Жарияланымдар / Публикации
Постоянный URI для этого сообществаhttps://cris.qyzpu.kz/handle/123456789/2
Просмотр
2 результаты
Результаты поиска
- Некоторые метрики заблокированы вашиминастройками согласия
Тип записи:Публикация, Comparative phytochemical and GC-MS analysis of leaves, stems, and roots of Euphorbia yaroslavii Poljakov.(Instituto Internacional de Ecologia (Brazil), 2026-01-01); ; ; Euphorbia yaroslavii Poljakov. is a rare plant species endemic to Kazakhstan whose phytochemical composition has remained largely unexplored. This study presents the first organ-specific phytochemical and GC-MS characterization of the leaves, stems, and roots of this species. Quantitative analyses indicated pronounced metabolic differentiation among plant organs. Roots were characterized by high contents of total phenolics (58.2 ± 2.5 mg GAE/g DW), coumarins (2.48%), and mineral components (total ash 13.22%), while leaves exhibited the highest tannin content (2.35%). The maximum flavonoid content was observed in roots (0.27%), whereas stems contained the highest level of ascorbic acid (0.70 mg/g DW). GC-MS profiling tentatively identified 68 compounds in leaf extracts, 65 in stem extracts, and 39 in root extracts. Root extracts were dominated by fatty acids and triterpenoid-sterol constituents, including octadecanoic acid (18.9%), hexadecanoic acid (17.5%), β-amyrin (5.2%), and lanosterol (4.9%). Overall, the results indicate organ-specific metabolic specialization in Euphorbia yaroslavii Poljakov. and provide a reliable phytochemical baseline for future bioactivity-oriented and conservation-related studies. - Некоторые метрики заблокированы вашиминастройками согласия
Тип записи:Публикация, Adaptive morpho-anatomical traits of Euphorbia yaroslavii populations in the Zailiysky Alatau, Kazakhstan(MBI & UNS Solo, 2026-07-14); Abstract. Turgara Z, Ametov A, Kenesbay A, Imanova E, Sypabekkyzy G, Osmonali B. 2026. Adaptive morpho-anatomical traits of Euphorbia yaroslavii populations in the Zailiysky Alatau, Kazakhstan. Biodiversitas 27 (6): d270604. https://doi.org/10.13057/biodiv/d270604. Euphorbia yaroslavii is a narrow-range endemic of the northern Tien Shan, restricted to foothill steppe and clayey habitats of the Zailiysky Alatau, Kazakhstan and is insufficiently studied in terms of morphological and anatomical variability. This study aimed to evaluate interpopulation variation in morphological, anatomical, and seed micromorphological traits of E. yaroslavii under contrasting ecological conditions. Three spatially isolated populations were analyzed using a comparative approach that included morphometric measurements of vegetative and generative organs, anatomical investigation of leaf, stem, and root structures, and scanning electron microscopy of seed surfaces. The results showed pronounced interpopulation differentiation mainly in vegetative morphology and anatomical structure. The greatest variability was recorded in leaf thickness, mesophyll organization, and development of conductive tissues, reflecting habitat-related environmental differences. In contrast, generative traits, including cyathium and seed dimensions, were relatively stable. ANOVA confirmed significant differences (p<0.05) in most vegetative and anatomical parameters, whereas reproductive traits showed no significant differences. Correlation analysis revealed coordinated variation among structural traits of different organs. Population differentiation in E. yaroslavii is primarily expressed in vegetative and anatomical features, while reproductive traits remain stable. These findings provide a quantitative framework for understanding adaptive variation and support population-based conservation strategies for this endemic species.Цитирования (OpenAlex) 1