Synthesis and characterisation of metal nanoparticles and their effects on seed germination and seedling growth in commercially important<i>Eruca sativa</i>

Zaka, Mehreen; Abbasi, Bilal Haider; Rahman, Latifur; Shah, A. H.; Zia, Muhammad

doi:10.1049/iet-nbt.2015.0039

Cited by 64 publications

(38 citation statements)

References 29 publications

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“…So we can conclude that CuNPs are responsible for inducing more stress as compared to AgNPs and AuNPs. Our observations are in line with Zaka et al (2016) who reported similar findings in an attempt to check the effect of MNPs for TPC and TFC in Eruca sativa.…”

Section: Total Phenolic Content (Tpc) and Total Flavonoid Content (Tfc)supporting

confidence: 93%

In vitro seed germination and biochemical profiling of Artemisia absinthium exposed to various metallic nanoparticles

et al. 2017

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In the recent years, nanotechnology has attained much attention in the every field of science. The synthesis, characterisation and applications of metallic nanoparticles (MNPs) have become an important branch of nanotechnology. In the current study, MNPs were synthesised through polyols process and applied in vitro to study their effect on medicinally important plant : Artemisia absinthium. The current study strives to check the effect of MNPs, i.e., Ag, Cu and Au on seed germination, root and shoot length, seedling vigour index (SVI) and biochemical profiling in A. absinthium. The seeds were inoculated on MS medium supplemented with various combinations of MNPs suspension. The seed germination was greatly influenced upon the application of MNPs and was recorded highest for the silver nanoparticles (AgNPs) suspensions. The best result for seed germination (98.6%) was obtained in MS medium supplemented with AgNPs as compared to control (92.9%) and other nanoparticles, i.e., copper (69.6%) and gold (56.5%), respectively, after 35 days of inoculation. Significant results were obtained for root length, shoot length and SVI in response to application of AgNPs as compared to copper nanoparticles (CuNPs) and gold nanoparticles (AuNPs). These nanoparticles (NPs) could induce stress in plants by deploying the endogenous mechanism. In response to these stresses, plants produce various defence compounds. Total phenolic content (TPC) and total flavonoid content (TFC) were significant in the MS medium supplemented with AgNPs as compared to other NPs, while DPPH radical scavenging assay (RSA) was highest in AuNPs treated plantlets. The MNPs showed higher toxicity level and enhanced secondary metabolites production, total phenolic content, total flavonoid content, antioxidant activity, superoxide dismutase (SOD) activity and total protein content.

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Section: Total Phenolic Content (Tpc) and Total Flavonoid Content (Tfc)supporting

confidence: 93%

In vitro seed germination and biochemical profiling of Artemisia absinthium exposed to various metallic nanoparticles

et al. 2017

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“…The TAC was found to be highest (4.66 mg GAE/g FW) at higher concentration of NPs (160ppm). The results were supported by Zaka et al 43 study where they have reported that the TAC was found to be 7µg Ascorbic acid/mg FW and DPPH 12% on Eurica sativa when exposed to Cu2O NPs.…”

Section: Effect On Antioxidant Propertiessupporting

confidence: 73%

Nano-cuprous oxide enhances seed germination and seedling growth in Lycopersicum esculentum plants

Ananda¹,

Shobha²,

Ks³

et al. 2019

J. Drug Delivery Ther.

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This study was carried out to determine the influence of cuprous oxide nanoparticles (Cu2O NPs) biosynthesised from leaf extracts of Flacourtia montana on the tomato Lycioersicum esculentum seed germination, seedling growth and vigour index. Here we examined the promotory and phytotoxic effect of Cu2O NPs (0-160ppm) on tomato seeds resulted in dosage dependent response. The highest germination percentage (95%) was observed at 20ppm Cu2O NPs, however, above 20ppm Cu2O NPs, there is a reduction in the seed germination. The tomato seedlings showed increased root and shoot elongation up to 20ppm Cu2O NPs concentration, further increase in NPs concentration caused the negative effect on plants growth and development. The leaf pigments showed increasing trend in tomato plants after treatment with Cu2O NPs up to 20ppm as compared to control. Phytotoxicity of Cu2O NPs in tomato seedlings demonstrated by lower contents of chlorophyll a, b and carotenoid pigments. The study of effect on antioxidant enzymes showed increases in activity with increase in Cu2O NPs concentration for two enzymes, Super oxide dismutase (SOD) and Glutathione Peroxidase (GPX) out of five enzymes treated. High antioxidant activity of enzymes is followed by the increased lipid peroxidation and decrease in free radical scavenging activity by the DPPH. The activity of Catalase, Pheny Alanine Aminolyase and Poly Phenol Oxidase enzymes were found to increase up to 20ppm as compared to control and above this, all three enzymes showed decrease in activity. Uptake of Cu2O NPs nanoparticle by tomato seedlings was confirmed by atomic absorption spectroscopy. Key words: Nano-Cuprous Oxide, Flacourtia montana, Tomato, antioxidant enzymes, lipid peroxidation

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“…Zinc oxide (ZnO) NPs as an inorganic micronutrient have a beneficial effect on plant growth, cell division, and structure and function of membrane because of their high electron mobility, large surface area, and catalytic activity . Most of the recent studies are focused on the effects of NPs on seed germination , plant growth rate physiological responses , and secondary metabolites production . Recent studies have shown that plant growth, development, and physiology are significantly affected by NPs; however, their role on plant secondary metabolism, especially regarding callus culture, is still obscure .…”

Section: Introductionmentioning

confidence: 99%

Modulation of callus growth and secondary metabolites in different Thymus species and Zataria multiflora micropropagated under ZnO nanoparticles stress

Mosavat

Golkar

Yousefifard

et al. 2019

Biotech and App Biochem

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Thymus species are aromatic plants with diverse applications in food industries and medicine. This study was conducted to evaluate the potential effect of ZnO nanoparticles (NPs) on callus proliferation and thymol and carvacrol production in three Thymus species, that is, T. vulgaris, T. daenensis, and T. kotschyanus, and Zataria multiflora. For this purpose, callus induction was performed on Murashige and Skoog (MS) medium containing different plant growth regulators (PGRs). After optimization of callus growth, the effects of different concentrations of ZnO NPs (100 and 150 mg L −1 ) were investigated. MS containing 2 mg L −1 of 2, 4-dichlorophenoxy acetic acid (2,4-D) and 1 mg L −1 of kinetin (Kin) revealed significantly highest fresh weight (0.18 g) of callus in T.kotschyanus. Callus growth rate (0.079 mm day −1 ) was found highest in T. vulgaris under similar conditions. Moreover, highest callus induction (92.50%) was achieved by T. kotschyanus in MS containing 2.5 mg L −1 of 2,4-D. Regarding the highest content of thymol (22.8 mg L −1 ) and carvacrol (0.68 mg L −1 ) evaluated by high-performance liquid chromatography, best results were achieved under 150 mg L −1 of ZnO NPs in T. kotschyanus and T. daenesis, respectively. This is simple and cost-effective method to be applied on industrial level for production of enhanced secondary metabolites content. potent chemical elicitors as signaling agents that effect a great diversity of physiological and biochemical processes in plant metabolism and plant secondary metabolites production [1,2]. NPs are capable of increasing cell membrane permeability, stimulating defensive mechanisms in plant cells, and subsequent increase in secondary metabolites content [2,3]. Zinc oxide (ZnO) NPs as an inorganic micronutrient have a beneficial effect on plant growth, cell division, and structure and function of membrane because of their high electron mobility, large surface area, and catalytic activity [4]. Most of the recent studies are focused on the effects of NPs on seed germination [5], plant growth rate [6] physiological responses [3][4][5][6], and secondary metabolites production [2][3][4][5]. Recent studies have shown that plant growth, development, and physiology are significantly affected by NPs; however, their role on plant secondary metabolism, especially regarding callus culture, is still obscure [2]. The inclusion of NPs to tissue culture media could enhance

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Synthesis and characterisation of metal nanoparticles and their effects on seed germination and seedling growth in commercially importantEruca sativa

Cited by 64 publications

References 29 publications

In vitro seed germination and biochemical profiling of Artemisia absinthium exposed to various metallic nanoparticles

In vitro seed germination and biochemical profiling of Artemisia absinthium exposed to various metallic nanoparticles

Nano-cuprous oxide enhances seed germination and seedling growth in Lycopersicum esculentum plants

Modulation of callus growth and secondary metabolites in different Thymus species and Zataria multiflora micropropagated under ZnO nanoparticles stress

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