Academic Journal
ADAPTIVE REACTIONS OF WHEAT PLANTS TO DROUGHT CONDITIONS UNDER THE INFLUENCE OF SALICYLIC ACID ; АДАПТИВНІ РЕАКЦІЇ РОСЛИН ПШЕНИЦІ ДО УМОВ ПОСУХИ ЗА ВПЛИВУ САЛІЦИЛОВОЇ КИСЛОТИ
| العنوان: | ADAPTIVE REACTIONS OF WHEAT PLANTS TO DROUGHT CONDITIONS UNDER THE INFLUENCE OF SALICYLIC ACID ; АДАПТИВНІ РЕАКЦІЇ РОСЛИН ПШЕНИЦІ ДО УМОВ ПОСУХИ ЗА ВПЛИВУ САЛІЦИЛОВОЇ КИСЛОТИ |
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| المؤلفون: | Kobyletska, Myroslava, Velychko, Oksana, Mamchur, Oksana |
| المصدر: | Біологічні студії / Studia Biologica; Том 17, № 4 (2023); 117-132 ; 2311-0783 ; 1996-4536 ; 10.30970/sbi.1704 |
| بيانات النشر: | Львівський національний університет імені Івана Франка |
| سنة النشر: | 2023 |
| مصطلحات موضوعية: | Biology, Plant physiology, adaptation, drought stress, Triticum aestivum L., TBA-active products, photosynthetic pigments, chlorophyllase, carbohydrates, адаптація, посуха, ТБК-активні продукти, фотосинтетичні пігменти, хлорофілаза, вуглеводи |
| الوصف: | Background. Drought is one of the most important factors affecting plant growth and productivity. The study addressed the perspectives of usage of salicylic acid, a stress protective compound, to increase the adaptive potential of Triticum aestivum L. plants under drought conditions. The effect of salicylic acid on the photosynthetic apparatus of wheat plants under the conditions of drought with a subsequent gradual resumption of watering was investigated. Materials and methods. Plants of the Podolyanka variety of wheat (Triticum aestivum L.) were the objects of our study. Seeds were pre-soaked in a solution of salicylic acid (50 mM) for 3 h. First seeds germinated in an incubator, and on the 3rd day of growth were transplanted into plastic pots (d = 14 cm). Plants were grown on soil substrate, whose humidity was maintained at 60 % of full moisture capacity – the optimal water supply. The model of drought was created by the simultaneous cessation of irrigation (30 % of soil moisture capacity) for 12 days. Upon termination of the drought, soil moisture in the pots was adjusted to 60 % of its full capacity. The control plants were grown from the seeds not treated with salicylic acid under conditions of optimal water supply (60 %). Study samples were taken from the shoots of wheat on the 7th, 9th and 12th days of the drought period and on the first day after the resumption of irrigation (14 days). The concentrations of TBA-active products, chlorophyll, carotenoids, glucose, sucrose and chlorophyllase activity were determined. Results. The influence of salicylic acid on the content of chlorophyll, carotenoids and TBA-active products along with chlorophyllase activity in shoots of wheat under the drought conditions on the early stages of ontogenesis was determined. It was found that both drought and salicylic acid modify the content of chlorophyll and carotenoids in the shoots of Triticum aestivum L., apparently by altering their metabolism. Chlorophyllase plays an important role in the adaptation of photosynthetic ... |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/pdf |
| اللغة: | English |
| Relation: | http://publications.lnu.edu.ua/journals/index.php/biology/article/view/3719/1637; http://publications.lnu.edu.ua/journals/index.php/biology/article/view/3719 |
| DOI: | 10.30970/sbi.1704.749 |
| الاتاحة: | http://publications.lnu.edu.ua/journals/index.php/biology/article/view/3719 https://doi.org/10.30970/sbi.1704.749 |
| Rights: | Copyright (c) 2023 Myroslava Kobyletska, Oksana Velychko, Oksana Mamchur ; http://creativecommons.org/licenses/by/4.0 |
| رقم الانضمام: | edsbas.99705047 |
| قاعدة البيانات: | BASE |
| DOI: | 10.30970/sbi.1704.749 |
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