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

Desprez-Loustau, Marie-Laure and Massot, Marie and Toigo, Maude and Fort, Tania and Aday Kaya, Ayse Gulden and Boberg, Johanna and Braun, Uwe and Capdevielle, Xavier and Cech, Thomas and Chandelier, Anne and Christova, Petya and Corcobado, Tamara and Dogmus, Tugba and Dutech, Cyril and Fabreguettes, Olivier and Faivre d'Arcier, Julie and Gross, Andrin and Horta Jung, Marilia and Iturritxa, Eugenia and Jung, Thomas and Junker, Corina and Kiss, Levente and Kostov, Kaloyan and Lehtijarvi, Asko and Lyubenova, Aneta and Marcais, Benoit and Oliva, Jonas and Oskay, Funda and Pastircak, Martin and Pastircakova, Katarina and Piou, Dominique and Saint-Jean, Gilles and Sallafranque, Arnaud and Slavov, Slavtcho and Stenlid, Jan and Talgo, Venche and Takamatsu, Susumu and Tack, Ayco J.M. (2018) From leaf to continent: the multi-scale distribution of an invasive cryptic pathogen complex on oak. Fungal Ecology, 36. pp. 39-50. ISSN 1754-5048

Abstract

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.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Permanent restricted access to Published version, in accordance with the copyright policy of the publisher.
Faculty / Department / School: No Faculty
Date Deposited: 28 Sep 2018 01:38
Last Modified: 02 Oct 2018 02:48
Uncontrolled Keywords: cryptic invasion, cryptic species, Erysiphe, Oak, plant pathogen, powdery mildew, Quercus, spatial distribution, emission inventory, species coexistence
Fields of Research : 06 Biological Sciences > 0605 Microbiology > 060505 Mycology
Socio-Economic Objective: E Expanding Knowledge > 97 Expanding Knowledge > 970106 Expanding Knowledge in the Biological Sciences
Identification Number or DOI: 10.1016/j.funeco.2018.08.001
URI: http://eprints.usq.edu.au/id/eprint/34817

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