Ultraviolet (UV) radiation is a significant environmental stressor that affects the growth, physiology, and biochemical integrity of various organisms. This study investigates the potential protective effects of a zinc-cysteine (Zn-Cys) complex against UV-C radiation, with a focus on its impact on selected microalgae (Coccomyxa peltigerae and Parachlorella kessleri) and maize (Zea mays L.). We demonstrate that exposure of the Zn-Cys complex to UV-C (254 nm) results in the formation of fluorescent photoproducts, which exhibit UV-protective properties. The study reveals that Zn-Cys significantly mitigates UV-induced stress. In both microalgae species, the Zn-Cys complex enhanced growth even under UV exposure, with the 20% concentration showing the most robust protective effects. Further hyperspectral imaging confirmed the protective mechanism of Zn-Cys by monitoring changes in light reflectance in Parachlorella kessleri, indicating reduced photosynthetic efficiency and structural alterations induced by UV exposure, while Zn-Cys significantly mitigated these effects. In addition, in maize plants (Zea mays L.), Zn-Cys treatment preserved chlorophyll content and reduced polyphenol accumulation, indicating reduced oxidative stress. These findings highlight the potential of the Zn-Cys complex as a sustainable and cost-effective strategy for UV protection in both terrestrial and extraterrestrial agriculture, advancing our understanding of plant adaptation to extreme environments.
- MeSH
- Chlorophyta účinky záření účinky léků MeSH
- cystein * chemie farmakologie MeSH
- fotosyntéza účinky léků účinky záření MeSH
- komplexní sloučeniny * chemie farmakologie MeSH
- kukuřice setá účinky záření účinky léků metabolismus MeSH
- mikrořasy účinky záření účinky léků MeSH
- ultrafialové záření * MeSH
- zinek * chemie farmakologie MeSH
- Publikační typ
- časopisecké články MeSH
Using of 3D printing technology (acrylonitrile butadiene styrene as material) stratospheric probe (SP) was developed for the purpose of this experiment. Fluorescent behavior of carbon quantum dots (CQDs) in concentration range 0-32 mg.ml-1 was monitored by stratospheric probe and classical fluorescence spectroscopy. Balloon flight lasted 120 minutes. During this time it traveled 90 km. At a height of approximately 40 km there was a rupture of balloon. Thanks to a parachute SP landed in a controlled manner in the wood in the cadastral area of municipality Brusnica (Slovak Republic). It was found that the fluorescence intensity of CQDs changed slightly before and after the flight, however this was caused by the CQDs instability and not by the detector design.
- MeSH
- 3D tisk MeSH
- atmosféra * MeSH
- design vybavení MeSH
- fluorescence * MeSH
- kvantové tečky * MeSH
- uhlík MeSH
- Publikační typ
- hodnotící studie MeSH
- práce podpořená grantem MeSH
