Host-parasite interactions between Cucurbitaceae and P. cubensis exhibit significant variation. This contribution reviews the current state of knowledge regarding characterization of P. cubensis virulence variation on the level of pathotypes (variation in host genera and species host-range) and races (variation in intraspecific level). However, our knowledge of the interactions between P. cubensis isolates and the […]
Ales Lebeda
Cucurbit Powdery Mildew Population Virulence Variation – a Complex View from a Global Perspective
Cucurbit powdery mildew (CPM) is mainly caused by two obligate ectoparasites, Golovinomyces orontii s.l. (Go) and Podosphaera xanthii (Px), that are highly variable in virulence. Various independent systems of CPM race determination and denomination have been used in recent decades. We recently developed new tools to enhance research of CPM virulence variation. Diversity models were […]
Resistance to Fungicides in Cucurbit Powdery Mildew in Europe
One hundred cucurbit powdery mildew (CPM) isolates (41 Golovinomyces orontii s.l. [Go], 59 Podosphaera xanthii [Px]) from the Czech Republic (2012 to 2015), were screened for fungicide efficacy to the six frequently used fungicides (quinoxyfen /Atlas 500 SC/, propiconazole /Bumper 25 EC/, fenpropimorph /Corbel/, dinocap /Karathane LC/ azoxystrobin /Ortiva/) and penconazole /Topas 100 EC/). Fungicide […]
CUCURBITACEAE 2018 Abstracts (BS)
Biotic Stress (BS) View articles in the conference PDF booklet. Aphid-Triggered Immunity in Melon / Key Determinants for Durable Resistance to Virus and Aphids Nathalie Boissot INRA-GAFL, Montfavet, 84143, France The Vat gene in melon is unique in conferring resistance to both A. gossypii and the viruses it transmits. This double phenotype is controlled by […]
Citrullus lanatus – a Potential Host of Powdery Mildew in the Czech Republic
Cucurbit Genetics Cooperative Report 23:46-48 (article 13) 2000 Eva Kristkova Research Institute of Crop Production Praha, Division of Genetics and Plant Breeding, Department of Gene Bank,. Slechtitelu 11, 783 71 Olomouc, Czech Republic Ales Lebeda Palacky University, Faculty of Science, Department of Botany, Slechtitelu 11, 783 71 Olomouc, Czech Republic Introduction .Within the cucurbits, watermelon […]
Disease Resistance of Cucurbita pepo and C. maxima Genetic Resources
Cucurbit Genetics Cooperative Report 22:53-54 (article 19) 1999 Eva Kristkova Research Institute of Crop Production Praha, Division of Genetics and Plant Breeding, Department of Gene Bank, Slechtitelu 11, 783 71 Olomouc, Czech Republic Ales Lebeda Palacky University, Faculty of science, Department of Botany, Slechtitelu 11, 783 71 Olomouc, Czech Republic Introduction A collection of genetic […]