Naslov
Epidemiologija žutica vinove loze u Hrvatskoj
(Epidemiology of grapevine yellows disease in Croatia)

Autori
Šeruga, Martina ; Škorić, Dijana ; Kozina, Bernard ; Krajačić, Mladen ; Ćurković Perica, Mirna

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Zbornik sažetaka Osmog hrvatskog biološkog kongresa / Besendorfer, Višnja ; Kopjar, Nevenka - Zagreb : Hrvatsko biološko društvo, 2003, 122-123

Skup
Osmi hrvatski biološki kongres s međunarodnim sudjelovanjem

Mjesto i datum
Zagreb, Hrvatska, 27.09.2003. - 02.10.2003

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Domaća recenzija

Ključne riječi
Fitoplazme; žutice vinove loze; epidemiologija
(Phytoplasmas; grapevine yellows; epidemiology)

Sažetak
Grapevine yellows diseases (GY) are mainly caused by plant patogenic prokaryotes – phytoplasmas. Since 1994, when symptoms typical for GY were observed in Zagreb region, spreading of the phytoplasmoses was monitored throughout the country. Up to date GY symptoms were observed in all parts of the country except on the islands. In north-western Croatia the spread of the phytoplasmoses was wide, while in the eastern part it even had an epidemic character, causing significant economic losses. In Ilok, Baranja and Brodski Stupnik up to 50% of the vines were infected. The most susceptible cultivar is Chardonnay, followed by Pinot Gris, Pinot Noir, Pinot Blanc, Ugni Blanc and Cabernet Sauvignon. Infection was also confirmed in indigenous cultivars: Debit, Plavina, Maraština and Istarska Malvazija. The detection was based on nested PCR (polymerase chain reaction) that employed phytoplasma generic and/or specific primers amplifying 16S rRNA gene. The RFLP (restriction fragment length polymorphism) experiments enabled precise classification of the pathogens. Phytoplasmas from all grapevine samples and from two weed species Taraxacum officinale Web. and Polygonum lapathifolium L. were classified in the same ribosomal subgroup 16SrXII-A (Stolbur, Bois Noir), while phytoplasma belonging to the 16SrIII subgroup (X-disease) was only found in Chenopodium album L. The presence of phytoplasmas in vineyard weeds, a potential sources of the disease, as well as the recorded presence of a known vector (Hyalestes obsoletus Sign.) in the country, prompts us to further research on the epidemiology of phytoplasmoses.

Izvorni jezik
Hrvatski

Znanstvena područja
Biologija

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