Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1998-4-2
pubmed:abstractText
Sea urchin spermatozoa were injected into mature mouse oocytes to determine whether they can activate mouse oocytes and, if so, how they behave within the oocyte cytoplasm of such a distant species. While injection of a single spermatozoon into each oocyte did not activate any of the oocytes, injection of 10 spermatozoa activated about 20%. Within the cytoplasm of unactivated oocytes, sperm heads commonly transformed into chromosome-like structures. When a single spermatozoon was injected, and oocytes were then activated by Sr2+, about 30% of the activated oocytes had both female (mouse) and male (sea urchin) pronuclei when examined 8 h after sperm injection. These results indicated that sperm-borne oocyte activating factor(s) and the cytoplasmic factors controlling the development of the sperm pronucleus are not strictly species-specific.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0967-1994
pubmed:author
pubmed:issnType
Print
pubmed:volume
5
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
229-34
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1997
pubmed:articleTitle
The response of mouse oocytes injected with sea urchin spermatozoa.
pubmed:affiliation
University of Hawaii School of Medicine, Honolulu 96822, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't