Nanoparticle titanium dioxide affects the growth and microRNA expression of switchgrass (Panicum virgatum)

Boykov, Ilya; Shuford, Elijah; Zhang, Baohong

doi:10.1016/j.ygeno.2018.03.002

Cited by 48 publications

(15 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…However, Wu et al ( 2017 ) found in their experiment with Oryza sativa L. a decrease in the biomass of the roots and leaves of plants exposed to concentrations of TiO 2 -ENPs of 100, 250, or 500 mg L −1 , and also an increase was observed in antioxidant activity in response to stress produced by ENPs. Similarly, Boykov et al ( 2014 ) reported that as TiO 2 -ENPs concentration increased, biomass production decreased while TiO 2 -ENPs negatively affected microRNA expressions.…”

Section: Resultsmentioning

confidence: 87%

Ecological Drawbacks of Nanomaterials Produced on an Industrial Scale: Collateral Effect on Human and Environmental Health

Pérez‐Hernández

Pérez-Moreno

Sarabia-Castillo

et al. 2021

Water Air Soil Pollut

View full text Add to dashboard Cite

Graphical abstract Currently, hundreds of different nanomaterials with a broad application in products that make daily lives a little bit easier, in every aspect, are being produced on an industrial scale at thousands of tons per year. However, several scientists, researchers, politics, and ordinary citizens have stated their concern regarding the life cycle, collateral effects, and final disposal of these cutting-edge materials. This review summarizes, describes, and discusses all manuscripts published in the Journal Citation Reports during the last 10 years, which studied the toxicity or the effects of nanomaterials on human and environmental health. It was observed that 23.62% of the manuscripts analyzed found no ecological or human risks; 54.39% showed that several nanomaterials have toxicological effects on the ecosystems, human, or environmental health. In comparison, only 21.97% stated the nanomaterials had a beneficial impact on those. Although only 54.39% of the manuscripts reported unfavorable effects of nanomaterials on ecosystems, human, or environmental health, it is relevant because the potential damage is invaluable. Therefore, it is imperative to make toxicological studies of nanomaterials with holistic focus under strictly controlled real conditions before their commercialization, to deliver to the market only innocuous and environmentally friendly products.

show abstract

Section: Resultsmentioning

confidence: 87%

Ecological Drawbacks of Nanomaterials Produced on an Industrial Scale: Collateral Effect on Human and Environmental Health

Pérez‐Hernández

Pérez-Moreno

Sarabia-Castillo

et al. 2021

Water Air Soil Pollut

View full text Add to dashboard Cite

show abstract

“…As an example, an abscisic acid-dependent pathway is reported for plants subjected to gradual water stress by withholding irrigation in which, miR169 transcripts are down-regulated during the stress 60 . Furthermore, it has been recently shown that among the plant miRNAs, miRNA-169 is the only miRNA that is inhibited by titanium dioxide nanoparticles with a dose-dependent pattern 61 . During the last two decades, titanium dioxide has become a potentially dangerous contaminant to the environment which undesirably affects the plant growth and development 62 .…”

Section: Resultsmentioning

confidence: 99%

Machine learning improves our knowledge about miRNA functions towards plant abiotic stresses

Vakilian

2020

Sci Rep

View full text Add to dashboard Cite

During the last two decades, human has increased his knowledge about the role of miRNAs and their target genes in plant stress response. Biotic and abiotic stresses result in simultaneous tissue-specific up/down-regulation of several miRNAs. In this study, for the first time, feature selection algorithms have been used to investigate the contribution of individual plant miRnAs in Arabidopsis thaliana response towards different levels of several abiotic stresses including drought, salinity, cold, and heat. Results of information theory-based feature selection revealed that miRNA-169, miRNA-159, miRNA-396, and miRNA-393 had the highest contributions to plant response towards drought, salinity, cold, and heat, respectively. Furthermore, regression models, i.e., decision tree (DT), support vector machines (SVMs), and Naïve Bayes (NB) were used to predict the plant stress by having the plant miRNAs' concentration. SVM with Gaussian kernel was capable of predicting plant stress (R 2 = 0.96) considering miRnA concentrations as input features. findings of this study prove the performance of machine learning as a promising tool to investigate some aspects of miRnAs' contribution to plant stress responses that have been undiscovered until today. microRNAs (miRNAs) are small single-stranded RNAs with low protein-coding potential 1. Although plant miR-NAs target only a small number of mRNAs (<1%) 2 , the role of miRNA-controlled gene regulation in plants cannot be neglected because most of the target mRNAs participate in most plant developmental processes 3,4. Furthermore, there are evidences showing the relationships between plant stress responses and changes in miR-NAs' expression 5,6. miRNAs are known as negative post-transcription regulators since they exert specific binding to their target mRNAs or repressing target mRNA translation 7-9. Among the major plant abiotic stress sources, drought, salinity, cold, heat, ultraviolet irradiation, carbon dioxide, and heavy metal pollution have significant effects on plant morphological, physiological, and biochemical characteristics 10,11. To adapt and survive under stress conditions, plants exert miRNA up/down-regulation which results in gene expression reprogramming to restore cellular homeostasis 12,13. Plant miRNA expression towards stress is generally spatial (plant tissue) and temporal (developmental/growth stage) specific 4,14. With the identification of stress-responsive miRNAs, useful information on their role in improving the stress tolerance mechanism of plants can be obtained. A search in bibliographic resources reveals that hundreds of research studies have been dedicated to the changes in plant miRNA expression in response to biotic and abiotic stresses. A large part of these studies has focused on Arabidopsis thaliana, Brachypodium distachyon, Glycine max, Hordeum vulgare, Medicago truncatula, Manihot esculenta, Phaseolus vulgaris, Populus euphratica, Populus trichocarpa, Populus tremula, Triticum turgidum, Oryza sativa, Vigna unguiculate, and Zea mays 15. Studies ...

show abstract

“…The same situation is relevant in plant responses to metal NPs. In switchgrass seedlings treated with 0.1-1% TiO 2 NPs, the expression of miR156 and miR159 increased [78]. Yu et al (2019) [79] indicated that miR156 and miR159 in wild barley seedlings might be related to Cd tolerance.…”

Section: Effect Of Fe 3 O 4 Nanoparticles On Barley Mirna Expressionmentioning

confidence: 96%

Genotoxic Evaluation of Fe3O4 Nanoparticles in Different Three Barley (Hordeum vulgare L.) Genotypes to Explore the Stress-Resistant Molecules

et al. 2021

View full text Add to dashboard Cite

Sustainable agricultural practices are still essential due to soil degradation and crop losses. Recently, the relationship between plants and nanoparticles (NPs) attracted scientists’ attention, especially for applications in agricultural production as nanonutrition. Therefore, the present research was carried out to investigate the effect of Fe3O4 NPs at low concentrations (0, 1, 10, and 20 mg/L) on three genotypes of barley (Hordeum vulgare L.) seedlings grown in hydroponic conditions. Significant increases in seedling growth, enhanced chlorophyll quality and quantity, and two miRNA expression levels were observed. Additionally, increased genotoxicity was observed in seedlings grown with NPs. Generally, Fe3O4 NPs at low concentrations could be successfully used as nanonutrition for increasing barley photosynthetic efficiency with consequently enhanced yield. These results are important for a better understanding of the potential impact of Fe3O4 NPs at low concentrations in agricultural crops and the potential of these NPs as nanonutrition for barley growth and yield enhancement. Future studies are needed to investigate the effect of these NPs on the expression of resistance-related genes and chlorophyll synthesis-related gene expression in treated barley seedlings.

show abstract

Nanoparticle titanium dioxide affects the growth and microRNA expression of switchgrass (Panicum virgatum)

Cited by 48 publications

References 33 publications

Ecological Drawbacks of Nanomaterials Produced on an Industrial Scale: Collateral Effect on Human and Environmental Health

Ecological Drawbacks of Nanomaterials Produced on an Industrial Scale: Collateral Effect on Human and Environmental Health

Machine learning improves our knowledge about miRNA functions towards plant abiotic stresses

Genotoxic Evaluation of Fe3O4 Nanoparticles in Different Three Barley (Hordeum vulgare L.) Genotypes to Explore the Stress-Resistant Molecules

Contact Info

Product

Resources

About