Biological control of chestnut blight - Efficiency of natural hypovirulence (CROSBI ID 652917)
Prilog sa skupa u zborniku | sažetak izlaganja sa skupa | međunarodna recenzija
Podaci o odgovornosti
Schwarz, Janine ; Ježić, Marin ; Risteski, Mihajlo ; Ćurković-Perica, Mirna ; Prospero, Simone ; Sotirovski, Kiril ; Rigling, Daniel
engleski
Biological control of chestnut blight - Efficiency of natural hypovirulence
The mycovirus Cryphonectria hypovirus 1 (CHV-1) infects the ascomycete fungus Cryphonectria parasitica, the causal agent of chestnut blight, an introduced disease of Castanea sativa in Europe. CHV-1 reduces the virulence of C. parasitica against its host tree – a property used in the biological control of the pathogen. The hypovirus is transmitted between fungal strains of the same vegetative compatibility (vc) type, but only at reduced rates between strains of different vc types. The aim of this study was to test the efficiency of naturally occurring hypoviruses to infect virulent C. parasitica strains in the field. For this, a common field experiment was conducted in chestnut coppice forests in Switzerland, Croatia, and Macedonia. The main results of the experiment can be summarized as follows: (1) Natural hypoviruses infected virulent cankers of common vc types faster and more efficiently than cankers of rare vc types, (2) Hypovirus infection significantly reduced canker growth in Switzerland and Macedonia, but not in Croatia, and (3) Virus infection was associated with the immigration of new C. parasitica genotypes into the cankers. The study demonstrates that CHV-1 is an efficient natural biological control agent of chestnut blight in many regions of Europe.
Chestnut blight, Castanea sativa, natural biological control, field experiment
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Podaci o prilogu
53-53.
2017.
objavljeno
Podaci o matičnoj publikaciji
Book of Abstracts "Sustainable Forestry: Fact or Fiction?"
Skopje: Ss. Cyril and Methodius University
978-9989-132-19-3
Podaci o skupu
Sustainable Forestry - Fact or Fiction?
poster
04.10.2017-06.10.2017
Skopje, Sjeverna Makedonija