Rhodospirillum rubrum F11
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA67413 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| GCA_000225955.1_sequence_report.txt | Txt |
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Project description:In the present study, the susceptibility of the purple pigmented photosynthetic alphaproteobacterium Rhodospirillum rubrum S1H to gamma irradiation was investigated and its molecular response was characterised by means of gene expression analysis. R. rubrum S1H appears to be about 4 times more sensitive than the model strain Escherichia coli MG1655 to cobalt-60 gamma irradiation. Whole genome response of R. rubrum to 25 Gy revealed the common expression of SOS response related genes in both rich and minimal media. Quantitative expression of the lexA gene was followed after various recovery time following gamma irradiation and showed differential gene expression pattern between minimal and rich medium. This work paves the way for forthcoming molecular studies on the effect of ionizing radiation on R. rubrum S1H and the other MELiSSA strains. Keywords: Rhodospirillum rubrum; ionizing radiation tolerance; microarray; quantitative PCR.
2015-11-10 | GSE23799 | GEO
Project description:This SuperSeries is composed of the following subset Series: GSE14239: MESSAGE 2 space experiment with Rhodospirillum rubrum S1H GSE14241: BASE-A space experiment with Rhodospirillum rubrum S1H Refer to individual Series
2010-05-16 | E-GEOD-14265 | biostudies-arrayexpress
Project description:In the present study, the susceptibility of the purple pigmented photosynthetic alphaproteobacterium Rhodospirillum rubrum S1H to gamma irradiation was investigated and its molecular response was characterised by means of gene expression analysis. R. rubrum S1H appears to be about 4 times more sensitive than the model strain Escherichia coli MG1655 to cobalt-60 gamma irradiation. Whole genome response of R. rubrum to 25 Gy revealed the common expression of SOS response related genes in both rich and minimal media. Quantitative expression of the lexA gene was followed after various recovery time following gamma irradiation and showed differential gene expression pattern between minimal and rich medium. This work paves the way for forthcoming molecular studies on the effect of ionizing radiation on R. rubrum S1H and the other MELiSSA strains. Keywords: Rhodospirillum rubrum; ionizing radiation tolerance; microarray; quantitative PCR. Two-condition experiments. Comparing samples after exposure to gamma (Co-60) irradiation with a non-irradiated sample. At least biological duplicates. Each array contains 3 technical replicates.
2015-11-10 | E-GEOD-23799 | biostudies-arrayexpress
Project description:In the frame of the European MELiSSA project, which aims to develop a closed biological life support system for forthcoming long term space exploration missions, the study of the alpha-proteobacterium Rhodospirillum rubrum S1H cultivated in space related environmental conditions has started. In the present work, the bacterium was grown using two different microgravity simulators, namely the Rotating Wall Vessel (RWV) and the Random Positioning Machine (RPM) and its response was evaluated at both the transcriptomic and proteomic levels using respectively a dedicated whole-genome microarray and high-througput proteomics. At the transcriptomic level, 13 genes were found significantly induced in the RWV samples and all 13 were included in the more pronounced response of 235 induced genes of R. rubrum S1H to the RPM cultivation. On the other hand, at the proteomic level, a few common proteins were found to be differentially expressed in RWV and RPM while the RWV appeared to induce a higher number of significantly regulated proteins. However, the transcriptomic and the proteomic approaches appeared to be complementary pointing out the likely interrelation between quorum sensing, cell pigmentation and cell aggregation in R. rubrum S1H. Future studies will aim to characterize this unknown quorum sensing regulon.
2010-06-05 | GSE19942 | GEO
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