Volume: 4, 2025
4th International PhD Student’s Conference at the University of Life Sciences in Lublin, Poland:
ENVIRONMENT – PLANT – ANIMAL – PRODUCT
Abstract number: P014
DOI: https://doi.org/10.24326/ICDSUPL4.P014
Published online: 9 April 2025
ICDSUPL, 4, P014 (2025)
Antifungal potential of coumarin derivatives for crop protection against fungal pathogens
Klaudia Rząd1*, Aleksandra Nucia2, Arkadiusz Matwijczuk1, Sylwia Okoń 2
1 Department of Biophysics, Faculty of Environmental Biology, University of Life Sciences in Lublin, Akademicka 13, 20-950 Lublin, Poland
2 Institute of Plant Genetics, Breeding and Biotechnology, University of Life Sciences in Lublin, Akademicka 15, 20-950 Lublin, Poland
* Corresponding author: klaudia.rzad@up.lublin.pl
Abstract
The harmful relationship between microorganisms and their host is parasitism. Parasitic pathogens can be biotrophic fungi that obtain nutrients and energy from living plant cells. An obligate biotroph is Blumeria graminis, a pathogen that causes a disease called powdery mildew. It attacks all types of cereals and is characterized by a white coating. The largest group of biotrophic fungi are Pucciniales, known as rusts. The challenges in cereal cultivation resulting from the presence of fungal pathogens have forced the agricultural sector to seek new methods of plant protection. Studies show that pathogens have the ability to quickly adapt and develop resistance to previously used pesticides, thus reducing their effectiveness. These factors have contributed to the search for new, effective and safe plant protection products. One of the groups studied in this respect is natural coumarin and its derivatives. This group shows, among others, antifungal properties, as well as good biodegradability. This makes this group a promising candidate for the development of new fungicides. The biological activity of the studied coumarin derivatives was analyzed in vitro using physiological host-pathogen tests. The compound was dissolved in DMSO and added to an agar medium. Leaves of susceptible cereal varieties (oat, wheat, triticale, barley) were placed on Petri dishes containing an agar medium supplemented with coumarin derivatives. Leaf fragments were inoculated with spores of fungal pathogens by spraying spores in inoculation towers. After 10 days of incubation, the degree of infection of leaf fragments was determined. The results of the study showed that coumarin derivatives showed different effects on the growth of biotrophic fungal pathogens. Host plant tests showed that most of the tested compounds were effective in inhibiting the growth of fungi, with two compounds showing 100% efficacy in inhibiting the growth of pathogens.
Keywords: Blumeria, Puccinia, agrochemicals, coumarins
How to cite
K. Rząd, A. Nucia, A. Matwijczuk, S. Okoń, 2025. Antifungal potential of coumarin derivatives for crop protection against fungal pathogens. In: 4th International PhD Student’s Conference at the University of Life Sciences in Lublin, Poland: Environment – Plant – Animal – Product. https://doi.org/10.24326/ICDSUPL4.P014