2022
DOI: 10.1093/dnares/dsac037
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Rapid transcriptomic and physiological changes in the freshwater pennate diatomMayamaea pseudoterrestrisin response to copper exposure

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 prop… Show more

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Cited by 3 publications
(2 citation statements)
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“…Most strikingly, these F ST outliers are enriched for signal transduction, cell communication, response to external stimuli, and defense response. This includes various protein kinases: (i) calcium/calmodulin-dependent protein kinases which are differentially expressed in S. marinoi in response to hyposalinity (11) and which might play a role in osmotic sensing in diatoms (54), (ii) serine/threonine protein kinases, including mTOR , which have been involved in stress responses and resting cell formation in diatoms (55, 56), (iii) cGMP-dependent protein kinases, which play a role in the salt stress response of plants (57), and are differentially expressed in diatoms in response to copper exposure and deficiency (58), (iv) histidine kinases, which are involved in signal transduction across the cell membrane, nutrient sensing, light perception, and oxidative and osmotic stress response in plants, fungi, and algae (59), and lastly, (v) cAMP-dependent protein kinases which rely on the ancient signaling molecule cAMP that serves as a stress indicator across the tree of life (60). Several of the histidine kinases were also GEA-outliers.…”
Section: Resultsmentioning
confidence: 99%
“…Most strikingly, these F ST outliers are enriched for signal transduction, cell communication, response to external stimuli, and defense response. This includes various protein kinases: (i) calcium/calmodulin-dependent protein kinases which are differentially expressed in S. marinoi in response to hyposalinity (11) and which might play a role in osmotic sensing in diatoms (54), (ii) serine/threonine protein kinases, including mTOR , which have been involved in stress responses and resting cell formation in diatoms (55, 56), (iii) cGMP-dependent protein kinases, which play a role in the salt stress response of plants (57), and are differentially expressed in diatoms in response to copper exposure and deficiency (58), (iv) histidine kinases, which are involved in signal transduction across the cell membrane, nutrient sensing, light perception, and oxidative and osmotic stress response in plants, fungi, and algae (59), and lastly, (v) cAMP-dependent protein kinases which rely on the ancient signaling molecule cAMP that serves as a stress indicator across the tree of life (60). Several of the histidine kinases were also GEA-outliers.…”
Section: Resultsmentioning
confidence: 99%
“…Further species must therefore be examined in order to assess whether these trends reflect species-specific variability or represent broader trends between centric and pennate lineages. The number of available diatom genomes has recently increased significantly [25][26][27][28][29][30][31][32][33][34]. Our aim was to examine the diversity of Ca 2+ channel types across a wider variety of diatom species to determine broad trends in their composition in comparison with other photosynthetic stramenopiles.…”
Section: Introductionmentioning
confidence: 99%