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Erysiphe necator . [Distribution map].
Distribution Maps of Plant Diseases, 2006Abstract A new distribution map is provided for Erysiphe necator Schwein. Fungi: Ascomycota: Erysiphales Hosts: Grapevines ( Vitis spp .) and other Vitaceae. Information is given on the geographical distribution in EUROPE, Austria, Bulgaria, Croatia, France, Germany, Greece, Hungary,
null CABI, null EPPO
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Genetic variation and survival of Erysiphe necator in tropical India
Tropical Plant Pathology, 2019The heterothallic, biotrophic fungus Erysiphe necator causes powdery mildew on grapes which impacts the yield and quality of fruits and their processed products. Two genetic groups, A and B, have been described which overwinter either as flag shoots or chasmothecia.
Shashikant B. Ghule +4 more
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An in vitro method to evaluate grapevine cultivars for Erysiphe necator susceptibility
In Vitro Cellular and Developmental Biology - Plant, 2010Powdery mildew, caused by the obligate biotrophic ascomycete Erysiphe necator, is one of the most destructive grapevine diseases worldwide. Cultivars of Vitis vinifera L, for wine and table grape production, are all susceptible to E. necator, whose attacks result in severe epidemics under the warm and dry conditions of the Mediterranean basin.
Monica Marilena Miazzi +1 more
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Detection of a Specific Transposon in Erysiphe necator from Grapevines in France
Journal of Phytopathology, 2007AbstractThe biotrophic fungus, Erysiphe necator the causal agent of the grape powdery mildew, has two genetic groups A and B in European and Australian vineyards. A strain of group A was used to isolate a DNA sequence that exhibits high sequence homology to RNaseH of a non‐LTR (long tandem repeat) retrotransposon of Glomerella cingulata.
Bouscaut, Jerome +1 more
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Ascospore maturation and discharge in Erysiphe necator
2008Ascospores of Erysiphe necator are a relevant source of inoculum for spring infections. They form within chasmothecia (formerly named cleistothecia) which develop on the affected grapevine tissue in late summer to autumn, disperse to the bark by rain-splashes, and overwinter.
Caffi, Tito +2 more
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Detection and quantification of Erysiphe necator DNA in wine grapes and resultant must and juice
Mycological Research, 2006Powdery mildew of grapevines is difficult to assess visually at the weighbridge, particularly in large consignments of machine-harvested fruit. To facilitate accurate methods for the detection and quantification of the disease in grape samples obtained from both the vineyard and winery, we developed a DNA probe for the pathogen Erysiphe necator. The E.
Stummer, B. +3 more
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Le popolazioni di Erysiphe necator
2015Capitolo 4 in sintesi • Gli studi genetici sulle popolazioni di E. necator hanno ricevuto un grande impulso a partire dalla metà degli anni ‘90; • Diversi studi hanno portato alla definizione di una “teoria dei biotipi”, che inizialmente distingueva un genotipo “I” (corrispondente a un biotipo germogli a bandiera) e di un genotipo “III ...
Caffi, T. +3 more
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Validation of a model for maturation of Erysiphe necator chasmothecia
2013Powdery mildew of grapevine, caused by the ascomycete Erysiphe necator (Schw.) Burr., is a polycyclic disease with primary infections caused by ascospores produced in the overwintered fruiting bodies (called chasmothecia), and secondary infections caused by asexual conidia produced in powdery mildew colonies during the grapevine growing season. Despite
Legler, Sara Elisabetta +2 more
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Effect of grapevine training systems on susceptibility of berries to infection by Erysiphe necator
European Journal of Plant Pathology, 2012The effect of two training systems on the development of powdery mildew caused by Erysiphe necator in berries of Chardonnay and Cabernet Sauvignon grapevines was examined. Disease development was monitored on berries from vines trained to either vertical shoot positioning or as free-positioned, topped vines with no foliage support wires.
T. Zahavi, M. Reuveni
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