namely on photosystem II antennae grouping and energy fluxes. These impacts included increased oxidative stress and elevated enzymatic activity of ascorbate peroxidase and glutathione reductase. Lipid content increased and the altered levels of key fatty acids such as hexadecadienoic (C16:2) and linoleic (C18:2) acids revealed strong correlations with fluoxetine concentrations tested. Multivariate analyses reinforced the oxidative stress and chlorophyll a fluorescence-derived traits as efficient biomarkers for future toxicology studies.

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“…However, under natural conditions, in addition to temperature, other environmental factors, such as light, salinity and the concentration of nitrogen and phosphorus, can influence the lipid composition. Recently, the influence of temperature on the molecular composition of glycolipids and betaine lipids of Ulva lactuca and Saccharina japonica cultivated under controlled conditions has been shown, which excludes the influence of other environmental factors [ 13 , 14 ]. Nevertheless, there is no analysis of the molecular species of phospholipids in these works.…”

Section: Introductionmentioning

confidence: 99%

Effect of Temperature and Light Intensity on the Polar Lipidome of Endophytic Brown Algae Streblonema corymbiferum and Streblonema sp. In Vitro

2022

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The effect of temperature and light intensity on the polar lipidome of endophytic brown algae Streblonema corymbiferum and Streblonema sp. in vitro was investigated. More than 460 molecular species have been identified in four glycoglycerolipids classes, five phosphoglycerolipids classes and one betaine lipid class. The lipids glucuronosyldiacylglycerol and diacylglyceryl-N,N,N-trimethyl-homoserine were found in the algae of the order Ectocarpales for the first time. A decrease in cultivation temperature led to an increase in the unsaturation level in all classes of polar lipids. Thus, at low temperatures, the content of 18:4/18:4 monogalactosyldiacylglycerol (MGDG), 20:5/18:4 digalactosyldiacylglycerol (DGDG), 18:3/16:0 sulfoquinovosyldiacylglycerol (SQDG), 18:3/18:3 and 18:3/18:4 phosphatidylglycerol (PG), 20:4/20:5 and 20:5/20:5 phosphatidylethanolamine (PE), 14:0/20:5, 16:0/20:5 and 20:5/20:5 phosphatidylcholine (PC), 20:5/20:4 phosphatidylhydroxyethylglycine and 18:1/18:2 DGTS increased. At high temperatures, an increase in the content of chloroplast-derived MGDG, DGDG and PG was observed. Both low and high light intensities caused an increase in 20:5/18:3 MGDG and 18:3/16:1 PG. At low light intensity, the content of DGDG with fatty acid (FA) 18:3 increased, and at high light intensity, it was with FA 20:5. The molecular species composition of extraplastid lipids also showed a dependence on light intensity. Thus, the content of PC and PE species with C20-polyunsaturated FA at both sn-positions, 18:1/18:1 DGTS and 16:0/18:1 phosphatidylinositol increased. Low light intensity induced a significant increase in the content of chloroplast-derived 18:1/16:1 phosphatidylethanolamine.

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Influence of Warm-Acclimation Rate on Polar Lipids of Ulva lactuca

Cited by 9 publications

References 24 publications

Fatty acid composition of different structures in Macrocystis pyrifera (L.) C. Agardh from the sub-Antarctic Magellan Ecoregion: nutritional and biomedical potential

Fatty acid composition of different structures in Macrocystis pyrifera (L.) C. Agardh from the sub-Antarctic Magellan Ecoregion: nutritional and biomedical potential

Fluoxetine induces photochemistry-derived oxidative stress on Ulva lactuca

Effect of Temperature and Light Intensity on the Polar Lipidome of Endophytic Brown Algae Streblonema corymbiferum and Streblonema sp. In Vitro

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