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0419U003292,
Кандидат біологічних наук
26-06-2019
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Adaptive reactions of lettuce plants (Lactuca sativa L.) under the action of cadmium ions and metal nanoparticles
Khomenko Iryna М.,
popup.head Taran Nataliia Yu.
popup.opponent Scvartau Viktor V.
popup.opponent Gryshko Vitalii M.
Дисертацію присвячено вивченню сортоспецифічності механізмів формування стрес-толерантності до йонів кадмію та наночастинок металів-мікроелементів у рослин салату (Lactuca sativa var secalina L.) двох сортів, відмінних за проявом антоціанового забарвлення (зелений сорт Лоло та червоний або антоціановий – Лоло Росса). Виявлено різноспрямованість адаптивної відповіді сортів до досліджуваних стресорів на стадії проростків та вегетативної стиглості. За використаної дози Cd2+-навантаження середовища виявлено потужну акумуляцію металу в коренях рослин обох сортів з превалюванням для червоного сорту. За фізіолого-біохімічними параметрами характеристики метаболому виявлено підвищену толерантність сорту Лоло Росса в умовах присутності 0,1 мМ Cd2+. Використана доза передпосівної обробки наночастинками (Cu,Fe,Mn,Zn)-суміші (НЧМ) виявляє пролонгований вплив для сорту Лоло Росса на стадії вегетативної стиглості. Поєднання досліджуваних чинників призводило до незначної нівеляції негативного впливу Cd2+ в рослин зеленого Лоло, на відміну від сталості прояву фіксованих параметрів рослин сорту Лоло Росса. Показано різноспрямованість фенотипового прояву ознак за впливу досліджуваних чинників, та встановлено, що адаптивна пластичність досліджуваних сортів проявлялась на рівні цілісного організму як інтеграція екзо- та ендогенних механізмів нівеляції негативного впливу трансформованого середовища.
2019-06-26
2020-04-03
Updated: 2025-12-14
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