Fatty acid composition of lipids in vegetative organs of the halophyte Suaeda altissima under different levels of salinity

Цыдендамбаев, В. Д.; Иванова, Т. В.; Халилова, Л. А.; Kurkova, E. B.; Myasoedov, N. A.; Balnokin, Yu. V.

doi:10.1134/s1021443713050142

Cited by 38 publications

(25 citation statements)

References 32 publications

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“…Adopted from Ruelland et al (2014) with modifications. DGK, diacylglycerol kinase; NPC, non-specific phospholipase C; PAP, phosphatidic acid phosphatase; PI4K, phosphatidylinositol 4-kinase; PI4P5K, phosphatidylinositol-4-phosphate 5-kinase; PLA, phospholipase A; PLD, phospholipase D when plants were grown under 1 mM NaCl (Tsydendambaev et al, 2013). Salt treatment resulted also in increased the PM total lipid of salt adapted cells of the cyanobacterium Anacystis nidulans (Molitor et al, 1990).…”

Section: The Pm Total Lipidsmentioning

confidence: 93%

“…Further evidence is provided that the PM fluidity and degree of unsaturation of fatty acids in the PM of salt tolerant yeast were decreased in the presence of 15 % NaCl in the culture medium (Hosono, 1992). The halophyte vegetative organs of Suaeda altissima treated with 250 mM NaCl had induced fatty acid saturation and elongation of their chain, which was considered as an adaptive response to reduce membrane permeability for ions under salt imposition (Tsydendambaev et al, 2013). Moreover, membrane polyunsaturated fatty acids as well as total fatty acids were decreased whereas saturated fatty acids were increased in borage leaves under high salinity, which was considered as an adaptation to salinity (Jaffel-Hamza et al, 2013).…”

Section: The Pm Fatty Acidsmentioning

confidence: 95%

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Role of the Plasma Membrane in Saline Conditions: Lipids and Proteins

2015

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The PM is believed to be one facet of the cellular mechanisms involved in adaptation to saline conditions. Alterations in the PM components in response to salinity are therefore anticipated to contribute to plant salt tolerance. The review provides a comprehensive overview of the recent findings describing the crucial roles of the PM components in plant acclimation to salt stress. The responses of the PM proteins and lipids to salinity in contrasting species/cultivars were therefore discussed. The relationship between alterations in the lipids and proteins of the PM and tolerance to salt stress is also addressed. Several lines of evidence were presented demonstrating correlation of modifying the PM composition with adaptation of plants to high salinity. Even if contradictory results have been observed, the roles of the PM lipids and proteins appeared to be of great importance for tolerance to high salinity. Despite the promising results, more research should be carried out at the molecular level to further evaluate the roles of some of the PM components in salt tolerance.

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Section: The Pm Total Lipidsmentioning

confidence: 93%

Section: The Pm Fatty Acidsmentioning

confidence: 95%

Role of the Plasma Membrane in Saline Conditions: Lipids and Proteins

2015

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“…The common data might be explained by the fact that lower temperatures stimulate the expression of unsaturated fatty acids to help in maintaining the membrane fluidity and functions [41]. On the other hand, an elevation in temperature is accompanied by an increase in the saturated FA content in order to preserve the integrity of the algal cell membrane [43]. Respectively, we can conclude from our findings that the strain behaves differently at different temperatures for culture.…”

Section: Effect Of Temperature Variations On Lipid Quantity Productimentioning

confidence: 59%

Sustainable Production of Nannochloris atomus Biomass Towards Biodiesel Production

et al. 2020

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Nannochloris atomus (QUCCCM31) is a local marine microalga showing potential to serve as renewable feedstock for biodiesel production. The investigation of the impact of temperature variation and nitrogen concentrations on the biomass and lipid productivities evidenced that biomass productivity increased with the temperature to reach an optimum of 195 mgL−1 d−1 at 30 °C. Similarly, the lipid content was strongly influenced by the elevation of temperature; indeed, it increased up to ~3 folds when the temperature increased from 20 to 40 °C. When both stresses were combined, triacylglycerols and lipid productivity reached a maximum of 45% and 88 mgL−1 d−1, respectively at 40 °C. Cultures under high temperatures along with Nitrogen-Depleted (ND) favored the synthesis of Fatty Acids Methyl Ester (FAMEs) suitable for high quality biodiesel production, whereas cultures conducted at low temperature coupled with Nitrogen-Limited (NL) led to a production of polyunsaturated fatty acids (PUFAs). Our results support the feasibility of cultivating the thermotolerant isolate QUCCCM31 year-round to meet the sustainability challenges of algal biomass production by growing under temperature and nitrogen variations. The presence of omega 3 and 9 fatty acids as valuable co-products will help in reducing the total process cost via biorefinery.

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“…To extract lipids, isopropanol was separated through a Schott glass filter into a 250 ml volumetric flask and plant material was homogenized in a porcelain mortar and extracted as previously described with slight modifications . Lipids were extracted three times sequentially in chloroform/methanol/H 2 O (30:20:1.7, by vol.)…”

Section: Methodsmentioning

confidence: 99%

“…Lipids play a particularly significant role in adapting to low‐ and high‐temperature stress, maintaining the level of cell membrane fluidity, as mountain ecosystems are characterized by drastic temperature changes during the diurnal cycle. Specific features of lipid FA composition may contribute to plant tolerance to dehydration, salt stress, as well as biotic environmental factors . In mountain ecosystems, plants can be exposed to several stressors at the same time, and the level of this exposure is consistent with altitudinal zonation.…”

Section: Introductionmentioning

confidence: 99%

Polyunsaturated and Very‐Long‐Chain Fatty Acids Are Involved in the Adaptation of Maloideae (Rosaceae) to Combined Stress in the Mountains

Воронков

Иванова

Kumachova

et al. 2020

Chemistry & Biodiversity

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One of the mechanisms of plant adaptation to combined stress under conditions of altitudinal zonation is changing the lipid fatty acid (FA) composition. The main changes in the FA composition occurred in the outer cell layers of the pericarp, but not in the parenchyma. Adaptation was found to be species-specific. In Cydonia oblonga MILL. and Malus domestica BORKH., the ratio of polyunsaturated 18:2 and 18:3 lipid FAs changed with increasing height, while a constitutive level of the unsaturation index (UI) and low contents of very-long-chain fatty acids (VLCFAs) were maintained. Mespilus germanica L. was characterized by a higher level of VLCFAs due to the high content of 20:0. The sum of VLCFAs in medlar increased by up to 16 % with changing altitude, which was accompanied by the changes in the ultrastructure of chloroplasts and a noticeable decrease in the UI. We attribute the differences in the adaptive strategies in C. oblonga, M. domestica and M. germanica to specific structural features of the pericarp peel. Despite different adaptation mechanisms, the studied species can grow equally successfully at the altitudes from 300 to 1200 m. Figure 4. Cross sections of the pericarps of Cydonia oblonga (a), Malus domestica (b) and Mespilus germanica (c). '*' -cuticle; white arrowheads -epidermis; black arrowheads -hypodermis; white arrows -cork; black arrows -phellogen, 'À ' -phelloderm; ' + 'parenchyma. Bar = 20 μm.

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Fatty acid composition of lipids in vegetative organs of the halophyte Suaeda altissima under different levels of salinity

Cited by 38 publications

References 32 publications

Role of the Plasma Membrane in Saline Conditions: Lipids and Proteins

Role of the Plasma Membrane in Saline Conditions: Lipids and Proteins

Sustainable Production of Nannochloris atomus Biomass Towards Biodiesel Production

Polyunsaturated and Very‐Long‐Chain Fatty Acids Are Involved in the Adaptation of Maloideae (Rosaceae) to Combined Stress in the Mountains

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