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Septal Ultrastructure and Ascomycete Systematics

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Ascomycete Systematics

Part of the book series: NATO ASI Series ((NSSA,volume 269))

Summary

Some of the most revolutionary changes in the systematics of various divisions of algae and certain classes of fungi were the results of unique differences found in the ultrastructure of septa. Among the fungi, septal ultrastructure has played a significant role in helping to delineate classes and subclasses of basidiomycetes. The application of septal ultrastructure to ascomycete systematics has been limited. Yet, there are strikingly different types of septal pore organelles in various groups of ascomycetes. This presentation demonstrates that septal structures may be useful in delimiting various groups of ascomycetes. The major focus is on septal structures associated with asci, ascogenous hyphae, and excipular cells of families of Pezizales. The use of these characters to show phylogenetic linkages between the epigeous and hypogeous tuberalean Pezizales is demonstrated. Septa as taxonomic criteria in other groups of ascomycetes are also discussed.

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  1. Plant Pathology Department, University of Florida, Gainesville, Florida, 32611, USA

    J. W. Kimbrough

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  1. J. W. Kimbrough
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  1. International Mycological Institute, Egham, Surrey, UK

    David L. Hawksworth

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Kimbrough, J.W. (1994). Septal Ultrastructure and Ascomycete Systematics. In: Hawksworth, D.L. (eds) Ascomycete Systematics. NATO ASI Series, vol 269. Springer, Boston, MA. https://doi.org/10.1007/978-1-4757-9290-4_11

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  • DOI: https://doi.org/10.1007/978-1-4757-9290-4_11

  • Publisher Name: Springer, Boston, MA

  • Print ISBN: 978-1-4757-9292-8

  • Online ISBN: 978-1-4757-9290-4

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