Affiliation:
1. Institute of Pesticides and Environmental Protection, 11080 Belgrade, Serbia
2. Institute of Field and Vegetable Crops, 21000 Novi Sad, Serbia
Abstract
Crop losses caused by the plant pathogenic bacterium ‘Candidatus Phytoplasma solani’ (CaPsol) underscore the need to better understand its perplexing epidemiological pathways. Hyalesthes obsoletus (Hemiptera, Cixiidae) is a prominent CaPsol vector with three plant associations in Serbia (ex Urtica dioica/HobsUd; ex Convolvulus arvensis/HobsCa; ex Crepis foetida/HobsCf). Another cixiid planthopper, Reptalus quinquecostatus (Dufour), has been recently confirmed as a noteworthy CaPsol vector. A multi-test study assessed the relevance of H. obsoletus associations and R. quinquecostatus populations from Crataegus monogyna and Prunus spinosa in CaPsol occurrence in sugar beet, maize, and tobacco. Molecular typing of the CaPsol strains transmitted to test plants in experimental trials provided the first evidence of HobsUd transmitting CaPsol tuf-a type to sugar beet, HobsCa infecting maize and tobacco with tuf-b type, and HobsCf transmitting CaPsol tuf-b to maize. Affiliation of R. quinquecostatus with the specific CaPsol genotype, dSTOLg, was reaffirmed in this study. The possible involvement of R. quinquecostatus in maize redness disease and tobacco stolbur was suggested, given that this cixiid was identified as a vector of CaPsol to these crops. The obtained results indicate that the tested vectors pose a threat to cultivated plants in Serbia, underscoring the need to recognize their relevance in CaPsol disease occurrences.
Funder
Ministry of Education, Science and Technological Development of the Republic of Serbia
Science Fund of the Republic of Serbia, Program IDEAS
Subject
Plant Science,Ecology,Ecology, Evolution, Behavior and Systematics
Reference56 articles.
1. ‘Candidatus Phytoplasma solani’, a novel taxon associated with stolbur- and bois noir-related diseases of plants;Quaglino;Int. J. Syst. Evol. Microbiol.,2013
2. Rao, G.P., Bertaccini, A., Fiore, N., and Liefting, L.W. (2018). Phytoplasmas: Plant Pathogenic Bacteria-I, Springer.
3. Corn reddening: The disease and breeding for resistance;Bekavac;J. Plant Pathol.,2007
4. Invasion biology and host specificity of the grapevine yellows disease vector Hyalesthes obsoletus in Europe;Johannesen;Entomol. Exp. Appl.,2008
5. The incidence of stolbur disease and associated yield losses in vegetable crops in South Moravia (Czech Republic);Lauterer;Crop Prot.,2009