Ontology highlight
ABSTRACT:
PROVIDER: PRJNA1113867 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| Other | ||||
| SRR29095702.fastq.gz | Fastqsanger.gz | |||
| SRR29095704.fastq.gz | Fastqsanger.gz | |||
| SRR29095705.fastq.gz | Fastqsanger.gz | |||
| SRR29095710.fastq.gz | Fastqsanger.gz |
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Project description:The increased urban pressures are often associated with specialization of microbial communities. Microbial communities being a critical player in the geochemical processes, makes it important to identify key environmental parameters that influence the community structure and its function.In this proect we study the influence of land use type and environmental parameters on the structure and function of microbial communities. The present study was conducted in an urban catchment, where the metal and pollutants levels are under allowable limits. The overall goal of this study is to understand the role of engineered physicochemical environment on the structure and function of microbial communities in urban storm-water canals.
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Project description:The increased urban pressures are often associated with specialization of microbial communities. Microbial communities being a critical player in the geochemical processes, makes it important to identify key environmental parameters that influence the community structure and its function.In this proect we study the influence of land use type and environmental parameters on the structure and function of microbial communities. The present study was conducted in an urban catchment, where the metal and pollutants levels are under allowable limits. The overall goal of this study is to understand the role of engineered physicochemical environment on the structure and function of microbial communities in urban storm-water canals. Water and sediment samples were collected after a rain event from Sungei Ulu Pandan watershed of >25km2, which has two major land use types: Residential and industrial. Samples were analyzed for physicochemical variables and microbial community structure and composition. Functional gene abundance was determined using GeoChip.
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Project description:In plants, programmed cell death (PCD) is involved in both the development and in the response to biotic and abiotic aggressions. In early stages of PCD, mitochondrial membranes are made permeable by the formation of permeability transition pores, whose protein composition is debated. Since flooding stress can produce PCD in several plant species, the first goal of this work was to know if flooding stress could be used to induce PCD in Beta vulgaris roots. To do this, two months old beet plants were flood-stressed from one to five days, and the alterations indicating PCD in stressed beetroot cells were observed with a confocal fluorescence microscope. In addition, cytochrome c was released from mitochondria. After assessing that flood stress induced PCD in beetroots, the composition of mitochondrial protein complexes was observed in control and flood-stressed beetroots. Protein complexes from isolated mitochondria were separated by native gel electrophoresis, and their proteins were identified by mass spectrometry. The spectra count of three isoforms of voltage-dependent anion-selective channels (VDAC) increased after one day of flooding. In addition, the size of the complexes formed by VDAC was higher in beetroots flood-stressed for one day (~200 kDa) compared with non-stressed ones (~100 kDa). Other proteins, like chaperonin CPN60-2, also formed complexes with different masses in control and flood-stressed beetroots. Finally, possible interactions of VDAC with other proteins were found performing a cluster analysis. These results indicate that mitochondrial protein complexes formed by VDAC could be involved in the process of programmed cell death in flood-stressed beetroots
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