Linked Life Data

6099119

Source:http://linkedlifedata.com/resource/pubmed/id/6099119

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1985-4-5
pubmed:abstractText
Ultrastructural study of the midgut of Calanoid Copepods revealed the presence of several cell types in all species. In a previous report we described and assigned a function to each of these cell types. In order to affirm the validity of those assignments we undertook an investigation of enzymatic activity especially of phosphatase and arylsulphatase. By cytochemical methods, alkaline phosphatase activity was detected in R-, R'-D- and B-cells, with labelling being observed on the apical plasmic membrane level in all four, and in B-cells on the pinocytotic vesicle membranes. Acid phosphatase and aryl-sulphatase activities were only detectable in B-cells; the most frequently labelled structures were located in the vacuolar system, dictyosomes and Golgi vesicles, although Golgi structures occasionally reacted to acid phosphatase. Nome of the dense bodies observed in B-cells reacted to arylsulphatase. Similarly they were unevenly labelled during acid phosphatase tests. Hence it may be assumed that dense bodies are not involved in hydrolases. It is possible that these enzymes originated from vesicles generated by the Golgi saccules surrounding and joined to the vacuoles, thus bypassing the lysosome I stage.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0391-7258
pubmed:author
pubmed:issnType
Print
pubmed:volume
28
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
399-412
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1984
pubmed:articleTitle
Cytochemical detection of phosphatase and arylsulphatase activities in the midgut of Centropages typicus (Copepod, Calanoid).
pubmed:publicationType
Journal Article