Subtropical and ornamental horticulture
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ADAPTATION OF IN VIVO AND IN VITRO PROPAGATED CAMELLIA SINENSIS (L.) KUNTZE PLANTS TO THE ACTION OF CALCIUM

Year:
2021
The authors:
Nechayeva T. L., Zubova M. Y., Maluykova L. S., Gvasaliya M. V., Koninskaya N. G., Zagoskina N. V.
DOI:
10.31360/2225-3068-2021-78-66-76
Page numbers:
66 - 76
Keywords:
Camellia sinensis, plants, microshoots, calcium, lipid peroxidation, phenolic compounds, carotenoids.

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The adaptive potential of tea plants and micro-shoots (in vivo and in vitro systems, respectively) for long-term exposure to calcium ions (Ca2+), as an element with multifunctional activity, was studied. There was a decrease in the level of lipid peroxidation in the plants’ and micro-shoots’ leaves of the experimental variants compared with the control, which indicated a decrease in the intensity of oxidative processes with an increase in the concentration of Ca2+ in the habitat. The total content of phenolic bioantioxidants in the micro-shoots’ leaves was 3 times higher in comparison with the plants and did not change under the influence of calcium. The amount of carotenoids was comparable in the control variants and decreased against the background of an increased concentration of Ca2+ only in tea plants’ leaves. In general, there is a significant similarity between the adaptive reactions of tea plants and micro-shoots to the effect of Ca2+, which proves the validity of extrapolation of the data obtained in in vitro culture on tea plants when studying the action of various exogenous inducers.
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ISSN 2225-3068

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