Mercury methylation in the bay of Vidy
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ABSTRACT:
PROVIDER: PRJEB20838 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:Investigation of partial genome gene expression level changes in a Desulfovibrio africanus during exponential and stationary phase growth in the presence and absence of 5 ug/L Hg2+ (as HgNO3). Desulfovibrio africanus is a known mercury methylating bacteria
2012-06-07 | GSE32580 | GEO
Project description:Investigation of partial genome gene expression level changes in a Desulfovibrio africanus during exponential and stationary phase growth in the presence and absence of 5 ug/L Hg2+ (as HgNO3). Desulfovibrio africanus is a known mercury methylating bacteria A 3 chip study using total RNA recovered from three separate cultures of Desulfovibrio africanus with 5 ug/L Hg during exponential phase growth, three seperate cultures of Desulfovibrio africanus with 5 ug/L Hg during stationary phase growth, three cultures of Desulfovibrio africanus without Hg during exponential phase growth, and Desulfovibrio africanus without Hg during stationary phase growth. Each chip measures the expression level of 4,585 genes and intergenic regions from Desulfovibrio africanus strain Walvis Bay on a custom Nimblegen format with 75-mer probes with tiled in 4-plex format.
2012-06-06 | E-GEOD-32580 | biostudies-arrayexpress
Project description:Full title: Mercury-Induced Hepatotoxicity in Zebrafish: In Vivo Mechanistic Insights from Transcriptome Analysis, Phenotype Anchoring and Targeted Gene Expression Validation In this study, we performed microarray-based expression profiling on liver of zebrafish exposed to 200 µg/L of mercuric chloride for 8-96 h, to identify global transcriptional programs and biological pathways involved in mercury-induced adaptive responses under in vivo environment.
2010-03-31 | GSE18861 | GEO
Project description:To gain more insight into cellular responses to mercury, we have undertaken a large-scale analysis of the rice transcriptome during mercury stress.More transcripts were responsive to mercury during short (pooled from 1- and 3-h treatments) , as compared to long (24 h) exposures. After short exposures, these induced genes can be divided into different functional categories, mainly on the basis of cell wall formation, chemical detoxification, secondary metabolism, signal transduction and abiotic stress response. Molecular mechanisms for the mercury toxicity in rice roots.
2014-05-28 | GSE41719 | GEO
Project description:The effects of mercury (HgCl2) on barley (Hordeum vulgare L.) growth, physiological traits and gene expression profiles were studied. The shoot to root ratio was decreased in the two levels of HgCl2 (500 and 1000 ?M) assayed, which was related primarily with decreases in shoot dry weight. Moreover stomatal conductance was limited and leaf carbon isotope discrimination decreased. Therefore water uptake limitations seem to be an important component of barley responses to HgCl2. Evidences for decreased stomatal conductance and water uptake limitations were further confirmed by the over expression of ABA related transcripts and down regulation of an aquaporin in roots. Root dry weight was only affected at 1000 ?M HgCl2 and root browning was observed, while several transcripts for lignin biosynthesis were up regulated in HgCl2. Microarray analysis further revealed that growth inhibition in HgCl2 was related to increased expression of genes participating in ethylene biosynthesis and down regulation of several genes participating in DNA synthesis, chromatin structure and cell division, cell wall degradation and modification, oxidative pentose phosphate cycle and nitrogen metabolism pathway. Genes involved in detoxification and defence mechanisms were up regulated including several cytochrome P450s, glucosyltransferases and glutathione-s-transferases and amino acid metabolism participatory genes. It is concluded that barley plants survive in the presence of HgCl2 through several mechanisms that include water uptake limitations, shoot and root growth regulation, increased expression of genes involved in the biosynthesis of several plant protection secondary metabolites and finally through detoxification. Six samples were analysed including 3 biological replicates of mercury exposed roots and 3 controls (no mercury added to the growing solution)
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Project description:Full title: Mercury-Induced Hepatotoxicity in Zebrafish: In Vivo Mechanistic Insights from Transcriptome Analysis, Phenotype Anchoring and Targeted Gene Expression Validation In this study, we performed microarray-based expression profiling on liver of zebrafish exposed to 200 µg/L of mercuric chloride for 8-96 h, to identify global transcriptional programs and biological pathways involved in mercury-induced adaptive responses under in vivo environment. We analyzed 12 arrays for mercuric chloride treated zebrafish liver and 12 arrays for control liver.
2010-06-05 | E-GEOD-18861 | biostudies-arrayexpress
Project description:Forest soil bacterial and fungal communities response towards different mercury contamination levels
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Project description:To gain more insight into cellular responses to mercury, we have undertaken a large-scale analysis of the rice transcriptome during mercury stress.More transcripts were responsive to mercury during short (pooled from 1- and 3-h treatments) , as compared to long (24 h) exposures. After short exposures, these induced genes can be divided into different functional categories, mainly on the basis of cell wall formation, chemical detoxification, secondary metabolism, signal transduction and abiotic stress response. Molecular mechanisms for the mercury toxicity in rice roots. Two-condition experiment, short exposures and long exposures. Comparison of mock control and rice seedlings treated with 25mM Hg during short (pooled from 1- and 3-h treatments), as compared to long (24 h) exposures.; Biological replicates: 3 control replicates (short and long exposures), 3 Hg-treated replicates (short and long exposures).
2014-05-28 | E-GEOD-41719 | biostudies-arrayexpress
Project description:In this study we tested the ability to predict organ injury from transcriptomics data in Sprague-Dawley rats at early time points after exposure to mercury chloride (10 and 34 hours). We selected mercury chloride, a compound extensively used in animal studies for its ability to cause acute kidney and liver damage.
2020-07-07 | GSE147248 | GEO
Project description:Methanogens and iron-reducing bacteria are major contributors to mercury methylation in boreal lake sediments
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