Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR21528174_1.fastq.gz | Fastqsanger.gz | |||
| SRR21528174_2.fastq.gz | Fastqsanger.gz | |||
| SRR21528175_1.fastq.gz | Fastqsanger.gz | |||
| SRR21528175_2.fastq.gz | Fastqsanger.gz | |||
| SRR21528176_1.fastq.gz | Fastqsanger.gz |
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Project description:Population dynamics of methanogenic genera was investigated in pilot anaerobic digesters. Cattle manure and two-phase olive mill wastes were codigested at a 3:1 ratio in two reactors operated at 37 ï¾°C and 55 ï¾°C. Other two reactors were run with either residue at 37 ï¾°C. Sludge DNA extracted from samples taken from all four reactors on days 4, 14 and 28 of digestion was used for hybridisation with the AnaeroChip, an oligonucleotide microarray targeting those groups of methanogenic archaea that are commonly found under mesophilic and thermophilic conditions (Franke-Whittle et al. 2009, in press, doi:10.1016/j.mimet.2009.09.017).
2010-11-10 | E-MEXP-2453 | biostudies-arrayexpress
Project description:16S rRNA gene amplicon sequences of microbes in liquid media of bio-electrochemical reactors
| PRJDB14341 | ENA
Project description:Low concentrations of pharmaceutical compounds were shown to induce transcriptional responses in isolated microorganisms, which could have consequences on ecosystem dynamics. In order to test if these transcriptional responses could also be observed in complex river microbial communities, biofilm reactors were inoculated with water from two distinct rivers and supplemented with environmentally relevant doses of four pharmaceutical products (erythromycin-ER, gemfibrozil-GM, sulfamethazine-SN and sulfamethoxazole-SL). To follow the expression of functional genes, we constructed a 9,600 features anonymous DNA microarray platform onto which cDNA from the various biofilms was hybridized. The reactor design for biofilm development has been previously described (Lawrence et al., 2004; Lawrence et al., 2000). Two duplicate experiments were carried out, with reactors being inoculated with either water from the WC (nutrient rich) or the SSR (nutrient poor). Treatments consisted in the addition of various pharmaceutical compounds: 1 µg l-1 erythromycin (ER), 1 µg l-1 gemfibrozil (GM), 0.5 µg l-1 sulfamethazine (SN), 0.5 µg l-1 sulfamethoxazole (SL). Nothing was added to control reactors (CO). All treatments were replicated independently three times. A reference sample (composite sample from Wascana Creek reactors used to construct the microarray) was hybridized (Cy5) on each slide.
2010-07-06 | E-GEOD-20501 | biostudies-arrayexpress
Project description:Electrochemically active bacteria (EAB) are capable of electrochemical interactions with electrodes via extracellular electron transfer (EET) pathways and serve as essential components in bioelectrochemical systems. Previous studies have suggested that EAB, such as Shewanella oneidensis MR-1, use cyclic AMP (cAMP) receptor proteins for coordinately regulating the expression of catabolic and EET-related genes, allowing us to hypothesize that the intracellular cAMP concentration is an important factor determining electrochemical activities of EAB. The present study constructed an MR-1 mutant, cyaC-OE that overexpressed cyaC, a gene encoding a membrane-bound class III adenylate cyclase, and examined its electrochemical and transcriptomic characteristics. We show that intracellular cAMP concentration in cyaC-OE is more than double that in wild-type MR-1, and cya-OE generates approximately two-fold higher current in BES than the wild type. In addition, the expression of genes involved in EET and anaerobic carbon catabolism is up-regulated in cya-OE as compared to that in the wild type. These results suggest that enhancement of the intracellular cAMP level is a promising approach for constructing an EAB with high catabolic and electrochemical activities.
2019-11-01 | GSE129679 | GEO
Project description:Cysteine disulfide bridges can be reduced by chemical methods, like an incubation with DTT. However, reduction with an electrochemical method has also been demonstrated. Electrochemical reduction can be implemented online, after LC separation and before mass spectrometry. For the study of antibody molecules, reduction of the intermolecular disulfide bridges between heavy and light chains has been demonstrated in literature. However, the reduction of intramolecular disulfide bridges has remained elusive. Here, we demonstrate the online electrochemical reduction of a therapeutic monoclonal antibody. The complete reduction of these molecules will facilitate the study of recombinant or natural antibodies by MS and MS/MS.
2022-05-27 | PXD021649 | Pride
Project description:Enterococcus faecalis is a common commensal organism and a prolific nosocomial pathogen that causes biofilm-associated infections. Numerous E. faecalis OG1RF genes required for biofilm formation have been identified, but few studies have compared genetic determinants of biofilm formation and biofilm morphology across multiple conditions. Here, we cultured transposon (Tn) libraries in CDC biofilm reactors in two different media and used Tn sequencing (TnSeq) to identify core and accessory biofilm determinants, including many genes that are poorly characterized or annotated as hypothetical. Multiple secondary assays (96-well plates, submerged Aclar, and MultiRep biofilm reactors) were used to validate phenotypes of new biofilm determinants.
2021-04-03 | GSE171419 | GEO
Project description:16S rRNA gene amplicon sequences of microbes in high-ion-strength liquid media of bio-electrochemical reactors
| PRJDB15727 | ENA
Project description:We developed a mini-chemostat system with 16 reactors, each at a working volume of 40 ml. Sensors measure dissolved oxygen in the reactor, while OD600 is measured in the outflow. We further developed a CO2 and pH sensor array that can be plugged in to the outflow of the reactors. The system was used to characterize yeast physiology at four metabolically different conditions: limitations of glucose, both aerobic and anaerobic, nitrogen, and ethanol. The physiology of yeast cells grown at the four different conditions in the mini-chemostat (MC) system was compared with yeast cells grown in a DASGIP 1L system using RNAseq analysis
2019-02-01 | GSE120188 | GEO