Blastocoel


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Related to Blastocoel: blastopore, Blastomeres
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Blastocoel

 

segmentation cavity, cleavage cavity, primary body cavity, a cavity formed between the blastomeres in the embryo of an animal and filled with a liquid different in chemical composition from the surrounding medium. A blastocoel attains its greatest size towards the end of cleavage in the blastula stage. In the process of gastrulation it is gradually displaced by migrating cellular material.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
The blastocoel fluid sample and 10 [micro]l of the spent media sample were each subjected to a modified version of MDA (Qiagen, UK) using a protocol developed at Reprogenetics specifically for the purpose of amplifying DNA from blastocoel fluid and spent media samples (Babariya and Wells, unpublished).
Skeletogenesis thus resembled development of typical feeding larvae, in which these spicules are secreted by a mass of primary mesenchyme cells that migrate into the blastocoel shortly before the start of gastrulation (Okazaki 1975).
At the blastocyst stage, however, sodium pumping on the part of the trophoblast results, through osmosis, in the drawing of water into the blastocoel, enlarging the blastocyst within the zone pellucida.
At 9 h after spawning, embryos consisted of a bilayer of cells with no definite blastocoel. The embryos then became concave-convex dish-shaped (Fig.
Effects of fetal calf serum, amino acids, vitamins and insulin on blastocoel formation and hatching of in vitro and IVM/IVF derived porcine embryos developing in vitro.
Previous lectin-staining results demonstrated that the mesh-like structure of the extracellular matrix included acid mucopolysaccharides in the blastocoel of the archenteron-forming P.
As the eggs have abundant small lipids, the blastomeres release lipids into the blastocoel, causing an increase in cell number at the wrinkled-blastula stage and the embryonic surface becomes smooth (1).
The blastocoel, which first becomes apparent in the 8-cell stage, is very pronounced beginning with the 32-cell stage (Fig.
Serotonin stimulates [[Ca.sup.2+].sub.i] elevation in ciliary ectodermal cells of echinoplutei through a serotonin receptor cell network in the blastocoel. J.
The ingression of cells into the blastocoel at gastrulation requires those cells to undergo EMT, making the regulation of cell adhesion crucial for the normal development of the organism.
The cells stained weakly with P4 are seen in the blastocoel of the six-armed pluteus (Fig.