Linked Life Data

1301083

Source:http://linkedlifedata.com/resource/pubmed/id/1301083

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1993-5-28
pubmed:abstractText
Ilyanassa obsoleta larvae have two calcium carbonate-containing organs, shell and statocyst, which are derived from five micromere cells (2a, 2c, 2d, 3c, 3d). "Internal shell," an abnormal, internal calcium carbonate mass, was previously observed when cells which normally induce shell and statocyst were removed. This study utilizes multiple-cell deletions to examine how these calcium carbonate-producing precursors control the pattern of biomineralization, whether it is in external shell, statocyst, or internal shell. It was demonstrated that internal shell was solely derived from any of these five cells. However, there was a quantitative difference in the frequency of internal shell production depending upon which cells, as well as how many, are deleted. In general, when external shell or statocyst production was diminished, as the result of removing several of the calcium carbonate-producing cells, internal shell was deposited instead. The presence of internal shell can best be explained as the result of altered interactions between these five cells after one or more have been deleted. Electron diffraction and transmission electron microscopy show that internal shell differs from normal shell in both structure and crystal morphology and it can also be produced by statocyst precursors. Thus, both the deletion and electron microscopy data support the interpretation that the development of internal shell is controlled by shell- and statocyst-producing cells when the cell communication between these cells is disrupted.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
1058-8388
pubmed:author
pubmed:issnType
Print
pubmed:volume
195
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
188-200
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
1992
pubmed:articleTitle
Cell interactions influence the pattern of biomineralization in the Ilyanassa obsoleta (Mollusca) embryo.
pubmed:affiliation
Department of Zoology, University of Texas, Austin 78712-1064.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, U.S. Gov't, Non-P.H.S.