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Comparison of the functions of plasma membrane and vacuolar membrane lipids in plant cell protection against hyperosmotic stress

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Abstract

Main conclusion

The comparison of the changes of the lipid content in plant cell boundary membranes demonstrates a substantial role of the vacuolar membrane in response to hyperosmotic stress.

Abstract

Comparison of variations in the lipid content of plant cell boundary membranes (vacuolar and plasma membranes) isolated from beet root tissues (Beta vulgaris L.) was conducted after the effect of hyperosmotic stress. Both types of membranes participate in the formation of protective mechanisms, but the role of the vacuolar membrane was considered as more essential. This conclusion was connected with more significant adaptive variations in the content and composition of sterols and fatty acids in the vacuolar membrane (although some of the adaptive variations, especially, in the composition of phospholipids and glycoglycerolipids were similar for both types of membranes). In the plasma membrane under hyperosmotic stress, the increase in the content of sphingolipids was noted that was not observed in the tonoplast.

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Data availability

The datasets generated during the current study are available from the corresponding author on reasonable request.

Abbreviations

DGDG:

Digalactosyldiacylglycerol

FA:

Fatty acid

GL:

Glycoglycerolipid

MGDG:

Monogalactosyldiacylglycerol

PC:

Phosphatidylcholine

PE:

Phosphatidylethanolamine

SFA:

Saturated fatty acid

USFA:

Unsaturated fatty acid

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Acknowledgements

This investigation was conducted with the use of the equipment of Central Analytical Center “Bioanalytics” of Siberian Institute of Plant Physiology and Biochemistry (Siberian Branch of Russian Academy of Sciences, Irkutsk) within the framework of the project supported by state budget financing (state registration number 122041100052-0).

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Correspondence to Natalia V. Ozolina.

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All the authors declare no conflicts of interests.

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Communicated by Dorothea Bartels.

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Ozolina, N.V., Kapustina, I.S., Gurina, V.V. et al. Comparison of the functions of plasma membrane and vacuolar membrane lipids in plant cell protection against hyperosmotic stress. Planta 258, 39 (2023). https://doi.org/10.1007/s00425-023-04191-3

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  • DOI: https://doi.org/10.1007/s00425-023-04191-3

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