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Hypovirus-infected strains of the fungus Cryphonectria parasitica in the central part of Croatia (CROSBI ID 246479)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Krstin, Ljiljana ; Krajačić, Mladen ; Ćurković Perica, Mirna ; Novak-Agbaba, Sanja ; Rigling, Daniel Hypovirus-infected strains of the fungus Cryphonectria parasitica in the central part of Croatia // Acta horticulturae, 815 (2009), 283-287. doi: 10.17660/ActaHortic.2009.815.37

Podaci o odgovornosti

Krstin, Ljiljana ; Krajačić, Mladen ; Ćurković Perica, Mirna ; Novak-Agbaba, Sanja ; Rigling, Daniel

engleski

Hypovirus-infected strains of the fungus Cryphonectria parasitica in the central part of Croatia

Cryphonectria parasitica (Murr.) Barr, the ascomycete fungus that causes chestnut blight, is mainly responsible for the decline of the European chestnut (Castanea sativa Mill.) in Croatia. Since recovery of the chestnut forests is dependent on the presence of hypovirulent C. parasica strains, we determined the incidence of hypovirulence in the central part of the country. Seventy eight isolates of the chestnut blight fungus C. parasitica were sampled from 2004 to 2006, from four populations (Markusevac 1, Markusevac 2, Samobor, Sljeme). Thirty four of them had white morphology, 19 intermediate, and 25 orange. Twenty six isolates (21 white, 2 intermediate and 3 orange) were screened for the presence of double stranded RNA (dsRNA) by cellulose chromatography and electrophoresis on agarose gels. Hypoviral dsRNA of approximately 12.7 kb in length was detected in all the white isolates tested. In 4 isolates smaller M-dsRNA was also detected. The identity of the hypoviral isolates was determined by reverse transcription, polymerase chain reaction of two hypoviral open reading frames and restriction fragment length polymorphism (RFLP) analysis Restriction patterns of the amplified products showed little variation among the examined hypoviruses from Croatia. Six patterns were completely identical with that of a hypoviral isolate collected in Croatia 22 years ago, which suggest a slow evolution of the hypovirus.

Hypovirus-infected , Cryphonectria parasitica , isolates, Castanea sativa

Rad je prezentiran na skupu International Workshop on Chestnut Management in Mediterranean Countries - Problems and Prospects ; Soylu, A. (ur.) ; održanom 23.10.2007.g., Bursa, Turska.

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Podaci o izdanju

815

2009.

283-287

objavljeno

0567-7572

10.17660/ActaHortic.2009.815.37

Povezanost rada

nije evidentirano

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