Ontology highlight
ABSTRACT:
PROVIDER: PRJNA1114712 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR29134900_1.fastq.gz | Fastqsanger.gz | |||
| SRR29134900_2.fastq.gz | Fastqsanger.gz | |||
| SRR29134901_1.fastq.gz | Fastqsanger.gz | |||
| SRR29134901_2.fastq.gz | Fastqsanger.gz | |||
| SRR29134902_1.fastq.gz | Fastqsanger.gz |
Items per page: 5 1 - 5 of 218 |
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Project description:This SuperSeries is composed of the following subset Series: GSE38738: High contaminant loads in Lake Apopka mesocosms affect the ovarian transcriptome in largemouth bass [April] GSE38773: High contaminant loads in Lake Apopka mesocosms affect the ovarian transcriptome in largemouth bass [January] Refer to individual Series
2012-08-31 | E-GEOD-38774 | biostudies-arrayexpress
Project description:The goal of this study is to characterize a gshF::cam L. plantarum strain NZ7608. From phenotype characterization we have observed that the gene gshF plays a role in hydrogen peroxide resistance in L. plantarum and therefore we wanted to analyze the global transcriptome response of strain NZ7608 towards peroxide and compared this to wild type response. In this experiment we compared two L. plantarum strains: WCFS1 (wild type) and NZ7618 (gshF::cam). Both strains were grown -in duplo- on CDM containing 0.5% glucose at 37 degrees celsius. When cell density reached OD600=1.0 a hydrogen peroxide stress was given to the cultures to a final concentration of 10mM. Samples were taken at times (0 10 and 30 minutes) upon hydrogen peroxide. All withdrawn samples were used for this microarray experiment. Keywords: peroxide, gshF mutant
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Project description:Using data from microarray experiments, we investigated the effects of excess hydrogen peroxide on D. vulgaris. Keywords: stress response, time course Comparison of cells treated with 1 mM H2O2,sterile water Peroxide to untreated cells at times of 0,120,240,30,480,60 min.
2011-07-04 | E-GEOD-21441 | biostudies-arrayexpress
Project description:Series of DNA microarrays (4) comparing the M. catarrhalis strain 035E response to 50 mM hydrogen peroxide relative to a water-only control. Wild-type cells were exposed to either 50 mM hydrogen peroxide or a water-only control for 15 minutes. RNA was extracted and DNA microarray analysis performed. 4 biologic replicates were studied. One dye swap was included in this series analysis.
2010-12-07 | E-GEOD-24331 | biostudies-arrayexpress
Project description:Lake Apopka (Fl, USA) experienced heavy uses of organochlorine pesticides (OCPs) in the 1950s-1970 during an intense agricultural period. As a result, the region remains heavily contaminated and was declared a Superfund site by the US Environmental Protection Agency. Aquatic organisms inhabit the freshwater systems in and around Lake Apopka, however the impacts of sub chronic exposure to OCPs in this natural environment are not known. The objectives of this study were to determine the effects of the contamination on the reproductive axis of largemouth bass (LMB) (Micropterus salmoides). In October (2007), healthy LMB were stocked into natural mesocosms and remained in mesocosms before being sampled in January 2008 (at early oogenesis). Additional LMB were placed into mesocosms for 2 months in February (2008) and sampled in April (2008) (oocyte maturation). LMB placed in these mesocosms for four months had a 2-20X higher contaminant load for OCPs (e.g. DDE, dieldrin, methoxychlor) than LMB collected from reference sites. Gonadosomatic index for LMB collected in April from the mesocosms were not different that LMB from reference sites. Vitellogenin levels in LMB collected from the mesocosms in January and April were not significantly different than fish collected from Welaka in late vitellogenin or early maturation respectively. Steroids were depressed in mesocosm fish. Microarray analysis revealed that the expression profiles of genes in the LMB ovary were unique compared to LMB collected form reference sites. Transcripts that showed altered abundance in LMB from the mesocosms were insulin-like growth factor I and steroidogenic acute regulatory protein. Interestingly, differentially expressed transcripts showed a significant and positive correlation for LMB sampled in January and April despite the 3 month period in between samplings. Sub-network enrichment analysis for cellular processes showed that retinoic acid metabolism and germ-cell development were decreased in mesocosm-exposed fish but processes such as vitellogenesis, amino acid catabolism, granulosa cell function, vitamin D metabolism, and hormone biosynthesis were increased in mesocosm-exposed fish. These data suggest that (1) LMB from the mesocosms are exhibiting unique gene profiles that may impair normal reproduction and that (2) microarray analysis in the field can provide site specific information by discriminating LMB from reference and polluted sites.
2012-08-31 | GSE38738 | GEO
Project description:Lake Apopka (Fl, USA) experienced heavy uses of organochlorine pesticides (OCPs) in the 1950s-1970 during an intense agricultural period. As a result, the region remains heavily contaminated and was declared a Superfund site by the US Environmental Protection Agency. Aquatic organisms inhabit the freshwater systems in and around Lake Apopka, however the impacts of sub chronic exposure to OCPs in this natural environment are not known. The objectives of this study were to determine the effects of the contamination on the reproductive axis of largemouth bass (LMB) (Micropterus salmoides). In October (2007), healthy LMB were stocked into natural mesocosms and remained in mesocosms before being sampled in January 2008 (at early oogenesis). Additional LMB were placed into mesocosms for 2 months in February (2008) and sampled in April (2008) (oocyte maturation). LMB placed in these mesocosms for four months had a 2-20X higher contaminant load for OCPs (e.g. DDE, dieldrin, methoxychlor) than LMB collected from reference sites. Gonadosomatic index for LMB collected in April from the mesocosms were not different that LMB from reference sites. Vitellogenin levels in LMB collected from the mesocosms in January and April were not significantly different than fish collected from Welaka in late vitellogenin or early maturation respectively. Steroids were depressed in mesocosm fish. Microarray analysis revealed that the expression profiles of genes in the LMB ovary were unique compared to LMB collected form reference sites. Transcripts that showed altered abundance in LMB from the mesocosms were insulin-like growth factor I and steroidogenic acute regulatory protein. Interestingly, differentially expressed transcripts showed a significant and positive correlation for LMB sampled in January and April despite the 3 month period in between samplings. Sub-network enrichment analysis for cellular processes showed that retinoic acid metabolism and germ-cell development were decreased in mesocosm-exposed fish but processes such as vitellogenesis, amino acid catabolism, granulosa cell function, vitamin D metabolism, and hormone biosynthesis were increased in mesocosm-exposed fish. These data suggest that (1) LMB from the mesocosms are exhibiting unique gene profiles that may impair normal reproduction and that (2) microarray analysis in the field can provide site specific information by discriminating LMB from reference and polluted sites.
2012-08-31 | GSE38773 | GEO
Project description:Cardiomyocytes proteins were investigated for their glutathionylation in response to hydrogen peroxide generated from glucose oxidase and using a clickable glutathione derivative. After exposure, or not, to hydrogen peroxide the glutathionylated proteins were enriched and LC-MS/MS analyses was performed.
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