Effect of red and blue light on the timing of cyclin-dependent kinase activity and the timing of cell division in Chlamydomonas reinhardtii

In this study, we describe the effect of red and blue light on the timing of cell division, DNA synthesis, and activity and presence of cyclin-dependent kinases (CDKs), in synchronous cultures of the unicellular green alga Chlamydomonas reinhardtii. Cell division and DNA synthesis were found to occu...

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Détails bibliographiques
Publié dans:Plant physiology and biochemistry : PPB. - 1991. - 42(2004), 4 vom: 04. Apr., Seite 341-8
Auteur principal: Oldenhof, Harriëtte (Auteur)
Autres auteurs: Bisová, Katerina, van den Ende, Herman, Zachleder, Vilém
Format: Article
Langue:English
Publié: 2004
Accès à la collection:Plant physiology and biochemistry : PPB
Sujets:Journal Article Research Support, Non-U.S. Gov't DNA 9007-49-2 Protein Kinases EC 2.7.- histone H1 kinase EC 2.7.1.- Cyclin-Dependent Kinases EC 2.7.11.22
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520 |a In this study, we describe the effect of red and blue light on the timing of cell division, DNA synthesis, and activity and presence of cyclin-dependent kinases (CDKs), in synchronous cultures of the unicellular green alga Chlamydomonas reinhardtii. Cell division and DNA synthesis were found to occur later in cells grown in blue or white light, than in red light. CDK-like activity, measured using a histone H1 kinase assay, correspondingly occurred later in cultures that were grown in blue light compared to cultures grown in red light. The amount of CDK-like proteins, as detected using an antibody against the PSTAIRE motif, showed a maximum during the division phase. We conclude that the mechanism that causes the delay in the timing of cell division in blue light has its action before DNA replication takes place and also precedes the increase in CDK-like activity 
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700 1 |a Zachleder, Vilém  |e verfasserin  |4 aut 
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