Fatty Acid Composition and Thermotropic Behavior of Glycolipids and Other Membrane Lipids of Ulva lactuca (Chlorophyta) Inhabiting Different Climatic Zones

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

doi:10.3390/md16120494

Cited by 23 publications

(23 citation statements)

References 41 publications

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“…were characterized at molecular level (by LC-MS/MS). Generally, fatty acyl composition of MGDG (containing polyunsaturated C16, C18 and C20 acyl chains); SQDG (containing saturated and unsaturated C16 acyl chains); and PLs and DGTS (containing polyunsaturated C18 and C20) classes is in accordance with expected fatty acid composition of Ulva [39,48,59]. However, the differences achieved at lipid species level suggest the important role of the polar lipids MGDG, DGTS and PLs in the adaptive changes of cell membranes to environmental factors characteristic of each specific geographic origin.…”

Section: Discussionsupporting

confidence: 55%

“…The lipidome of all algal specimens surveyed yielded the identification of glycolipids (MGDG, DGDG, SQDG, and their lyso forms MGMG, DGMG, SQMG); phospholipids (PG, PC, PE, PI, and the lyso-forms LPG, LPC, and LPE); and betaine lipids (and lyso-form MGTS). These classes have been already identified in the lipidome of Ulva rigida produced on land integrated multi-trophic aquaculture system and Ulva lactuca harvested from the Adriatic Sea and the Sea of Japan [24,48,49].…”

Section: Discussionmentioning

confidence: 87%

“…However, the differences achieved at lipid species level suggest the important role of the polar lipids MGDG, DGTS and PLs in the adaptive changes of cell membranes to environmental factors characteristic of each specific geographic origin. In respect to MGDG, it is considered to be paramount for structure flexibility of thylakoids membranes when coping with temperature oscillations, specially through the adjustment of the unsaturation level of fatty acids to facilitate membrane deformation (low temperature, increased unsaturation) [48]. The unsaturation/saturation adjustments of DGTS and PC has been well reported and related with adaptative changes of Ulva spp.…”

Section: Discussionmentioning

confidence: 99%

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Site-Specific Lipidomic Signatures of Sea Lettuce (Ulva spp., Chlorophyta) Hold the Potential to Trace Their Geographic Origin

et al. 2020

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The wild harvest and aquaculture of Ulva spp. has deserved growing attention in Europe. However, the impact of geographical origin on the biochemical composition of different species and/or strains is yet to be described in detail. Hence, the present study aimed to detect the variability of the lipidome of different species and/or strains of Ulva originating from different geographic locations. We hypothesized that lipidomic signatures can be used to trace the geographic origin post-harvesting of these valuable green seaweeds. Ulva spp. was sampled from eight distinct ecosystems along the Atlantic Iberian coast and Ulva rigida was sourced from an aquaculture farm operating a land-based integrated production site. Results showed significant differences in the lipidomic profile displayed by Ulva spp. originating from different locations, namely, due to different levels of polyunsaturated betaine lipids and galactolipids; saturated betaine lipids and sulfolipids; and some phospholipid species. Overall, a set of 25 site-specific molecular lipid species provide a unique lipidomic signature for authentication and geographic origin certification of Ulva species. Present findings highlight the potential of lipidome plasticity as a proxy to fight fraudulent practices, but also to ensure quality control and prospect biomass for target bioactive compounds.

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Section: Discussionsupporting

confidence: 55%

Section: Discussionmentioning

confidence: 87%

Section: Discussionmentioning

confidence: 99%

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Site-Specific Lipidomic Signatures of Sea Lettuce (Ulva spp., Chlorophyta) Hold the Potential to Trace Their Geographic Origin

et al. 2020

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“…glycolipids can contribute to the maintenance of the highly dynamic structure of thylakoid membranes [7].…”

mentioning

confidence: 99%

“…Two articles concern microalgal metabolites such as steroid and sphingoid glycoconjugates, and a glycoprotein from a sea cucumber with interesting biological activities, respectively [5,6]. One article discusses the fatty acid composition and thermotropic behavior of glycolipids and other membrane lipids of green macrophyte Ulva lactuca [7]. Three articles cover lectin subjects [8][9][10].…”

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confidence: 99%

Marine Glycoconjugates: Trends and Perspectives

2020

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Glycoconjugates play significant roles in biological systems and are used in medicine, for example as vaccines. Glycoproteins, peptidoglycans, lipopolysaccharides, and other biopolymer glycoconjugates are responsible for cellular interactions, including cell-cell recognition and the binding of cells to the intercellular matrix. These molecules perform signal, antigenic and transport functions, and participate in the formation of receptors and other important membrane and blood constituents. Due to the negative charges of some sulfated glycoconjugates and the binding of water, they are critical for maintaining the physical status of connective tissue [1]. Low molecular weight glycoconjugates, such as triterpene and steroidal glycosides [2][3][4], glycolipids, are also well known as molecules playing important internal and exterior roles. Diverse glycoconjugates show a very wide spectrum of biological activities, including defensive, cytotoxic, antitumor, immunomodulatory, and antioxidant properties. The water environment requires high solubility for signal or anti-predatory exometabolites of marine organisms, and carbohydrate moieties provide this property. All these peculiarities explain the very wide diversity of glycoconjugates of marine origin, including those presented in the current Special Issue.Sterol and sphingolipid glycoconjugates, which are widespread, but insufficiently studied metabolites of microalgae, were discussed by Stonik and Stonik in the review article. Glycosylated sterols play important biological roles in microalgae and show different beneficial properties useful for medicine and healthy food. Dietary sterols and their glycoconjugates of microalgae enter into marine invertebrates through food chains and may be converted into 7(8)-unsaturated sterols and their derivatives, such as polyhydroxylated sterols and, probably, glycosides of starfishes and sea cucumbers. The knowledge of microalgal glycosphingolipids still remains poor, despite intensive investigations. Some of them are important for their interactions with pathogens and may induce apoptosis in microalgae. They also participate in the termination of microalgal blooms [5].In their experimental article, Galasso et al. have discussed the obtaining and properties of a water-soluble bioactive fraction isolated from the toxic dinoflagellate Alexandrium minutem. This substance is a glycoprotein with a molecular weight above 20 kDa. It demonstrates specific antiproliferative activity (IC 50 = 0.4 µg/mL) against the A549 cell line (the human lung adenocarcinoma cells). Moreover, the glycoconjugate did not reveal a cytotoxicity against human normal lung fibroblasts (WI38), but induced cell death, triggered by mitochondrial autophagy (mitophagy) in tumor cells. No mitophagic events were activated by it in normal WI38 cells [6].Kostetsky et al. from the Far East Federal University (Vladivostok, Russia) have compared the fatty acid composition and thermal transitions of membrane lipids from green macroalgae Ulva lactuca, collected in the Sea of...

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Lipid composition of coral propagules and reproductive material in coral restoration nurseries

Roper,

Matthews,

Camp

et al. 2024

Coral Reefs

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Coral restoration efforts have rapidly increased worldwide, including the development of several programmes on the Great Barrier Reef (GBR) in recent years. While many restoration programmes utilise in-water nurseries to accelerate coral biomass yields, the impact of nursery environments on propagule quality has not been examined despite the importance of coral fitness for ensuring resistant populations. Here, we investigated two fitness indicators (lipid diversity and tissue protein abundance) of Acropora millepora adults and eggs grown on coral nurseries versus native reef on the GBR, with adults assessed at two sites (Blue Lagoon and Rayban) and eggs assessed at one site (Blue Lagoon). Lipid profiles of adult colonies varied by site and origin (nursery versus wild reef), with adult nursery corals exhibiting an elevated relative abundance of storage lipids (diacylglycerols and triacylglycerols) and lipid classes responsible for regulating membrane structure (phosphatidylcholines and sterol esters), while wild corals were characterised by a greater relative abundance of fatty acids and classes involved in immunoregulation. Comparing eggs from different origins, nursery offspring were richer in energy-storing triacylglycerols, as well as ceramides and phosphatidylcholines essential for membrane structure, while wild eggs had a greater relative abundance of wax ester species also important for energy storage. No differences were found in total protein abundance (adult or eggs) or egg physical characteristics (count and size) between nursery and wild origins. Variations in lipid profiles are consistent with differences in environmental conditions between reef sites and origin (nursery versus wild), highlighting the need to consider site selection and propagation conditions when planning restoration projects. Importantly, these findings demonstrate that the lipid classes with the highest relative abundance in A. millepora nursery and wild eggs differed from those in adults from the same origin, suggesting that propagation origin is more important for driving lipid profiles in coral eggs compared to parental effects.

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Fatty Acid Composition and Thermotropic Behavior of Glycolipids and Other Membrane Lipids of Ulva lactuca (Chlorophyta) Inhabiting Different Climatic Zones

Cited by 23 publications

References 41 publications

Site-Specific Lipidomic Signatures of Sea Lettuce (Ulva spp., Chlorophyta) Hold the Potential to Trace Their Geographic Origin

Site-Specific Lipidomic Signatures of Sea Lettuce (Ulva spp., Chlorophyta) Hold the Potential to Trace Their Geographic Origin

Marine Glycoconjugates: Trends and Perspectives

Lipid composition of coral propagules and reproductive material in coral restoration nurseries

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