Impact of Zinc Oxide Nanoparticles on Pomegranate Growth under In Vitro Conditions

El-Mahdy, Marwa T.; Elazab, Doaa S.

doi:10.1134/s1021443720010045

Cited by 20 publications

(8 citation statements)

References 25 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: 73%

“…In the case of CuO NPs, this negative effect was strongly accentuated with the increase of NPs concentration (Table 1). El-Mahdy and Elazab [25] reported that the effect of ZnO NPs on photosynthetic pigments contents of shoots of two pomegranate cultivars strongly depended on NPs concentration. NPs significantly increased photosynthetic pigments contents at 1 and 2.5 mg/L, but reduced those contents at 7 and 10 mg/L.…”

Section: Biometric and Physiological Featuresmentioning

confidence: 99%

“…Chang et al [39] reported that CuO-NPs can cause genotoxicity in plant tissues if the Cu amounts exceed the physiological tolerance range because Cu is indispensable to maintain homeostasis in living systems. Additionally, Zn is another essential microelement for plant growth and development, it stimulates protein synthesis and chlorophyll biosynthesis, and plays an important role in regulatory and physiological processes [25]. However, at high concentrations, Zn can induce lipid peroxidation as well as the production of H 2 O 2 leading to the reduction of photosynthetic pigments biosynthesis [40].…”

Section: Biometric and Physiological Featuresmentioning

confidence: 99%

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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: 73%

Section: Biometric and Physiological Featuresmentioning

confidence: 99%

Section: Biometric and Physiological Featuresmentioning

confidence: 99%

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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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“…Zn participates in nucleic acid synthesis, carbohydrates, lipids metabolism and protein activities. The detected promotion in plant development properties in tissue culture due to the supplementation of ZnO NPs is in agreement with earlier reports (El-Mahdy andElazab, 2020, Hussain et al 2018). In the present study, intensity of protein bands in tested pea ecotypes were effectively obtained with dosage of 0.8 and 1.8 ppm ZnO, resulting in increased plant growth.…”

Section: Resultssupporting

confidence: 92%

In vitro ZnO Nanoparticles Enhanced Pea (Pisum sativum L.) Seedlings Growth

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et al. 2022

Türk Tarım Ve Doğa Bilimleri Dergisi

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Zinc is a minor micronutrient that is also involved in carbohydrate, protein synthesis metabolisms. The present study was carried out to analyze in response to DNSA, proline, protein and MDA (Malondialdehit) responses in the form of zinc oxide nanoparticles (ZnO NPs) in Pisum sativum, for a period of 21st and 35th days. Two P. sativum (Maro Tarım and Kars) were used as the material in the presence of 0.8 ppm and 1.8 ppm ZnO nanoparticulate. The length and biomass of plants increased significantly upon ZnO NPs application. The activation of shoot and root length in two tested ecotypes was remarkably increased by ZnO. Accumulation of Zn increases in presence of 0.8 ppm Zn+ nanoparticle in P. sativum, which lower concentration more affected than higher concentration in terms of growth parameters. The amount of protein showed an increase, while those of DNSA and proline response to ZnO NPs in the higher concentration. However, there were significant differences between control and ZnO treatments in response to DNSA and proline. Malondialdehyde content displayed a gradual increase in leaf samples of P. sativum plants. The results suggest that lower application of ZnO NPs (0.8 ppm) could be promoted to the development process of plants and can be stimulated as a Zn regulator factor for crop physiological mechanisms.

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“…In this response, Sturikova et al [9] reported that zinc is a member of the micronutrients group that has a nutritional value; it participates in protein binding, enzyme activity, and signal transduction in addition to acting as an enzyme cofactor. The medium supplemented with ZnO-NPs at doses of 6 and 18 mg/L increased the number of roots and shoots, the fresh and dry weights of olive plantlets [57], and also increased the shoot length and produced increased biomass in two pomegranates [58]. Furthermore, ZnO-NPs have greater solubility and improve the root's wheat uptake of excessive amounts of zinc [59] that diffuse in the extracellular spaces and increase the intracellular level of Zn 2+ [60].…”

Section: Discussionmentioning

confidence: 99%

Zinc Oxide Nanoparticles and Fe-Modified Activated Carbon Affecting the In Vitro Growth of Date Palm Plantlets cv. Medjool

et al. 2022

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The survival and growth of in vitro plantlets are still problematic for the date palm; thus, the application of nanotechnology may provide date palm plantlets that develop faster with enhanced growth and biochemical parameters. Moreover, the usage of Fe-modified activated carbon (Fe-AC) prepared from date palm pits instead of activated charcoal (AC) in tissue culture media during the current investigation can be considered an innovative approach. Furthermore, the effect of zinc oxide nanoparticles (ZnO-NPs) and bulk particles (ZnO-BPs) on the rooting and growth of date palm plantlets and on some physiological indices was also investigated. X-ray diffraction, dynamic light scattering, scanning electron microscopy, and transmission electron microscopy were used to characterize Fe-AC and ZnO-NPs. As detected from the characterization, the particle size was 720 nm for Fe-AC and 60 nm for ZnO-NPs. The obtained results indicated that AC significantly enhanced plantlet growth, plantlet height, number of leaves/plantlet, root length, number of roots/plantlet, and the concentrations of IAA, chlorophyll a and chlorophyll b compared with Fe-AC. On the other hand, sugars and phenols concentrations, and POD and PAL activities were highly increased with Fe-AC. There was no significant difference in terms of plant fresh weight (FW), leaf length, leaf width, protein, amino acids, and carotenoids. ZnO nanoparticles significantly improved plant height, leaf length, leaf width, root length, and the concentrations of IAA, chlorophylls a and b, and carotenoids; in contrast, the bulk form increased roots/plantlet, amino acids, and total sugars. Supplying the MS medium with combinations of ZnO-NPs or ZnO-BPs and AC or Fe-AC significantly increased all growth and physiological parameters. Plant height, leaf length, leaf width, root length, and the concentrations of IAA, protein, and chlorophylls a and b significantly increased when ZnO-NPs were combined with AC. Amino acids, total sugars, carotenoids, and phenols concentrations and the activities of POD and PAL increased when ZnO-BPs and Fe-AC were added together.

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Impact of Zinc Oxide Nanoparticles on Pomegranate Growth under In Vitro Conditions

Cited by 20 publications

References 25 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

In vitro ZnO Nanoparticles Enhanced Pea (Pisum sativum L.) Seedlings Growth

Zinc Oxide Nanoparticles and Fe-Modified Activated Carbon Affecting the In Vitro Growth of Date Palm Plantlets cv. Medjool

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