Community structure of Phialocephala fortinii s. lat. in European tree nurseries, and assessment of the potential of the seedlings as dissemination vehicles

Abstract

Patterns of colonization of conifer roots by dark septate endopyhtes of the Phialocephala fortinii s. lat. species complex in nurseries in Switzerland and Lithuania were studied. The potential for man-mediated genotype flow was estimated for two Swiss nurseries based on customers' addresses and the number of delivered plants. Two hundred and forty-nine strains from three Swiss and five Lithuanian nurseries and an afforestation site were characterized using a combination of inter-simple sequence repeat-anchored PCR (ISSR-PCR), single-copy RFLP analysis, and sequence analysis. P. fortinii s. lat. was abundant in nursery seedlings, but the frequency of seedlings colonized varied considerably among and within nurseries. Ten cryptic species (CSP) of P. fortinii s. lat. were identified, including four hitherto undiscovered CSP. P. helvetica was the dominant species in Swiss nurseries, whereas P. fortinii s. str. was the most abundant species in Lithuanian nurseries and the afforestation site. Swiss nurseries deliver plants over distances of more than 200 km indicating the high potential for man-mediated genotype flow in P. fortinii s. lat. (C) 2008 The British Mycological Society. Published by Elsevier Ltd. All rights reserved.

Keywords

cryptic species; dark septate endophytes; diversity; gene flow; Picea abies; Pinus sylvestris; soil fungus

Published in

Mycological Research
2008, volume: 112, number: 6, pages: 650-662
Publisher: Elsevier

SLU Authors

• Menkis, Audrius

  • Department of Forest Mycology and Plant Pathology, Swedish University of Agricultural Sciences
    

Global goals (SDG)

SDG15 Life on land

UKÄ Subject classification

Forest Science

Publication identifier

• DOI: https://doi.org/10.1016/j.mycres.2007.12.003

Permanent link to this page (URI)

https://res.slu.se/id/publ/18384