Myxobolidae

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Myxobolidae
Mspinacurvatura.jpg
Myxobolus spinacurvatura, a species of Myxobolidae (Myxobolus)
Scientific classification e
Kingdom: Animalia
Phylum: Cnidaria
Class: Myxosporea
Order: Bivalvulida
Suborder: Platysporina
Kudo, 1919[2]
Family: Myxobolidae
Thélohan, 1892[1]

Myxobolidae is a family of myxosporean parasites which typically infect freshwater fishes, and includes the economically significant species, Myxobolus cerebralis. They have been shown to have a complex life cycle, involving an alternate stage in an invertebrate, typically an annelid or polychaete worm.[citation needed]

Morphology[]

Myxosporean spores of genera belonging to the Myxobolidae are flattened parallel to the sutural line. They typically contain two polar capsules, and have a central vacuole in which they store β-glycogen. In some genera, the spore walls are drawn out into long processes which are thought to slow sinking through the water column.[citation needed]

Actinosporean stages which have been linked to members of the Myxobolidae have a single central "style" and three processes or “tails”, around 200 micrometers long, projecting from this. A sporoplasm packet at the end of the style contains 64 germ cells surrounded by a cellular envelope. There are also three polar capsules, each of which contains a coiled polar filament.[citation needed]

Genera[]

References[]

  1. ^ Jump up to: a b Thélohan, P. (1892). Observation sur les myxosporidies et éssai de classification de ces organismes. Bulletin de la Société Philomatique de Paris, 4, 165–178.
  2. ^ Kudo, R. (1919). Studies on Myxosporidia. A synopsis of genera and species of Myxosporidia. Illinois Biological Monographs, 5.
  3. ^ Hoffman, G. & Walker, R. (1978). A new myxosporidan, Dicauda atherinodi n. g., n. sp. of the minnow, Notropis atherinoides Rafinesque. Journal of Fish Diseases, 1(4), 343–349.
  4. ^ Lom, J., Tonguthai, K. & Dyková, I. (1991). Hennegoides longitudinalis n. gen. n. sp., a myxosporean parasite of Osphronemus gourami from Thailand. Diseases of Aquatic Organisms, 11, 143–145.
  5. ^ Bütschli, O. (1882). Myxosporidia. In Bütschli, O. (Ed.), Dʳ· H. G. Bronn's Klassen und Ordnungen des Thier-Reichs, wissenschaftlich dargestellt in Wort und Bild. Erster Band. Protozoa. Leipzig: C. F. Winter'sche Verlagshandlung.
  6. ^ Kudo, R. R. (1933). A taxonomic consideration of Myxosporidia. Transactions of the American Microscopical Society, 52, 195–216.
  7. ^ Hoshina, T. (1952). Notes on some myxosporidian parasites on fishes of Japan. Journal of the Tokyo University of Fisheries, 39(1), 69–89.
  8. ^ Davis, H. S. (1944). A revision of the genus Henneguya (Myxosporidia) with descriptions of two new species. Transactions of the American Microscopical Society, 63(4), 311–320.
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