Mycological Progress

, Volume 12, Issue 2, pp 291–304

Spatio-temporal dynamics of endophyte diversity in the canopy of European ash (Fraxinus excelsior)

  • Almut Scholtysik
  • Martin Unterseher
  • Peter Otto
  • Christian Wirth
Original Article

DOI: 10.1007/s11557-012-0835-9

Cite this article as:
Scholtysik, A., Unterseher, M., Otto, P. et al. Mycol Progress (2013) 12: 291. doi:10.1007/s11557-012-0835-9

Abstract

Leaf-inhabiting endophytic fungi of Fraxinus excelsior growing in a floodplain forest were isolated during 2008 to investigate vertical community structure, species richness and seasonal variation. The analysis of 848 fungal endophytes from 213 leaves resulted in 50 different species. In the understorey, infection density and species richness were higher than in the crowns of mature trees throughout the whole vegetation period. Within tree crowns, sun-exposed leaves of the top canopy exhibited the lowest infection rates. Most species were rare or absent in spring and in the light crowns and frequent in autumn and the understorey. However, some species, especially the two most frequent, Alternaria infectoria and A. alternata, deviated from these patterns. Young leaves were nearly free of endophytes. Apparently, the subsequent infection and establishment of fungi strongly depend on microclimatic parameters and leaf characters, which create highly variable spatial and temporal colonisation patterns within an individual tree.

Keywords

Endophytic fungiTemperate deciduous forestForest canopyDiversitySpecies richness estimation

Copyright information

© German Mycological Society and Springer 2012

Authors and Affiliations

  • Almut Scholtysik
    • 1
  • Martin Unterseher
    • 2
  • Peter Otto
    • 3
  • Christian Wirth
    • 3
  1. 1.Institute for BiologyFreie Universität BerlinBerlinGermany
  2. 2.Institute of Botany and Landscape EcologyErnst-Moritz-Arndt-University GreifswaldGreifswaldGermany
  3. 3.Department of Special Botany and Functional Biodiversity ResearchUniversity of LeipzigLeipzigGermany