Features of the anatomical structure of leaves depending on the high-altitude growth of apricot in Dagestan
Background. The adaptive changes during the distribution of Prunus armeniaca L. in Dagestan are important for understanding microevolution, structural and functional differentiation processes of populations along environmental gradients based on the organism’s reaction norm. They can be examined by...
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N.I. Vavilov All-Russian Institute of Plant Genetic Resources
2023-07-01
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| Series: | Труды по прикладной ботанике, генетике и селекции |
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| Online Access: | https://elpub.vir.nw.ru/jour/article/view/1590 |
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| author | D. M. Anatov Z. M. Asadulaev Z. R. Ramazanova R. M. Osmanov |
| author_facet | D. M. Anatov Z. M. Asadulaev Z. R. Ramazanova R. M. Osmanov |
| author_sort | D. M. Anatov |
| collection | DOAJ |
| description | Background. The adaptive changes during the distribution of Prunus armeniaca L. in Dagestan are important for understanding microevolution, structural and functional differentiation processes of populations along environmental gradients based on the organism’s reaction norm. They can be examined by studying leaf anatomical features, having ecologically differentiating significance in natural populations with contrasting growth conditions. Materials and methods. The material for the study of leaf anatomical features was taken from 7 apricot trees in 3 growing areas of Mountainous Dagestan. Comparative analysis was carried out for 42 morphological, anatomical and index parameters of the lamina and petiole. Results. The anocytic structure type of the stomatal apparatus was found in all apricot samples. The differences were determined by the degree of stomata submergence depending on the cuticle’s development. Trees from greater heights had more trichomes on the leaf’s upper side than on its underside. Significant differences between the extreme height reference points were recorded for the number of stomata, cells of the lower epidermis, layers of the sclerenchyma, and xylem thickness. Most of the traits of the lamina decreased, and those of the petiole increased with the altitude. Conclusion. The traits corresponding to the lower and upper altitude limits of P. armeniaca were identified on the basis of the lamina and petiole anatomical features. More xerophytic leaf traits were recorded for the altitudes of 550 m and 1900 m, and mesophytic ones for 1700 m and 1800 m. Endoderm thickness, number of endosperm layers, petiole index, and stomatal index were identified as stable indicators according to the reaction norm within the scope of altitudes: The differences were proved for more plastic traits (number of cells of the upper and lower epidermis, number of stomata, thickness of the lamina and cuticle, and the petiole’s long axis diameter). |
| format | Article |
| id | doaj-art-cbc86fdc5d004a1db7fd172c389b06cc |
| institution | Kabale University |
| issn | 2227-8834 2619-0982 |
| language | English |
| publishDate | 2023-07-01 |
| publisher | N.I. Vavilov All-Russian Institute of Plant Genetic Resources |
| record_format | Article |
| series | Труды по прикладной ботанике, генетике и селекции |
| spelling | doaj-art-cbc86fdc5d004a1db7fd172c389b06cc2025-02-03T08:31:16ZengN.I. Vavilov All-Russian Institute of Plant Genetic ResourcesТруды по прикладной ботанике, генетике и селекции2227-88342619-09822023-07-01184217618910.30901/2227-8834-2023-2-176-189711Features of the anatomical structure of leaves depending on the high-altitude growth of apricot in DagestanD. M. Anatov0Z. M. Asadulaev1Z. R. Ramazanova2R. M. Osmanov3Dagestan Federal Scientific Center of the Russian Academy of Sciences, Mountain Botanical GardenDagestan Federal Scientific Center of the Russian Academy of Sciences, Mountain Botanical GardenDagestan Federal Scientific Center of the Russian Academy of Sciences, Mountain Botanical Garden; Dagestan State Pedagogical UniversityDagestan Federal Scientific Center of the Russian Academy of Sciences, Mountain Botanical GardenBackground. The adaptive changes during the distribution of Prunus armeniaca L. in Dagestan are important for understanding microevolution, structural and functional differentiation processes of populations along environmental gradients based on the organism’s reaction norm. They can be examined by studying leaf anatomical features, having ecologically differentiating significance in natural populations with contrasting growth conditions. Materials and methods. The material for the study of leaf anatomical features was taken from 7 apricot trees in 3 growing areas of Mountainous Dagestan. Comparative analysis was carried out for 42 morphological, anatomical and index parameters of the lamina and petiole. Results. The anocytic structure type of the stomatal apparatus was found in all apricot samples. The differences were determined by the degree of stomata submergence depending on the cuticle’s development. Trees from greater heights had more trichomes on the leaf’s upper side than on its underside. Significant differences between the extreme height reference points were recorded for the number of stomata, cells of the lower epidermis, layers of the sclerenchyma, and xylem thickness. Most of the traits of the lamina decreased, and those of the petiole increased with the altitude. Conclusion. The traits corresponding to the lower and upper altitude limits of P. armeniaca were identified on the basis of the lamina and petiole anatomical features. More xerophytic leaf traits were recorded for the altitudes of 550 m and 1900 m, and mesophytic ones for 1700 m and 1800 m. Endoderm thickness, number of endosperm layers, petiole index, and stomatal index were identified as stable indicators according to the reaction norm within the scope of altitudes: The differences were proved for more plastic traits (number of cells of the upper and lower epidermis, number of stomata, thickness of the lamina and cuticle, and the petiole’s long axis diameter).https://elpub.vir.nw.ru/jour/article/view/1590<i>prunus armeniaca</i> l.natural cenopopulationsanatomylaminapetiolealtitude above sea level |
| spellingShingle | D. M. Anatov Z. M. Asadulaev Z. R. Ramazanova R. M. Osmanov Features of the anatomical structure of leaves depending on the high-altitude growth of apricot in Dagestan Труды по прикладной ботанике, генетике и селекции <i>prunus armeniaca</i> l. natural cenopopulations anatomy lamina petiole altitude above sea level |
| title | Features of the anatomical structure of leaves depending on the high-altitude growth of apricot in Dagestan |
| title_full | Features of the anatomical structure of leaves depending on the high-altitude growth of apricot in Dagestan |
| title_fullStr | Features of the anatomical structure of leaves depending on the high-altitude growth of apricot in Dagestan |
| title_full_unstemmed | Features of the anatomical structure of leaves depending on the high-altitude growth of apricot in Dagestan |
| title_short | Features of the anatomical structure of leaves depending on the high-altitude growth of apricot in Dagestan |
| title_sort | features of the anatomical structure of leaves depending on the high altitude growth of apricot in dagestan |
| topic | <i>prunus armeniaca</i> l. natural cenopopulations anatomy lamina petiole altitude above sea level |
| url | https://elpub.vir.nw.ru/jour/article/view/1590 |
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