Phenotypic and Molecular Investigations on Hypovirulent Cryphonectria parasitica in Italy
نویسندگان
چکیده
منابع مشابه
Characteristics of Hypovirulent Strains of Chestnut Blight Fungus, Cryphonectria parasitica, Isolated in Korea
Chestnut blight disease caused by Cryphonectria parasitica is widely distributed throughout chestnut tree plantations in Korea. We surveyed 65 sites located at 9 provinces in South Korea, and isolated 248 virulent and 3 hypovirulent strains of chestnut blight fungus. Hypovirulent strains had dsRNA virus in the cytoplasm, which is one of the typical characteristics of hypovirulent strains. In ad...
متن کاملPotential of Local Hypovirulent Strains of Cryphonectria parasitica for Biological Control of Chestnut Blight
Cryphonectria parasitica, introduced in the NE of Portugal since 1989, is now an important and widespread pathogen of chestnut (Castanea sativa Mill.) which causes losses in chestnut fruit production and led to decline and death of many chestnut trees. Hypovirulence, a virus mediated attenuation of fungal pathogenesis, has not been frequent until now in Portugal but recently some cases of heali...
متن کاملCryphonectric acid and other minor metabolites from a hypovirulent strain of Cryphonectria parasitica.
Investigations carried out on secondary metabolites produced in culture by a hypovirulent strain of Cryphonectria parasitica allowed the isolation of several compounds which were characterized by NMR analysis and derivatization reactions. The most abundant metabolite was a new compound, called cryphonectric acid (1). Other metabolites were diaporthin, the only known phytotoxic compound isolated...
متن کاملMitochondrial plasmid-like elements in some hypovirulent strains of Cryphonectria parasitica.
In the chestnut blight fungus Cryphonectria parasitica, cytoplasmically transmissible hypovirulence phenotypes are elicited by debilitating mitochondrial DNA (mtDNA) mutations. In virus-free hypovirulent strains of C. parasitica from nature, the presence of a mitochondrial DNA element, named InC9, has been reported to cause similar disease syndromes. We have detected an additional mitochondrial...
متن کاملPartial Characterization of a Novel Reovirus Isolated from a Hypovirulent Strain (9B21) of Cryphonectria parasitica
A filamentous fungus Cryphonectria parasitica (Murrill) Barr. is the causal agent of the chestnut blight disease. This fungus has some hypovirulent strains. These strains are known to be infected by viruses. To date, many species of viruses have been found to be associated with C. parasitica strains. The number genome segments, their relative size, titer and sequence homology as well as the eff...
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ژورنال
عنوان ژورنال: Plant Disease
سال: 2018
ISSN: 0191-2917,1943-7692
DOI: 10.1094/pdis-04-17-0517-re