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- W3048446105 abstract "Graphene oxide has become a very appealing nanomaterial during the last years for many different applications, but its possible impact in different biological systems remains unclear. Here, an assessment to understand the toxicity of different commercial graphene oxide nanomaterials on the unicellular fungal model organism Saccharomyces cerevisiae was performed. For this task, an RNA purification protocol was optimized to avoid the high nucleic acid absorption capacity of graphene oxide. The developed protocol is based on a sorbitol gradient separation process for the isolation of adequate ribonucleic acid levels (in concentration and purity) from yeast cultures exposed to the carbon derived nanomaterial. To pinpoint potential toxicity mechanisms and pathways, the transcriptome of S. cerevisiae exposed to 160 mg L-1 of monolayer graphene oxide (GO) and graphene oxide nanocolloids (GOC) was studied and compared. Both graphene oxide products induced expression changes in a common group of genes (104), many of them related to iron homeostasis, starvation and stress response, amino acid metabolism and formate catabolism. Also, a high number of genes were only differentially expressed in either GO (236) or GOC (1077) exposures, indicating that different commercial products can induce specific changes in the physiological state of the fungus." @default.
- W3048446105 created "2020-08-18" @default.
- W3048446105 creator A5007213208 @default.
- W3048446105 creator A5038312495 @default.
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- W3048446105 date "2020-08-11" @default.
- W3048446105 modified "2023-09-25" @default.
- W3048446105 title "Commonalities and Differences in the Transcriptional Response of the Model Fungus Saccharomyces cerevisiae to Different Commercial Graphene Oxide Materials" @default.
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- W3048446105 doi "https://doi.org/10.3389/fmicb.2020.01943" @default.
- W3048446105 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/7431627" @default.
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