Active Resistance to Apple Scab
نویسندگان
چکیده
منابع مشابه
New biotechnological tools to accelerate scab-resistance trait transfer to apple
Apple is a fruit crop cultivated worldwide. Apple orchards are exposed to a diverse set of environmental and biological factors that affect the productivity and sustainability of the culture. Many of the efforts and costs for apple production rely on reducing the incidence of fungal diseases, and one of the main diseases is apple scab caused by the fungus Venturia inaequalis. The economic impac...
متن کاملAn Assessment of the Durability and Susceptibility of Scab Resistance in Apple Cultivars
Durable resistance to scab (Venturia inaequalis) of newly introduced cultivars is needed to achieve a considerable reduction of pesticide use. However, the assessment in the field on the level and durability of scab resistance is time and space consuming. A proper and fast indoor test should be a convenient tool to discard cultivars with a limited level of resistance at an early stage. As a res...
متن کاملChitinase activities, scab resistance, mycorrhization rates and biomass of own-rooted and grafted transgenic apple
This study investigated the impact of constitutively expressed Trichoderma atroviride genes encoding exochitinase nag70 or endochitinase ech42 in transgenic lines of the apple cultivar Pinova on the symbiosis with arbuscular mycorrhizal fungi (AMF). We compared the exo- and endochitinase activities of leaves and roots from non-transgenic Pinova and the transgenic lines T386 and T389. Local and ...
متن کاملA cluster of four receptor-like genes resides in the Vf locus that confers resistance to apple scab disease.
The Vf locus, derived from the crabapple species Malus floribunda 821, confers resistance to five races of the fungal pathogen Venturia inaequalis, the causal agent of apple scab disease. In our previous research, the Vf locus was restricted to a BAC contig of approximately 290 kb covered by five overlapping BAC clones. Here, we report on cloning of the resistance gene(s) present in the Vf BAC ...
متن کاملApple Scab Management Options for High-Inoculum Orchards
Apple scab emerged as an expensive problem in apple orchards throughout the Northeastern United States in 2009. Experienced growers who had managed scab effectively for many years found themselves spray ing throughout summer to control scab that kept appearing on new leaves. Th e effort required to protect fruit from scab during summer increased production costs and represents a “loss” to apple...
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ژورنال
عنوان ژورنال: Journal of General Microbiology
سال: 1968
ISSN: 0022-1287
DOI: 10.1099/00221287-53-1-61