Linked Life Data

8467078

Source:http://linkedlifedata.com/resource/pubmed/id/8467078

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
1993-5-11
pubmed:abstractText
Transfection of preheated petunia protoplasts with several biologically active DNA constructs resulted in a significantly higher gene expression than that observed in transfected unheated protoplasts. It was observed with supercoiled, linearized and single-stranded DNA structures that stimulation of transient gene expression in preheated protoplasts was neither dependent on the reporter gene nor on the regulatory elements used. Heat treatment at 42 degrees C also increased expression in protoplasts transfected with a plasmid bearing the tobacco mosaic virus (TMV) translational enhancer, omega. Northern blot analysis revealed that heat treatment of protoplasts before the transfection event greatly increased the amount of the newly synthesized transcripts. Preheating of protoplasts did not affect the transfection efficiency, namely the number of transfected cells in the population, nor the amount of DNA in transfected nuclei, as was inferred from histochemical staining and Southern blot analysis, respectively. The possible mechanism by which heat treatment stimulates transient gene expression of genes lacking obvious heat shock elements is offered. The relevance of the present findings to transient gene expression in plants in general and to viral gene expression in particular is discussed.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0167-4412
pubmed:author
pubmed:issnType
Print
pubmed:volume
21
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
823-34
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
1993
pubmed:articleTitle
Transient gene expression of foreign genes in preheated protoplasts: stimulation of expression of transfected genes lacking heat shock elements.
pubmed:affiliation
Department of Biological Chemistry, Hebrew University of Jerusalem, Israel.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't