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Ultrastructure of the Sperm in Testes of the Pond Smelt (Hypomesus nipponensis)  

Kim, Jae-Goo (Faculty of Biological Science, College of Natural Sciences, Chonbuk National University)
Park, No-Kwan (Department of Life Science, Cheongju University)
Reu, Dong-Suck (Department of Life Science, Cheongju University)
Publication Information
Applied Microscopy / v.40, no.4, 2010 , pp. 253-259 More about this Journal
Abstract
The ultrastructure of sperms in testes of the pond smelt (Hypomesus nipponensis) was investigated using electron microscopes. The whitish testis was located between swim bladder and intestine. Especially, the left testis was larger than the right testis. The sperm was approximately $26\;{\mu}m$ in length. The sperm had an oval head and the acrosome was not found. The nucleus was about 400 nm in diameter and chromatin was incompletely condensed. The nuclear fossa deeply formed in sperm head and two centrioles were located in the fossa. The mitochondrium was observed only one in midpiece of the sperm and a motile flagellum consisted of an axoneme with a typical 9+2 pattern of microtubule. Also, the tail of the sperm has axonemal fins.
Keywords
Hypomesus nipponensis; Ultrastructure; Sperm; Flagellum; Axonemal fins;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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