A comparative study of phytotoxic effects of metal oxide (CuO, ZnO and NiO) nanoparticles on <i>in-vitro</i> grown <i>Abelmoschus esculentus</i>

Venkidasamy, Baskar; Nayeem, Safia; Preethy, Kuppuraj Sree; Thangaraj, Parimelazhagan; Thiruvengadam, Muthu; Ramalingam, Sathishkumar

doi:10.1080/11263504.2020.1753843

Cited by 35 publications

(16 citation statements)

References 50 publications

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“…Several biotic and abiotic elicitors acting as stress agents can affect the growth of in vitro cultures. Both stimulatory and inhibitory effects of the addition of different metal oxide (e.g., CuO, ZnO and NiO) NPs to the culture medium on shoot growth have been reported [24][25][26]. As frequently reported, in this work the effect of the addition of NPs to the culture medium depended on the type of NP tested and the plant species.…”

Section: Biometric and Physiological Featuressupporting

confidence: 74%

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Impact of Metallic Nanoparticles on In Vitro Culture, Phenolic Profile and Biological Activity of Two Mediterranean Lamiaceae Species: Lavandula viridis L’Hér and Thymus lotocephalus G. López and R. Morales

et al. 2021

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Nanoparticles (NPs) recently emerged as new chemical elicitors acting as signaling agents affecting several processes in plant metabolism. The aim of this work was to investigate the impact of the addition of copper oxide (CuO), zinc oxide (ZnO) and iron oxide (Fe3O4) NPs (<100 nm) at different concentrations (1, 5 and 10 mg/L) to the culture media on several morphological, physiological and -biochemical parameters of in vitro shoot cultures of Lavandula viridis L’Hér and Thymus lotocephalus G. López and R. Morales (Lamiaceae), as well as on phenolic profile and bioactivity (antioxidant and enzyme inhibition capacities). Although some decreases in shoot number and length were observed in response to NPs, biomass production was not affected or was improved in both species. Most NPs treatments decreased total chlorophyll and carotenoid contents and increased malondialdehyde levels, an indicator of lipid peroxidation, in both species. HPLC-HR-MS analysis led to the identification of thirteen and twelve phenolic compounds, respectively, in L. viridis and T. lotocephalus extracts, being rosmarinic acid the major compound found in all the extracts. ZnO and Fe3O4 NPs induced an increase in total phenolic and rosmarinic acid contents in T. lotocephalus extracts. Additionally, some NPs treatments also increased antioxidant activity in extracts from this species and the opposite was observed for L. viridis. The capacity of the extracts to inhibit tyrosinase, acetylcholinesterase and butyrylcholinesterase enzymes was not considerably affected. Overall, NPs had a significant impact on different parameters of L. viridis and T. lotocephalus in vitro shoot cultures, although the results varied with the species and NPs type.

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Section: Biometric and Physiological Featuressupporting

confidence: 74%

“…ZnO NPs reduced the growth of Solanum melongena seedlings [27]. High concentrations of CuO and ZnO NPs also reduced shoot and root growth of in vitro grown seedlings of Abelmoschus esculentus (okra) [24]. High concentrations of CuO NPs reduced shoot and root growth in Oryza sativa plants [28].…”

Section: Biometric and Physiological Featuresmentioning

confidence: 99%

Impact of Metallic Nanoparticles on In Vitro Culture, Phenolic Profile and Biological Activity of Two Mediterranean Lamiaceae Species: Lavandula viridis L’Hér and Thymus lotocephalus G. López and R. Morales

et al. 2021

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“…27,28 Similar results were reported for Abelmoschus esculentus seedlings treated with CuO NPs at 100-1000 mg L −1 , in which an increase in the phenolic compound levels was reported. 48 In addition, our results demonstrated that the NO donor increased the levels of flavonoids. NO is known to have opposing physiological effects, acting as an antioxidant or pro-oxidant agent, mainly depending on its concentration.…”

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confidence: 50%

Foliar spray application of CuO nanoparticles (NPs) and S‐nitrosoglutathione enhances productivity, physiological and biochemical parameters of lettuce plants

Pelegrino

Pieretti

Lange

et al. 2021

J of Chemical Tech & Biotech

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BACKGROUND: Green-tea-synthesized copper oxide nanoparticles (CuO NPs) and S-nitrosoglutathione (GSNO), a nitric oxide (NO) donor, were applied individually and in combination to lettuce leaves. We aimed to investigate whether a combined application of CuO NPs and GSNO might enhance plant growth when compared to individual treatments and the control group. RESULTS: Spherical CuO NPs (13.4 ± 0.1 nm) at 50 ∼g mL −1 and/or GSNO at 100 ∼mol L −1 were individually and simultaneously sprayed onto lettuces leaves. All treatments had a positive effect on plant growth, and the administration of CuO NPs + GSNO promoted a threefold increase in lettuce dry weight. The treatments did not change plant transpiration, and all treatments enhanced instantaneous carboxylation efficiency compared to control. In the roots, all treatments enhanced the levels of S-nitrosothiol in the following order: CuO NPs < GSNO < CuO NPs + GSNO. Administration of GSNO significantly increased total phenolic content (twofold) and flavonoid content (fourfold) compared to the control group. All treatments increased the leaf levels of K, Na, Ca, Mg and S compared to the control group. CONCLUSION: All treatments promoted positive effects on lettuce growth, and no oxidative damage was observed, under the experimental conditions evaluated. A combined administration of CuO NPs and GSNO enhanced important physiological, biochemical and nutritional parameters of lettuces.

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“…Toxicological concerns exist also for copper and copper oxide nanoparticles as studies indicate a strong relation between decreasing nanoparticles size and increasing phytotoxicity [ 271 , 272 , 273 ]. Some recent studies also indicate effects on plastids, mitochondria, protoplasm, and membranes for Hordeum sativum distichum [ 274 ] or Abelmoschus esculentus [ 275 ].…”

Section: Toxicity Studiesmentioning

confidence: 99%

Biodegradable Antimicrobial Food Packaging: Trends and Perspectives

Motelică

Ficai

et al. 2020

Foods

247

134

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This review presents a perspective on the research trends and solutions from recent years in the domain of antimicrobial packaging materials. The antibacterial, antifungal, and antioxidant activities can be induced by the main polymer used for packaging or by addition of various components from natural agents (bacteriocins, essential oils, natural extracts, etc.) to synthetic agents, both organic and inorganic (Ag, ZnO, TiO2 nanoparticles, synthetic antibiotics etc.). The general trend for the packaging evolution is from the inert and polluting plastic waste to the antimicrobial active, biodegradable or edible, biopolymer film packaging. Like in many domains this transition is an evolution rather than a revolution, and changes are coming in small steps. Changing the public perception and industry focus on the antimicrobial packaging solutions will enhance the shelf life and provide healthier food, thus diminishing the waste of agricultural resources, but will also reduce the plastic pollution generated by humankind as most new polymers used for packaging are from renewable sources and are biodegradable. Polysaccharides (like chitosan, cellulose and derivatives, starch etc.), lipids and proteins (from vegetal or animal origin), and some other specific biopolymers (like polylactic acid or polyvinyl alcohol) have been used as single component or in blends to obtain antimicrobial packaging materials. Where the package’s antimicrobial and antioxidant activities need a larger spectrum or a boost, certain active substances are embedded, encapsulated, coated, grafted into or onto the polymeric film. This review tries to cover the latest updates on the antimicrobial packaging, edible or not, using as support traditional and new polymers, with emphasis on natural compounds.

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A comparative study of phytotoxic effects of metal oxide (CuO, ZnO and NiO) nanoparticles on in-vitro grown Abelmoschus esculentus

Cited by 35 publications

References 50 publications

Impact of Metallic Nanoparticles on In Vitro Culture, Phenolic Profile and Biological Activity of Two Mediterranean Lamiaceae Species: Lavandula viridis L’Hér and Thymus lotocephalus G. López and R. Morales

Impact of Metallic Nanoparticles on In Vitro Culture, Phenolic Profile and Biological Activity of Two Mediterranean Lamiaceae Species: Lavandula viridis L’Hér and Thymus lotocephalus G. López and R. Morales

Foliar spray application of CuO nanoparticles (NPs) and S‐nitrosoglutathione enhances productivity, physiological and biochemical parameters of lettuce plants

Biodegradable Antimicrobial Food Packaging: Trends and Perspectives

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