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Project description:Experimental design: 2 genotypes: PI230970 (resistant USDA Plant Introduction (PI) line containing SBR Rpp2 resistance gene) & Embrapa-48 (susceptible Brazilian cultivar) 2 treatments: Soybean rust challenge & mock infection 3 replications 10 time points: 6, 12, 18, 24, 36, 48, 72, 96, 120, 168hai TOTAL: 120 Affymetrix GeneChip(R) Soybean Genome Arrays ****[PLEXdb(http://www.plexdb.org) has submitted this series at GEO on behalf of the original contributor, Martijn van de Mortel. The equivalent experiment is GM2 at PLEXdb.] genotype: PI230970 - time: 006 - Treated or untreated: SBR(3-replications); genotype: PI230970 - time: 006 - Treated or untreated: Mock(3-replications); genotype: PI230970 - time: 012 - Treated or untreated: SBR(3-replications); genotype: PI230970 - time: 012 - Treated or untreated: Mock(3-replications); genotype: PI230970 - time: 018 - Treated or untreated: SBR(3-replications); genotype: PI230970 - time: 018 - Treated or untreated: Mock(3-replications); genotype: PI230970 - time: 024 - Treated or untreated: SBR(3-replications); genotype: PI230970 - time: 024 - Treated or untreated: Mock(3-replications); genotype: PI230970 - time: 036 - Treated or untreated: SBR(3-replications); genotype: PI230970 - time: 036 - Treated or untreated: Mock(3-replications); genotype: PI230970 - time: 048 - Treated or untreated: SBR(3-replications); genotype: PI230970 - time: 048 - Treated or untreated: Mock(3-replications); genotype: PI230970 - time: 072 - Treated or untreated: SBR(3-replications); genotype: PI230970 - time: 072 - Treated or untreated: Mock(3-replications); genotype: PI230970 - time: 096 - Treated or untreated: SBR(3-replications); genotype: PI230970 - time: 096 - Treated or untreated: Mock(3-replications); genotype: PI230970 - time: 120 - Treated or untreated: SBR(3-replications); genotype: PI230970 - time: 120 - Treated or untreated: Mock(3-replications); genotype: PI230970 - time: 168 - Treated or untreated: SBR(3-replications); genotype: PI230970 - time: 168 - Treated or untreated: Mock(3-replications); genotype: Embrapa48 - time: 006 - Treated or untreated: SBR(3-replications); genotype: Embrapa48 - time: 006 - Treated or untreated: Mock(3-replications); genotype: Embrapa48 - time: 012 - Treated or untreated: SBR(3-replications); genotype: Embrapa48 - time: 012 - Treated or untreated: Mock(3-replications); genotype: Embrapa48 - time: 018 - Treated or untreated: SBR(3-replications); genotype: Embrapa48 - time: 018 - Treated or untreated: Mock(3-replications); genotype: Embrapa48 - time: 024 - Treated or untreated: SBR(3-replications); genotype: Embrapa48 - time: 024 - Treated or untreated: Mock(3-replications); genotype: Embrapa48 - time: 036 - Treated or untreated: SBR(3-replications); genotype: Embrapa48 - time: 036 - Treated or untreated: Mock(3-replications); genotype: Embrapa48 - time: 048 - Treated or untreated: SBR(3-replications); genotype: Embrapa48 - time: 048 - Treated or untreated: Mock(3-replications); genotype: Embrapa48 - time: 072 - Treated or untreated: SBR(3-replications); genotype: Embrapa48 - time: 072 - Treated or untreated: Mock(3-replications); genotype: Embrapa48 - time: 096 - Treated or untreated: SBR(3-replications); genotype: Embrapa48 - time: 096 - Treated or untreated: Mock(3-replications); genotype: Embrapa48 - time: 120 - Treated or untreated: SBR(3-replications); genotype: Embrapa48 - time: 120 - Treated or untreated: Mock(3-replications); genotype: Embrapa48 - time: 168 - Treated or untreated: SBR(3-replications); genotype: Embrapa48 - time: 168 - Treated or untreated: Mock(3-replications)
2011-11-22 | E-GEOD-33410 | biostudies-arrayexpress
Project description:Polyhydroxyalkanoates (PHAs) are bio-based, biodegradable polyesters that can be produced from organic-rich waste streams using mixed microbial cultures. To maximize PHA production, mixed microbial cultures may be enriched for PHA-producing bacteria with a high storage capacity through the imposition of cyclic, aerobic feast-famine conditions in a sequencing batch reactor (SBR). Though enrichment SBRs have been extensively investigated a bulk solutions-level, little evidence at the proteome level is available to describe the observed SBR behavior to guide future SBR optimization strategies. As such, the purpose of this investigation was to characterize proteome dynamics of a mixed microbial culture in an SBR operated under aerobic feast-famine conditions using fermented dairy manure as the feedstock for PHA production. At the beginning of the SBR cycle, excess PHA precursors were provided to the mixed microbial culture (i.e., feast), after which followed a long duration devoid of exogenous substrate (i.e., famine). Two-dimensional electrophoresis was used to separate protein mixtures during a complete SBR cycle, and proteins of interest were identified.
2017-01-31 | PXD003126 | Pride
Project description:A triclosan-ciprofloxacin cross-resistant mutant strain of Staphylococcus aureus displays an alteration in the expression of several cell membrane structural and functional genes. Triclosan is an antimicrobial agent found in many consumer products. Several studies have demonstrated that triclosan inhibits the bacterial fatty acid biosynthetic enzyme, enoyl-ACP reductase (FabI). Studies have also demonstrated that decreased susceptibility to triclosan correlates with ciprofloxacin resistance in several bacteria. In these bacteria, resistance to both drugs maps to genes encoding multi-drug efflux pumps. The focus of this study was to determine whether triclosan resistance contributes to ciprofloxacin resistance in Staphylococcus aureus. Gene expression profiling was performed to compare the gene expression profiles of unexposed and triclosan-exposed wild-type and JJ5 determined that an alteration in global gene expression possibly resulting in a change in cell membrane structure and function is likely responsible for triclosan and ciprofloxacin resistance in JJ5. Keywords: Treatment response
2008-01-11 | GSE5799 | GEO
Project description:A triclosan-ciprofloxacin cross-resistant mutant strain of Staphylococcus aureus displays an alteration in the expression of several cell membrane structural and functional genes. Triclosan is an antimicrobial agent found in many consumer products. Several studies have demonstrated that triclosan inhibits the bacterial fatty acid biosynthetic enzyme, enoyl-ACP reductase (FabI). Studies have also demonstrated that decreased susceptibility to triclosan correlates with ciprofloxacin resistance in several bacteria. In these bacteria, resistance to both drugs maps to genes encoding multi-drug efflux pumps. The focus of this study was to determine whether triclosan resistance contributes to ciprofloxacin resistance in Staphylococcus aureus. Gene expression profiling was performed to compare the gene expression profiles of unexposed and triclosan-exposed wild-type and JJ5 determined that an alteration in global gene expression possibly resulting in a change in cell membrane structure and function is likely responsible for triclosan and ciprofloxacin resistance in JJ5. Keywords: Treatment response WT and triclosan resistant mutant were treated with triclosan and their gene expression was compared to their untreated conterparts.
2010-05-26 | E-GEOD-5799 | biostudies-arrayexpress
Project description:Triclosan is a biocidal active agent commonly found in domestic cleaning products, hand sanitizers, cosmetics and personal care products. It is used to control microbial contamination and has a broad-spectrum of activity against many Gram-positive and Gram-negative bacteria. The development of triclosan tolerance with potential cross resistance to clinically relevant antibiotics in zoonotic pathogens is of concern given the widespread use of this active agent in clinical, food processing and domestic environments. Some studies have proposed that an over-dependence on triclosan-containing products could lead to the emergence of clinically important pathogens that are highly tolerant to both biocides and antibiotics. Currently, there is limited understanding of the mechanisms contributing to the emergence of triclosan tolerance in foodborne pathogens at a genetic level. We used microarray analysis to compare gene expression between a wildtype E. coli O157:H19 isolate (WT) with a minimum inhibitory concentration (MIC) to triclosan of 6.25 ug/ml and its laboratory generated triclosan tolerant mutant (M) with a MIC of >8000 ug/ml.
2013-10-15 | GSE39343 | GEO
Project description:Global gene expression analysis of Mycobacterium bovis BCG following Triclosan treatment using Affymetrix GeneChip arrays. Results from this study provide insight into the molecular mechanisms underlying the cellular response of Mycobacterium bovis BCG to Triclosan
2012-12-25 | GSE33800 | GEO
Project description:Global gene expression analysis of Mycobacterium bovis BCG following Triclosan treatment using Affymetrix GeneChip arrays. Results from this study provide insight into the molecular mechanisms underlying the cellular response of Mycobacterium bovis BCG to Triclosan We conducted three independent microarray experiments (biological replicates) in the absence (control) and the presence (experimental) of triclosan. Fold change was calculated as a ration between the signal averages of three untreated (control) and three triclosan-treated (experimental) cultures for 0, 10 and 60min exposures.
2012-12-25 | E-GEOD-33800 | biostudies-arrayexpress
Project description:Acinetobacter baumannii AB042, a triclosan-resistant mutant, was examined for modulated gene expression using whole genome sequencing, transcriptomics, and proteomics in order to understand the mechanism of triclosan-resistance as well as its impact on A. Baumannii.
2016-09-28 | GSE87398 | GEO
Project description:To investigate the hepatic effects of lactational deliver of Triclosan in neonatal mice we performed a gene expression profiling analtsis RNA-Seq of liver using data obtained from RNA-seq of Triclosan treated mice and control group (N=3/group)
2022-04-15 | GSE200705 | GEO
Project description:Triclosan is a biocidal active agent commonly found in domestic cleaning products, hand sanitizers, cosmetics and personal care products. It is used to control microbial contamination and has a broad-spectrum of activity against many Gram-positive and Gram-negative bacteria. The development of triclosan tolerance with potential cross resistance to clinically relevant antibiotics in zoonotic pathogens is of concern given the widespread use of this active agent in clinical, food processing and domestic environments. Some studies have proposed that an over-dependence on triclosan-containing products could lead to the emergence of clinically important pathogens that are highly tolerant to both biocides and antibiotics. Currently, there is limited understanding of the mechanisms contributing to the emergence of triclosan tolerance in foodborne pathogens at a genetic level. We used microarray analysis to compare gene expression between a wildtype E. coli O157:H19 isolate (WT) with a minimum inhibitory concentration (MIC) to triclosan of 6.25 ug/ml and its laboratory generated triclosan tolerant mutant (M) with a MIC of >8000 ug/ml. Gene expression profiling was performed on untreated E. coli O157:H19 wildtype (WTu) and mutant (Mu), and on the wildtype and mutant treated with 6 ug/ml triclosan for 30 minutes (WTt and Mt respectively). RNA was extracted from three independent biological replicates for WTu, Mu, WTt & Mt for hybridization on Affymetrix GeneChip E. coli Genome 2.0 Arrays. Micorarray analysis including pre-processing, normalisation and statistical analysis were performed using R (R, 2007) version 2.6 and Bioconductor (Gentleman et al. 2004, Genome Biol. 5:R80) version 2.1 as previously described by Morris et al.(2009, Physiol. Genomics 39:28-37).
2013-10-15 | E-GEOD-39343 | biostudies-arrayexpress