Cell synchrony and periodic behaviour in yeast populations

The underlying basis for the behaviour of a population of cells is the cell growth and division cycles of the individual cells. Under certain special circumstances, oscillations in cell cultures can be observed that are a reflection of metabolic oscillations, such as in glycolysis, or cell cycle osc...

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Veröffentlicht in:Canadian journal of chemical engineering 1999-10, Vol.77 (5), p.893-902
Hauptverfasser: Sheppard, John D., Dawson, Peter S. S.
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Dawson, Peter S. S.
description The underlying basis for the behaviour of a population of cells is the cell growth and division cycles of the individual cells. Under certain special circumstances, oscillations in cell cultures can be observed that are a reflection of metabolic oscillations, such as in glycolysis, or cell cycle oscillations from a partially synchronized population. These oscillations can sometimes occur spontaneously, as in the chemostat culture of Saccharomyces cerevisiae at low dilution rates, or can be induced using chemical blockers or entrainment by a periodic nutrient environment. Continuous methods for inducing a synchronized culture include the pulsed chemostat, continuous phasing and self‐cycling fermentation. Results obtained by studying both spontaneously oscillating cultures and synchronized cultures have provided insight into the mechanisms responsible for the progress and control of the cell cycle as well as the intimate relationship that exists between the cellular dynamics and the dynamics of the environment. Le fondement expliquant le comportement d'une population de cellules rèside dans la croissance des cellules et les cycles de division de chaque cellule. Dans certaines circonstances particulieáres, des oscillations peuvent ětre observèes dans les cultures de cellules, qui sont un reflet des oscillations mètaboliques, comme dans la glycolyse, ou des oscillations dans les cycles des cellules d'une population partiellement synchronisèe. Ces oscillations peuvent parfois survenir spontanèment, comme dans la culture par chemostat de Saccharomyces cerevisiae à de faibles vitesses de dilution, ou peuvent ětre provoquèes à l'aide de bloqueurs chimiques ou par entraǐnement par un milieu nutritif pèriodique. Les mèthodes continues pour provoquer une culture synchronisèe englobent le chemostat puisè, la mise en phase continue et la fermentation auto‐cyclique. Les rèsultats obtenus par l'ètude à la fois des cultures spontanèment oscillatoires et des cultures synchronisèes nous donnent des indications sur les mècanismes responsables de la progression et du contrǒle du cycle des cellules ainsi que sur la relation ètroite qui existe entre la dynamique cellulaire et la dynamique de l'environnement.
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Les rèsultats obtenus par l'ètude à la fois des cultures spontanèment oscillatoires et des cultures synchronisèes nous donnent des indications sur les mècanismes responsables de la progression et du contrǒle du cycle des cellules ainsi que sur la relation ètroite qui existe entre la dynamique cellulaire et la dynamique de l'environnement.</description><subject>Biological and medical sciences</subject><subject>Biotechnology</subject><subject>cell cycle</subject><subject>Chemostats</subject><subject>Fermentation</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Metabolism</subject><subject>Methods. Procedures. Technologies</subject><subject>Microbial engineering. 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Fermentation and microbial culture technology</topic><topic>oscillations</topic><topic>Plant cell culture</topic><topic>synchrony</topic><topic>yeast</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Sheppard, John D.</creatorcontrib><creatorcontrib>Dawson, Peter S. S.</creatorcontrib><collection>Istex</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><jtitle>Canadian journal of chemical engineering</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Sheppard, John D.</au><au>Dawson, Peter S. S.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Cell synchrony and periodic behaviour in yeast populations</atitle><jtitle>Canadian journal of chemical engineering</jtitle><addtitle>Can. J. Chem. 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source Wiley Online Library Journals Frontfile Complete
subjects Biological and medical sciences
Biotechnology
cell cycle
Chemostats
Fermentation
Fundamental and applied biological sciences. Psychology
Metabolism
Methods. Procedures. Technologies
Microbial engineering. Fermentation and microbial culture technology
oscillations
Plant cell culture
synchrony
yeast
title Cell synchrony and periodic behaviour in yeast populations
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