Journal article
Spore ornamentation of Haplosporidium hinei n. sp. (Haplosporidia) in pearl oysters Pinctada maxima (Jameson, 1901)
Parasitology, Vol.135(4), pp.521-527
2008
Abstract
An infection of pearl oysters, Pinctada maxima, attributed to a Haplosporidium sp. by Hine and Thorne (1998) has been detected on 3 occasions and is considered to represent a serious concern to the pearling industry in Australia. The spore ornamentation of the parasite was determined by scanning electron microscopy and transmission electron microscopy. Spores of the parasite were pleomorphic, or elongated 3.5-4 mcm x 2.5-3.0 mcm in size. Two filaments were wound around the spore and originated from 2 'knob-like' posterior thickenings. Both filaments passed up one side of the spore together until just below the operculum whereupon each split and passed obliquely under the lip of the opercula lid. Each filament wrapped around the spore 4 times. The posterior thickenings seem to appear late in the development of the spore and were composed of spore wall material. A second set of branching tubular filaments composed of a different material was observed on the spore body although not on mature spores possessing a 'knob-like' posterior thickening. The ornamentation on the spores of the pearl oyster parasite was unique amongst described haplosporidian species where spore ornamentation is known. The parasite is named in this manuscript as Haplosporidium hinei n. sp.
Details
- Title
- Spore ornamentation of Haplosporidium hinei n. sp. (Haplosporidia) in pearl oysters Pinctada maxima (Jameson, 1901)
- Authors/Creators
- D. Bearham (Author/Creator) - Murdoch UniversityZ. Spiers (Author/Creator) - Murdoch UniversityS.R. Raidal (Author/Creator) - Charles Sturt UniversityJ.B. Jones (Author/Creator) - Government of Western AustraliaE.M. Burreson (Author/Creator) - Virginia Institute of Marine ScienceP.K. Nicholls (Author/Creator) - Murdoch University
- Publication Details
- Parasitology, Vol.135(4), pp.521-527
- Publisher
- Cambridge University Press
- Identifiers
- 991005540091907891
- Copyright
- © 2006 Cambridge University Press.
- Murdoch Affiliation
- Freshwater Fish Group and Fish Health Unit; School of Veterinary and Biomedical Sciences
- Language
- English
- Resource Type
- Journal article
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- Collaboration types
- Domestic collaboration
- International collaboration
- Citation topics
- 3 Agriculture, Environment & Ecology
- 3.2 Marine Biology
- 3.2.1002 Bivalve Ecology
- Web Of Science research areas
- Parasitology
- ESI research areas
- Microbiology