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Gene expression data from yeast exposure to pyrimethanil

ABSTRACT: Pyrimethanil (PYR) is a world-wide used fungicide approved for use in plant protection products in Agriculture, and with some (eco)toxicological concerns.We aimed at finding molecular biomarkers in the model yeast Saccharomyces cerevisiae that may be used to predict potential cytotoxic effects of this xenobiotic while providing mechanistic clues possibly relevant for experimentally less accessible non-target eukaryotes. We used microarrays to carry out a gene expression profiling analysis in S. cereviseae strain BY4741 upon 2 hours exposure to PYR at concentrations exerting moderate to median levels of phenotypic effects (inhibition of yeast growth rate). Two exposure scenarios were analysed, namely the 20% and 50%-inhibitory concentrations of PYR (IC20 and IC50, respectively), compared to control cells not exposed to the fungicide (CT02).

ORGANISM(S): Saccharomyces cerevisiae Schizosaccharomyces pombe

PROVIDER: GSE53126 | GEO | 2014/05/23

SECONDARY ACCESSION(S): PRJNA230924

REPOSITORIES: GEO

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Gene expression data from yeast exposure to pyrimethanil

Project description:Pyrimethanil (PYR) is a world-wide used fungicide approved for use in plant protection products in Agriculture, and with some (eco)toxicological concerns.We aimed at finding molecular biomarkers in the model yeast Saccharomyces cerevisiae that may be used to predict potential cytotoxic effects of this xenobiotic while providing mechanistic clues possibly relevant for experimentally less accessible non-target eukaryotes. We used microarrays to carry out a gene expression profiling analysis in S. cereviseae strain BY4741 upon 2 hours exposure to PYR at concentrations exerting moderate to median levels of phenotypic effects (inhibition of yeast growth rate). Two exposure scenarios were analysed, namely the 20% and 50%-inhibitory concentrations of PYR (IC20 and IC50, respectively), compared to control cells not exposed to the fungicide (CT02). Exponential standardized cell suspensions of S. cerevisiae BY4741 in minimal growth medium were incubated in the presence of 20 and 110 mg/L of PYR (corresponding to the PYR IC20 and IC50, respectively), or in medium non-supplemented with the fungicide (control cells, CT02) during 2 h, and used for total RNA isolation and hybridization on Affymetrix microarrays. Exposure experiments with both concentrations of PYR and with control cells were carried out together. For each exposure condition, independent biological triplicates were processed and analysed.

2014-05-23 | E-GEOD-53126 | biostudies-arrayexpress

Gene expression data from yeast exposure to equitoxic doses of six different pesticides

Project description:This study focus a comparative toxicogenomic analysis of the effects of four herbicides (alachlor, ALA, S-metolachlor, S-MET, diuron, DIU, and MCPA-methyl ester, MCPA-ME), one insecticide (carbofuran, CAB), and one fungicide (pyrimethanil, PYR), in the model yeast Saccharomyces cerevisiae, to predict potential cytotoxic effects of these xenobiotics while providing mechanistic clues possibly relevant for experimentally less accessible non-target eukaryotes. The six model pesticides selected have been used worldwide in agricultural activities, at the present time or in the past, and have different modes of action on their target-organisms. Moreover, some of them are currently in Annex 1 of EC Directive 1107/2009 (repealing 91/414), that is they are in use in the EU, but having some ecotoxicological concerns (e.g. S-MET, PYR, MCPA-ME), others have their use restricted and/or are priority substances under the Water Framework Directive (e.g. ALA, DIU), and one was banned (e.g. CAB). We used genome microarrays to obtain gene expression profiles in S. cerevisiae strain BY4741 upon 2 hours exposure to pesticide concentrations exerting a moderate inhibition of yeast growth rate. To obtain comparable gene expression profiles representing yeast response to the six different pesticides, all exposure treatments were performed with equitoxic pesticide concentrations that generated equivalent responses at the phenotypic level (namely, 20% growth-inhibitory concentrations, hereafter designated as the pesticide IC20).

2018-04-02 | GSE53125 | GEO

Gene expression data from yeast exposure to alachlor

2011-08-28 | GSE28677 | GEO

Gene expression data from yeast exposure to alachlor

Project description:The world-wide used herbicide alachlor is among the priority substances listed in the European Water Framework Directive. We aimed at finding molecular biomarkers in the model yeast Saccharomyces cerevisiae that may be used to predict potential cytotoxic effects of this xenobiotic while providing mechanistic clues possibly relevant for experimentally less accessible non-target eukaryotes. We used microarrays to carry out a gene expression profiling analysis in S. cereviseae strain BY4741 upon 2 hours exposure to alachlor at concentrations exerting slight to moderate levels of phenotypic effects (inhibition of yeast growth rate). Two exposure scenarios were analysed, namely the lowest observed effect concentration (LOEC; ~8% growth inhibition) and the 20%-inhibitory concentration (IC20), compared to control cells not exposed to the herbicide (CT02). Exponential standardized cell suspensions of S. cerevisiae BY4741 in minimal growth medium were incubated in the presence of 110 or 200 mg/L of ALA (corresponding to the LOEC and the IC20, respectively, of alachlor) or in medium non-supplemented with the herbicide (control cells, CT02) during 2 h, and used for total RNA isolation and hybridization on Affymetrix microarrays. Exposure experiments with each concentration of alachlor versus controls were carried out independently. For each exposure condition, independent biological triplicates were processed and analysed.

2011-08-27 | E-GEOD-28677 | biostudies-arrayexpress

Effect of the antifungal protein PeAfpA in the expression profile of Saccharomyces cerevisiae BY4741 strain.

Project description:Transcriptomic study to characterize the interaction of the Penicillium expansum antifungal protein PeAfpA with the the model yeast Saccharomyces cerevisiae. For this, the transcriptome of S. cerevisiae BY4741 strain was compared among samples treated with increasing concentrations of PeAfpA.

2023-11-09 | GSE233704 | GEO

RNA-seq of Daphnia magna exposed to prochloraz in a 3-generation experiment

Project description:For most chemicals, environmental toxicity is only investigated for a single generation. In this study we investigate the effect of the fungicide prochloraz across generations in Daphnia magna. The study design included two exposure scenarios; one where all three generations were continuously exposed to prochloraz (100 ug/L) and one where only the first generation (F0) was exposed. We studied effects at different levels of biological organization combining key phenotypic effects, such as growth and reproduction, CYP enzyme activity, metabolomics and for generation F2 also transcriptomics

2020-12-01 | E-MTAB-9309 | biostudies-arrayexpress

Differential hepatic gene expression in zebrafish (Danio rerio) exposed to the fungicide chlorothalonil reveals estrogenicity

Project description:Chlorothalonil (2,4,5,6-tetrachloroisophthalonitrile) is a broad spectrum fungicide used extensively in agricultural crops . The aim of this study is to analyse the effects of Chorothalonil on the gene expression profiles in zebrafish (Danio rerio), exposed to two concentrations of the fungicide in the water. Nominal concentrations were 1) Low 0.007mg/l (environmentally relevent) and 2) High 0.035mg/ml . A commercial third generation microarray for Danio rerio (Agielnt V3, 4x44k) was used to identify patterns of gene expression in male livers during a 96h toxicological assay. Replicates: Six control, five low and four high concentrations ; 15 samples examined. Expression profiles of male livers compared. Two concentrations of the fungicide chlorothalonil were compared.

2015-06-17 | E-GEOD-67600 | biostudies-arrayexpress

Analysis of transcriptional profiles in Saccharomyces cerevisiae exposed to bisphenol A

Project description:We analyzed genome-wide transcriptional profiles of Saccharomyces cerevisiae BY4742 strain in response to BPA, focusing on two exposure scenarios: (i) low-observed-effect concentration (<10% inhibition) to examine chronic effect of BPA on yeast population, and (ii) high-inhibitory concentration (>70% inhibition) to study acute effect. Initially, yeast cells were exposed to various concentrations of BPA. 50 mg/L and 300 mg/L BPA were determined as low-observed-effect concentration and the high-inhibitory concentration, respectively. Transcriptional profiles indicated that 81 genes were repressed and 104 genes were induced in response to 50 mg/L BPA. On the other hand, in 300 mg/L BPA exposure, 378 genes were down-regulated, while 606 genes were significantly up-regulated. Our data showed that there were similar processes affected by both concentrations such as mitochondria, nucleobase-containing small molecule metabolic process, transcription from RNA polymerase II promoter, and mitotic cell cycle and associated processes. However, different modes of actions of the BPA were found between two concentrations. 300 mg/L BPA exposure showed severe effects on the processes by repressing or inducing several genes or total mechanisms with high level of expression changes, while 50 mg/L BPA exposure changed the expression of some important genes with low level of expression changes in the processes. These results suggest that yeast cells respond via different ways to the different concentrations of BPA at transcriptomic level.

2018-10-19 | GSE74177 | GEO

Differential hepatic gene expression in zebrafish (Danio rerio) exposed to the fungicide chlorothalonil reveals estrogenicity

2015-06-17 | GSE67600 | GEO

Transcription profiling of mouse embryonic stem cell line D3 differentiation cultures treated by different concentrations of flusilazole.

Project description:This study investigated the effect of the compound concentration of Flusilazole on gene expression responses in Embryonic Stem Cell Differentiation Cultures. Flusilazole is used in agriculture as a fungicide, but has developmental toxic effects. To study the effects of its concentration on development, we exposed Embryonic Stem Cell Differentiation Cultures to six concentrations and a control. Gene expression responses after 24h exposure were compared to untreated samples at 0, 24 and 48 h using microarray gene expression profiling.

2011-07-02 | E-TABM-1027 | biostudies-arrayexpress

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