The response of hydroponically grown vetch (Vicia sativa) plants to a short-term Cu excess

Nikushin, O.; Kushunina, M.; Kochkin, D.; Nikolaeva, Y.; Meychik, N.

Авторы: Nikushin Oleg, Kushunina Maria, Kochkin Dmitry, Nikolaeva Yuliya, Meychik Nataly
Журнал: Plant Biosystems
Том: 159
Номер: 6
Год издания: 2025
Издательство: Societa Botanica Italiana
Местоположение издательства: Italy
Первая страница: 1276
Последняя страница: 1284
DOI: 10.1080/11263504.2025.2531889
Аннотация: Vetch (Vicia sativa) is frequently used for phytoremediation purposes, but its response to elevated Cu concentrations has been studied only in germinating seeds. Our aim was to investigate the response of hydroponically grown vetch to a short-term Cu excess. The amount of Cu in the roots and shoots increased with Cu concentration in the medium. Vetch plants accumulated Cu predominantly in the roots, where its toxicity manifested itself as a reduction in dry weight and water content. Both root and shoot cell walls of control plants demonstrated high Cu-binding capacity. By contrast, this parameter was reduced in roots of the plants treated with 100 µM Cu and in shoots of the plants treated with 10 µM Cu. Another response of V. sativa to the Cu excess was exudation of triterpene glycosides (saponins) from roots in a Cu concentration–dependent manner. We propose that the high accumulation of Cu in vetch roots is a result of high Cu-binding capacity of root cell walls, which serve as a sink for excess Cu in the root. The observed decrease in cation exchange capacity of the cell walls and the exudation of saponins may represent defense mechanisms against a Cu excess in the medium.
Добавил в систему: Кушунина Мария Александровна

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The response of hydroponically grown vetch (Vicia sativa) plants to a short-term Cu excessстатья