Results 141 to 150 of about 7,571 (179)

Mesoderm and endoderm internalization in the Xenopus gastrula

2020
Mesoderm and endoderm internalization in the Xenopus embryo are based on a number of region-specific morphogenetic processes that co-act in the vegetal half of the gastrula. In the multilayered wall surrounding the blastocoel, the apical layer engages in bottle cell formation and associated invagination and involution movements, and in cell ...
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Characterization of small RNAs in Xenopus tropicalis gastrulae

genesis, 2012
AbstractHere, we report and characterize deep sequencing data and bioinformatics analysis of small RNAs from Xenopus tropicalis gastrula. A total of 17,553,124 reads with perfect match to the genome derived from 2,616,053 unique sequences were identified. Seventy‐seven percent of theses sequences were not found in previous reports from X.
Fernando, Faunes, Leonardo I, Almonacid, Francisco, Melo, Juan, Larrain   +3 more
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Newly synthesized extracellular ribonucleic acids in the amphibian gastrula

Cell Differentiation, 1983
The possible synthesis of RNA located in the extracellular compartment of Bufo arenarum gastrula was studied using a biochemical method. [3H]adenosine was microinjected into the blastocoel of late blastulae or early gastrulae, which were then dissociated at advanced gastrula stage.
S S, Sánchez, M O, Cabada, F D, Barbieri   +2 more
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Das Anlagemuster in der beginnenden Gastrula

1936
Die prasumptiven Organanlagen, deren Verteilung in der Blastula und beginnenden. Gastrula im VoGTschen Schema verzeichnet ist, ge-langen durch die „ Gastrulation“ an ihren endgultigen Ort. Dieser hochst merkwurdige Vorgang bestimmt gerichteter Massenbewegungen hat seit langem zahlreiche Forscher beschaftigt.
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Primary cell cultures from Drosophila gastrula embryos.

Journal of visualized experiments : JoVE, 2011
Here we describe a method for preparing and culturing primary cells dissociated from Drosophila gastrula embryos. In brief, a large amount of staged embryos from young and healthy flies are collected, sterilized, and then physically dissociated into a single cell suspension using a glass homogenizer.
Perrimon, Norbert, Zirin, Jonathan, Bai, Jianwu   +2 more
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Mesoderm cell migration in the vertebrate gastrula

Seminars in Developmental Biology, 1994
Abstract Mesoderm migration across the inner surface of the outer embryonic layer is an essential morphogenetic mechanism in vertebrate gastrulation. Conserved traits of this process are (1) cadherin-dependent cohesion of the mesoderm, and (2) a predominant role for fibronectin in mediating mesoderm cell-substrate interactions.
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Mesoderm Cell Migration in the Xenopus Gastrula

1991
We analyze the migration of the prospective head mesoderm (HM) across the blastocoel roof (BCR) during gastrulation of the Xenopus embryo. Cell spreading and the concomitant appearance of cytoplasmic lamellae depend on the interaction of HM cells with fibronectin (FN) fibrils, which cover the inner surface of the BCR.
Winklbauer, R. ; https://orcid.org/0000-0002-0628-0897, Selchow, A., Nagel, M., Stoltz, C., Angres, B.   +4 more
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Gastrula

Notes, 1970
Gardner Read, David Bedford, Morton Feldman   +2 more
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In vitro studies of amphibian gastrula cells.

Journal of submicroscopic cytology, 1982
Experiments are presented to determine whether Rana pipiens gastrula cells differentiate in vitro as they do in vivo with respect to rate, morphology and spreading characteristics. Comparisons are made between presumptive germ layer cells isolated at late blastula, cultured for 24 h, and the same cell types form late gastrula cultured for 1 h (LeBlanc ...
J, LeBlanc, I, Brick
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Thermal exposures of ectoderm cells isolated from amphibian gastrulae

Experientia, 1953
Des explantats ectodermiques de gastrulas deTriturus alpestris ont ete soumis a des chocs thermiques dans des conditions variees; il ne s'est jamais produit de neuralisation des explantats, dont la basophilie etait tres faible. Il faut en conclure que la neuralisation des explantats ectodermiques ne se produit que lorsque les cellules ont ete soumises ...
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