Potential toxicity of nano-graphene oxide on callus cell of Plantago major L. under polyethylene glycol-induced dehydration

Ghorbanpour, Mansour; Farahani, Amir Hossein Khaltabadi; Hadian, Javad

doi:10.1016/j.ecoenv.2017.11.061

Cited by 42 publications

(15 citation statements)

References 83 publications

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“…In Arabidopsis plants under stress conditions, GO decreased the activities of both SOD and CAT, which suggested the toxicity of GO in Arabidopsis plants under different environmental conditions . However, the application of NGO significantly upregulated the activities of SOD and POD in Plantago major under polyethylene glycol-induced drought stress, which was consistent with our results, indicating that GO could reduce the accumulation of ROS. , …”

Section: Resultssupporting

confidence: 90%

Graphene Oxide as an Effective Soil Water Retention Agent Can Confer Drought Stress Tolerance to Paeonia ostii without Toxicity

Zhao

Fang

Tang

et al. 2020

Environ. Sci. Technol.

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Graphene oxide (GO) is considered to be an emerging environmental pollutant with its inevitable release into the environment. Thus, its potential environmental risks and biosafety are receiving increased attention. In this study, Paeonia ostii was exposed to GO under drought stress. The results demonstrated that GO prevented soil water from evaporating due to its hydrophilic oxygen-containing functional groups and did not change the soil pH. Moreover, GO treatment resulted in lower increases in reactive oxygen species, relative electrical conductivity and free proline content, and greater increases in the antioxidant enzyme activities of P. ostii under drought stress compared with those in the control. And under drought stress, higher photosynthesis, more intact mesophyll cells and organelles and open stomata were found in P. ostii under GO treatment. Furthermore, GO treatment induced greater changes in the expression patterns of genes required for lignin biosynthesis, photosynthesis-antenna proteins, carbon fixation in photosynthetic organisms, and glyoxylate and dicarboxylate metabolism. Additionally, GO did not accumulate in P. ostii due to the soil environment and the electrostatic repulsion between GO and the roots. GO did not have toxic effects on P. ostii and was an effective soil water retention agent; therefore, it could be economically beneficial for the production of plants under drought stress.

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Section: Resultssupporting

confidence: 90%

Graphene Oxide as an Effective Soil Water Retention Agent Can Confer Drought Stress Tolerance to Paeonia ostii without Toxicity

Zhao

Fang

Tang

et al. 2020

Environ. Sci. Technol.

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“…Plantago major leaf-derived calli cultures grown on a 1/2 MS medium, which were exposed to drought stress and treated with 800 μg/mL GO, were characterized with reduced relative growth rate (78.5%), osmotic potential (48.2%), and increases in dry biomass matter (35.1%) and H 2 O 2 (54.2%) levels, compared with control. A dose of 800 μg/mL GO increased also total phenolic content (40.9%) and total flavonoid content (35.3%) as well as remarkably diminished proline content (26.9%) at water deficit as well as under normal water availability conditions, when compared with respective controls [ 217 ]. Treatment of Brassica napus plants with 25 mg/L GO inhibited root development and generated oxidative stress, whereby its inhibitory effect increased with co-application of indole-3-acetic acid (IAA) (>0.5 mg/L).…”

Section: Effects Of Gbns On Plantsmentioning

confidence: 99%

Advances in Biologically Applicable Graphene-Based 2D Nanomaterials

Jampílek

Kráľová

2022

IJMS

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Climate change and increasing contamination of the environment, due to anthropogenic activities, are accompanied with a growing negative impact on human life. Nowadays, humanity is threatened by the increasing incidence of difficult-to-treat cancer and various infectious diseases caused by resistant pathogens, but, on the other hand, ensuring sufficient safe food for balanced human nutrition is threatened by a growing infestation of agriculturally important plants, by various pathogens or by the deteriorating condition of agricultural land. One way to deal with all these undesirable facts is to try to develop technologies and sophisticated materials that could help overcome these negative effects/gloomy prospects. One possibility is to try to use nanotechnology and, within this broad field, to focus also on the study of two-dimensional carbon-based nanomaterials, which have excellent prospects to be used in various economic sectors. In this brief up-to-date overview, attention is paid to recent applications of graphene-based nanomaterials, i.e., graphene, graphene quantum dots, graphene oxide, graphene oxide quantum dots, and reduced graphene oxide. These materials and their various modifications and combinations with other compounds are discussed, regarding their biomedical and agro-ecological applications, i.e., as materials investigated for their antineoplastic and anti-invasive effects, for their effects against various plant pathogens, and as carriers of bioactive agents (drugs, pesticides, fertilizers) as well as materials suitable to be used in theranostics. The negative effects of graphene-based nanomaterials on living organisms, including their mode of action, are analyzed as well.

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“…Silver nanoparticles (AgNPs), an important product in the field of nanotechnology, are one of the most widely used nanoparticles in the biomedical field [49]. Owing to their unique chemical stability, good electrical conductivity and catalytic properties, and particularly outstanding antimicrobial properties [50], AgNPs have been used in a large number of applications including biomolecular detection, drug delivery, food production, antimicrobial, and agricultural fields [51]. In particular, AgNPs have become one of the most promising materials for fighting the threat of drug-resistant bacteria due to their excellent antimicrobial properties [52].…”

Section: Synthesis Of Silver Nanoparticlesmentioning

confidence: 99%

Plant-Extract-Mediated Synthesis of Metal Nanoparticles

Bao

Song

et al. 2021

Journal of Chemistry

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Metal nanoparticles (MNPs) have been widely used in several fields including catalysis, bioengineering, photoelectricity, antibacterial, anticancer, and medical imaging due to their unique physical and chemical properties. In the traditional synthesis method of MNPs, toxic chemicals are generally used as reducing agents and stabilizing agents, which is fussy to operate and extremely environment unfriendly. Based on this, the development of an environment-friendly synthesis method of MNPs has recently attracted great attention. The use of plant extracts as reductants and stabilizers to synthesize MNPs has the advantages of low cost, environmental friendliness, sustainability, and ease of operation. Besides, the as-synthesized MNPs are nontoxic, more stable, and more uniform in size than the counterparts prepared by the traditional method. Thus, green preparation methods have become a research hotspot in the field of MNPs synthesis. In this review, recent advances in green synthesis of MNPs using plant extracts as reductants and stabilizers have been systematically summarized. In addition, the insights into the potential applications and future development for MNPs prepared by using plant extracts have been provided.

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Potential toxicity of nano-graphene oxide on callus cell of Plantago major L. under polyethylene glycol-induced dehydration

Cited by 42 publications

References 83 publications

Graphene Oxide as an Effective Soil Water Retention Agent Can Confer Drought Stress Tolerance to Paeonia ostii without Toxicity

Graphene Oxide as an Effective Soil Water Retention Agent Can Confer Drought Stress Tolerance to Paeonia ostii without Toxicity

Advances in Biologically Applicable Graphene-Based 2D Nanomaterials

Plant-Extract-Mediated Synthesis of Metal Nanoparticles

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