Ultrastructure of pinealocytes of the cotton rat, Sigmodon hispidus

Shoji Matsushima; Yuko Morisawa; Larry J. Petterborg; Jeannette W. Zeagler; Russel J. Reiter

doi:10.1007/BF00233652

Ultrastructure of pinealocytes of the cotton rat, Sigmodon hispidus

Shoji Matsushima, Yuko Morisawa, Larry J. Petterborg, Jeannette W. Zeagler, Russel J. Reiter

Department of Cell Systems & Anatomy

Research output: Contribution to journal › Article › peer-review

18 Scopus citations

Abstract

Fine structural features of pinealocytes of cotton rats (Sigmodon hispidus) were examined. Golgi complexes, mitochondria, endoplasmic reticulum and polysomes are usual organelles seen in the perikaryonal cytoplasm of pinealocytes. Many non-granulated vesicles (40 to 80 nm in diameter) and a few granulated vesicles (about 100 nm in diameter) are associated with the Golgi cisternae. Occasionally, the cisternae contain granular materials. The perikaryonal cytoplasm of pinealocytes is characterized by the presence of inclusion bodies. These bodies are usually round in shape, not bounded by a limiting membrane and composed of fine granular or filamentous materials of high electron-opacity, which are similar in appearance to the substance seen in the nucleolonema. Pinealocyte processes, filled with abundant non-granulated vesicles and some granulated vesicles, are mainly found within the parenchyma and occasionally in perivascular spaces.

Original language	English (US)
Pages (from-to)	407-416
Number of pages	10
Journal	Cell and Tissue Research
Volume	204
Issue number	3
DOIs	https://doi.org/10.1007/BF00233652
State	Published - Dec 1979

Keywords

Cotton rat (Sigmodon hispidus)
Pineal gland
Ultrastructure

ASJC Scopus subject areas

Pathology and Forensic Medicine
Cell Biology
Histology

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10.1007/BF00233652

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title = "Ultrastructure of pinealocytes of the cotton rat, Sigmodon hispidus",

abstract = "Fine structural features of pinealocytes of cotton rats (Sigmodon hispidus) were examined. Golgi complexes, mitochondria, endoplasmic reticulum and polysomes are usual organelles seen in the perikaryonal cytoplasm of pinealocytes. Many non-granulated vesicles (40 to 80 nm in diameter) and a few granulated vesicles (about 100 nm in diameter) are associated with the Golgi cisternae. Occasionally, the cisternae contain granular materials. The perikaryonal cytoplasm of pinealocytes is characterized by the presence of inclusion bodies. These bodies are usually round in shape, not bounded by a limiting membrane and composed of fine granular or filamentous materials of high electron-opacity, which are similar in appearance to the substance seen in the nucleolonema. Pinealocyte processes, filled with abundant non-granulated vesicles and some granulated vesicles, are mainly found within the parenchyma and occasionally in perivascular spaces.",

keywords = "Cotton rat (Sigmodon hispidus), Pineal gland, Ultrastructure",

author = "Shoji Matsushima and Yuko Morisawa and Petterborg, {Larry J.} and Zeagler, {Jeannette W.} and Reiter, {Russel J.}",

year = "1979",

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AU - Matsushima, Shoji

AU - Morisawa, Yuko

AU - Petterborg, Larry J.

AU - Zeagler, Jeannette W.

AU - Reiter, Russel J.

PY - 1979/12

Y1 - 1979/12

N2 - Fine structural features of pinealocytes of cotton rats (Sigmodon hispidus) were examined. Golgi complexes, mitochondria, endoplasmic reticulum and polysomes are usual organelles seen in the perikaryonal cytoplasm of pinealocytes. Many non-granulated vesicles (40 to 80 nm in diameter) and a few granulated vesicles (about 100 nm in diameter) are associated with the Golgi cisternae. Occasionally, the cisternae contain granular materials. The perikaryonal cytoplasm of pinealocytes is characterized by the presence of inclusion bodies. These bodies are usually round in shape, not bounded by a limiting membrane and composed of fine granular or filamentous materials of high electron-opacity, which are similar in appearance to the substance seen in the nucleolonema. Pinealocyte processes, filled with abundant non-granulated vesicles and some granulated vesicles, are mainly found within the parenchyma and occasionally in perivascular spaces.

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KW - Cotton rat (Sigmodon hispidus)

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Ultrastructure of pinealocytes of the cotton rat, Sigmodon hispidus

Abstract

Keywords

ASJC Scopus subject areas

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