From leaf to continent: The multi-scale distribution of an invasive cryptic pathogen complex on oak

From leaf to continent : The multi-scale distribution of an invasive cryptic pathogen complex on oak

The spatial distribution and niche differentiation of three closely related species (Erysiphe alphitoides, Erysiphe quercicola and Erysiphe hypophylla) causing oak powdery mildew was studied at scales ranging from the European continent, where they are invasive, to a single leaf. While E. alphitoides was dominant at all scales, E. quercicola and E. hypophylla had restricted geographic, stand and leaf distributions. The large-scale distributions were likely explained by climatic factors and species environmental tolerances, with E. quercicola being more frequent in warmer climates and E. hypophylla in colder climates. The extensive sampling and molecular analyses revealed the cryptic invasion of E. quercicola in nine countries from which it had not previously been recorded. The presence of the three species was also strongly affected by host factors, such as oak species and developmental stage. Segregation patterns between Erysiphe species were observed at the leaf scale, between and within leaf surfaces, suggesting competitive effects.

Massot, Marie (author)
Toigo, Maude (author)
Fort, Tania (author)
Kaya, Ayse Gulden Aday (author)
Boberg, JohannaSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Department of Forest Mycology and Plant Pathology(Swepub:slu)49560 (author)
Braun, Uwe (author)
Capdevielle, Xavier (author)
Cech, Thomas (author)
Chandelier, Anne (author)
Christova, Petya (author)
Corcobado, Tamara (author)
Dogmus, Tugba (author)
Dutech, Cyril (author)
Fabreguettes, Olivier (author)
d'Arcier, Julie Faivre (author)
Gross, Andrin (author)
Jung, Marilia Horta (author)
Iturritxa, Eugenia (author)
Jung, Thomas (author)
Junker, Corina (author)
Kiss, Levente (author)
Kostov, Kaloyan (author)
Lehtijarvi, Asko (author)
Lyubenova, Aneta (author)
Marcais, Benoit (author)
Oliva, Jonas (author)
Oskay, Funda (author)
Pastircak, Martin (author)
Pastircakova, Katarina (author)
Piou, Dominique (author)
Saint-Jean, Gilles (author)
Sallafranque, Arnaud (author)
Slavov, Slavtcho (author)
Stenlid, JanSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Department of Forest Mycology and Plant Pathology(Swepub:slu)46689 (author)
Talgo, Venche (author)
Takamatsu, Susumu (author)
Tack, Ayco J. M.Stockholms universitet,Institutionen för ekologi, miljö och botanik(Swepub:su)atack (author)
Sveriges lantbruksuniversitetDepartment of Forest Mycology and Plant Pathology (creator_code:org_t)
Sveriges lantbruksuniversitet

About the subject

AGRICULTURAL SCIENCES: AGRICULTURAL SCI ...; and Agriculture Fore ...; and Forest Science

By the university: Stockholm University; Swedish University of Agricultural Sciences

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