Fine structure of the corpuscles of stannius of the trout, Salmo gairdneri: Structural changes in response to increased environmental salinity and calcium ions

Meats, Marian; Ingleton, P. M.; Jones, I.Chester; Garland, Hugh; Kenyon, Christopher J.

doi:10.1016/0016-6480(78)90084-9

Cited by 39 publications

(25 citation statements)

References 16 publications

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“…This is in conformity with the reports of Wendelaar Bonga et al (1976Bonga et al ( , 1980 and Meats et al (1978) who have reported indications for a reduction of secretory activity of type-2 cells (AF-negative) of CS from fish transferred from freshwater to seawater. These studies including the present study are contrary to the report of Aida et al (1980) who have noticed degranulated type-2 cells in CS of Oncorhynchus kisutch maintained in organ culture in media containing high calcium.…”

Section: Discussionsupporting

confidence: 93%

Vitamin D3- Induced Histological Changes in the Corpuscles of Stannius of a Freshwater Catfish, Heteropneustes Fossilis Kept Either in Artificial Freshwater, Calcium-rich Freshwater or Calciumdeficient Freshwater

Singh

Kumar

1996

Okajimas Folia Anatomica Japonica

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Summary: Vitamin D3 (50I.U./100 g body wt) was injected day intraperitoneally to the fish H. fossilis maintained in artificial freshwater, calcium-rich freshwater and calcium deficient freshwater. The animals were killed on day 1, 3, 5, and 10. The serum calcium levels were estimated and CS were fixed for histological studies.Administration of vitamin D3 induced hypercalcemia in the fish kept in all the three different media.The AF-positive cells of CS of vitamin D3 treated specimens kept in artificial freshwater, calcium-rich freshwater and calcium-deficient freshwater depict hyperactivity which is expressed by their degranulation and increased nuclear volume.The AF-negative cells of CS of vitamin D3-treated fish kept in artificial freshwater have not shown any change, however, the AF-negative cells of the fish treated with vitamin D3 and maintained in calcium-rich freshwater and calciumdeficient freshwater exhibit a decrease in their nuclear volume.Corpuscles of Stannius (CS) are endocrine tissue which exist only in the kidneys of some holostei and teleostei. Functional aspects of this gland is not yet well understood but the studies of Wendelaar Bonga and

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Section: Discussionsupporting

confidence: 93%

Vitamin D3- Induced Histological Changes in the Corpuscles of Stannius of a Freshwater Catfish, Heteropneustes Fossilis Kept Either in Artificial Freshwater, Calcium-rich Freshwater or Calciumdeficient Freshwater

Singh

Kumar

1996

Okajimas Folia Anatomica Japonica

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“…The ultrastructure of the cells is similar to the description given by Meats et al (1978) for this species. The cell bodies of the type-2 cells differ in shape, which varies from ovoid to slender and stellate (Fig.…”

Section: Rainbow Troutsupporting

confidence: 74%

“…Type-1 cells are thought to produce the hypocalcemic principle (Wendelaar Bonga et al 1980;Urasa and Wendelaar Bonga 1985;Kaneko et al 1988). They become activated upon transfer of euryhaline fish from fresh water to seawa ter (Cohen et al 1975;Wendelaar Bonga et al 1976;Meats et al 1978). This activation is related to the change in ambi ent Ca2~ (Wendelaar Bonga et al 1976;Meats et al 1978), as it does not occur when fish are transferred from fresh water to calcium-deficient seawater (Cohen et al 1975;Wendelaar Bonga et al 1980).…”

mentioning

confidence: 99%

“…They become activated upon transfer of euryhaline fish from fresh water to seawa ter (Cohen et al 1975;Wendelaar Bonga et al 1976;Meats et al 1978). This activation is related to the change in ambi ent Ca2~ (Wendelaar Bonga et al 1976;Meats et al 1978), as it does not occur when fish are transferred from fresh water to calcium-deficient seawater (Cohen et al 1975;Wendelaar Bonga et al 1980). This cell-type is also activated in high-calcium fresh water or during ovarian maturation, conditions associated with hypercalcemia (Ur asa and Wendelaar Bonga 1985Bonga , 1987.…”

mentioning

confidence: 99%

“…This cell-type is also activated in high-calcium fresh water or during ovarian maturation, conditions associated with hypercalcemia (Ur asa and Wendelaar Bonga 1985Bonga , 1987. Conversely, type-2 cells are not affected by changes in the calcium content of the ambient water (Wendelaar Bonga et al 1976Meats et al 1978), and their activity is reduced by fresh water to seawater transfer (Meats et al 1978;Wendelaar Bonga et al 1976;. 652 Although ultrastructural evidence may be advanced for the presence of two cell-types in the CS, conclusive physio logical evidence that the structurally different cell-types are also functionally different has not been presented so far.…”

mentioning

confidence: 99%

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Immunocytochemical localization of hypocalcin in the endocrine cells of the corpuscles of Stannius in three teleost species (trout, flounder and goldfish)

et al. 1989

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Summary. In order to identify the cell-type responsible for the production of hypocalcin (the recently isolated hypocalcemic hormone of teleost Fish), the corpuscles of Stannius (CS) of trout, flounder and goldfish, were immunocytochemically stained with antisera raised against trout hypo calcin. The secretory granules of the type-1 cells of the CS, considered to be the hypocalcin-producing cells, showed intense immunoreactivity in all species examined. However, in trout and flounder, the secretory granules produced by the type-2 cells, which have been suggested to represent a functionally different cell-type, also showed an intense immunoreactivity. In goldfish, no type-2 cells were ob served. We tentatively conclude that type-1 and type-2 cells represent structurally different forms of the same functional cell-type.

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Microvascularization of corpuscles of stannius in teleost fishes

Lametschwandtner

1995

Microscopy Res & Technique

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Blood supply and microvascular patterns of Stannius corpuscles were studied by scanning electron microscopy of vascular corrosion casts in the teleost fishes Blennius pavo, Zosterisessor ophiocephalus, and Gasterosteus aculeatus. Microvascular casts demonstrated that Stannius corpuscles--depending on their location--have an arterial supply derived either directly from the dorsal aorta, from the trunk of the first ventral segmental artery of the tail, or from a renal artery. Supplying arteries form a capsular capillary bed and a parenchymal capillary bed; both are composed of fine, freely anastomosing vessels with a homogeneous isotropic distribution. Central venules arise deep in the corpuscles. In the capsule, they form a single vein which drains into a segmental vein or directly into the caudal vein. Stanniocalcin, the hormone of the Stannius corpuscle, enters the renal circulation and reaches its main target organs, the gills, via posterior cardinal veins--heart--ventral aorta. Occasionally, some capsular venules empty into the trunk kidney peritubular venules. Capillaries are fenestrated and are embraced by pericytes with long, slender processes. The perivascular space contains collagen fibrils. Nerve fibers are found close to endothelial cells and pericytes. Vascular patterns of Stannius corpuscles are compared with those of the rat parathyroid glands and are discussed in respect to physiological implications.

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Fine structure of the corpuscles of stannius of the trout, Salmo gairdneri: Structural changes in response to increased environmental salinity and calcium ions

Cited by 39 publications

References 16 publications

Vitamin D3- Induced Histological Changes in the Corpuscles of Stannius of a Freshwater Catfish, Heteropneustes Fossilis Kept Either in Artificial Freshwater, Calcium-rich Freshwater or Calciumdeficient Freshwater

Vitamin D3- Induced Histological Changes in the Corpuscles of Stannius of a Freshwater Catfish, Heteropneustes Fossilis Kept Either in Artificial Freshwater, Calcium-rich Freshwater or Calciumdeficient Freshwater

Immunocytochemical localization of hypocalcin in the endocrine cells of the corpuscles of Stannius in three teleost species (trout, flounder and goldfish)

Microvascularization of corpuscles of stannius in teleost fishes

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