Production of phenolic metabolites by Deschampsia antarctica shoots using UV-B treatments during cultivation in a photobioreactor

Polish Polar Research

“…Phenolics content may depend on environmental conditions such as photoperiod, altitude, level of UV radiation, humidity, and temperature (Day et al 2001;Ruhland et al 2005;Jaakola and Hohtola 2010). It was found that the concentration of flavonoids, such as orientin and luteolin increased in D. antarctica plants that is influenced by UV-B radiation (Day et al 2001;Sequeida et al 2012). It should be noted that, in our study, all plants were cultivated under standard conditions and were not exposed to any external influences that could alter the accumulation of secondary metabolites.…”

Antioxidant Responses Induced by UVB Radiation in Deschampsia antarctica Desv.

“…It has been suggested that tolerance of D. antarctica to changing levels of UVB radiation in situ is due to its synthesis and storage of phenolic-type molecules that play an important role in protecting biomolecules (Xiong and Day, 2001; van de Staaij et al, 2002). This response was observed when this Antarctic hairgrass was exposed to UVB radiation under controlled conditions in a photobioreactor (Sequeida et al, 2012). …”

Polish Polar Research

“…It has been proven that the phenolic metabolites of D. antarctica have antitumor activity and are able to inhibit the proliferation of melanoma cells (Gidekel et al 2010;Poronnik et al 2014), suppress the growth of colorectal carcinoma and liver metastases (Malvicini et al 2018). Several studies were devoted to an assessment of the total content of phenolic compounds in D. antarctica plants, using the Folin-Ciocalteu method, and of the content of flavonoids, using a characteristic color reaction with aluminum chloride (Sequeida et al 2012;Köhler et al 2017;Twardovska et al 2021). Nine main flavonoids (derivatives of luteolin, apigenin, and tricetin) were identified in the majority of D. antarctica plants (Webby and Markham 1994).…”

“…A number of studies was devoted to the influence of plants growing conditions on the content of useful compounds (van de Staaij et al 2002). Another direction of research is the introduction of the plant into in vitro culture and the investigation of the biochemical composition of the plants grown under such artificial conditions (Zahrychuk et al 2011(Zahrychuk et al , 2012Sequeida et al 2012;Cortés-Antiquera et al 2021). Cultivation of D. antarctica in vitro is expected to provide an opportunity to produce bioactive compounds under standard conditions and in the required quantity (Twardovska et al 2021).…”