blastoderm


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Related to blastoderm: blastodisc, area pellucida, Hensen's node
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  • noun

Synonyms for blastoderm

a layer of cells on the inside of the blastula

References in periodicals archive ?
The fluid-filled perivitelline space overlays the vitelline membrane, which surrounds the yolk and the blastoderm, which will become the developing embryo.
The blastomeres ultimately form a blastoderm and a germ disk, from which the embryonic nauplius stage develops (Ishikawa, 1885; Weldon, 1887; Brooks and Herrick, 1891; Nair, 1949; Klann and Scholtz, 2014).
The gastrula phase began from 20-40 h after post fertilization and 2 days after post fertilization, germ ring surrounding the margin of the blastoderm; it is the main characteristics of this phase and embryonic protection layer stretched from germ ring towards the animal pole and form the neural tube.
The entire blastoderm was harvested as mentioned previously and then dissociated in tubes containing PBS at room temperature [19].
This allowed the blastoderm to float upward and take a position over the yolk sac just beneath the shell.
The gastrulation stage ends when the blastoderm completely covers the yolk, characterizing the 100% epiboly stage, which is marked by the presence of primary germ layers (endoderm, mesoderm and ectoderm) and the embryonic axis, giving rise to the subsequent stage characterized by organogenesis (Wolpert et al., 2000).
Effects of Zinc deficiency on the chick embryo blastoderm. Acta Anat (Basel).
Wrth i'r bl gael ei ffurfio mae'r celloedd yn tueddu i ymledu ar y tu allan i'r bl ac mae'r celloedd yma'n cael eu galw'n blastoderm, gan adael ceudod yn y canol.
In Drosophila, segmentation results from a simultaneous subdivision of the blastoderm. Arthropods use the segment-polarity-genes known from Drosophila in their segmentation.
In chicken embryos, myostatin expression can be detected as early as the blastoderm stage (Kocamis et al., 1999).
The chosen embryonic stages were: eggs at 0 d old; 1 d old (i.e., about the time the blastoderm is formed); 8 d old [i.e, blastokinesis is established (Jones 1964)].
The egg which were incubated for 11 h our showed distract evidences of cleavage, especially superficial cleavage, resulting in the formation of uniform monocellular blastoderm layer.
At midblastula, cells of the blastoderm become mobile and spread over the yolk in the process known as epiboly.