Halobacterium growth in standard growth media: time course
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ABSTRACT:
ORGANISM(S): Halobacterium salinarum NRC-1
PROVIDER: GSE14832 | GEO | 2010/02/11
SECONDARY ACCESSION(S): PRJNA114375
REPOSITORIES: GEO
Similar Datasets
Project description:We report detailed characterization of physiological changes encoded by 63% of all genes within the archaeon Halobacterium salinarum subsp. NRC-1 during routine laboratory growth. While the majority of these changes occur during the transition from rapid exponential growth to the stationary phase, we were also able to detect transient changes in gene expression. This demonstrated the presence of several additional albeit subtle physiological states that exist beyond what might be anticipated from a direct interpretation of the growth profile. Changes in the abundance of several key intracellular metabolites over the growth curve corroborated observations of changes in gene expression of enzymes that catalyze their synthesis. Next, we investigated the roles of general transcription factors (GTFs) in mediating these global growth-associated gene expression changes. This revealed numerous phenotypic perturbations including slowed growth, gas vesicle biogenesis deficiency and morphologic abnormalities upon the overexpression of a single GTF - TBPd. These phenotypes were quantified and were attributed to a perturbation in the regulation of aconitase. Importantly, our results demonstrate why an experiment design as simple as a simple batch culture can be enormously informative of activities and interrelationships of a large fraction of all genes in a microbe.
2010-02-11 | GSE14835 | GEO
Project description:We report detailed characterization of physiological changes encoded by 63% of all genes within the archaeon Halobacterium salinarum subsp. NRC-1 during routine laboratory growth. While the majority of these changes occur during the transition from rapid exponential growth to the stationary phase, we were also able to detect transient changes in gene expression. This demonstrated the presence of several additional albeit subtle physiological states that exist beyond what might be anticipated from a direct interpretation of the growth profile. Changes in the abundance of several key intracellular metabolites over the growth curve corroborated observations of changes in gene expression of enzymes that catalyze their synthesis. Next, we investigated the roles of general transcription factors (GTFs) in mediating these global growth-associated gene expression changes. This revealed numerous phenotypic perturbations including slowed growth, gas vesicle biogenesis deficiency and morphologic abnormalities upon the overexpression of a single GTF - TBPd. These phenotypes were quantified and were attributed to a perturbation in the regulation of aconitase. Importantly, our results demonstrate why an experiment design as simple as a simple batch culture can be enormously informative of activities and interrelationships of a large fraction of all genes in a microbe. This SuperSeries is composed of the following subset Series: GSE14832: Halobacterium growth in standard growth media: time course GSE14835: Halobacterium growth with added uracil: time course GSE14836: Halobacterium delta-ura3 growth with added uracil: time course Refer to individual Series
2010-02-10 | E-GEOD-14976 | biostudies-arrayexpress
Project description:We report detailed characterization of physiological changes encoded by 63% of all genes within the archaeon Halobacterium salinarum subsp. NRC-1 during routine laboratory growth. While the majority of these changes occur during the transition from rapid exponential growth to the stationary phase, we were also able to detect transient changes in gene expression. This demonstrated the presence of several additional albeit subtle physiological states that exist beyond what might be anticipated from a direct interpretation of the growth profile. Changes in the abundance of several key intracellular metabolites over the growth curve corroborated observations of changes in gene expression of enzymes that catalyze their synthesis. Next, we investigated the roles of general transcription factors (GTFs) in mediating these global growth-associated gene expression changes. This revealed numerous phenotypic perturbations including slowed growth, gas vesicle biogenesis deficiency and morphologic abnormalities upon the overexpression of a single GTF - TBPd. These phenotypes were quantified and were attributed to a perturbation in the regulation of aconitase. Importantly, our results demonstrate why an experiment design as simple as a simple batch culture can be enormously informative of activities and interrelationships of a large fraction of all genes in a microbe.
2010-02-11 | GSE14836 | GEO
Project description:We report detailed characterization of physiological changes encoded by 63% of all genes within the archaeon Halobacterium salinarum subsp. NRC-1 during routine laboratory growth. While the majority of these changes occur during the transition from rapid exponential growth to the stationary phase, we were also able to detect transient changes in gene expression. This demonstrated the presence of several additional albeit subtle physiological states that exist beyond what might be anticipated from a direct interpretation of the growth profile. Changes in the abundance of several key intracellular metabolites over the growth curve corroborated observations of changes in gene expression of enzymes that catalyze their synthesis. Next, we investigated the roles of general transcription factors (GTFs) in mediating these global growth-associated gene expression changes. This revealed numerous phenotypic perturbations including slowed growth, gas vesicle biogenesis deficiency and morphologic abnormalities upon the overexpression of a single GTF - TBPd. These phenotypes were quantified and were attributed to a perturbation in the regulation of aconitase. Importantly, our results demonstrate why an experiment design as simple as a simple batch culture can be enormously informative of activities and interrelationships of a large fraction of all genes in a microbe. This SuperSeries is composed of the SubSeries listed below.
2010-02-11 | GSE14976 | GEO
Project description:We report detailed characterization of physiological changes encoded by 63% of all genes within the archaeon Halobacterium salinarum subsp. NRC-1 during routine laboratory growth. While the majority of these changes occur during the transition from rapid exponential growth to the stationary phase, we were also able to detect transient changes in gene expression. This demonstrated the presence of several additional albeit subtle physiological states that exist beyond what might be anticipated from a direct interpretation of the growth profile. Changes in the abundance of several key intracellular metabolites over the growth curve corroborated observations of changes in gene expression of enzymes that catalyze their synthesis. Next, we investigated the roles of general transcription factors (GTFs) in mediating these global growth-associated gene expression changes. This revealed numerous phenotypic perturbations including slowed growth, gas vesicle biogenesis deficiency and morphologic abnormalities upon the overexpression of a single GTF - TBPd. These phenotypes were quantified and were attributed to a perturbation in the regulation of aconitase. Importantly, our results demonstrate why an experiment design as simple as a simple batch culture can be enormously informative of activities and interrelationships of a large fraction of all genes in a microbe. Halobacterium NRC-1 was grown in shaken (220RPM) complete medium liquid culture at 37°C in duplicate flasks. Samples were selected at 7 timepoints during the growth of this organism representing different phases of growth (e.g. early exponential, logrithmic, stationary etc.). RNA extractions were performed using the Stratagene Absolutely RNA Miniprep Kit and RNA quality checked with the Agilent Bioanalyzer and with Oligo Microarrays were fabricated at the Institute for Systems Biology Microarray Facility. The arrays contain 4 spots per unique 70-mer oligonucleotides for each of 2400 non-redundant genes in Halobacterium NRC-1 Labeling, hybridization and washing have been previously described (Baliga et al. 2002) with 10 μg of RNA from the sample and reference. RNA from the final time point of a replicate experiment was used as the reference. Bias in dye incorporation was accounted for by reversing the labeling dyes (dye-flip). Raw data was processed and converted into log10 ratios with lambda (λ) values determined by a maximum likelihood method.Baliga, N. S., Pan, M., Goo, Y. A., Yi, E. C., Goodlett, D. R., Dimitrov, K., Shannon, P., Aebersold, R., Ng, W. V. & Hood, L. (2002) Proc Natl Acad Sci U S A 99:14913-84.
2010-05-14 | E-GEOD-14832 | biostudies-arrayexpress
Project description:We report detailed characterization of physiological changes encoded by 63% of all genes within the archaeon Halobacterium salinarum subsp. NRC-1 during routine laboratory growth. While the majority of these changes occur during the transition from rapid exponential growth to the stationary phase, we were also able to detect transient changes in gene expression. This demonstrated the presence of several additional albeit subtle physiological states that exist beyond what might be anticipated from a direct interpretation of the growth profile. Changes in the abundance of several key intracellular metabolites over the growth curve corroborated observations of changes in gene expression of enzymes that catalyze their synthesis. Next, we investigated the roles of general transcription factors (GTFs) in mediating these global growth-associated gene expression changes. This revealed numerous phenotypic perturbations including slowed growth, gas vesicle biogenesis deficiency and morphologic abnormalities upon the overexpression of a single GTF - TBPd. These phenotypes were quantified and were attributed to a perturbation in the regulation of aconitase. Importantly, our results demonstrate why an experiment design as simple as a simple batch culture can be enormously informative of activities and interrelationships of a large fraction of all genes in a microbe. Halobacterium NRC-1 was grown in shaken (220RPM) complete medium liquid culture at 37°C in duplicate flasks. 20µg/ml uracil was added to the media. Samples were selected at 7 timepoints during the growth of this organism representing different phases of growth (e.g. early exponential, logrithmic, stationary etc.). RNA extractions were performed using the Stratagene Absolutely RNA Miniprep Kit and RNA quality checked with the Agilent Bioanalyzer and with Oligo Microarrays were fabricated at the Institute for Systems Biology Microarray Facility. The arrays contain 4 spots per unique 70-mer oligonucleotides for each of 2400 non-redundant genes in Halobacterium NRC-1 Labeling, hybridization and washing have been previously described (Baliga et al. 2002) with 10 μg of RNA from the sample and reference. RNA from the final time point of a replicate experiment was used as the reference. Bias in dye incorporation was accounted for by reversing the labeling dyes (dye-flip). Raw data was processed and converted into log10 ratios with lambda (λ) values determined by a maximum likelihood method.Baliga, N. S., Pan, M., Goo, Y. A., Yi, E. C., Goodlett, D. R., Dimitrov, K., Shannon, P., Aebersold, R., Ng, W. V. & Hood, L. (2002) Proc Natl Acad Sci U S A 99:14913-84. Keywords: growth curve, archaea, halobacterium
2010-05-14 | E-GEOD-14835 | biostudies-arrayexpress
Project description:We report detailed characterization of physiological changes encoded by 63% of all genes within the archaeon Halobacterium salinarum subsp. NRC-1 during routine laboratory growth. While the majority of these changes occur during the transition from rapid exponential growth to the stationary phase, we were also able to detect transient changes in gene expression. This demonstrated the presence of several additional albeit subtle physiological states that exist beyond what might be anticipated from a direct interpretation of the growth profile. Changes in the abundance of several key intracellular metabolites over the growth curve corroborated observations of changes in gene expression of enzymes that catalyze their synthesis. Next, we investigated the roles of general transcription factors (GTFs) in mediating these global growth-associated gene expression changes. This revealed numerous phenotypic perturbations including slowed growth, gas vesicle biogenesis deficiency and morphologic abnormalities upon the overexpression of a single GTF - TBPd. These phenotypes were quantified and were attributed to a perturbation in the regulation of aconitase. Importantly, our results demonstrate why an experiment design as simple as a simple batch culture can be enormously informative of activities and interrelationships of a large fraction of all genes in a microbe. Halobacterium NRC-1 delta-ura3 strain was grown in shaken (220RPM) complete medium liquid culture at 37°C in duplicate flasks. 20µg/ml uracil was added to the media. Samples were selected at 6 timepoints during the growth of this organism representing different phases of growth (e.g. early exponential, logrithmic, stationary etc.). RNA extractions were performed using the Stratagene Absolutely RNA Miniprep Kit and RNA quality checked with the Agilent Bioanalyzer and with Oligo Microarrays were fabricated at the Institute for Systems Biology Microarray Facility. The arrays contain 4 spots per unique 70-mer oligonucleotides for each of 2400 non-redundant genes in Halobacterium NRC-1 Labeling, hybridization and washing have been previously described (Baliga et al. 2002) with 10 μg of RNA from the sample and reference. RNA from the final time point of a replicate experiment was used as the reference. Bias in dye incorporation was accounted for by reversing the labeling dyes (dye-flip). Raw data was processed and converted into log10 ratios with lambda (λ) values determined by a maximum likelihood method.Baliga, N. S., Pan, M., Goo, Y. A., Yi, E. C., Goodlett, D. R., Dimitrov, K., Shannon, P., Aebersold, R., Ng, W. V. & Hood, L. (2002) Proc Natl Acad Sci U S A 99:14913-84. Keywords: growth curve, archaea, halobacterium
2010-05-14 | E-GEOD-14836 | biostudies-arrayexpress
Project description:Halobacterium salinarum NRC-1 was grown in CM media, at 37oC in a waterbath with agitation of 125 rpm under constant light. Analysis of transcriptional changes during growth, in addition to mapping of transcriptome structure under the same conditions, provided interesting insights about regulatory logic within prokaryotic coding regions.
2009-06-25 | GSE12977 | GEO
Project description:Growth phase dependent transcriptional and translational changes of Hb. salinarum were examined. In the genome-wide transcriptome analysis, gene expression in exponential versus stationary growth phase was monitored on DNA microarrays. In the global study of translational regulation, the relative amounts of free versus polysome-bound mRNA (separated by gradient centrifugation) were quantified in exponential as well as stationary growth phase using DNA microarrays.
2007-10-31 | E-MEXP-1180 | biostudies-arrayexpress
Project description:Experimentally mapped transcriptome structure of H. salinarum NRC-1 by hybridizing total RNA (including RNA species <200 nt) to genome-wide high-density tiling arrays (60 mer probes with 40 nt overlap between contiguous probes). H. salinarum NRC-1 presents a number of interesting switches in metabolism during growth due to complex changes in EFs including pH, oxygen, nutrition, etc. While most single perturbations (radiation, oxygen, metals, etc.) affect the expression of only ~10% of all genes (Baliga et al, 2004; Kauret al , 2006; Whitehead et al, 2006), the changes during growth resulted in differential regulation of a significantly higher proportion of genes (~63%, 1,518 genes). These conditions enabled the investigation of a wider transcriptional landscape, which includes not only modulation of transcript levels, but also extensive changes in transcriptome structure. We observed altered transcription start sites (TSSs), transcription termination site (TTSs), operon organizations and differential regulation of putative ncRNAs. By integrating hybridization signals with dynamic growth-related changes, we estimated the probability that each tiling array probe was complementary to a transcribed region, mapped locations of putative transcript boundaries and identified 1,574 TSSs and 1,952 TTSs for most genes with some transcriptional variation. In sum, TSSs were assigned to 64% (1,156 singletons and 544 genes in 203 operons) of all annotated genes and TTSs were assigned to 1,114 genes and 202 operons. We were also able to identify 5' and 3' UTRs and revise start sites for 61 genes and 12 operons.
2009-06-25 | GSE12923 | GEO