Golovinomyces powdery mildews on Asteraceae in the Czech Republic

Barbora Mieslerová, Miloslav Kitner, Veronika Petřeková, Jitka Dvořáková, Michaela Sedlářová, Roger T.A. Cook and Aleš Lebeda
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Barbora Mieslerová: Department of Botany, Faculty of Science, Palacký University Olomouc, Olomouc, Czech Republic
Miloslav Kitner: Department of Botany, Faculty of Science, Palacký University Olomouc, Olomouc, Czech Republic
Veronika Petřeková: Department of Botany, Faculty of Science, Palacký University Olomouc, Olomouc, Czech Republic
Jitka Dvořáková: Department of Botany, Faculty of Science, Palacký University Olomouc, Olomouc, Czech Republic
Michaela Sedlářová: Department of Botany, Faculty of Science, Palacký University Olomouc, Olomouc, Czech Republic
Roger T.A. Cook: 30 Galtres Avenue, YO31 1JT , York, UK
Aleš Lebeda: Department of Botany, Faculty of Science, Palacký University Olomouc, Olomouc, Czech Republic

Plant Protection Science, 2020, vol. 56, issue 3, 163-179

Abstract: Powdery mildews on the Asteraceae family were surveyed during 2007-2015 in the Czech Republic with the aim to increase our knowledge about occurrence, morphological characteristics and host specificity of powdery mildews on this family. In total, 32 host species with symptoms of powdery mildew were collected, and the fungal species were identified based on microscopic observations. These showed great variability in their morphological characteristics. Our study confirmed the high host specificity of powdery mildew species to their original hosts. A deeper knowledge of the taxonomy of the Asteraceae has brought substantial changes in the delimitation of powdery mildew species. In particular, delimitation of the three varieties of Golovinomyces asterum was studied and discussed.

Keywords: Aster; Symphyotrichum; Erysiphaceae; anamorph and teleomorph stage; host specificity; ITS (search for similar items in EconPapers)
Date: 2020
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlpps:v:56:y:2020:i:3:id:129-2019-pps

DOI: 10.17221/129/2019-PPS

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