Ultrastructure, ultracytochemistry and histochemistry of the submandibular gland of the field mouse. Apodemus argenteus Temminck

Abstract

Ultrastructure, ultracytochemistry and histochemistry of the submandibular gland of the fi eld mouse. Apodemus argenteus Temminck.

Ultrastructure and histochemistry of the submandibular gland of the Japanese wood mouse (Apodemus ainu ainu tokuda).

“…TAMARIN and SREEBNY (1965) reported that dark and basal cells were distinguishable in the rat submandibular gland, and WILBORN and SHACKLEFORD (1969) demonstrated that clear, dark, and basal I and II cells were distinguishable in SD cells in the opossum. The dark cells found in the Japanese wood mouse were similar in cytological appearances to the dark cells of Apodemus aygenteus TEMMINCK (ODAJIMA, 1980). The vesicles observed in the apical region of the dark SD cells were similar in appearance to those found by RUTBERG (1961) in the SD cells of the mouse submandibular gland.…”

“…In the Japanese wood mouse, the average diameter of the male CGTs was significantly larger than that of the female, although in Apodemus argenteus TEMMINCK which is of the same genus, sex differences in the diameter of CGTs were not observed (ODAJIMA, 1980). There are some variations in the sexual dimorphism of the CGTs within the same genus.…”

“…Up to now, the vesicles observed in the apical region of the SD cells have been considered to be reabsorption vesicles by many investigators (RUTBERG, 1961;TAMARIN and SREEBNY, 1965;SHACKLEFORD and WILBORN, 1970;RIVA et al, 1976;TESTA-RIVA, 1977;ODAJIMA, 1980), although PARKS (1961), LEESON (1969), andHAND (1979) supported the view that the vesicles were involved in a secretory activity of the SD cells. The dark cells observed in the present study had microvilli on their luminal surface and vesicles associated with the surface plasma membrane.…”

“…SD cells generally have highly developed basal infoldings and a number of mitochondria arranged parallel to the infolded membranes (SCOTT and PEARSE, 1959;PARKS, 1961;RUTBERG, 1961;TANDLER, 1963;TAMARIN and SREEBNY, 1965;ICHIKAWA and ICHIKAWA, 1975;ODAJIMA, 1980), similar structures were observed in the renal proximal tubules, choroid plexus and ciliary body.…”

“…It has been reported by ODAJIMA (1980) that the CGT cells of the Apodemus aygenteus TEMMINCK submandibular gland showed amylase activity, while the CGT cells of the A. a. ainu showed neither amylase nor protease activity when examined by substrate film techniques.…”