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A strain of mycovirus AaVV1 mediates hypovirulence of Alternaria species
Pesticide Biochemistry and PhysiologyThe genus Alternaria comprises a wide range of ubiquitous plant pathogens that affect various host plants. Certain mycoviruses can induce changes in the biological characteristics and virulence of host fungi, offering potential for biocontrol in managing fungal plant diseases. Here, we identified a mycovirus with a high degree of homology to Alternaria
Ya Rong, Wang +5 more
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Hypovirulence of Chestnut Blight Fungus Conferred by an Infectious Viral cDNA
Science, 1992Strains of the chestnut blight fungus Cryphonectria parasitica that contain viral double-stranded RNAs often exhibit reduced virulence. Such hypovirulent strains act as biocontrol agents by virtue of their ability to convert virulent strains to hypovirulence after anastomosis.
G H, Choi, D L, Nuss
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The Genetic Mechanism of Hypovirulence in Cryphonectria (Endothia) Parasitica
1992Infections caused by plant pathogenic fungi are responsible for about 70% of the major crop diseases, and consequently they are in many cases a nightmare to farmers or greenhouse growers. Occassionally, the right combination of a susceptible host with a virulent isolate of a fungus can lead to devastating epidemics, with entire crops being wiped out ...
Pierre Pfeiffer, Neal K. Van Alfen
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The Acquisition of Hypovirulence in Host‐Pathogen Systems with Three Trophic Levels
The American Naturalist, 1998A major focus of research on the dynamics of host-pathogen interactions has been the evolution of pathogen virulence, which is defined as the loss in host fitness due to infection. It is usually assumed that changes in pathogen virulence are the result of selection to increase pathogen fitness.
D R, Taylor +3 more
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Dynamics of natural hypovirulence in the chestnut blight fungus in Europe
2022In Europe, the mycovirus Cryphonectria hypovirus 1 (CHV-1) acts as a successful biological control agent of the chestnut blight fungus Cryphonectria parasitica. The hypovirus induces a hypovirulent phenotype by reducing parasitic growth and sporulation capacity of its fungal host.
Rigling, Daniel +7 more
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Thyreophagus corticalis as a vector of hypovirulence in Cryphonectria parasitica in chestnut stands
Experimental and Applied Acarology, 2013The natural spread of hypovirulence in Cryphonectria parasitica (Murr.) Barr. occurs in chestnut (Castanea sativa Mill) stands and orchards in Italy and other European countries, leading to spontaneous recovery of the diseased trees. Little is known about how hypovirulence spreads in chestnut stands but various corticolous mite species frequently ...
Simoni S +4 more
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Hypovirulence of Didymella bryoniae Associated with dsRNA
Journal of Phytopathology, 2004Abstract Didymella bryoniae, isolate 98–18, recovered from watermelon seedlings with symptoms of gummy stem blight, showed abnormal growth, mycelial lysis, sectoring, barrage and limited production of fruiting bodies in culture. A dsRNA (approximately 6.5 kbp) was associated with isolate 98–18 and other isolates showing abnormal mycelial growth ...
R. R. Urs, D. E. Mayhew, P. D. Roberts
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Understanding the hypovirulence and hypervirulence of listeria monocytogenes
Caractérisation de l’hypovirulence et l’hypervirulence de Listeria monocytogenes Listeria monocytogenes est une bactérie pathogène opportuniste d'origine alimentaire capable de s'adapter à des conditions de croissance stringentes. Lm est responsable de la listériose, une infection potentiellement létale touchant principalement les ...openaire +1 more source
Double-Stranded RNA and Hypovirulence of Endothia Parasitica
1986The concept of biological control as a means of reducing the impact of disease or pest losses is an appealing one. The realization that the chemicals traditionally used to control pests can accumulate and have an adverse impact on the environment has created an interest in biological control as an alternative method of reducing the impact of pests ...
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Naturally occurring hypovirulence is necessary for the survival of the chestnut
2015Cryphonectria parasitica Murill Barr is an introduced ascomycete pathogen that caused serious destruction of chestnut trees (Castanea sativa Mill.) in Europe since its introduction in the first half of the XX century. It has spread throughout the entire chestnut areal in Europe and around the Mediterranean.
Vuković, Rosemary +8 more
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