Host Resistance to Monilinia vaccinii-corymbosi in Flowers and Fruits of Highbush Blueberry
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Phenology of Apothecium Production in Populations of Monilinia vaccinii-corymbosi from Early- and Late-Maturing Blueberry Cultivars.
ABSTRACT Pseudosclerotia were evaluated for differences in timing of apothecium development in four controlled experiments conducted over a 2-year period. In a separate experiment, conidia from 10 randomly selected isolates from both of the fungal populations were used to inoculate open flowers. Germination of pseudosclerotia produced from these artificial inoculations also was evaluated. The t...
متن کاملVariation and Heritability of Phenology in the Fungus Monilinia vaccinii-corymbosi on Blueberry.
ABSTRACT The germination of field-collected pseudosclerotia and the development of apothecia from eight New Jersey populations of the mummy berry fungus Monilinia vaccinii-corymbosi were evaluated under controlled conditions in the greenhouse. Development data for apothecia were used to describe the timing of apothecium formation and to estimate broad- and narrow-sense heritabilities of fungal ...
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The fungal genus Monilinia comprises several aggressive and economically important plant pathogens. The aim of this study was to examine Monilinia species that belong to the Disjunctoriae group and are specifically pathogenic to Vaccinium hosts. 23 samples of Vaccinium hosts showing symptoms of infection with Monilinia sp. were collected in the years 2004 – 2009. Monilinia species were isolated...
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Several fungal plant pathogens induce 'pseudoflowers' on their hosts to facilitate insect-mediated transmission of gametes and spores. When spores must be transmitted to host flowers to complete the fungal life cycle, we predict that pseudoflowers should evolve traits that mimic flowers and attract the most effective vectors in the flower-visiting community. We quantified insect visitation to f...
متن کاملSequential Sampling to Assess the Incidence of Infection by Monilinia vaccinii-corymbosi in Mechanically Harvested Rabbiteye Blueberry Fruit.
ABSTRACT Blueberry fruit infected by Monilinia vaccinii-corymbosi, the causal agent of mummy berry disease, are unsuitable for use in processed food products. Fruit shipments that exceed a disease incidence threshold of 0.5% are redirected to alternative markets with substantial reductions in economic return to the producer. Because of this low tolerance, a sampling procedure with defined stati...
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