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Transcriptome analysis of a model cyanobacterium Synechococcus elongatus PCC7942 under salt stress and protein synthesis-inhibiting stress conditions

ABSTRACT: Transcriptome analysis of a model cyanobacterium Synechococcus elongatus PCC7942 under salt stress and protein synthesis-inhibiting stress conditions

PROVIDER: PRJNA935948 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR23498686.fastq.gz	Fastqsanger.gz
	SRR23498687.fastq.gz	Fastqsanger.gz
	SRR23498688.fastq.gz	Fastqsanger.gz
	SRR23498689.fastq.gz	Fastqsanger.gz
	SRR23498690.fastq.gz	Fastqsanger.gz

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Transcriptome analysis of a model cyanobacterium Synechococcus elongatus PCC7942 under salt stress and protein synthesis-inhibiting stress conditions

Project description:Here, we treated the model cyanobacterium Synechococcus elongatus PCC7942 with streptomycin, which selectively binds to bacterial ribosomes, at a concentration of 50 µg/mL and performed transcriptome analysis using RNA sequencing. In addition to antibiotic stress, we treated salt stress (0.4 M NaCl) and performed RNA sequencing analysis.

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Analysis of gene expression in the rel- + relA+ and rel- + relAE335Q strains of Synechococcus elongatus PCC7942 with RNA sequencing during constant light conditions

Project description:We investigated the role of the basal levels of ppGpp in Synechococcus elongatus PCC7942 in constant light. We performed RNA-seq experiments using the rel- + relA+ and rel- + relAE335Q strains and show that basal levels of ppGpp are required for regulation of global transcription in light.

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Analysis of gene expression in wild type and the rel- strain of Synechococcus elongatus PCC7942 - RNA sequencing during exposure to darkness (cells grown in light/dark conditions)

Project description:We investigated the role of ppGpp in Synechococcus elongatus PCC7942 in light/dark conditions. We performed RNA-seq experiments using wild type and the rel- strain at dusk and during exposure to 12 h of darkness. We show that ppGpp is required for correct response to darkness.

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Analysis of gene expression in the wild type and rel- strains of Synechococcus elongatus PCC7942 with RNA sequencing during constant light conditions

Project description:Rel is an enzyme involved in the metabolism of ppGpp. We investigated the role of ppGpp in Synechococcus elongatus PCC7942 in constant light and after exposure to darkness. We performed RNA-seq experiments using the rel- strain and wild type and show that ppGpp is required for regulation of global transcription in light and in darkness.

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Gene expression in the wild type + relA+ and wild type + relAE335Q strains of Synechococcus elongatus PCC7942 after induction of expression of RelA+ or RelAE335Q with theophylline at subjective dusk - RNA sequencing during constant light conditions

Project description:We investigated the role of ppGpp in Synechococcus elongatus PCC7942 in constant light. We performed RNA-seq experiments using wild type + relA+ and wild type + relAE335Q strains after induction with theophylline starting at subjective dusk. We show that ppGpp induction inhibits global transcription in light.

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Transcription profiling of Synechococcus elongatus wild type, K10 and MuD mutants growth with or without Fe

Project description:Synechococcus elongatus PCC7942 wild type, the IdiB-free S.elongatus mutant K10 (Michel et al. 1999; Microbiology, 145: page 1473-1484) and the IdiC-merodiploid mutant MuD (Pietsch et al. 2007, Photosynth. Res. 94: page 91-108) were cultivated in BG11 medium, continuously bubbled with 2%CO2-enriched air and illuminated with fluorescent bulbs with a light intensity of 100 ﾵmol photons m-s s-1. After an inoculation of a cell density of OD750nm 0.3 the cells were cultivated with iron-sufficient or iron-deficient BG11 medium. The growth time for wild type was 24h and 72h. The two mutants were cultivated for 72h only. Possible differences in the RNA amount after the cultivation with or without iron were examined using the microarray technique. .

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