Naslov
The occurence and presence of Botryosphaeria dieback of olive trees and fruits in Istria

Autori
Petrović, Elena ; Vrandečić, Karolina ; Ćosić, Jasenka ; Crnogorac, Ana ; Godena, Sara

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

Izvornik
58th Croatian and 18th International Symposium on Agriculture: Book of Abstracts / - Zagreb, 2023, 244-244

Skup
58th Croatian and 18th International Symposium on Agriculture

Mjesto i datum
Dubrovnik, Hrvatska, 11.02.2023. - 17.02.2023

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Botryosphaeriaceae ; phytopathogenic fungi ; isolate ; field survey

Sažetak
Some of the phytopathogenic fungi from the Botryosphaeriaceae family can cause diseases on olive trees. The disease symptoms occur in the form of dieback and rotting of fruits, dieback of olive leaves and branches, the occurence of necrotic lesions and changes in the color of the bark. The presence of several species from this family has been identifed on the olive trees so far in Republic of Croatia. In 2021 and 2022, a field survey, and sampling of symptomatic olives was carried out on Istrian County territory. The main goals of the conducted research were: to determine the cause of symptomatic changes in olive trees in field research in Istria, and to carry out morphological and molecular identification of species of phytopathogenic fungi from the family Botryosphaeriaceae. The presence of the phytopathogenic fungi of the Botryosphaeriaceae family has been detected in 10 out of 25 locations visited. The largest number of samples was collected in the vicinity of Vodnjan and Rovinj, and phytopathogenic fungus were isolated from some of the most important olive varieties in Istria. Phytopathogenic fungi isolated from the infected plant material (15 isolates in total) have been identified on the basis of morphological and molecular characteristics. Molecular diagnostic was made using the polymerase chain reaction (PCR) method and multigenic analysis of the sequences ITS (internal transcribed spacer), TUB2 (betatubulin) and EF-1α (translation elongation factor 1-α). The research results indicated that the most prevalent species was the Botryosphaeria dothidea.

Izvorni jezik
Engleski

Znanstvena područja
Poljoprivreda (agronomija)

POVEZANOST RADA