Format

Send to

Choose Destination
Parasitol Res. 2019 Nov;118(11):3105-3112. doi: 10.1007/s00436-019-06454-z. Epub 2019 Sep 14.

A new species Myxodavisia jejuensis n. sp. (Myxosporea: Sinuolineidae) isolated from cultured olive flounder Paralichthys olivaceus in South Korea.

Author information

1
Department of Marine Life Science & Fish Vaccine Research Center, Jeju National University, Jeju, Jeju Self-Governing Province, 63243, Republic of Korea.
2
Faculty of Veterinary Medicine, Okayama University of Science, Imabari, Ehime, 794-8555, Japan.
3
Department of Marine Life Science & Fish Vaccine Research Center, Jeju National University, Jeju, Jeju Self-Governing Province, 63243, Republic of Korea. jehee@jejunu.ac.kr.

Abstract

A new myxosporean parasite, Myxodavisia jejuensis n. sp. (Myxozoa; Bivalvulida) is described from the urinary bladder of olive flounder Paralichthys olivaceus cultured on Jeju Island, Korea. Two long lateral appendages with whip-like extensions were attached to mature spores of triangular to semi-circular shape. The spores were measured at 13.1 ± 1.1 μm in length, 17.2 ± 1.0 μm in thickness, and 13.1 ± 1.0 μm in width. Two spherical polar capsules, with a diameter of 5.0 ± 0.4 μm, were observed on opposite sides in the middle of the spore. The suture line was straight or slightly sinuous on the middle of spores. The 18S rDNA from M. jejuensis n. sp. was used in BLAST and molecular phylogenetic analysis. The results demonstrated that M. jejuensis n. sp. was closest to Sinuolinea capsularis and that the infection site tropism was correlated with the phylogeny of marine myxosporeans. In addition, we designed specific primers to detect the 18S rDNA gene of M. jejuensis n. sp.; the results showed specific amplification in M. jejuensis n. sp. among the myxosporeans isolated from the urinary bladder of the cultured olive flounder.

KEYWORDS:

Infection site tropism; Myxodavisia jejuensis; Olive flounder; Polyphyly

PMID:
31522298
DOI:
10.1007/s00436-019-06454-z
[Indexed for MEDLINE]

Supplemental Content

Full text links

Icon for Springer
Loading ...
Support Center