Thesis supervisor: Marianna Marschall
Location of studies (in Hungarian): EKKE TTK Eger Abbreviation of location of studies: EKKE
Description of the research topic:
Artificial light at night (ALAN) can be categorized as an environmental pollutant. Spectrum, duration, and intensity of ALAN can give signals to plants in regulating circadian rhythms, phenology, physiology, and production of secondary metabolites on both vascular and non-vascular plants. Studies of ALAN mostly use high-intensity and full-day treatments that are felt to be unreality. Most of the plants are only exposed to ALAN at low intensity because the distance between the plants and the lights is quite far. Moreover, the use of ALAN is not only for streetlights but also for recreational activity, leisure time, economically productive activity, and social interaction, which is the light only turned on when needed. In addition, most of them use vascular plants, despite in fact, that non-vascular plants such as Bryophyta are also exposed to ALAN. This study is designed to represent the real conditions of ALAN in the field. We will use three types of treatment, including LED spectrum (blue, red, and streetlight), light intensity (low and high intensity), as well as light duration (6 pm – 10 pm; 6 pm – 2 am; 6 pm – 6 am). Furthermore, this research will use both vascular and non-vascular plant model systems. This study aims to confirm the growth performance, penology, stress level, and secondary metabolites product of plants affected by ALAN as well as to determine the spectrum, intensity, and duration of artificial light that harms both vascular and nonvascular plants. The results of this research will contribute the knowledge about the level of ALAN interference in vascular and non-vascular plants, as well as provide recommendations in strategic sectors regarding the use of ALAN in urban areas.
Marschall, M. & Sass-Gyarmati A. (2023). Data to the non-structural carbohydrates of the fructan accumulating Sphagnum species from the tropical Réunion Island in relation to their altitude zone and distribution. Acta Biologica Plantarum Agriensis, 11(1) pp 302-313. https://doi.org/10.21406/abpa.2023.11.1.302
Marschall, M., & Sütő, S. (2022). Effects of desiccation rate and inhibition of protein synthesis and the violaxanthin cycle on the rewetting recovery of Porella platyphylla. The Bryologist, 125(4), 602-625. https://doi.org/10.1639/0007-2745-125.4.602
Csupor, D., Kurtán T., Vollár M., Kúsz N., Kövér K., Mándi A., Szűcs P., Marschall M., Senobar T. S.A., Zupkó I., Hohmann J. (2020). Pigments of the moss Paraleucobryum longifolium: isolation and structure elucidation of prenyl-substituted 8,8′-Linked 9,10-phenanthrenequinone dimers. Journal of Natural Products, 83 2 pp 268-276. https://doi.org/10.1021/acs.jnatprod.9b00655
Required language skills: English Number of students who can be accepted: 1
Deadline for application: 2024-05-31
2024. IV. 17. ODT ülés Az ODT következő ülésére 2024. június 14-én, pénteken 10.00 órakor kerül sor a Semmelweis Egyetem Szenátusi termében (Bp. Üllői út 26. I. emelet).
Login
