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A genome-wide nanotoxicology screen of Saccharomyces cerevisiae mutants reveals the basis for cadmium sulphide quantum dot tolerance and sensitivityMarmiroli, Marta ...The use of cadmium sulphide quantum dots (CdS QDs) is increasing, particularly in the electronics industry. Their size (1%10%nm in diameter) is, however, such that they can be taken up by living ... cells. Here, a bakers% yeast (Saccharomyces cerevisiae) deletion mutant collection has been exploited to provide a high-throughput means of revealing the genetic basis for tolerance/susceptibility to CdS QD exposure. The deletion of 112 genes, some associated with the abiotic stress response, some with various metabolic processes, some with mitochondrial organization, some with transport and some with DNA repair, reduced the level of tolerance to CdS QDs. A gene ontology analysis highlighted the role of oxidative stress in determining the cellular response. The transformation of sensitive mutants with centromeric plasmids harbouring DNA from a wild type strain restored the wild type growth phenotype when the complemented genes encoded either HSC82, DSK2 or ALD3. The use of these simple eukaryote knock-out mutants for functional toxicogenomic analysis will inform studies focusing on higher organisms.Source: Nanotoxicology. - ISSN 1743-5390 (Vol. 10, iss. 1, 2016, str. 84-93)Type of material - article, component partPublish date - 2015Language - englishCOBISS.SI-ID - 1538202564
Author
Marmiroli, Marta |
Pagano, Luca |
Pasquali, Francesco |
Zappettini, Andrea |
Tosato, Valentina |
Bruschi, Carlo V. |
Marmiroli, Nelson
Topics
barcode yeast mutants |
toxicology |
gene ontology analysis |
genetic complementation |
yeast transformation |
mutanti |
kvasovke |
toksikologija |
genska ontologija |
transformacije
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Marmiroli, Marta | ![]() |
Pagano, Luca | ![]() |
Pasquali, Francesco | ![]() |
Zappettini, Andrea | ![]() |
Tosato, Valentina | ![]() |
Bruschi, Carlo V. | ![]() |
Marmiroli, Nelson | ![]() |
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