Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1975-6-20
pubmed:abstractText
A high temperature conditional snake mutant, strain D1, of Agmenellum quadruplicatum was isolated which immediately stopped dividing following a shift to 41 degrees C following treatment with nitrosoguanidine. This mutant was stimulated to divide at 41 degrees C by the addition of inhibitors of RNA or protein synthesis: rifampicin, streptomycin, puromycin and chloramphenicol. Each of these inhibitors exhibited a discrete concentration optimum. The optimal concentration of chloramphenicol for cell division corresponded to the minimal concentrations necessary for the rapid inhibition of protein synthesis. The ability of chloramphenicol and other inhibitors to induce cell division in filaments decayed rapidly upon shifting to 30 degrees C. These results are interpreted as evidence for a protein acting as a negative regulator late in the cell cycle. At 41 degrees C, DNA was found distributed as a continuous zone throughout the length of the filaments. The addition of inhibitors of protein or RNA synthesis resulted in a rapid condensation of this nuclear material into multiple discrete nuclear regions suggesting that the negative control may be at the level of nuclear compartmentalization.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0006-3002
pubmed:author
pubmed:issnType
Print
pubmed:day
10
pubmed:volume
383
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
215-26
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
1975
pubmed:articleTitle
Cell division in Agmenellium quadruplicatum: evidence for the negative control by a protein.
pubmed:publicationType
Journal Article