Combining real-time growth kinetics measurements with global gene expression analysis of microbial cultures is of significant value for high-throughput biological research. We have performed differential gene expression analysis in the eukaryotic model Saccharomyces cerevisiae grown in galactose and glucose media in 150 muL bioreactors equipped with sensors for in situ and real-time measurements of optical density (OD), pH, and dissolved oxygen (DO). The microbioreactors were fabricated from poly(dimethylsiloxane) (PDMS) and poly(methyl methacrylate) (PMMA) and equipped with internal magnetic ministirrers and evaporation compensation by water replacement. In galactose-grown cells, the core genes of the GAL operon GAL2, GAL1, GAL7, and GAL10 were upregulated at least 100-fold relative to glucose-grown cells. These differential gene expression levels were similar to those observed in large-scale culture vessels. The increasing rate at which complete genomic sequences of microorganisms are becoming available offers an unprecedented opportunity for comparative investigations of these organisms. Our results from S. cerevisiae cultures grown in instrumented microbioreactors show that it is possible to integrate high-throughput studies of growth physiology with global gene expression analysis of microorganisms.
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Evidence ID | Analyze ID | Gene/Complex | Systematic Name/Complex Accession | Qualifier | Gene Ontology Term ID | Gene Ontology Term | Aspect | Annotation Extension | Evidence | Method | Source | Assigned On | Reference |
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Evidence ID | Analyze ID | Gene | Gene Systematic Name | Phenotype | Experiment Type | Experiment Type Category | Mutant Information | Strain Background | Chemical | Details | Reference |
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Evidence ID | Analyze ID | Gene | Gene Systematic Name | Disease Ontology Term | Disease Ontology Term ID | Qualifier | Evidence | Method | Source | Assigned On | Reference |
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Evidence ID | Analyze ID | Regulator | Regulator Systematic Name | Target | Target Systematic Name | Direction | Regulation of | Happens During | Regulator Type | Direction | Regulation Of | Happens During | Method | Evidence | Strain Background | Reference |
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Site | Modification | Modifier | Source | Reference |
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Evidence ID | Analyze ID | Interactor | Interactor Systematic Name | Interactor | Interactor Systematic Name | Allele | Assay | Annotation | Action | Phenotype | SGA score | P-value | Source | Reference | Note |
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Evidence ID | Analyze ID | Interactor | Interactor Systematic Name | Interactor | Interactor Systematic Name | Assay | Annotation | Action | Modification | Source | Reference | Note |
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Complement ID | Locus ID | Gene | Species | Gene ID | Strain background | Direction | Details | Source | Reference |
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Evidence ID | Analyze ID | Dataset | Description | Keywords | Number of Conditions | Reference |
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