<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>Treatment of St. John’s wort plantlets with 1 µM triacontanol and 2 µM benzyladenine stimulates growth and metabolic processes, being an environmental-friendly approach for optimizing the cultivation of these valuable medicinal plants under controlled conditions. When the two growth regulators (a bioactive cuticular wax constituent and a cytokinin) are applied simultaneously, they act synergistically, enhancing each other’s effect on the biomass accumulation and on certain parameters of the photosynthetic light use efficiency, such as the effective quantum yield of photosystem II and the overall vitality index of the photosynthetic apparatus which performs the conversion of light energy into usable forms for carbon dioxide assimilation. The results concerning the interactions between the two externally applied growth regulators during the early development of St. John’s wort plants may lead to a more efficient cultivation of this herbal medicinal product, including the possibility to modulate the production of pharmacologically active metabolites.</p>
</abstract>

Treatment of St. John’s wort plantlets with 1 µM triacontanol and 2 µM benzyladenine stimulates growth and metabolic processes, being an environmental-friendly approach for optimizing the cultivation of these valuable medicinal plants under controlled conditions. When the two growth regulators (a bioactive cuticular wax constituent and a cytokinin) are applied simultaneously, they act synergistically, enhancing each other’s effect on the biomass accumulation and on certain parameters of the photosynthetic light use efficiency, such as the effective quantum yield of photosystem II and the overall vitality index of the photosynthetic apparatus which performs the conversion of light energy into usable forms for carbon dioxide assimilation. The results concerning the interactions between the two externally applied growth regulators during the early development of St. John’s wort plants may lead to a more efficient cultivation of this herbal medicinal product, including the possibility to modulate the production of pharmacologically active metabolites.

Stimulation of Physiological Processes in St. John’s Wort (<italic>Hypericum perforatum</italic> L.) Seedlings by Treatments with Triacontanol and Benzyladenine

Department of Horticulture, Faculty of Technical and Human Sciences

Acta Biologica Marisiensis

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Stimulation of Physiological Processes in St. John’s Wort ( L.) Seedlings by Treatments with Triacontanol and Benzyladenine

Treatment of St. John’s wort plantlets with 1 µM triacontanol and 2 µM benzyladenine stimulates growth and metabolic processes, being an environmental-friendly...

Stimulation of Physiological Processes in St. John’s Wort (Hypericum perforatum L.) Seedlings by Treatments with Triacontanol and Benzyladenine

Published Online: Dec 26, 2022

Page range: 19 - 30

Received: Aug 26, 2022

Accepted: Oct 23, 2022

DOI: https://doi.org/10.2478/abmj-2022-0007

Keywords
biomass production, carotenoids, chlorophyll fluorescence, growth regulators, photosynthetic quantum yield

© 2022 Laszlo Fodorpataki et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Stimulation of Physiological Processes in St. John’s Wort (Hypericum perforatum L.) Seedlings by Treatments with Triacontanol and Benzyladenine

Published Online: Dec 26, 2022

Page range: 19 - 30

Received: Aug 26, 2022

Accepted: Oct 23, 2022

DOI: https://doi.org/10.2478/abmj-2022-0007

Keywordsbiomass production, carotenoids, chlorophyll fluorescence, growth regulators, photosynthetic quantum yield

© 2022 Laszlo Fodorpataki et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
biomass production, carotenoids, chlorophyll fluorescence, growth regulators, photosynthetic quantum yield