Electron Microscopic Observation of the Subcommissural Organ in the Soft-shelled Turtle, &lt;i&gt;Amyda japonica&lt;/i&gt;

Murakami, Masahirô; Okita, Sanae; Nagano, Yoshinobu

doi:10.1679/aohc1950.31.199

Arch. Histol. Jap., Arch. Histol. Jpn

1970

DOI: 10.1679/aohc1950.31.199

|View full text |Cite

Electron Microscopic Observation of the Subcommissural Organ in the Soft-shelled Turtle, <i>Amyda japonica</i>

Masahirô Murakami

Sanae Okita

Yoshinobu Nagano

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

1970

1987

Publication Types

Select...

Article6

Relationship

Self Cite1

Independent5

Authors

Journals

Cited by 7 publications

(1 citation statement)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In such lower vertebrates as the reptile, there seems to be, in addition to the apical secretion described, a basal secretion directed to the blood stream through the basal process of the ependymal cell (MURAKAMI, NAKAYAMA and TANAKA, 1969;MURAKAMI, OKITA and NAGANO, 1970).…”

mentioning

confidence: 99%

The Fine Structure of the Subcommissural Organ of the Human Fetus

Murakami

Nakayama

Shimada

et al. 1970

Arch. Histol. Jap., Arch. Histol. Jpn

Self Cite

View full text Add to dashboard Cite

mentioning

confidence: 99%

The Fine Structure of the Subcommissural Organ of the Human Fetus

Murakami

Nakayama

Shimada

et al. 1970

Arch. Histol. Jap., Arch. Histol. Jpn

Self Cite

View full text Add to dashboard Cite

Preparation and discharge of secretion in the subcommissural organ of the rat

1984

View full text Add to dashboard Cite

The secretion of the subcommissural organ (SCO) of the rat was studied by means of immunocytochemistry at the electron-microscopic level with the use of (1) the polar embedding medium Lowicryl K4M at -30 degrees C, (2) the protein A-gold technique, and (3) a rabbit antiserum against bovine Reissner's fiber (see Sterba et al. 1981). Two different substructures of the ependymal and the hypendymal SCO-cells display a positive immunocytochemical reaction: (1) sacs containing flocculent secretion, which originate from the granular endoplasmic reticulum, and (2) vacuoles filled with fine granular secretion, which are pinched off from the Golgi apparatus. The secretory material of the sacs and the vacuoles is discharged both (i) apically into the cerebrospinal fluid and (ii) basally into intercellular spaces of the SCO-hypendyma. The apically released secretion is condensed to a lamina-like formation, which more caudally assumes the form of Reissner's fiber. The route of the basally released secretion remains, however, vague. The "periodically striated bodies", which were thought to be morphological mediators of the discharge of the secretion into the capillaries, are never labeled by gold particles.

show abstract

Morphological evidence for the presence of two cell types in the ependyma of the subcommissural organ of the snake, Natrix maura

Fernández-Llébrez

Becerra

et al. 1984

Cell Tissue Res.

View full text Add to dashboard Cite

Two different types of ependymal cells were found in the subcommissural organ (SCO) of Natrix maura. Most secretory cells showed morphological features resembling the general structure and ultrastructure of cells in the SCO of other vertebrates. This report describes a second population of cells lining a portion of the dorsal groove of the SCO. These cells were not selectively stained by chromalum-hematoxylin and, under the electron microscope, they were characterized by scarce surface differentiations, sparse apical cytoplasm and short basal processes. Flat, parallel cisternae of the rough endoplasmic reticulum produced vesicles that appeared to be transported to the well-developed Golgi apparatus. Dense secretory granules about 200 nm in diameter were found in the Golgi region. Similar granules were seen in the vicinity of the apical plasma membrane; some of them opened toward the ventricle. All these characteristics clearly differentiate this cell group from the other secretory cells lining the SCO laterally and ventrally.

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Electron Microscopic Observation of the Subcommissural Organ in the Soft-shelled Turtle, <i>Amyda japonica</i>

Cited by 7 publications

References 20 publications

The Fine Structure of the Subcommissural Organ of the Human Fetus

The Fine Structure of the Subcommissural Organ of the Human Fetus

Preparation and discharge of secretion in the subcommissural organ of the rat

Morphological evidence for the presence of two cell types in the ependyma of the subcommissural organ of the snake, Natrix maura

Contact Info

Product

Resources

About