János GYŐRI, PhD

head of department, senior research fellow
BLI Department of Experimental Zoology
gyori.janos [at] okologia.mta.hu
+36 87 448-244 / 219
Brief description of the main scopes: 

Identification of metabolites of biologically active ingredients and characterization of their chemical/ecotoxicological effects. The goal of our research is to determine the environmental fate of neonicotinoids, and their ecotoxicological impact using in vitro and in vivo models. Due to intensive use of ingredients in agriculture non-target species in the environment are exposed. The importance of the topic and the actuality is underlined by the fact, that there is a great worry worldwide about the decline of pollinators wherein, among others, the extensive use of pesticides is assumed to play a significant role.

Main profile in keywords: 
neoicotinoids, metabolite, ecotoxicology, biomarker, acethylcholine, P2X receptors
Selected publications:


Mörtl, M. Darvas, B. Vehovszky, Á. Győri, J. Székács, A. (2019): Contamination of the guttation liquid of two common weeds with neonicotinoids from coated maize seeds planted in close proximity SCIENCE OF THE TOTAL ENVIRONMENT, 649: 1137-1143


Ágnes Vehovszky, Anna Farkas, Vivien Csikós, András Székács, Mária Mörtl, János Győri (2018): Neonicotinoid insecticides are potential substrates of the multixenobiotic resistance (MXR) mechanism in the non-target invertebrate, Dreissena sp. AQUATIC TOXICOLOGY, Volume 205, December 2018, Pages 148-155


Farkas A, Ács A, Vehovszky Á, Falfusynska H, Stoliar O, Specziár A, Győri J (2017): Interspecies comparison of selected pollution biomarkers in dreissenid spp. inhabiting pristine and moderately polluted sites SCIENCE OF THE TOTAL ENVIRONMENT 599–600: pp. 760-770.


Vehovszky Á, Farkas A, Ács A, Stoliar O, Székács A, Mörtl M, Győri J (2015): Neonicotinoid insecticides inhibit cholinergic neurotransmission in a molluscan (Lymnaea stagnalis) nervous system AQUATIC TOXICOLOGY 167: pp. 172-179. (2015)


Falfushynska HI, Gnatyshyna LL, Farkas A, Vehovszky A, Gyori J, Stoliar OB (2010): Vulnerability of biomarkers in the indigenous mollusk Anodonta cygnea to spontaneous pollution in a transition country CHEMOSPHERE 81:(10), 1342-1351