Cell junctions in early embryos of squid (Loligo pealei)

Rosemary D. Ginzberg, Eleanor A. Morales, David C. Spray, Michael V. L. Bennett

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Squid embryos examined by freeze-fracture and thin-section electron microscopy exhibit identifiable gap junctions during mid-cleavage stages (stages 7-8), and junctional complexes composed of adherent appositions, elaborate septate junctions and gap junctions at slightly later stages (stages 12-13). During germinal layer establishment (stages 12-13) cytoplasmic bridges frequently link the embryonic cells. The presence of gap junctions in cleavagestage embryos provides the morphological substrate for a demonstrated pathway of direct cell-cell communication that is modifiable by experimental treatments and may be physiologically regulatable. The existence of septate junctions and adherent contacts at later stages suggests that some functional specialization, perhaps the establishment of a strongly joined framework of cells at the surface of the embryo, accompanies the formation of germinal layers.

Original languageEnglish (US)
Pages (from-to)477-484
Number of pages8
JournalCell and Tissue Research
Volume239
Issue number3
DOIs
StatePublished - Mar 1985

Fingerprint

Loligo
Decapodiformes
Intercellular Junctions
Gap Junctions
Electron microscopy
Embryonic Structures
Communication
Substrates
Cell Communication
Electron Microscopy

Keywords

  • Freeze fracture
  • Gap junctions
  • Septate junctions
  • Squid embryo

ASJC Scopus subject areas

  • Anatomy
  • Clinical Biochemistry
  • Cell Biology

Cite this

Cell junctions in early embryos of squid (Loligo pealei). / Ginzberg, Rosemary D.; Morales, Eleanor A.; Spray, David C.; Bennett, Michael V. L.

In: Cell and Tissue Research, Vol. 239, No. 3, 03.1985, p. 477-484.

Research output: Contribution to journalArticle

Ginzberg, Rosemary D. ; Morales, Eleanor A. ; Spray, David C. ; Bennett, Michael V. L. / Cell junctions in early embryos of squid (Loligo pealei). In: Cell and Tissue Research. 1985 ; Vol. 239, No. 3. pp. 477-484.
@article{4b8fadd1ccee4355ac5c63ad970c7f82,
title = "Cell junctions in early embryos of squid (Loligo pealei)",
abstract = "Squid embryos examined by freeze-fracture and thin-section electron microscopy exhibit identifiable gap junctions during mid-cleavage stages (stages 7-8), and junctional complexes composed of adherent appositions, elaborate septate junctions and gap junctions at slightly later stages (stages 12-13). During germinal layer establishment (stages 12-13) cytoplasmic bridges frequently link the embryonic cells. The presence of gap junctions in cleavagestage embryos provides the morphological substrate for a demonstrated pathway of direct cell-cell communication that is modifiable by experimental treatments and may be physiologically regulatable. The existence of septate junctions and adherent contacts at later stages suggests that some functional specialization, perhaps the establishment of a strongly joined framework of cells at the surface of the embryo, accompanies the formation of germinal layers.",
keywords = "Freeze fracture, Gap junctions, Septate junctions, Squid embryo",
author = "Ginzberg, {Rosemary D.} and Morales, {Eleanor A.} and Spray, {David C.} and Bennett, {Michael V. L.}",
year = "1985",
month = "3",
doi = "10.1007/BF00219225",
language = "English (US)",
volume = "239",
pages = "477--484",
journal = "Cell and Tissue Research",
issn = "0302-766X",
publisher = "Springer Verlag",
number = "3",

}

TY - JOUR

T1 - Cell junctions in early embryos of squid (Loligo pealei)

AU - Ginzberg, Rosemary D.

AU - Morales, Eleanor A.

AU - Spray, David C.

AU - Bennett, Michael V. L.

PY - 1985/3

Y1 - 1985/3

N2 - Squid embryos examined by freeze-fracture and thin-section electron microscopy exhibit identifiable gap junctions during mid-cleavage stages (stages 7-8), and junctional complexes composed of adherent appositions, elaborate septate junctions and gap junctions at slightly later stages (stages 12-13). During germinal layer establishment (stages 12-13) cytoplasmic bridges frequently link the embryonic cells. The presence of gap junctions in cleavagestage embryos provides the morphological substrate for a demonstrated pathway of direct cell-cell communication that is modifiable by experimental treatments and may be physiologically regulatable. The existence of septate junctions and adherent contacts at later stages suggests that some functional specialization, perhaps the establishment of a strongly joined framework of cells at the surface of the embryo, accompanies the formation of germinal layers.

AB - Squid embryos examined by freeze-fracture and thin-section electron microscopy exhibit identifiable gap junctions during mid-cleavage stages (stages 7-8), and junctional complexes composed of adherent appositions, elaborate septate junctions and gap junctions at slightly later stages (stages 12-13). During germinal layer establishment (stages 12-13) cytoplasmic bridges frequently link the embryonic cells. The presence of gap junctions in cleavagestage embryos provides the morphological substrate for a demonstrated pathway of direct cell-cell communication that is modifiable by experimental treatments and may be physiologically regulatable. The existence of septate junctions and adherent contacts at later stages suggests that some functional specialization, perhaps the establishment of a strongly joined framework of cells at the surface of the embryo, accompanies the formation of germinal layers.

KW - Freeze fracture

KW - Gap junctions

KW - Septate junctions

KW - Squid embryo

UR - http://www.scopus.com/inward/record.url?scp=0021922441&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0021922441&partnerID=8YFLogxK

U2 - 10.1007/BF00219225

DO - 10.1007/BF00219225

M3 - Article

VL - 239

SP - 477

EP - 484

JO - Cell and Tissue Research

JF - Cell and Tissue Research

SN - 0302-766X

IS - 3

ER -