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RNA-sequencing analysis of Douglas-fir transcriptome responses to diesel emissions generated with CeO2 nanoparticle additive

Metadata Updated: November 12, 2020

Transcriptome changes of Douglas-fir seedlings were analyzed to investigate molecular impacts of exposure to airborne emissions released from combustion of diesel fuel containing engineered cerium dioxide (CeO2) nanoparticle catalysts (DECe). We analyzed mRNA-sequencing data from exposed one-year-old needles. Our hypothesis is that 2-week chamber exposure to DECe would induce certain distinct transcriptome changes in the needles compared with responses to conventional diesel exhaust (DE) or filtered DECe Gas Phase. Blast2GO gene ontologies (GOs) enriched by significantly up-regulated DECe transcripts were nested within the GOs for DE, however, 93.5% of enriched GOs for significantly down-regulated DECe transcripts were unique. DECe attenuated expression of genes that affect functions of transferases, kinases, transmembrane transporters, transcription factors, diester hydrolases and RNA polymerase III; processes of protein phosphorylation, responses to stimuli, hormones and chemicals, carbohydrate transport, RNA polymerase III transcription, and cellular anion homeostasis; plus, components of the plasma membrane. MapMan analysis also identified RNA regulation of transcription, protein degradation, and lipid metabolism pathways that were enriched with DECe down-regulated transcripts. Divergent DECe treatment effects were associated with significantly elevated needle uptake of cerium. DE affected expression of more genes than DECe. Nevertheless, unique transcriptome profile changes suggest that chronic DECe exposure may adversely affect plant growth and development.

This dataset is associated with the following publication: Reichman, J.R., P.T. Rygiewicz, M.G. Johnson, M.A. Bollman, B.M. Smith, Q.T. Krantz, C.J. King, K. Kovalcik, and C.P. Andersen. Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) Transcriptome Profile Changes Induced by Diesel Emissions Generated with CeO2 Nanoparticle Fuel Borne Catalyst. ENVIRONMENTAL SCIENCE & TECHNOLOGY. American Chemical Society, Washington, DC, USA, 52(17): 10067-10077, (2018).

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Metadata Created Date November 12, 2020
Metadata Updated Date November 12, 2020

Metadata Source

Harvested from EPA ScienceHub

Additional Metadata

Resource Type Dataset
Metadata Created Date November 12, 2020
Metadata Updated Date November 12, 2020
Publisher U.S. EPA Office of Research and Development (ORD)
Data Last Modified 2017-12-12
Public Access Level public
Bureau Code 020:00
Schema Version
Harvest Object Id c2cc1df7-a3c7-4872-b988-1287040aeef7
Harvest Source Id 04b59eaf-ae53-4066-93db-80f2ed0df446
Harvest Source Title EPA ScienceHub
Program Code 020:095
Publisher Hierarchy U.S. Government > U.S. Environmental Protection Agency > U.S. EPA Office of Research and Development (ORD)
Related Documents
Source Datajson Identifier True
Source Hash ccb9ceac4c0f4dfe5558f3a521eb5303cd91901b
Source Schema Version 1.1

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