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Root morphology, anatomy and mycotrophy of the achlorophyllous Voyria aphylla (Jacq.) Pers. (Gentianaceae)

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Abstract

 Roots of Voyria aphylla only develop hairs where roots of neighboring plants or organic litter are attached. Fungal penetration occurs almost exclusively at these root-to-root attachments. The ecological significance of these immediate hyphal bridges for achlorophyllous plants is discussed. The morphological and anatomical features of V. aphylla roots and its Paris-type arbuscular mycorrhiza (AM) appear to be transitional between those of V. truncata and V. tenella. A hypothetical evolutionary progression of AM and its significance for the development of mycoheterotrophy is proposed.

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Authors and Affiliations

  1. Morphologie und Systematik der Höheren Pflanzen, Fachbereich Biologie, Philipps-Universität, 35032 Marburg, Germany e-Mail: imhof@mailer.uni-marburg.de, Tel.: +39-6421-285185, Fax: +39-6421-282057, , , , , , DE

    Stephan Imhof

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  1. Stephan Imhof
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Accepted: 1 February 1999

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Imhof, S. Root morphology, anatomy and mycotrophy of the achlorophyllous Voyria aphylla (Jacq.) Pers. (Gentianaceae). Mycorrhiza 9, 33–39 (1999). https://doi.org/10.1007/s005720050260

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  • DOI: https://doi.org/10.1007/s005720050260

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