Distribution of С4 Plants of the Chenopodiaceae Family According to the Salinization Profile of the Kyzylkum Desert
- Authors: Voronin P.Y.1, Shuyskaya E.V.1, Toderich K.N.2,3, Rajabov T.F.4, Ronzhina D.A.5,6, Ivanova L.A.5,6
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Affiliations:
- Timiryazev Institute of Plant Physiology, Russian Academy of Science
- International Platform for Dryland Research and Education, Tottori University
- International Center for Biosaline Agriculture for Central Asia and Caucasus
- Samarkand State University
- Botanical Garden, Ural Branch, Russian Academy of Sciences
- Tyumen State University
- Issue: Vol 66, No 3 (2019)
- Pages: 375-383
- Section: Research Papers
- URL: https://journals.rcsi.science/1021-4437/article/view/180465
- DOI: https://doi.org/10.1134/S1021443719030166
- ID: 180465
Cite item
Abstract
The peculiarities of the prevalence of C4 species in the relief of the Kyzylkum Desert were revealed based on botanical and geographical descriptions. In the lowlands (0–50 m above sea level), a predominance of C3 halophytes was found, while halophytes with C4 photosynthesis began to predominate at medium elevations (50–200 m above sea level). Above 200 m above sea level, a sharp decline in the contribution of halophilic flora to the biodiversity of native vegetation was detected. Thus, the penetration of halophytes above 200 m is limited by the presence of C4 photosynthesis as an adaptive characteristic to soil desalinization. A decrease in the succulence of leaf morphology in edificatory perennial plants of the Kyzylkum Desert (tamarix, saxaul, and camel thorn) was noted with a decrease in soil salinization. In the summer dry period, C4 photosynthesis provides a competitive advantage over C3 halophytes for survival on desalinated soils of elevated parts of the terrain desiccated during the summer. It was concluded that the acquisition of C4 photosynthesis by halophilic species is an adaptation of the photosynthesis of halophilic flora to seasonal desalinization and drying of the soil of the elevated parts of the Kyzylkum Desert.
About the authors
P. Yu. Voronin
Timiryazev Institute of Plant Physiology, Russian Academy of Science
Author for correspondence.
Email: pavel@ippras.ru
Russian Federation, Moscow, 127276
E. V. Shuyskaya
Timiryazev Institute of Plant Physiology, Russian Academy of Science
Email: pavel@ippras.ru
Russian Federation, Moscow, 127276
K. N. Toderich
International Platform for Dryland Research and Education, Tottori University; International Center for Biosaline Agriculture for Central Asia and Caucasus
Email: pavel@ippras.ru
Japan, Tottori, 1390; Tashkent, 4564
T. F. Rajabov
Samarkand State University
Email: pavel@ippras.ru
Uzbekistan, Samarkand, 140104
D. A. Ronzhina
Botanical Garden, Ural Branch, Russian Academy of Sciences; Tyumen State University
Email: pavel@ippras.ru
Russian Federation, Ekaterinburg, 620130; Tyumen, 625003
L. A. Ivanova
Botanical Garden, Ural Branch, Russian Academy of Sciences; Tyumen State University
Email: pavel@ippras.ru
Russian Federation, Ekaterinburg, 620130; Tyumen, 625003