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Forests 2017, 8(4), 127; doi:10.3390/f8040127

Sydowia polyspora Dominates Fungal Communities Carried by Two Tomicus Species in Pine Plantations Threatened by Fusarium circinatum

1
Sustainable Forest Management Research Institute, University of Valladolid–INIA, Avenida de Madrid 44, 34071 Palencia, Spain
2
Department of Vegetal Production and Forest Resources, University of Valladolid, Avenida de Madrid 44, 34071 Palencia, Spain
3
Calabazanos Forest Health Centre (Junta de Castilla y León), Polígono industrial de Villamuriel, S/N, Villamuriel de Cerrato, 34190 Palencia, Spain
4
Facultad de Recursos Naturales y Medio Ambiente, Bluefields Indian & Caribbean University-BICU, Avenida Universitaria, Apartado Postal N° 88 Bluefields, Nicaragua
5
Natural Resources Institute Finland (Luke), Viikinkaari 4, FI-00790 Helsinki, Finland
6
Department of Agroforestry Sciences, University of Valladolid, Avenida de Madrid 44, 34071 Palencia, Spain
*
Author to whom correspondence should be addressed.
Academic Editor: Timothy A. Martin
Received: 6 March 2017 / Revised: 12 April 2017 / Accepted: 17 April 2017 / Published: 20 April 2017
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Abstract

Bark beetles (Coleoptera, Scolytinae) carry a diverse filamentous fungal community sometimes acting as vectors or carriers of phytopathogens. In this study, mycobiota carried by two Tomicus species (Tomicus piniperda and Tomicus destruens) were investigated through (i) morphological and molecular identification of taxa; (ii) taxonomic richness, diversity, evenness, dominance and phoresy indices; (iii) ecological network analysis and (iv) statistical co-occurrence analysis. The studied mycobiota were formed by eleven taxa and showed a moderate fungal diversity with low evenness. The fungus Sydowia polyspora was significantly abundant and dominated the community. All the fungal taxa were randomly associated. Both insect species (T. piniperda and T. destruens) were collected from plantations of Pinus radiata infected by Fusarium circinatum. The ecological factors that could drive community ecology and phoretic links between fungi and bark beetles are discussed. View Full-Text
Keywords: COI gene; fungal diversity; mycobiota; phoresy; Pinus radiata; Tomicus destruens COI gene; fungal diversity; mycobiota; phoresy; Pinus radiata; Tomicus destruens
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Muñoz-Adalia, E.J.; Sanz-Ros, A.V.; Flores-Pacheco, J.A.; Hantula, J.; Diez, J.J.; Vainio, E.J.; Fernández, M. Sydowia polyspora Dominates Fungal Communities Carried by Two Tomicus Species in Pine Plantations Threatened by Fusarium circinatum. Forests 2017, 8, 127.

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