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    Devonian Fungi: Interactions with the Green Alga Palaeonitella

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    Taylor_1992.pdf (1.577Mb)
    Issue Date
    1992-11-01
    Author
    Taylor, Thomas N.
    Hass, Hagen
    Remy, Winfried
    Publisher
    Mycological Society of America
    Type
    Article
    Article Version
    Scholarly/refereed, publisher version
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    Abstract
    This paper describes three new taxa of fossil aquatic fungi preserved in 400-million-year-old Lower Devonian Rhynie Chert. All of the fungal morphotypes are attached to cells of the green alga Palaeonitella cranii. Milleromyces rhyniensis is characterized by a holocarpic, epibiotic ^oosporangium with an elongate discharge tube that penetrates the host cell wall; arising from the base of the sporangium is an extensive rhizoidal system. Stages in infection by presumed zoospores are documented. In Lyonomyces pyriformis the globose-pyriform thallus is embedded in the surface coating of the cell wall. At the base of each thallus is a single rhizoid. Krispiromyces is extramatrical, holocarpic, and characterized by a short beak-like discharge papilla. The rhizoidal system appears to be apophysate. Some of these fungi were probably saprobes, while others were deemed parasitic because of the extensive hypertrophy of some of the algal cells. Although not all life history stages are represented, the discovery of these Lower Devonian forms greatly expands our knowledge of the biology and diversity of aquatic fungi in an ancient freshwater ecosystem.
    URI
    http://hdl.handle.net/1808/17993
    DOI
    https://doi.org/10.2307/3760288
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    • Ecology & Evolutionary Biology Scholarly Works [1493]
    Citation
    Taylor, Thomas N.; Hass, Hagen; Remy, Winfried. (1992). "Devonian Fungi: Interactions with the Green Alga Palaeonitella." Mycologia, 64(6):901-910. http://www.dx.doi.org/10.2307/3760288.

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    Contact KU ScholarWorks
    785-864-8983
    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    785-864-8983

    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    Image Credits
     

     

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