TY - JOUR
T1 - On the occurrence of a myeloid body in pinealocytes of the white-footed mouse, Peromyscus leucopus - An electron-microscopic study
AU - Samarasinghe, Daya D.
AU - Petterborg, Larry J.
AU - Zeagler, Jeanette W.
AU - Tiang, Kin M.
AU - Reiter, Russel J.
PY - 1983/1/1
Y1 - 1983/1/1
N2 - The fine-structural features of pinealocytes of the white-footed mouse, Peromyscus leucopus, were examined. A single population of pineaocytes was observed in both superficial and deep components of the gland. Cells in both locations are characterized by the presence of an indented nucleus exhibiting a prominent nucleolus. The usual organelles in the perikaryon are the Golgi complexes, mitochondria, endoplasmic reticulum, polysemes, microtubules and dense-core vesicles. In addition the perikaryonal cytoplasm often contains a single myeloid body. These bodies are usually lenticular in shape, are formed of an array of flattened membranous cisternae, and are not bounded by a limiting membrane. This organelle usually lies in the vicinity of the nucleus and is infrequently associated with lipid bodies. Complex forms were also observed. The cisternae are continuous with elements of the endoplasmic reticulum at points along their expanded rims. The outer surface of the cisternal membrane exhibits a granularity or fuzziness. The cisternae may be fenestrated. Pinealocyte processes with an abundance of clear vesicles, and some dense-core vesicles and vesicle-crowned rodlets are present in the parenchyma.
AB - The fine-structural features of pinealocytes of the white-footed mouse, Peromyscus leucopus, were examined. A single population of pineaocytes was observed in both superficial and deep components of the gland. Cells in both locations are characterized by the presence of an indented nucleus exhibiting a prominent nucleolus. The usual organelles in the perikaryon are the Golgi complexes, mitochondria, endoplasmic reticulum, polysemes, microtubules and dense-core vesicles. In addition the perikaryonal cytoplasm often contains a single myeloid body. These bodies are usually lenticular in shape, are formed of an array of flattened membranous cisternae, and are not bounded by a limiting membrane. This organelle usually lies in the vicinity of the nucleus and is infrequently associated with lipid bodies. Complex forms were also observed. The cisternae are continuous with elements of the endoplasmic reticulum at points along their expanded rims. The outer surface of the cisternal membrane exhibits a granularity or fuzziness. The cisternae may be fenestrated. Pinealocyte processes with an abundance of clear vesicles, and some dense-core vesicles and vesicle-crowned rodlets are present in the parenchyma.
KW - Myeloid body
KW - Peromyscus leucopus
KW - Pinealocyte
KW - Retinal pigment epithelial cell
KW - White-footed mouse
UR - http://www.scopus.com/inward/record.url?scp=0020694066&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0020694066&partnerID=8YFLogxK
U2 - 10.1007/BF00211481
DO - 10.1007/BF00211481
M3 - Article
C2 - 6831535
AN - SCOPUS:0020694066
VL - 228
SP - 649
EP - 659
JO - Cell and Tissue Research
JF - Cell and Tissue Research
SN - 0302-766X
IS - 3
ER -