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- W4302023169 abstract "Abstract Diatoms function as major primary producers, accumulating large amounts of biomass in most aquatic environments. Given their rapid responses to changes in environmental conditions, diatoms are used for the biological monitoring of water quality and for performing ecotoxicological tests in aquatic ecosystems. However, the molecular basis for their toxicity to chemical compounds remains largely unknown. Here, we sequenced the genome of a freshwater diatom, Mayamaea pseudoterrestris NIES-4280, which has been proposed as an alternative strain of Navicula pelliculosa UTEX 664 for performing the Organisation for Economic Co-operation and Development ecotoxicological test. This study shows that M. pseudoterrestris has a small genome and carries the lowest number of genes among freshwater diatoms. The gene content of M. pseudoterrestris is similar to that of the model marine diatom, Phaeodactylum tricornutum. Genes related to cell motility, polysaccharide metabolism, oxidative stress alleviation, intracellular calcium signalling, and reactive compound detoxification showed rapid changes in their expression patterns in response to copper exposure. Active gliding motility was observed in response to copper addition, and copper exposure decreased intracellular calcium concentration. These findings enhance our understanding of the environmental adaptation of diatoms, and elucidate the molecular basis of toxicity of chemical compounds in algae." @default.
- W4302023169 created "2022-10-06" @default.
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- W4302023169 date "2022-10-05" @default.
- W4302023169 modified "2023-10-04" @default.
- W4302023169 title "Rapid transcriptomic and physiological changes in the freshwater pennate diatom <i>Mayamaea pseudoterrestris</i> in response to copper exposure" @default.
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- W4302023169 doi "https://doi.org/10.1093/dnares/dsac037" @default.
- W4302023169 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/36197113" @default.
- W4302023169 hasPublicationYear "2022" @default.
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