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Ultrastructure of Erythrophores and Xanthophores of the Siamese Fighting Fish, Betta splendens

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Title: Ultrastructure of Erythrophores and Xanthophores of the Siamese Fighting Fish, Betta splendens
Authors: Khoo, Gideon
Lim, Tit Meng
Phang, Violet P.E.
Keywords: ultrastructure
Betta splendens
LC Subject Headings: Fish culture--Israel.
Fish culture.
Issue Date: 2012
Series/Report no.: The Israeli Journal of Aquaculture - Bamidgeh
Abstract: The ultrastructural morphology of brightly colored pigment cells (chromatophores) of Siamese fighting fish, Betta splendens, was investigated by transmission electron microscopy. The major pigment cells in the epidermis and dermis of the red and golden strains were erythrophores and xanthophores, respectively. Specific combinations of these chromatophores formed the basis of pigmentation patterns in both strains. The ultrastructure of the erythrophores was characterized by ellipsoidal electron-lucent vesicles that had limiting membranes and inner lamellae. The latter appeared whorl-like due to a concentric arrangement of parallel membranes. The xanthophores contained small and large cytoplasmic vesicles that appeared hollow and electron-lucent, with some vesicles displaying slightly electron dense particles. Sections of some large vesicles also revealed a very thin membrane enveloping these droplet-like vesicles.
Pages/Duration: 7 pages
ISSN: 0792-156X
Appears in Collections:Volume 64, 2012

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