Linked Life Data

2257968

Source:http://linkedlifedata.com/resource/pubmed/id/2257968

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1991-1-31
pubmed:abstractText
To determine if cell migration is involved in the formation of the pronephric duct in Xenopus, we used morphometry, ablation, and videomicroscopy of vitally stained cells to study duct formation. In St 23-24 (Nieuwkoop and Faber, 1956) embryos, a ridge of cells forms caudal to the pronephric rudiment. The ridge lengthens at approximately the same rate as the embryonic trunk from St 23 to St 31. Ablation experiments demonstrated that the ridge constitutes the pronephric duct rudiment (PDR); when the ridge was ablated at St 23-24, little or no duct formation occurred, whereas a duct formed when the pronephric rudiment was ablated and the ridge left intact. Vital dye injections showed that the PDR forms from the intermediate mesoderm ventral to myotomes IV-VIII. From St 29/30 to St 33/34, the PDR actively elongates along the ventral edge of the myotomes as far as myotome XIV, where it joins the cloaca as the pronephric duct. Videomicroscopy of vitally stained cells showed that the PDR elongates throughout its length and does not incorporate additional cells from the mesoderm over which it elongates. The results strengthen the case for a common mode of pronephric duct formation among amphibian species.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0012-1606
pubmed:author
pubmed:issnType
Print
pubmed:volume
142
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
283-92
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1990
pubmed:articleTitle
Cell migration in the formation of the pronephric duct in Xenopus laevis.
pubmed:affiliation
Department of Anatomy, Uniformed Services University of the Health Sciences, Bethesda, Maryland 20889-4799.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, U.S. Gov't, Non-P.H.S., Research Support, Non-U.S. Gov't