Role of tonoplast microdomains in plant cell protection against osmotic stress

Озолина, Н. В.; Капустина, И. С.; Gurina, V.V.; Nurminsky, V. N.

doi:10.1007/s00425-021-03800-3

Cited by 9 publications

(6 citation statements)

References 28 publications

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“…The capability to respond to stress factors (possibly by varying the lipid content of DRMs) represented a very important property of plant cells. According to the literature data, DRMs of plant cells are able to respond, for example, to abiotic types of stress (temperature stress [ 10 , 16 , 29 ], osmotic stress [ 16 , 24 , 25 ], or the action of some pathogens [ 25 ]).…”

Section: Discussionmentioning

confidence: 99%

“…DRMs were supposed to form so-called functional platforms, considered to be likely needed in the regulation of some special cellular functions [ 12 , 21 ]. DRMs interpreted as rafts were discussed as being involved in such cellular processes as signaling, trafficking [ 22 , 23 ] and regulatory processes [ 23 , 24 , 25 ], in the transport of nutrients [ 26 ] and in vesicular transport [ 4 ], etc.…”

Section: Introductionmentioning

confidence: 99%

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Detergent-Resistant Membranes in Chloroplasts and Mitochondria of the Halophyte Salicornia perennans under Salt Stress

Розенцвет

Nurminsky

Нестеров

et al. 2023

Plants

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Halophytes represent important models for studying the key mechanisms of salt tolerance. One approach to the development of new knowledge of salt tolerance is to study the properties of detergent-resistant membranes (DRMs). In this work, the lipid profiles of DRMs of chloroplasts and mitochondria of euhalophyte Salicornia perennans Willd, before and after their exposure to shock concentrations of NaCl, have been investigated. We found that DRMs of chloroplasts are enriched in cerebrosides (CERs) and that sterols (STs) dominate the mass of mitochondrial DRMs. Also, it has been proven that (i) the impact of salinity provokes obvious growth in the content of CERs in DRMs of chloroplasts; (ii) the content of STs in DRMs of chloroplasts does not change under the influence of NaCl; (iii) salinity also causes some elevation in the content of monounsaturated and saturated fatty acids (FAs). Considering the fact that DRMs represent integral parts of both chloroplast and mitochondrial membranes, the authors have come to the conclusion that the cells of euhalophyte S. perennans, under the impact of salinity, presumes the choice (by the cell) of some specific composition of lipids and FAs in the membrane. This may be considered as a specific protection reaction of the plant cell against salinity.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Detergent-Resistant Membranes in Chloroplasts and Mitochondria of the Halophyte Salicornia perennans under Salt Stress

Розенцвет

Nurminsky

Нестеров

et al. 2023

Plants

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“…Under osmotic stress, the content of unbound water in the cell changes. The inflow and retention of water inside a cell largely depend on the vacuolar membrane [61]. The traumatic damage of shoots (mowing) triggers various regeneration mechanisms in plants, which leads to wound healing and restoration of lost aboveground plant organs through the growth of dormant (axillary) buds of the perennial grasses.…”

Section: Discussionmentioning

confidence: 99%

Preliminary Estimation of Nutritional Quality of the Meat, Liver, and Fat of the Indigenous Yakutian Cattle Based on Their Fatty Acid Profiles

Makhutova,

Nokhsorov,

Stoyanov

et al. 2023

Foods

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The Yakutian cattle is an indigenous Siberian cattle breed living in an extremely cold climate in some parts of Yakutia. There are only a few thousand animals of this breed, and the conservation of the Yakutian cattle is embedded in the international agenda. We studied the fatty acid profiles in the meat, liver, and fat of the Yakutian cattle (five individuals) of different ages and their main food resource–pasture plants. The fatty acid profile of the tissues of the Yakutian cattle differed from that of pasture plants: 16:0, 18:2n–6, and 18:3n–3 dominated in the pasture plants; 16:0, 18:0, 18:1n–9, 18:2n–6, 20:4n–6, 20:5n–3, and 22:5n–3 dominated in the meat and liver; and 16:0, 18:0, and 18:1n–9 dominated in the fat. The fatty acid composition of food products is related to the risk of developing cardiovascular disease (CVD). The meat and liver of the Yakutian cattle are health food products that contribute to decreasing the risk of developing CVD because of their rather high content of eicosapentaenoic and docosahexaenoic fatty acids, optimal n–6/n–3 and polyunsaturated fatty acids/saturated fatty acids ratios, low values of indexes of atherogenicity and thrombogenicity, and high values of hypocholesterolemic/hypercholesterolemic and health-promoting indexes. The results of the present study support the importance of preserving this valuable cattle breed. Actions should be taken to increase their population while retaining their contemporary housing and feeding conditions.

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“…The tonoplast has a selective permeability; it actively participates in the transport of metabolites required for cellular osmoregulation, the regulation of cytosolic pH and ion balance, and the transduction of signals of various origins; the tonoplast is also actively involved in protecting cells against abiotic stress. The majority of these functions are strongly associated with tonoplast lipids [ 28 ]. The vacuolar membrane determines the specificity of plant cells; it is actively involved in the intracellular redistribution of substances and also acts similarly to lysosomes.…”

Section: Structure and Functions Of Membranes In Various Eukaryotic C...mentioning

confidence: 99%

“…It has been commonly assumed that all the other membranes in many different organisms are structured according to PM principles [ 12 , 23 ]. Therefore, the diverse membranes of many cell organelles of all eukaryotes and, in particular, those of plant cells have not been widely studied [ 24 , 25 , 26 , 27 , 28 , 29 , 30 ]. In 2014, Nicolson modified the original model, naming it the “biological membrane structure model with a liquid mosaic” [ 13 ].…”

Section: Introductionmentioning

confidence: 99%

Eukaryotic Cell Membranes: Structure, Composition, Research Methods and Computational Modelling

Жуков

Popov

2023

IJMS

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This paper deals with the problems encountered in the study of eukaryotic cell membranes. A discussion on the structure and composition of membranes, lateral heterogeneity of membranes, lipid raft formation, and involvement of actin and cytoskeleton networks in the maintenance of membrane structure is included. Modern methods for the study of membranes and their constituent domains are discussed. Various simplified models of biomembranes and lipid rafts are presented. Computer modelling is considered as one of the most important methods. This is stated that from the study of the plasma membrane structure, it is desirable to proceed to the diverse membranes of all organelles of the cell. The qualitative composition and molar content of individual classes of polar lipids, free sterols and proteins in each of these membranes must be considered. A program to create an open access electronic database including results obtained from the membrane modelling of individual cell organelles and the key sites of the membranes, as well as models of individual molecules composing the membranes, has been proposed.

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Role of tonoplast microdomains in plant cell protection against osmotic stress

Cited by 9 publications

References 28 publications

Detergent-Resistant Membranes in Chloroplasts and Mitochondria of the Halophyte Salicornia perennans under Salt Stress

Detergent-Resistant Membranes in Chloroplasts and Mitochondria of the Halophyte Salicornia perennans under Salt Stress

Preliminary Estimation of Nutritional Quality of the Meat, Liver, and Fat of the Indigenous Yakutian Cattle Based on Their Fatty Acid Profiles

Eukaryotic Cell Membranes: Structure, Composition, Research Methods and Computational Modelling

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