Saccharomyces cerevisiae SFP1 promotes transcription of a large cluster of genes involved in ribosome biogenesis. During growth in shake flasks, a mutant deleted for SFP1 shows a small size phenotype and a reduced growth rate. We characterized the behaviour of an sfp1Δ mutant compared to an isogenic reference strain growing in chemostat cultures at the same specific growth rate. By studying glucose (anaerobic)- and ethanol (aerobic)-limited cultures we focused specifically on nutrient-dependent effects. Major differences in the genome-wide transcriptional profiles were observed during glucose-limited growth. In particular, Sfp1 appeared to be involved in the control of ribosome biogenesis but not of ribosomal protein gene expression. Flow cytometric analyses revealed size defects for the mutant under both growth conditions. Our results suggest that Sfp1 plays a role in transcriptional and cell size control, operating at two different levels of the regulatory network linking growth, metabolism and cell size. © 2008 SGM.

Cipollina, C., van den Brink, J., Daran Lapujade, P., Pronk, J., Vai, M., de Winde, J. (2008). Rivisiting the role of yeast Sfp1 in ribosome biogenesis and cell size control: a chemostat study. MICROBIOLOGY, 154(1), 337-346 [10.1099/mic.0.2007/011767-0].

Rivisiting the role of yeast Sfp1 in ribosome biogenesis and cell size control: a chemostat study

CIPOLLINA, CHIARA;VAI, MARINA;
2008

Abstract

Saccharomyces cerevisiae SFP1 promotes transcription of a large cluster of genes involved in ribosome biogenesis. During growth in shake flasks, a mutant deleted for SFP1 shows a small size phenotype and a reduced growth rate. We characterized the behaviour of an sfp1Δ mutant compared to an isogenic reference strain growing in chemostat cultures at the same specific growth rate. By studying glucose (anaerobic)- and ethanol (aerobic)-limited cultures we focused specifically on nutrient-dependent effects. Major differences in the genome-wide transcriptional profiles were observed during glucose-limited growth. In particular, Sfp1 appeared to be involved in the control of ribosome biogenesis but not of ribosomal protein gene expression. Flow cytometric analyses revealed size defects for the mutant under both growth conditions. Our results suggest that Sfp1 plays a role in transcriptional and cell size control, operating at two different levels of the regulatory network linking growth, metabolism and cell size. © 2008 SGM.
Articolo in rivista - Articolo scientifico
yeast,Sfp1, ribosome biogenesis, size
English
2008
154
1
337
346
none
Cipollina, C., van den Brink, J., Daran Lapujade, P., Pronk, J., Vai, M., de Winde, J. (2008). Rivisiting the role of yeast Sfp1 in ribosome biogenesis and cell size control: a chemostat study. MICROBIOLOGY, 154(1), 337-346 [10.1099/mic.0.2007/011767-0].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/11838
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