Co-Infection of Two Myxosporean Parasites - Parvicapsula anisocaudata and an Unidentified Myxosporean - in the Kidney of Cultured Olive Flounder, Paralichthys olivaceus

  • Cho, Jae-Bum (Department of Aquatic Life Medicine, Pukyong National University) ;
  • Lee, Mu-Kun (Department of Aquatic Life Medicine, Pukyong National University) ;
  • Huh, Min-Do (Department of Aquatic Life Medicine, Pukyong National University) ;
  • Kim, Ki-Hong (Department of Aquatic Life Medicine, Pukyong National University)
  • 발행 : 20050800

초록

Two species of myxosporean parasites - Parvicapsula anisocaudata and an unidentified myxosporean were found in the lumina of renal tubules and the tubular epithelium, respectively, from cultured olive flounder, Paralichthys olivaceus in Korea. The latter was also seen in interstitial tissue of spleen and interrenal gland of the head kidney. Group of pseudoplasmodia of P. anisocaudata were firmly attached on the epithelium of renal tubules through pseudopodia. In the renal tubule epithelium, a group of unidentified myxosporean trophozoites, which were 2-3 times larger than intraluminal trophozoites of P. anisocaudata, was observed. The parasites being burst out into the lumen was occasionally encountered with partial break of the epithelium. Although infection of P. anisocaudata and unidentified myxosporean parasites did not induce any cellular reaction of the host, occlusion of renal tubules and rupture of renal epithelium would impact negatively on the renal functions of severely infected fish.

키워드

참고문헌

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