7 Blastocladiomycota

  • Timothy Y. JamesEmail author
  • Teresita M. Porter
  • W. Wallace Martin
Part of the The Mycota book series (MYCOTA, volume 7A)


The Blastocladiomycota (blastoclads) are a phylum of zoosporic fungi that include diverse taxa such as the model water mold Allomyces. The 14 genera of blastoclads form a monophyletic group that is phylogenetically distinct from other Fungi and unique in having an alternation of haploid and diploid generations. Blastoclads can be distinguished from other zoosporic true fungi (e.g., Chytridiomycota) on the basis of the ultrastructure of their uniflagellated zoospores. These ultrastructural characters are also taxonomically informative at the generic level. The precise placement of Blastocladiomycota in the fungal tree of life is uncertain but has a large bearing on the evolution of several traits, such as an intact nuclear envelope during mitosis and heterothallism with mating types. Environmental DNA studies suggest that blastoclads may be enriched in suboxic or anaerobic environments, and although some species are known to be obligate fermenters, none is known to be obligately anaerobic.


Motile Cell Flagellar Apparatus Zoosporic Fungus Ultrastructural Character Heterothallic Species 
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-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  • Timothy Y. James
    • 1
    Email author
  • Teresita M. Porter
    • 2
  • W. Wallace Martin
    • 3
  1. 1.Department of Ecology and Evolutionary BiologyUniversity of MichiganAnn ArborUSA
  2. 2.Biology Department, Duke University, Durham, NC 27708, USA and Department of BiologyMcMaster UniversityHamiltonCanada
  3. 3.Department of BiologyRandolph-Macon CollegeAshlandUSA

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