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Research article - Peer-reviewed, 2022

Pine species determine fungal microbiome composition in a common garden experiment

Romeralo, Carmen; Martin-Garcia, Jorge; Martinez-Alvarez, Pablo; Jordan Munoz-Adalia, E.; Goncalves, Danilo Reis; Torres, Esteban; Witzell, Johanna; Javier Diez, Julio


The factors shaping the composition of microbial communities in trees remain poorly understood. We evaluated whether the core and satellite fungal communities in five pine species (Pinus radiata, Pinus pinaster, Pinus sylvestris, Pinus nigra, and Pinus uncinata) were shaped by the host species identity. Because the trees had earlier been inoculated with a fungal pathogen (Fusarium circinatum), we also explored the possibilities to detect its presence and potential co-occurrence networks. We found interspecific variation in the fungal community composition and abundance among the different tree species and the existence of a core microbiome that was independent of the host species. The presence of F. circinatum was confirmed in some samples through qPCR but the pathogen did not co-occur with a specific fungal community. The results highlight the importance of host species as a determinant of microbiome assembly in common environments.


Fungal community; Fungal co-occurrence; Next-generation sequencing; Pine pitch canker; Real-time PCR; Metagenomics; Microbial community

Published in

Fungal Ecology
2022, volume: 56, article number: 101137

Authors' information

Romeralo Tapia, Carmen (Romeralo, Carmen)
Swedish University of Agricultural Sciences, Southern Swedish Forest Research Centre
Universidad de Valladolid
Instituto Nacional Investigacion Tecnologia Agraria Alimentaria (INIA)
Martin-Garcia, Jorge
Universidad de Valladolid
Martínez-Alvarez, Pablo
Gobierno Cantabria
Jordan Munoz-Adalia, E.
Centre Tecnologic Forestal de Catalunya (CTFC)
Goncalves, Danilo Reis
Carl von Ossietzky Universitat Oldenburg
Torres, Esteban
Centro de Investigacion Forestal de Lourizan
Witzell, Johanna
Swedish University of Agricultural Sciences, Southern Swedish Forest Research Centre
Witzell, Johanna
Linnaeus University
Javier Diez, Julio
Universidad de Valladolid

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