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    Lycopodiella inundata: insights into plant-fungal associations in early vascular plants

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    Authors
    Kowal, J
    Duckett, J
    Jacob, A
    Rimington, W
    Bidartondo, M
    Field, K
    Schornack, S
    Pressel, S
    Issue date
    2017-03-07
    Submitted date
    2017-10-09
    Subject Terms
    vascular plants
    plant-fungus interactions
    Lycopodiella inundata
    mucuromycotina
    Endogone
    
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    Abstract
    Recent studies have revealed that extant basal vascular plants associate with a wide range of Mucoromycotina and/or Glomeromycota fungi, paralleling the same in non-vascular liverworts and hornworts. This dispels the long-held paradigm that these early diverging lineages harbour Glomeromycota exclusively. Endophytes belonging to both fungal lineages have also been reported, for the first time, in a Devonian plant (Horneophyton ligneri). Together these discoveries point to much more diverse plant-fungus interactions in early vascular plants than previously assumed, however our understanding of these remains limited. In order to gain further insights into these key partnerships, especially those involving the early diverging Mucoromycotina, we are developing the lycophyte Lycopodiella inundata as an experimental system. L. inundata sporophytes have been shown to harbour solely Mucoromycotina fungi but equally fundamental, the identity of its gametophyte endophyte remains unknown. Using molecular and cytological approaches, we confirm that young L. inundata sporophytes are colonized exclusively by Mucoromycotina and show that the cytology of colonisation - consisting of both inter- and intracellular phases - closely resembles that in Haplomitriopsida liverwort-Mucoromycotina partnerships and the corm of H. ligneri. Our current isolation, resynthesis and molecular studies will provide further insights into both host and fungi specificity.
    Citation
    J. Kowal, J. Duckett, A. Jacob, W. Rimington, M. Bidartondo, K. Field, S. Schornack, S. Pressel; Lycopodiella inundata: insights into plant-fungal associations in early vascular plants. The Rhynie Chert – our earliest terrestrial ecosystem revisited (6th – 7th March 2017)
    URI
    http://hdl.handle.net/10141/622772
    Additional Links
    https://royalsociety.org/science-events-and-lectures/2017/03/rhynie-chert/
    Type
    Conference Proceedings
    Item Description
    This is a poster presented The Rhynie Chert – our earliest terrestrial ecosystem revisited. For more information on the conference consult the above links.
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