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Showing 1 to 18 of 18 for “"Cryphonectria parasitica"”.
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Population biology of Cryphonectria parasitica infected with Cryphonectria hypovirus 1 on American chestnut trees
… of the orange-pigmented, chestnut blight fungus (Cryphonectria parasitica (Murr.) Barr). Chestnut blight is less severe in Europe, where hypovirulent (= reduced virulence) strains of the fungus are found to be associated with healing cankers. These European hypovirulent strains are infected with a …
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Spread of White Hypovirulent Strains of Cryphonectria Parasitica Among American Chestnut Trees at the Lesesne State Forest
… at the Lesesne State Forest were sampled for Cryphonectria parasitica. Cankers were sampled in 1996 and 1997 at various distances from the main stem zone on the grafts (ground to 183 cm) that was inoculated in 1982 and 1983 with a mixture of dsRNA-containing white and pigmented hypovirulent …
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Cultural characteristics, vegetative compatibility, and spatial pattern of white hypovirulent strains of Cryphonectria parasitica on grafted American chestnut trees
… and six, pigmented hypovirulent strains of Cryphonectria parasitica. A total of 202 C. parasitica isolates were recovered from 49 cankers located outside of the inoculated zone. Ninety-five isolates (47%) were white and 107 (53%) were pigmented. Forty-eight vegetative compatibility groups …
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Host-pathogen interactions in a segregating population of BC2F2 hybrid Castanea dentata and other chesnut hybirds after exposure to hypovirus-containing and hypvirus-free strains of Cryphonectria parasitica
… were exposed to three isogenic strains of Cryphonectria parasitica. Strain Ep155 (virus-free) was used to screen the 4- 7 year old chestnut trees for resistance to chestnut blight disease. Two virus-containing, hypovirulent strains, Ep155(CHV1-Euro7) and Ep155(CHV1-Ep713), were used to …
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Effect of Coagulants and Calcium Reduction on Mozzarella Cheese Functionality
… (chymosin and the proteases derived from Cryphonectria parasitica) and starter culture on the proteolysis of reduced calcium Mozzarella cheese. Mozzarella cheeses were made by direct acidification using glucono - δ- lactone or using starter culture. Milk was preacidified using citric acid …
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IDENTIFYING HIGHLY CONSERVED PATHOGENICITY GENES IN CHESTNUT BLIGHT AND POWDERY MILDEW FUNGI AS TARGETS FOR NOVEL FORMS OF HOST RESISTANCE
… search of the genomes of chestnut blight fungus, Cryphonectria parasitica (Cp), and the Arabidopsis powdery mildew fungus, Golovinomyces cichoracearum (Gc), yielded six suspected pathogenicity genes with homologues in both species. Deletion of these genes by homologous gene replacement was …
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Small stem assay for chestnut blight resistance in segregating half-sib and full-sib families of F2 and backcross hybrid chestnut trees
… with the chestnut blight causal organism Cryphonectria parasitica when stem diameters were greater than 4mm. The 2017 trial recorded the day on which the plant wilted, during both the 2017 and 2018 trial, canker length was measured and recorded. The 2017 trial gave insight to the rate at …
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Virulence of cryphonectria hypoviruses from previous release sites
In 1994 and 1995, Cryphonectria parasitica isolates singly or doubly infected with hypoviruses in the CHV3 genus, and lacking distinctive morphological abnormalities, were recovered near plots formerly used to release hypoviruses. This study tested the hypothesis that North American hypoviruses are …
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Evaluating the Adaptive Genomic Landscape of Remnant and Backcross American Chestnut Populations to Inform Germplasm Conservation
… Approximately 100 years ago, a fungal pathogen (Cryphonectria parasitica) decimated chestnut populations, resulting in the loss of billions of trees. Disease-resistant American chestnut populations have been developed, but the introgression of wild adaptive diversity into these breeding …
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Roles of tannase and hydrolyzable tannins in chestnut blight
<u>Endothia parasitica</u> (Murr.) P. J. & H. E. Anderson (syn: <u>Cryphonectria parasitica</u>(Murr.) Barr), the causal agent of chestnut blight, was able to grow in total aqueous and tannin extracts from blight-susceptible American chestnut as well as in blight-resistant Chinese chestnut bark …
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Chestnut (Castanea spp.) cultivar evaluation for commercial chestnut production in Hamilton County, Tennessee
… cultivars’ ability to survive in the area with Cryphonectria parasitica and other chestnut diseases and pests present. We hypothesized that some cultivars would perform well and could therefore be recommended to potential growers. Cultivars were primarily judged based on mean nut mass and total …
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Appalachian Surface Mine Reforestation Techniques: Effects of Grading, Cultural Treatments and Species Selection
… chestnut, functionally extinct since the blight (Cryphonectria parasitica), to its former range. These cultural practices can be employed to accelerate reforestation of mined lands, but many questions remain about their capability to fully restore ecosystem structure and processes.
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Leveraging the Landsat Archive to Track Understory Evergreen Shrub Expansions in the Coweeta Basin, North Carolina
… namely the chestnut blight fungus (Cryphonectria parasitica) and hemlock woolly adelgid (Adelges tsugae), have permanently altered the overstory canopy of Appalachian forests by causing the dramatic die-offs of two ecologically significant tree species, American chestnut (Castanea …
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Melt and Rheological Characteristics of Low Moisture Part Skim Mozzarella Cheese as Affected by the Starter Culture and Coagulating Enzymes
… and Lactobaci/lus helveticus (MC). Rennet or Cryphonectria parasitica protease at two different levels (1 X and 6X) were used as the coagulating enzymes. MC cheeses had higher moisture and protein contents and lower fat content. Cheeses made with rennet showed a greater hydrolysis of …
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FUNCTIONAL CHARACTERIZATION OF PAPAIN-LIKE PROTEASE p48 REQUIRED FOR REPLICATION OF HYPOVIRUS CHV-1 RESPONSIBLE FOR VIRULENCE-ATTENTUATION OF THE CHESTNUT BLIGHT FUNGUS
… of the chestnut blight fungus <italic>Cryphonectria parasitica</italic>, encodes two leader papain-like proteases, p29 and p48, at the N-terminus of ORF A and ORF B, respectively. Protease p29 has been shown to be dispensable for hypovirus RNA replication, whereas protease p48 is …
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Diversity, characteristics and potential for biological control of Sclerotinia sclerotiorum mycoviruses in New Zealand
… to control the chestnut blight fungus Cryphonectria parasitica, and there are increasing reports of hypovirulence-mediating mycoviruses in other fungi, including S. sclerotiorum. Of the New Zealand S. sclerotiorum isolates tested, 73% contained double-stranded RNAs (dsRNAs), indicative …
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Tree-ring studies of Chestnut (Castanea sativa) in the Belasitsa Mountain in southern Bulgaria
… time it is believed that the fungal pathogen (Cryphonectria parasitica) was spreading into the area, causing infection in the trees which resulted in growth loss. High precipitation in May and June lead to increased radial growth of the trees and vice versa. High temperature during the growing …
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Fenoles en Castanea sativa Mill.: desde el monte a la industria
… castaño en Asturias, el chancro producido por Cryphonectria parasitica. Sin embargo, este efecto parece deberse a una menor presencia del hongo debido a la mejora de las condiciones ambientales, como mayor insolación y aireación, ya que no parece existir relación directa con la modificación …