Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1993-2-3
pubmed:abstractText
The major vitelline envelope proteins were detected in the plasma of female rainbow trout maturing under natural conditions by using the Western blot technique. Females were sampled every month from July until ovulation in January. The amount of vitelline envelope proteins in plasma increased markedly as the gonads increased in size from 0.4 to about 15% of the total body weight. The plasma level of oestradiol-17 beta largely followed the alterations in the amount of vitelline envelope proteins, indicating the endocrine control of vitelline envelope protein synthesis. In addition, plasma vitellogenin changed in a manner that resembled the changes in the amount of plasma vitelline envelope proteins. The appearance and growth of the vitelline envelope during oocyte development was demonstrated using immunohistochemical methods. The vitelline envelopes from oocytes at different stages of development were immunoreactive with the antibodies directed against the major vitelline envelope proteins. No immunoreactivity could be observed in the ooplasm or in the surrounding follicular cells, which indicated that the major vitelline envelope proteins were of extraovarian origin. The present study further supports the hypothesis that the major protein constituents of the vitelline envelope in teleosts are under the endocrine control of oestradiol-17 beta and that the site of synthesis is outside the ovary.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0022-0795
pubmed:author
pubmed:issnType
Print
pubmed:volume
135
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
303-9
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1992
pubmed:articleTitle
Immunochemical detection of the major vitelline envelope proteins in the plasma and oocytes of the maturing female rainbow trout, Oncorhynchus mykiss.
pubmed:affiliation
Department of Zoophysiology, University of Göteborg, Sweden.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't