Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1984-4-26
pubmed:abstractText
The cytoplasm of mature non-activated and cleaving eggs of A. stellatus and R. temporaria had no cytostatic effect. The cytoplasm treated with EGTA, being injected in one of two blastomeres of the cleaving egg of the same species, inhibits fully or partially the cleavage. The nuclei in the "arrested" blastomeres had, however, vesicular structure but were not blocked at metaphase, as could be expected if the cleavage was inhibited by a cytostatic factor described by Masui (1974). The portion of perished embryos and "arrested" blastomeres was shown to increase with the dose of EGTA injected in the egg, donor of cytoplasm. In the experiments with reciprocal injections of the intact cytoplasm of the mature non-activated eggs in one of two blastomeres of the recipient embryo carried out on R. temporaria and X. laevis, the cytoplasm of X. laevis only arested the cleavage but in this case as well only 4 out of 32 "arrested" blastomeres were at metaphase. The cytostatic effect observed in our experiments was not, hence, similar to that observed by Masui on R. pipiens.
pubmed:language
rus
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0475-1450
pubmed:author
pubmed:issnType
Print
pubmed:volume
15
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
93-7
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:articleTitle
[Does Masui's Ca-sensitive cytostatic factor exist in the cytoplasm of mature nonactivated eggs of Acipenser stellatus, Rana temporaria and Xenopus laevis?].
pubmed:publicationType
Journal Article, English Abstract