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Friday 2 March 2012
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Is orchid distribution limited by their mycorrhizal associations?

TĚŠITELOVÁ Tamara

Orchids are obligately dependent on symbiosis with mycorrhizal fungi, mainly basidiomycetes, which provide carbon and other nutrients necessary for their seedling growth. Beside the mycorrhizal fungi, orchids interact with many presumably endophytic fungi with unknown function in their roots. However, both the orchid mycorrhizal and endophytic fungi have very diverse trophic strategies within habitats, as they could be pathogens, endophytes or mycorrhizal with other plant species, or only saprobes. My PhD generally focuses on influence of distribution of the mycorrhizal fungi on ecology and distribution of the orchids in landscape. Furthermore, the presence of many endophytic fungi in orchid roots allows to study potential interactions via common mycelial networks with surrounding plants within habitats. High-throughput sequencing with metabarcoding could provide a comprehensive environmental context by showing complete fungal species pool in the soil, plant selectivity patterns on the fungal associates and potential mycelial networking among plants, which could have strong impact on a species presence and coexistence.

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Editorial board
  • BRANDNER Melissa
    • University of Nordland
    • Bodø (Norway)
  • BROCHMANN Christian
    • National Centre for Biosystematics
    • Oslo (Norway)
  • CHARITON Anthony
    • CSIRO Land and Water
    • Lucas Heights NA (Australia)
  • DEAGLE Bruce
    • University of Victoria
    • Victoria (Canada)
  • Eric Coissac
    • LECA
    • Grenoble (France)
  • KASAPIDIS Panagiotis
    • Hellenic Center for Marine Research
    • Irakleion, Crete (Greece)
  • PAWLOWSKI Jan
    • Université de Genève
    • Genève 4 (Switzerland)
  • TABERLET Pierre
    • LECA,
    • Grenoble (France)
  • WILLERSLEV Eske
    • Centre for GeoGenetics
    • Copenhagen (Denmark)
  • ZINGER Lucie
    • IBENS
    • Paris (France)
Editorial
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    The scientists at the Mammal Research Institute PAS in Białowieża National Park hosted this year’s workshop. And our hats go off to them for the organizational skills, warmth and hospitality. During the week, experienced metabarcoders gave lectures on their trials and tribulations in the field of metabarcoding, sparking conversations between the attendees. The end of the first day saw flash talks from all participants of the event, creating an icebreaker and showing the wide variety of applications for metabarcoding, including, dietary studies, environmental health, fundamental ecology and exploration of rare and ancient habitats.
    Pierre Taberlet (who is rumoured to run 8000 PCR a day!) taught technical aspects such as DNA extraction in (...)

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