Linked Life Data

1463838

Source:http://linkedlifedata.com/resource/pubmed/id/1463838

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1993-1-19
pubmed:abstractText
Cell cultures of Corydalis sempervirens, tolerant to the herbicide glyphosate, have a 30-40-fold increased level of the herbicide's target enzyme 5-enolpyruvylshikimate 3-phosphate (EPSP) synthase, a ten-fold enhanced level of the corresponding mRNA but no amplification of the gene (Holländer-Czytko et al., Plant Mol Biol 11 (1988) 215-220). The increase at the transcriptional level is due to a higher rate of transcription of the gene, which was observed in run-off transcription assays with isolated nuclei. The further amplification at the protein level is the result of stabilization of the enzyme by the herbicide. In the presence of glyphosate the half-life of EPSP synthase was doubled leading to higher levels of both protein and enzyme activity. Overproduction of the enzyme in adapted cultures is stable at the transcriptional level, as cells from adapted cultures grown in the absence of glyphosate for three years still display an about ten-fold higher enzyme activity and transcript level than non-adapted cultures.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0167-4412
pubmed:author
pubmed:issnType
Print
pubmed:volume
20
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1029-36
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1992
pubmed:articleTitle
Glyphosate tolerance of cultured Corydalis sempervirens cells is acquired by an increased rate of transcription of 5-enolpyruvylshikimate 3-phosphate synthase as well as by a reduced turnover of the enzyme.
pubmed:affiliation
Lehrstuhl für Pflanzenphysiologie, Ruhr-Universität Bochum, Germany.
pubmed:publicationType
Journal Article, In Vitro, Research Support, Non-U.S. Gov't