Ultrastructure of the osteogenesis of acellular vertebral bone in the Japanese medaka, Oryzias latipes (teleostei, cyprinidontidae)

Wiley - Tập 182 Số 3 - Trang 241-249 - 1988
Sunetra Ekanayake1, Brian K. Hall1
1Department of Biology, Dalhousie University, Halifax, Nova Scotia, Canada

Tóm tắt

AbstractAn ultrastructural study by transmission electron microscopy (TEM) of the vertebrae of embryonic, larval, juvenile and mature medaka shows that each vertebra consists of a core of notochordal cells surrounded by a sheath of bone. The vertebral bone lacks either fully or partially embedded cells in the matrix throughout development. Bone matrix is secreted by a layer of cells that lies over the outer surface of the vertebral bone. During the early stages of osteogenesis, these cells secrete bone matrix all around themselves. However, because of the gradual flow of the newly synthesized bone matrix through intercellular spaces, matrix‐producing cells do not become trapped in their own secretion. In later stages of osteogenesis, these cells secrete matrix only toward the already‐deposited bone. This polarized matrix secretion allows the osteoblasts to stay always on the bone surface and never to become trapped in the matrix as osteocytes.

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Tài liệu tham khảo

Bonucci E., 1981, New knowledge on the origin, function and fate of osteoclasts, Cl in. Orthop., 158, 252

10.1002/jmor.1051930304

Enlow D. H., 1956, A comparative histological study of fossil and recent bone tissues. Part I, Tex. J. Sci., 8, 405

Enlow D. H., 1958, A comparative histological study of fossil and recent bone tissues. Part III, Tex. J. Sci., 10, 187

10.1073/pnas.83.11.4104

Groman D. B., 1982, Histology of the striped bass, Am. Fish. Soc. Monograph, 3, 66

Knight D. P., 1980, Practical Methods In Electron Microscopy, 45

10.1098/rspl.1857.0132

10.1111/j.1600-0714.1983.tb00337.x

Matui K., 1949, Illustration of the normal course of development in the fish Oryzias latipes, Zikkenkeitaigaku, 5, 32

10.1159/000141794

10.1002/aja.1001080107

10.1111/j.1749-6632.1963.tb13475.x

Romer A. S., 1977, The Vertebrate Body

10.1083/jcb.25.2.407

10.1007/BF02441217

10.1111/j.1469-7998.1986.tb03656.x

Thông tin
Thông tin xuất bản

Wiley

Tập 182 Số 3

241-249

Thông tin tác giả