Septal Ultrastructure and Ascomycete Systematics

  • J. W. Kimbrough
Part of the NATO ASI Series book series (NSSA, volume 269)


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.


Pore Plug Spore Ornament Septal Structure Woronin Body Ascogenous Hypha 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer Science+Business Media New York 1994

Authors and Affiliations

  • J. W. Kimbrough
    • 1
  1. 1.Plant Pathology DepartmentUniversity of FloridaGainesvilleUSA

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