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Oidium and chasmothecia of Golovinomyces cichoracearum (40×) on Telekia speciosa from Rathen, Germany (GLM F074699). Bar = 300 μm. Photo by Herbert Boyle & Jürgen Schulz.
Source publication
S. (2007): First report of the powdery mildew Golovinomyces cichoracearum on Telekia speciosa in Germany. – Czech Mycol. 59(2): 201–204. A first report of the occurrence of the powdery mildew Golovinomyces cichoracearum (DC.) V. P. Gelyuta on the neophyte Telekia speciosa (Schreb.) Baumg. in Germany is given. At one locality, the host plant was add...
Context in source publication
Context 1
... are deposited at the State Museum of Natural His- tory Görlitz (GLM) and/or herb. W. Dietrich. Saxony, Elbsandsteingebirge region, Rathen, verge of a meadow adjacent to the river Elbe (Fig. 1), 14° 04' 24" E; 50° 57' 31" N, alt. 125 m, 1 July 2006 leg. S. Hoeflich, det. H. Boyle (GLM, F074699), Oidium accompanied by abundant chasmothecia (Fig. ...
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Citations
... A record from Estonia, listed in Amano (1986), is doubtful since T. speciosa is not cited as a host of E. cichoracearum for Estonia in Karis (1987). Bolay (2005) recorded G. cichoracearum on T. speciosa from Switzerland, Boyle et al. (2007) listed six German collections from Bavaria and Saxony, and Dietrich (2014) reported an additional location in Saxony. Since that time, the T. speciosa powdery mildew has quickly spread in southern parts of Germany. ...
... lat.) from the native distribution zone of T. speciosa, including the Caucasus region and Eastern Europe, suggesting that G. inulae is widespread in the natural range of this host. Recently, G. inulae on T. speciosa has been found in Germany, i.e. from Bavaria in 2004 and Saxony in 2006 (Boyle et al. 2007). Since that time, powdery mildew on Telekia has become widespread in Germany, above all in Bavaria and Saxony. ...
In central Europe, including Germany, Telekia speciosa (heart-leaved oxeye) is a synanthropic, non-native plant species commonly grown as an ornamental plant. A powdery mildew has recently been introduced on this host in Germany. This powdery mildew has previously been assigned to Golovinomyces cichoracearum (≡ Erysiphe cichoracearum ) sensu lato. Two German specimens of powdery mildew on Telekia have been sequenced and phylogenetically analysed. The analyses revealed that the German sequences obtained from the Telekia powdery mildew are identical with a sequence retrieved from Golovinomyces inulae on Pentanema salicinum (≡ Inula salicina ) collected in Switzerland. Furthermore, holotype material of G. inulae , described from Korea, has been sequenced, which confirmed G. inulae as causative agent of the Telekia powdery mildew. The current distribution of G. inulae in Germany is briefly discussed including a first report of this pathogen from Austria.
... Golovinomyces inulae on Telekia speciosa has spread in Germany in the last decades. The first record dates to Boyle et al. (2007). Currently, this powdery mildew is relatively common on Telekia speciosa in Germany. ...
Powdery mildews are a monophyletic group of obligate plant pathogenic fungi in the family Erysiphaceae. Powdery mildews are economically important in that they cause damage to many agriculturally significant crops and plants in ecologically important habitats. In this contribution, we introduce a new series of publications focusing on the phylogeny and taxonomy of this group, with an emphasis on specimens collected from North America. The first part of the series focuses on the genus Golovinomyces and includes a section detailing the powdery mildew species concept. We conducted analyses of Golovinomyces spp. with available rDNA sequence data from GenBank and supplemented the data set with rDNA (ITS, 28S, IGS) as well as protein-coding (GAPDH) data from 94 North American collections. Many of the species evaluated are included in phylogenetic and morphological analyses for the first time, including the American species G. americanus, G. brunneopunctatus, G. californicus, G. greeneanus, G. hydrophyllacearum, and G. sparsus. A special emphasis was placed on acquiring ex-type or ex-epitype sequences or presenting reference sequences for phylogenetic-taxonomic purposes. Three new species, G. eurybiarum, G. galiorum, and G. malvacearum, are described, and the new combinations G. fuegianus, G. mutisiae, and G. reginae are introduced. Ex-holotype sequences of Erysiphe sparsa (≡ G. sparsus) reveal that it should be reduced to synonymy with G. ambrosiae, and ex-epitype sequences of G. valerianae reveal that it should be reduced to synonymy with G. orontii. Multiple epitypes are designated with ex-epitype sequences.
Members of the Erysiphales are conspicuous phytoparasitic microfungi during the late summer and autumn period. A lot of literature sources were evaluated by BRANDENBURGER & HAGEDORN (2006). They give an overview of the floristic data of the separate Erysiphales-host-combinations in the individual federal states of Germany. Unfortunately, most of the articles published after 2000 and especially many unpublished data assembled since 1970s have not been included. Therefore the present list is a supplementa-tion to BRANDENBURGER & HAGEDORN (2006). A total of 1.994 new records of Erysiphales-host-combinations from all federal states of Germany the Saarland excluded have been listed. Most of them are from Brandenburg, Saxony and Saxony-Anhalt. In contrast to that obvious deficits clearly exist in the federal states of Bremen, Hamburg, Hessen and Mecklenburg-Western Pomerania. Compared to BRANDENBURGER & HAGEDORN (2006) only the first record of the respective Erysiphales-host-combination in the particular federal states of Germany is given. If the last record of an Erysiphales-host-combination is older than 25 years in some cases a new record is also listed. Since 2000 17 Erysiphales taxa have been collected in Germany for the first time. All in all 97 matrices novae especially different cultivated plants are compiled. 49 resp. 59 fungus-host-combinations are new for Europe and Central Europe and furthermore 199 combinations are new for Germany. 54 records are the first exact data for the occurrence of the fungus- host-combination in Germany. These combinations have been listed globally in the literature for Germany until today but without any exact data. A part of the given records offer double infections with other phytoparasitic micro-fungi. These infections have been represented summarily. A list of fungus-host-combinations published in the literature but not clearly recorded for Germany is given.
