ANATOMICAL STRUCTURE OF VEGETATIVE ORGANS OF NITRARIA SCHOBERI L. (SULAKSKY POPULATION, DAGESTAN)
https://doi.org/10.18470/1992-1098-2018-3-42-54
Abstract
Aim. The article is devoted to the study of the anatomical structure of the vegetative organs of Nitraria schoberi L. growing on saline soils in the Caspian lowland of Dagestan and to the analysis of some of its features in relation with its habitat. Methods. Were studied 10 samples of leaves, stems and roots of N. schoberi. Preparations of temporary specimen as well as the description of tissues and cells of vegetative organs of N. schoberi were carried out in accordance with conventional methods. Results. The main tissues of leaf, stem and root of N. schoberi are described; their quantitative estimation is given; ecologically significant adaptive anatomical signs are also identified. Conclusion. The presence of a thin cuticle, dense mesophyll, water-preserving tissue, large stomata and deposition of excess salts in containers to maintain high osmotic pressure of the protoplasm is associated with the phreatophytic nature of N. schoberi which allows the species grow on saline soils at high air temperatures. The increase of the proportion of vessels in the xylem of shoots with age in comparison with the cells of the libriform is associated with an increase in water demand for successful photosynthetic processes and thermoregulation in the conditions of the Caspian lowland. The obtained data can be used in a comparative evaluation with other ecotypes of N. schoberi and of the genus Nitraria.
About the Authors
Zagirbeg M. Asadulaev
Dagestan State University, Makhachkala; Mountain Botanical Garden at Daghestan Scientific Centre of RAS, Makhachkala
Russian Federation
Competing Interests: The authors declare no conflict of interests
Russian Federation
Doctor of Biology, Professor Department of Ecology, Dagestan State University; director Mountain Botanical Garden at Daghestan Scientific Centre of Russian Academy of Sciences
Competing Interests: The authors declare no conflict of interests
Zulfira R. Ramazanova
Mountain Botanical Garden at Daghestan Scientific Centre of RAS, Makhachkala; Dagestan State Pedagogical University, Makhachkala
Russian Federation
Competing Interests: The authors declare no conflict of interests
Russian Federation
Candidate of Biology, Senior Lecturer, Life Safety Department of the Dagestan State Pedagogical University
367003, Makhachkala, Yaragskogo str., 57; tel. 8 (903) 481-29-48
Competing Interests: The authors declare no conflict of interests
Magomed G. Gadzhiataev
Mountain Botanical Garden at Daghestan Scientific Centre of RAS, Makhachkala
Russian Federation
Competing Interests: The authors declare no conflict of interests
Russian Federation
junior researcher of Laboratory introduction and genetic resources of woody plants of Federal state budgetary institution of science Mountain botanical garden of the Dagestan scientific center, Russian Academy of Sciences
Competing Interests: The authors declare no conflict of interests
Gasan N. Gasanov
Dagestan State University, Makhachkala
Russian Federation
Competing Interests: The authors declare no conflict of interests
Russian Federation
Professor of the Department of Recreational Geography and Sustainable Development, Doctor of Chemical Sciences, Academician of REA., Institute of Ecology and Sustainable Development, Dagestan State University
Competing Interests: The authors declare no conflict of interests
Aytemir A. Aytemirov
Dagestan State University, Makhachkala
Russian Federation
Competing Interests: The authors declare no conflict of interests
Russian Federation
Professor of the Department of Recreational Geography and Sustainable Development, Doctor of Chemical Sciences, Academician of REA., Institute of Ecology and Sustainable Development, Dagestan State University
Competing Interests: The authors declare no conflict of interests
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For citations:
Asadulaev Z.M., Ramazanova Z.R., Gadzhiataev M.G., Gasanov G.N., Aytemirov A.A. ANATOMICAL STRUCTURE OF VEGETATIVE ORGANS OF NITRARIA SCHOBERI L. (SULAKSKY POPULATION, DAGESTAN). South of Russia: ecology, development. 2018;13(3):42-54. (In Russ.) https://doi.org/10.18470/1992-1098-2018-3-42-54
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