Results 101 to 110 of about 519 (125)

Effects of Cryphonectria parasitica infection by CHV1 hypovirus in the pathogenesis‐related OAH activity

2021
Cryphonectria parasitica, the causal agent of chestnut blight, causes necrotic lesions (cankers) on the bark of stems and branches of susceptible host trees leading to wilting of the plant part distal to the infection. Cryphonectria hypovirus 1 (CHV1) infects C. parasitica and reduces the fungus virulence (hypovirulence).
openaire   +2 more sources

Effect of Cryphonectria hypovirus 1 (CHV1) Infection on Cpkk1, a Mitogen-Activated Protein Kinase Kinase of the Filamentous Fungus Cryphonectria parasitica

Fungal Genetics and Biology, 2006
We screened Cryphonectria parasitica genomic and cDNA libraries with a probe obtained from the amplification of a conserved region among the sequence of known mitogen activated protein kinase kinases (MAPKK) and obtained genomic and cDNA clones. Sequence comparisons of the clones obtained confirmed the identification of a C.
Massimo Turina
exaly   +3 more sources

Oxidative stress parameters in Cryphonectria parasitica naturally infected with CHV1

2022
Chestnut blight disease, caused by an introduced pathogenic fungus Cryphonectria parasitica, is responsible for serious dieback of sweet chestnuts in forest ecosystems. Biological control is highly desirable protection measure against plant diseases. Cryphonectria hypovirus 1 (CHV1) is an RNA mycovirus that by infecting C.
Popović, Maja, Nuskern Karaica, Lucija, Peranić, Karla, Ćurković-Perica, Mirna, Ježić, Marin   +4 more
openaire   +1 more source

Analysis of floral morphology of a cotton homeotic variant (CHV1).

Shi yan sheng wu xue bao, 2004
Physiological and genetic variations exist frequently in the cotton plants regenerated from somatic embryos. A stable homeotic variant (CHV1) was identified from these regenerated plants. Morphological analysis suggested that all the floral organs of the CHV1 plants convert into bract leaf-like organs, this was confirmed by close inspection of floral ...
Yu Long, Guo, Mei Feng, Xue, Ming Yang, Li, Yan, Pei, Shang Yong, Zheng   +4 more
openaire   +1 more source

Cryphonectria parasitica isolates of the same vegetative compatibility type display different rates of transfer of CHV1 hypovirus

European Journal of Plant Pathology, 2015
Hypovirulent strains of the chestnut blight fungus Cryphonectria parasitica have not been registered in the autonomous region of Castilla y Leon (Spain), except in the province of Leon. In this laboratory-based study, we analyzed the rates of horizontal transmission of hypovirus CHV1 subtype F1, isolated from chestnut stands in Leon.
P. Zamora, A. B. Martín, M. Dueñas, R. San Martin, J. J. Diez   +4 more
openaire   +1 more source

Consequences of long term changes in CHV1 prevalence on natural biological control

2018
Mycoviruses, mostly dsRNA or +ssRNA subcellular pathogens of fungi, often cause asymptomatic, latent infections of their hosts. Some of them, however, have debilitating effect, reducing fitness and/or reproductive capability of the infected fungus. This might be effective in biological control of pathogenic fungi, such as Cryphonectria parasitica, a ...
Ježić, Marin, Mlinarec, Jelena, Nuskern, Lucija, Pavičić, Ivana, Poljak, Igor, Idžojtić, Marilena, Schwarz, Janine Melanie, Prospero, Simone, Rigling, Daniel, Ćurković-Perica, Mirna   +9 more
openaire   +2 more sources

Viruses in biocontrol: CHV1-affected epigenetic and biochemical changes in Cryphonectria parasitica

2017
Cryphonectria parasitica is a phytopathogenic fungus introduced from Eastern Asia to North America and to Europe, where it causes chestnut blight, a devastating disease of chestnut trees. A hyperparasitic mycovirus, Cryphonectria hypovirus 1 (CHV1), can infect the fungus, causing the change in morphology and virulence of the affected mycelia ...
Ježić, Marin, Nuskern, Lucija, Tkalec, Mirta, Liber, Zlatko, Krstin, Ljiljana, Katanić, Zorana, Mlinarec, Jelena, Ćurković-Perica, Mirna   +8 more
openaire   +2 more sources

Characterization of vesicle subsets in CHV1 infected C. parasitica

2001
CHV1 infection of the filamentous ascomycete Cryphonectria parasitica, the causal agent of chestnut blight, results in hypovirulent phenotype. Previous studies showed that virus replication is associated with host membrane vesicles. Heavy water-Ficoll gradients were used to separate subsets of vesicles from the microsomal fraction of virus infected and
Turina M, McCabe P M, Prodi A, Van Alfen N K   +3 more
openaire   +1 more source

Genetic variation of Cryphonectria hypoviruses (CHV1) in Europe, assessed using restriction fragment length polymorphism (RFLP) markers

Molecular Ecology, 1999
A total of 72 hypovirus‐infected isolates of the chestnut blight fungus Cryphonectria parasitica were sampled from nine European countries between 1975 and 1997. The double‐stranded RNA of the Cryphonectria hypoviruses (CHV1) was isolated and reverse transcription (RT)–PCR products were obtained for two different regions of the viral genome (ORF A and ...
Allemann, C., Hoegger, P., Heiniger, U., Rigling, D.   +3 more
openaire   +3 more sources

The role of autophagy in Cryphonectria hypovirus 1 (CHV1) infection in Cryphonectria parasitica.

2013
The interaction between Cryphonectria parasitica, the causal agent of chestnut blight, and Cryphonectria hypovirus 1 (CHV1) results in fungal hypovirulence associated with alterations of fungal development, reduced sporulation and pigmentation, accumulation of cytosolic vesicles. The role of these vesicles is to support CHV1 maintenance and replication,
M Rossi, M Vallino, S Abbà, M Turina
openaire   +1 more source