Transcriptome Profiling of Zymomonas mobilis Under ethanol stress
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ABSTRACT:
ORGANISM(S): Zymomonas mobilis subsp. mobilis ZM4 = ATCC 31821 Zymomonas mobilis
PROVIDER: GSE39558 | GEO | 2013/12/31
SECONDARY ACCESSION(S): PRJNA171122
REPOSITORIES: GEO
Similar Datasets
Project description:Investigation of the expression profiling of the ethanologenic Zymomonas mobilis in response to ethanol stress. A six chip study using total RNA recovered from three separate wild-type cultures of Zymomonas mobilis ATCC31821 and three separate cultures of a triple treated with 5% ethanol. Each chip measures the expression level of 1800 genes from Zymomonas mobilis ATCC31821 and the associated plasmids, with three-fold technical redundancy.
2013-12-31 | E-GEOD-39558 | biostudies-arrayexpress
Project description:Investigation of the expression profiling of the ethanologenic Zymomonas mobilis in response to furfural stress.
2012-05-09 | GSE37848 | GEO
Project description:Investigation of the expression profiling of the ethanologenic Zymomonas mobilis in response to furfural stress. A six chip study using total RNA recovered from three separate wild-type cultures of Zymomonas mobilis ATCC31821 and three separate cultures of a triple treated with 1.0 g/l furfural. Each chip measures the expression level of 1800 genes from Zymomonas mobilis ATCC31821 and the associated plasmids, with three-fold technical redundancy.
2012-05-08 | E-GEOD-37848 | biostudies-arrayexpress
Project description:Background Zymomonas mobilis ZM4 is a capable ethanologenic bacterium with high ethanol productivity and ethanol tolerance. Previous studies indicated that several stress-related proteins and changes in the ZM4 membrane lipid composition may contribute to ethanol tolerance. However, the molecular mechanisms of its ethanol stress response have not been elucidated fully. Methodology/Principal Findings In this study, ethanol stress responses were investigated using systems biology approaches. Medium supplementation with an initial 47 g/L (6% v/v) ethanol reduced Z. mobilis ZM4 glucose consumption, growth rate and ethanol productivity compared to that of untreated controls. A proteomic analysis of early exponential growth identified about one thousand proteins, or approximately 55% of the predicted ZM4 proteome. Proteins related to metabolism and stress response such as chaperones and key regulators were more abundant in the early ethanol stress condition. Transcriptomic studies indicated that the response of ZM4 to ethanol is dynamic, complex and involves many genes from all the different functional categories. Most down-regulated genes were related to translation and ribosome biogenesis, while the ethanol-upregulated genes were mostly related to cellular processes and metabolism. Transcriptomic data were used to update Z. mobilis ZM4 operon models. Furthermore, correlations among the transcriptomic, proteomic and metabolic data were examined. Among significantly expressed genes or proteins, we observe higher correlation coefficients when fold-change values are higher. Conclusions Our study has provided insights into the responses of Z. mobilis to ethanol stress through an integrated “omics” approach for the first time. This systems biology study elucidated key Z. mobilis ZM4 metabolites, genes and proteins that form the foundation of its distinctive physiology and its multifaceted response to ethanol stress. A sixteen array study using total RNA recovered from wild-type cultures of Zymomonas mobilis subsp mobilis ZM4 at different time points of 6, 10, 13.5, and 26h post-inoculation with 6% (v/v) treatment compred to that of control without ethanol supplementation. Two biological replicates for treatment and control condition.
2013-09-04 | E-GEOD-21165 | biostudies-arrayexpress
Project description:Background Zymomonas mobilis ZM4 is a capable ethanologenic bacterium with high ethanol productivity and ethanol tolerance. Previous studies indicated that several stress-related proteins and changes in the ZM4 membrane lipid composition may contribute to ethanol tolerance. However, the molecular mechanisms of its ethanol stress response have not been elucidated fully. Methodology/Principal Findings In this study, ethanol stress responses were investigated using systems biology approaches. Medium supplementation with an initial 47 g/L (6% v/v) ethanol reduced Z. mobilis ZM4 glucose consumption, growth rate and ethanol productivity compared to that of untreated controls. A proteomic analysis of early exponential growth identified about one thousand proteins, or approximately 55% of the predicted ZM4 proteome. Proteins related to metabolism and stress response such as chaperones and key regulators were more abundant in the early ethanol stress condition. Transcriptomic studies indicated that the response of ZM4 to ethanol is dynamic, complex and involves many genes from all the different functional categories. Most down-regulated genes were related to translation and ribosome biogenesis, while the ethanol-upregulated genes were mostly related to cellular processes and metabolism. Transcriptomic data were used to update Z. mobilis ZM4 operon models. Furthermore, correlations among the transcriptomic, proteomic and metabolic data were examined. Among significantly expressed genes or proteins, we observe higher correlation coefficients when fold-change values are higher. Conclusions Our study has provided insights into the responses of Z. mobilis to ethanol stress through an integrated “omics” approach for the first time. This systems biology study elucidated key Z. mobilis ZM4 metabolites, genes and proteins that form the foundation of its distinctive physiology and its multifaceted response to ethanol stress.
2013-09-04 | GSE21165 | GEO
Project description:we aimed to screen candidate kinase genes under the stress of phenolic aldehydes during ethanol fermentation for Zymomonas mobilis ZM4
2022-03-25 | GSE199182 | GEO
Project description:This study is aimed for the identification of novel small RNAs under different ethanol producing conditions. We have applied transcriptome analysis to facilitate identification and validation of 15 novel sRNAs in Zymomonas mobilis. We furthermore characterize their expression in the context of high and low levels of intracellular ethanol. Here, we report that 3 of the sRNAs (Zms2, Zms4 and Zms6) are differentially expressed under aerobic and anaerobic conditions, when low and high ethanol productions are observed respectively. These data suggests that in this organism regulatory RNAs can be associated with metabolic functions involved in ethanol stress responses. Z. mobilis was grown under aerobic and anaerobic conditions which showed low and high ethanol production, respectively. Each samples were sequenced for identification of small RNA candidates and differentially expressed candidates between two conditions.
2014-05-20 | E-GEOD-57773 | biostudies-arrayexpress
Project description:This study is aimed for the identification of novel small RNAs under different ethanol producing conditions. We have applied transcriptome analysis to facilitate identification and validation of 15 novel sRNAs in Zymomonas mobilis. We furthermore characterize their expression in the context of high and low levels of intracellular ethanol. Here, we report that 3 of the sRNAs (Zms2, Zms4 and Zms6) are differentially expressed under aerobic and anaerobic conditions, when low and high ethanol productions are observed respectively. These data suggests that in this organism regulatory RNAs can be associated with metabolic functions involved in ethanol stress responses.
2014-05-20 | GSE57773 | GEO
Project description:High-resolution “tiling” expression data for Zymomonas mobilis ZM4 growing in rich and minimal media, heat-shocked, or at high ethanol
2013-10-31 | GSE51870 | GEO
Project description:Investigation of whole-genome gene expression level changes in RDM-4 strain of Zymomonas mobilis respiration-deficient mutant compared to the wild-type strain. The mutant strains were isolated from the antibiotics-resistant mutants of Z. mobilis ZM6. The RDM strains exhibited much higher ethanol fermentation abilities than the wild-type strain under aerobic conditions. The strains also gained thermotolerance and exhibited higher ethanol productivities at high temperature (39 ºC) under both non-aerobic and aerobic conditions compared with the wild-type strain. To evaluate the mechanisms of aerobic fermentation and thermotolerance of the RDM strain, we performed the microarray experiments.
2010-10-01 | GSE22355 | GEO