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Sperm Ultrastructure of Bombina orientalis  

Lee, Jung-Hun (Division of Natural Science, College of Natural Sciences, Kyungnam University)
Kwon, Jung-Kyun (Electron Microscope Laboratory, College of Medicine, Hanyang University)
Publication Information
Applied Microscopy / v.35, no.4, 2005 , pp. 42-54 More about this Journal
Abstract
This study described the spermatozoa of the discoglossidae Bombina orientalis using light, scanning and transmission electron microscopes. Sperm head possess a crescent or leaf shape, with a moderately flexible head, and with a sharp anterior and posterior tips. The nucleus are a thick cone shaped in the widest middle part of nucleus, and a slender anterior and posterior of nuclear tips. The chromatin is not completely compact, but irregularly imbricated such as roof. Some nuclear lacunae, irregular in shape, are scattered within the nucleus. No neck and middle piece were developed. The flagellum is composed of 9+2 axoneme, axial rod and undulating membrane. The mitochondria were distributed only in cytoplasmic membrane around the nucleus. In particular, the nuclear rod contains bundles of fibers, the rod penetrating from anterior portion to the middle of the nucleus, is extended roughly two-thirds of the nucleus such as eyelashes shaped.
Keywords
Axial rod; Axoneme; Bombina orientalis; Nuclear rod; Undulating membrane;
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