Cyathea delgadii – Ogród Botaniczny w Powsinie https://ogrod.pan.pl/en Polska Akademia Nauk Ogród Botaniczny-CZRB w Powsinie Sun, 27 Oct 2024 05:33:57 +0000 en-US hourly 1 https://wordpress.org/?v=6.9.4 https://ogrod.pan.pl/wp-content/uploads/2020/09/logo_top_80.png Cyathea delgadii – Ogród Botaniczny w Powsinie https://ogrod.pan.pl/en 32 32 We learned about the effect of LED lights on micropropagation of ferns https://ogrod.pan.pl/en/we-learned-about-the-effect-of-led-lights-on-micropropagation-of-ferns/ Fri, 11 Mar 2022 08:51:48 +0000 https://ogrod-powsin.pl/poznalismy-wplyw-swiatel-led-na-mikropropagacje-paproci/ In the January 2022 issue of the magazine Cells A scientific publication by the Plant Biotechnology and Micropropagation Team has been published. It describes the effect of different wavelengths of light emitted by LEDs (Light-Emitting Diode, light-emitting diode) on micropropagation and development of tree ferns Cyathea delgadii in cultures in vitro and on the accumulation of photosynthetic pigments and secondary metabolites in its tissues. Blue light (430 nm) stimulated plant proliferation and had a positive effect on the number and length of leaves. In contrast, its effect on root elongation was unfavorable. The longest roots were formed under red light (670 nm) and control light - emitted by fluorescent lamps. In addition, plants growing under blue light accumulated photosynthetic pigments to the highest degree. Extracts from these plants also had the highest content of such secondary metabolites as rutin and isocquercetin.

The publication also describes the effect of a wide spectrum of light length on the efficiency of somatic embryogenesis on fern petiole explants. The results obtained may be useful in improving micropropagation conditions in ferns and show that metabolite accumulation can be controlled by different light spectra.

Fig. Best light conditions of culture in vitro for mass production of plants of the species Cyathea delgadii.; RBY light - a mixture of red, blue and yellow light (35%/15%/50%), B light - blue light (100%); 16/8 - photoperiod 16 hours day and 8 hours night.

Tomaszewicz, W.; Cioć, M.; Dos Santos Szewczyk, K.; Fung, M.; Pietrzak, W.; Pawlowska, B.; Mikula, A. Enhancing In Vitro Production of the Tree Fern Cyathea delgadii and Modifying Secondary Metabolite Profiles by LED Lighting. Cells 2022, 11, 486. https://doi.org/10.3390/cells11030486

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