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Transcriptomics insight into the metabolism of the toxic producing Microcystis aeruginosa PCC 7806

ABSTRACT: Transcriptomics insight into the metabolism of the toxic producing Microcystis aeruginosa PCC 7806

PROVIDER: PRJNA1075057 | ENA |

REPOSITORIES: ENA

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Transcriptomics insight into the metabolism of the toxic producing Microcystis aeruginosa PCC 7806

Project description:Microcystis is a genus of unicellular cyanobacteria capable of growing massively in freshwater ecosystems around the world and producing various toxins such as microcystins. We studied using an RNA-Seq approach the transcriptomes of three axenic strains of Microcystis, comprising the modele strain PCC 7806, selected because of their genetic potential for natural products. We assessed the expression of biosynthetic gene clusters during a 24-hour day/night cycle.

2025-02-01 | GSE255450 | GEO

Microcystis aeruginosa PCC 7806

Project description:Microcystis aeruginosa PCC 7806 Genome sequencing

| PRJNA1104278 | ENA

Microcystis aeruginosa PCC 7806

Project description:Microcystis aeruginosa PCC 7806 Raw sequence reads

| PRJNA1115087 | ENA

Differential expression of transcriptome under copper stress in Microcystis aeruginosa. PCC 7806

Project description:The cyanobacterium Microcystis aeruginosa PCC 7806 was used for a systematic survey of the relationship between copper and microcystins synthesis. Here we have used microarrays to interrogate the global responses to copper additions at 0.5 micromolar (µM) and 3 µM of copper. From the gene level, microarray studies (3 µM copper supplementation) showed effects on iron, sulfur, glutaredoxin and dehydratase homeostasis gene expression. However, in 0.5 µM groups, those genes that significantly enriched in 3 µM groups regulatory were not all found. In the microarray data for copper stress (3 µM) revealed a broad effect on the expression of iron-sulphur cluster associated pathways, such as cysteine biosynthesis. All of these data indicate that Fe / S cluster biogenesis and/or repair were affected by copper in M. aeruginosa.

2018-12-21 | GSE108380 | GEO

Transcriptomics insight into the metabolism of the toxic producing Microcystis aeruginosa

Project description:Transcriptomics insight into the metabolism of the toxic producing Microcystis aeruginosa

| PRJNA1075047 | ENA

Microcystis aeruginosa PCC 7806

Project description:Cool temperature acclimation in toxigenic Microcystis aeruginosa PCC 7806 and its non-toxigenic mutant

| PRJNA1008692 | ENA

Differential expression of transcriptome under copper stress in Microcystis aeruginosa. PCC 7806

Project description:Differential expression of transcriptome under copper stress in Microcystis aeruginosa. PCC 7806

| PRJNA427104 | ENA

Transcriptomics insight into the metabolism of the toxic producing Microcystis aeruginosa

Project description:This SuperSeries is composed of the SubSeries listed below.

2025-01-31 | GSE255454 | GEO

Microcystis aeruginosa PCC 7806

Project description:Toxic, bloom-forming cyanobacterium

| PRJNA15702 | ENA

Functional analysis of PilT from the toxic cyanobacterium Microcystis aeruginosa PCC 7806.

Project description:The evolution of the microcystin toxin gene cluster in phylogenetically distant cyanobacteria has been attributed to recombination, inactivation, and deletion events, although gene transfer may also be involved. Since the microcystin-producing Microcystis aeruginosa PCC 7806 is naturally transformable, we have initiated the characterization of its type IV pilus system, involved in DNA uptake in many bacteria, to provide a physiological focus for the influence of gene transfer in microcystin evolution. The type IV pilus genes pilA, pilB, pilC, and pilT were shown to be expressed in M. aeruginosa PCC 7806. The purified PilT protein yielded a maximal ATPase activity of 37.5 +/- 1.8 nmol P(i) min(-1) mg protein(-1), with a requirement for Mg(2+). Heterologous expression indicated that it could complement the pilT mutant of Pseudomonas aeruginosa, but not that of the cyanobacterium Synechocystis sp. strain PCC 6803, which was unexpected. Differences in two critical residues between the M. aeruginosa PCC 7806 PilT (7806 PilT) and the Synechocystis sp. strain PCC 6803 PilT proteins affected their theoretical structural models, which may explain the nonfunctionality of 7806 PilT in its cyanobacterial counterpart. Screening of the pilT gene in toxic and nontoxic strains of Microcystis was also performed.

| S-EPMC1855755 | biostudies-literature

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