Cytological effects of salt‐stress and localization of transport adenosine triphosphatase in the lateral nasal glands of the desert iguana, Dipsosaurus dorsalis

Wiley - Tập 180 Số 2 - Trang 285-297 - 1974
Richard A. Ellis1, Clarence C. Goertemiller1
1Division of Biological and Medical Sciences, Brown University, Providence, Rhode Island 02912

Tóm tắt

Abstract

Each of the bilateral nasal glands of Dipsosaurus is surrounded by a thin cartilagenous capsule. A short excretory duct leads to the vestibule of the nasal cavity. This duct connects with the branched principal secretory tubules that end in small terminal segments. Tall columnar cells line the principal secretory tubules, but mucous and tuft cells form the terminal elements. In salt‐stressed animals the spaces between dark and light principal secretory cells are dilated. Potassium‐dependent, ouabain sensitive, adenosine triphosphatase (Ernst, '72a) was localized within the lateral plications of the principal secretory cells and in the apical microvilli of the tuft cells. These observations are consistent with current concepts of ion transport in salt‐secreting epithelia, and they suggest that the tuft cells, not found in avian salt glands, play a role in the unusual physiology (Templeton, '66) of the nasal glands in this reptile.

Từ khóa


Tài liệu tham khảo

10.1002/aja.1001180203

Barnitt A. E.1972The effects of hyperkalemic stress on the cytology histology and histochemistry of the nasal salt gland of the lizard Sauromalus obesus (Baird). Dissertation Abstracts 33:960‐B.

Berridge J. J., 1972, Transporting Epithelia, 8

Crowe J. H., 1970, Structure of lizard salt glands, Am. Zool., 10, 556

10.1038/210817a0

Diamond J. M., 1966, Studies on the structural basis of water transport across epithelial membranes, Fed. Proc., 25, 1458

10.1016/0014-4827(60)90270-6

Dunson W. A., 1969, Exocrine Glands, 83

10.1126/science.144.3624.1340

10.1177/20.1.13

10.1177/20.1.23

Karnovsky M. J., 1965, A formaldehyde‐glutaraldehyde fixative of high osmolarity for use in electron microscopy, J. Cell Biol., 27, 137A

Komnick H., 1965, Sekretion und Exkretion, 289

10.2307/2423863

Philpott C. W., 1964, A comparative study of the histology and fine structure of the nasal salt secreting gland of the lizard, Dipsosaurus, Anat. Rec., 148, 394

10.1083/jcb.33.3.C7

10.1083/jcb.17.1.208

10.1161/01.CIR.21.5.955

10.1002/aja.1000830202

10.1016/0010-406X(64)90165-3

10.1016/0010-406X(66)90240-4

10.1007/BF00303231

Templeton J. R., 1969, Nasal and renal salt excretion in the desert iguana, Dipsosaurus dorsalis, Am. Zool., 9, 587

Van Lennep E. W., 1970, Fine structure of the nasal salt gland in the desert lizard, Uromastix acanthinurus, Cytobiologie, 2, 47

Voelz H. G., 1962, Fine structure of Myxococcus xanthus during morphogenesis, J. Bact., 84, 943, 10.1128/jb.84.5.943-952.1962