Linked Life Data

3794015

Source:http://linkedlifedata.com/resource/pubmed/id/3794015

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1987-2-10
pubmed:abstractText
Using the techniques of intraspecific in vitro activation of prothoracic glands and ring glands by serial dilutions of prothoracicotropic hormone (PTTH) extracts from pupal Manduca sexta (Lepidoptera) and larval Sarcophaga bullata (Diptera), a dose-response of activation was observed for both species. In both species maximum activation was at 0.5 brain equivalents while the number of brain equivalents necessary for half maximal stimulation (ED50) was 0.20 for Manduca and 0.15 for Sarcophaga. When prothoracic glands or ring glands were challenged with interspecific PTTH extracts from a stage different from that of the gland donor, no dose-response of gland activation was observed. However, when M. sexta larval prothoracic glands were challenged by S. bullata larval PTTH extract, activation was observed. The dose-response profile fell midway between the dose-response curves obtained for the intraspecific assays. Thus, PTTH extract from one insect has the ability to activate the prothoracic glands of an insect representing another order.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0174-1578
pubmed:author
pubmed:issnType
Print
pubmed:volume
156
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
767-71
pubmed:dateRevised
2009-6-8
pubmed:meshHeading
pubmed:year
1986
pubmed:articleTitle
Ring gland and prothoracic gland sensitivity to interspecific prothoracicotropic hormone extracts.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, U.S. Gov't, P.H.S.