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Information × Registration Number 0225U001504, (0120U000221) , R & D reports Title Virus infections of wild plant communities as factors of plant productivity in agrobiocenoses popup.stage_title Вірусні інфекції дикої флори як чинники продуктивності рослин в агробіоценозах Head Kyrychenko Anhelina M., Registration Date 02-02-2025 Organization Institute of Microbiology and Virology named after D. K. Zabolotny of the National Academy of Sciences of Ukraine popup.description1 popup.description2 The study aims to investigate viral infections in plants that serve as natural reservoirs of viruses, to examine the biological, physicochemical, and molecular characteristics of pathogens, identify major transmission pathways, and develop approaches to predict the progression of viral diseases and manage epidemiological situations. Weeds, as natural reservoirs of viral pathogens, significantly harm plant health, reducing agricultural productivity and crop quality. A phytosanitary survey of agrocenoses and urban environments in various regions of Ukraine was conducted to identify viruses circulating in weeds and wild flora. For the first time in Central Europe, infection of Lamium purpureum with M- and S-potato viruses was recorded. In Ukraine, CMV was first detected in Silene latifolia, Alliaria petiolata, Arctium lappa, and Euphorbia epithymoides. It was found that A. petiolata not only hosts CMV but also serves as a reservoir for TuMV, facilitating their survival in natural environments. Wheat dwarf virus (WDV) was detected in seven regions of Ukraine, with its impact on yield reduction confirmed. For the first time in Ukraine, BYDV-PAV was identified in maize and Echinochloa crus-galli, while BYDV-MAV was found in oat crops and wild flora (Elymus repens, E. crus-galli). BCMV was studied in seeds of Phaseolus vulgaris cv. Chervona Shapochka, with a transmission rate of 77%. Glycoconjugates Glu-Au and Glu-Ag were examined, and their antiviral activity was confirmed. The hypothesis of viral parallel variability was validated at the levels of genomic sequences, their fragments, and motifs. The conservative nucleotide sites and secondary structures discovered in viral genomes, which function under highly contrasting environmental conditions and are heritable, represent promising models for fundamental research on organism and virus evolution, as well as for the development of innovative biotechnologies aimed at protecting plants from viruses. Product Description popup.authors Bohdan Mykhailo M. Bondarenko Tetiana A. Hryhoruk Irena Yu. Kovalenko Oleksii H. Kraieva Halyna V. Mishchenko Lidiia T. Oskolkova Nina B. Petrenko Svitlana M. Renkas Oksana P. Rozumna Liudmyla F. Snihur Halyna O. Khovdunova Elieonora V. Shcherbatenko Ivan S. popup.nrat_date 2025-02-02 Close