Two multivalvulid myxozoans causing postmortem myoliquefaction: Kudoa megacapsula n. sp. from red barracuda (Sphyraena pinguis) and Kudoa thyrsites from splendid alfonso (Beryx splendens)

H. Yokoyama, Naoki Endo

Research output: Contribution to journalArticle

38 Citations (Scopus)

Abstract

Postmortem myoliquefaction associated with multivalvulid myxozoans was found in fillets of red barracuda (Sphyraena pinguis) and splendid alfonso (Beryx splendens). which were imported to Japan from China and South Africa, respectively. Morphological examinations of the myxozoans from the somatic muscle of red barracuda revealed that spores (30.3-44.7 μm in maximum thickness) had 4 distinct winglike valves, in which 1 extremely large (12.7 × 5.8 μm), 2 small, and 1 vestigial polar capsule were present. The small subunit ribosomal DNA sequence analysis showed that the myxozoan cluster within a clade was composed of Kudoa thyrsites, Kudoa minithyrsites, and Kudoa lateolabracis, all having stellate spores with 1 polar capsule larger than the other 3. On the basis of these characteristics, we describe this parasite as Kudoa menacapsula n. sp. Morphological and molecular analyses of the myxozoan from splendid alfonso identified it as K. thyrsites, which has been described from many marine fishes. To our knowledge, this is the first record of K. thyrsites in splendid alfonso.

Original languageEnglish
Pages (from-to)1132-1137
Number of pages6
JournalJournal of Parasitology
Volume91
Issue number5
DOIs
Publication statusPublished - 2005 Oct 1

ASJC Scopus subject areas

  • Parasitology
  • Ecology, Evolution, Behavior and Systematics

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