Effects of Fe3O4 Nanoparticle Stress on the Growth and Development of Rocket Eruca sativa

Plants exposed to stress use the variety of gene regulatory mechanisms to achieve cellular homeostasis, including posttranscriptional regulation of gene expression where microRNAs (miRNAs) play a pivotal role. Since various environmental stress factors such as nanoparticles affect crop productivity...

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Bibliographic Details
Published in:Journal of nanomaterials 2019-01, Vol.2019 (2019), p.1-10
Main Authors: Kokina, Inese, Sledevskis, Eriks, Gerbreders, Vjaceslavs, Gavarāne, Inese, Bankovska, Linda, Jermaļonoka, Marija, Mickeviča, Ilona, Sniķeris, Jānis
Format: Article
Language:English
Subjects:
Chlorophyll
Copper
Elongation
Experiments
Flowers & plants
Gene expression
Genotoxicity
Germination
Homeostasis
Humidity
Hydroponics
Iron oxides
Lasers
Levels
MicroRNAs
Microscopy
Morphology
Nanomaterials
Nanoparticles
Phytotoxicity
Plant growth
Regulatory mechanisms (biology)
Ribonucleic acid
RNA
Seeds
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Summary:Plants exposed to stress use the variety of gene regulatory mechanisms to achieve cellular homeostasis, including posttranscriptional regulation of gene expression where microRNAs (miRNAs) play a pivotal role. Since various environmental stress factors such as nanoparticles affect crop productivity and quality, the aim of the present study was to evaluate the genotoxicity level and to estimate miRNA expression level and chlorophyll a level in the magnetite (Fe3O4) nanoparticle-stressed rocket (Eruca sativa Mill.) seedlings grown in hydroponics. Rocket seedlings were exposed to 1 mg/L, 2 mg/L, and 4 mg/L Fe3O4 nanoparticles, and after 5 weeks, seed germination rate, root-shoot elongation, genotoxicity, chlorophyll a, and miRNA expression levels were evaluated. The obtained results indicated that 1 mg/L, 2 mg/L, and 4 mg/L concentrations of Fe3O4 nanoparticles induce low genotoxicity and have a positive effect on the growth and development of rocket seedlings and that nanoparticles may improve the ability of plants to stand against environmental stresses.
ISSN:1687-4110
1687-4129
DOI:10.1155/2019/2678247