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ISSN 2063-5346
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CARBOHYDRATE COMPOSITION AT DIFFERENT SALT CONCENTRATIONS OF HALOPHITES OF THE CHENOPODIACEAE FAMILY

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Khalbekova Х.U.
» doi: 10.31838/ecb/2023.12.s3.346

Abstract

Our study is aimed at studying the content of soluble sugars in plants in a comparative aspect (under Aralkum and in vitro conditions), indicating their contribution to the osmotic pressure of organ cells. Thus, to demonstrate the participation of soluble carbohydrates in reactions that provide stability in stressful situations. A protective mechanism that allows maintaining the water status of halophyte cells under conditions of high salinity is the accumulation of low molecular weight compounds: amino acids (proline, alanine, etc.), carbohydrates, etc. So, the obtained data of 3 species of wild-growing halophytes, differing in the type of regulation of salt metabolism: salt-accumulating - salt-releasing, indicate that the accumulation of sugars in plant organs depends both on the genetic characteristics of the studied species and the level of soil salinity. The division of plants according to the halotolerant trait has a clear biochemical basis. Thus, a higher total sugar content is characteristic of Climacoptera intricata, Suaeda altissima (hyperhalophytes), compared to Atriplex aucheri (crinohalophyte). Our results confirm the data on the formation of a community with the participation of euhalophytes on soils with higher salinity (3–4%) than the crynohalophyte (Atriplex aucheri). The study makes it possible to identify the functional groups of plants and predict their response to global and local environmental changes.

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