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Lookup NU author(s): Dr Sally Glockling,
Dr Gordon Beakes
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Two new species of Haptoglossa, one zoosporic, H. northumbrica, and one aplanosporic, H. polymorpha, were isolated from samples of manure and horse dung in north-east England. The zoosporic H. northumbrica is morphologically similar to H. dickii but differs in having slightly smaller infection gun cells with a unique internal arrangement of cones in the apical missile chamber. The thallus of the aplanosporic H. polymorpha is similar to H. heteromorpha but produces three different types of aplanospore. The smaller cysts either develop into broad, arcuate gun cells or form curved adhesive cells that have a rounded base. These curved adhesive cells have very different internal ultrastructural organization. The large cysts develop into infection cells that are morphologically similar to the curved adhesive cells, but their internal structure has not yet been observed. (C) 2001 The Linnean Society of London.
Author(s): Glocking SL, Beakes GW
Publication type: Article
Publication status: Published
Journal: Botanical Journal of the Linnean Society
ISSN (print): 0024-4074
ISSN (electronic): 1095-8339
Publisher: Wiley-Blackwell Publishing Ltd.
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