Silver nanoparticles improved the plant growth and reduced the sodium and chlorine accumulation in pearl millet: a life cycle study

Khan, İmran; Awan, Samrah Afzal; Raza, Muhammad Ali; Rizwan, Muhammad; Tariq, Rezwan; Ali, Shafaqat

doi:10.1007/s11356-020-11612-3

Cited by 57 publications

(28 citation statements)

References 59 publications

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“…Seed priming with AgNPs significantly affected photosynthetic parameters such as the chlorophyll and carotenoid content, photosynthetic rate, stomatal conductance, and transpiration rate in P. glaucum , increasing the plant length and yield [ 7 ]. An increase in the chlorophyll content in 7-day-old B. juncea was observed for the 25, 50, and 100 mg·L −1 AgNPs-treatments [ 34 ].…”

Section: Resultsmentioning

confidence: 99%

“…On the other hand, peroxidase, catalase, and superoxide dismutase activity were enhanced in the 500–4000 mg·L −1 AgNPs treatments in R. communis [ 15 ]. As for P. glaucum , silver nanoparticles improved superoxide dismutase and catalase activity but decreased peroxide activity [ 7 ]. In B. juncea , GPOX activity increased continuously with an increasing concentration of AgNPs, reaching the maximum at 400 mg·L −1 .…”

Section: Resultsmentioning

confidence: 99%

“…Silver nanoparticles are also used in agriculture as plant growth stimulators, fungicides, or agents to enhance fruit ripening [ 4 , 5 ]. AgNPs are assumed to modify the structural components of cellular membranes, macromolecules, influence cell division and defense systems, and interfere in the physiological and biochemical processes of plants by altering gene expression [ 7 ].…”

Section: Introductionmentioning

confidence: 99%

“…The content of chlorophyll as a major component of chloroplasts influences photosynthesis efficiency. However, stress conditions may decline the content of this pigment, which directly relates to a reduction in the photosynthetic rate and, consequently, in plant growth and development inhibition [ 7 ].…”

Section: Introductionmentioning

confidence: 99%

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Silver Nanoparticles Effects on In Vitro Germination, Growth, and Biochemical Activity of Tomato, Radish, and Kale Seedlings

Tymoszuk

2021

Materials

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The interactions between nanoparticles and plant cells are still not sufficiently understood, and studies related to this subject are of scientific and practical importance. Silver nanoparticles (AgNPs) are one of the most commonly produced and used nanomaterials. This study aimed to investigate the influence of AgNPs applied at the concentrations of 0, 50, and 100 mg·L−1 during the process of in vitro germination as well as the biometric and biochemical parameters of developed seedlings in three vegetable species: Solanum lycopersicum L. ‘Poranek’, Raphanus sativus L. var. sativus ‘Ramona’, and Brassica oleracea var. sabellica ‘Nero di Toscana’. The application of AgNPs did not affect the germination efficiency; however, diverse results were reported for the growth and biochemical activity of the seedlings, depending on the species tested and the AgNPs concentration. Tomato seedlings treated with nanoparticles, particularly at 100 mg·L−1, had shorter shoots with lower fresh and dry weights and produced roots with lower fresh weight. Simultaneously, at the biochemical level, a decrease in the content of chlorophylls and carotenoids and an increase in the anthocyanins content and guaiacol peroxidase (GPOX) activity were reported. AgNPs-treated radish plants had shorter shoots of higher fresh and dry weight and longer roots with lower fresh weight. Treatment with 50 mg·L−1 and 100 mg·L−1 resulted in the highest and lowest accumulation of chlorophylls and carotenoids in the leaves, respectively; however, seedlings treated with 100 mg·L−1 produced less anthocyanins and polyphenols and exhibited lower GPOX activity. In kale, AgNPs-derived seedlings had a lower content of chlorophylls, carotenoids, and anthocyanins but higher GPOX activity of and were characterized by higher fresh and dry shoot weights and higher heterogeneous biometric parameters of the roots. The results of these experiments may be of great significance for broadening the scope of knowledge on the influence of AgNPs on plant cells and the micropropagation of the vegetable species. Future studies should be aimed at testing lower or even higher concentrations of AgNPs and other NPs and to evaluate the genetic stability of NPs-treated vegetable crops and their yielding efficiency.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Silver Nanoparticles Effects on In Vitro Germination, Growth, and Biochemical Activity of Tomato, Radish, and Kale Seedlings

Tymoszuk

2021

Materials

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“…Br. ), as the sixth most crucial cereal crops after rice, wheat, maize, barley and sorghum (Sorghum bicolor (L.) Moench) in the world (Awan et al, 2020;Dan et al, 2020;Khan et al, 2020a;Khan et al, 2019a;Khan et al, 2020b;Khan et al, 2019b;Shivhare and Lata, 2016;Sun et al, 2020), is cultivated on ~27 million hectares worldwide as a staple food crop in arid and semi-arid regions of sub-Saharan Africa, India and South Asia where grain yields average 900 kg/ha (Andrews and Kumar, 1992;Varshney et al, 2017). It feeds more than 90 million farmers living in poverty with high nutritious (8-19% protein), high fiber (1.2 g/100 g), low starch, and higher micronutrient concentrations (iron and zinc) than wheat, rice, sorghum and maize (Varshney et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Research on the Drought Tolerance Mechanism of Pennisetum Glaucum (L.) in the Root During Seedling

Zhang

Yang

Sun

et al. 2020

Preprint

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BackgroundDrought, being as one of the major environmental limiting factors, leads a huge reduction in crop growth rate and biomass accumulation. Pearl millet is a suitable material to study drought resistance due to its excellent drought tolerance. Root is a very important part of plant playing crucial roles in plant growth and development, which makes it a target to research on.ResultsIn this study, we tried to find the mechanism of drought tolerance of pearl millet by comparing the data of physiology and transcriptome under normal and drought conditions at 3 time points (1 hour, 3 hours and 7 hours) in root at seedling stage. The relative electrical conductivity went up from 1hour to 7 hours in both control and drought stress groups and the content of malondialdehyde showed a decreasing trend. 2004, 1538 and 605 differently expressed genes were found at 1hour, 3 hours and 7 hours respectively. Some of these differently expressed genes were clustered significantly into ‘metabolic processes’, ‘MAPK signaling pathway’ and ‘plant hormone signal transduction’ like ABA signal transduction pathway in GO and KEGG enrichment analysis.ConclusionsPearl millet was found to have a rapid drought response, which may occur before 1 hour contributing to its drought tolerance. These results can provide a theoretical basis to enhance drought resistance in other plants.

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Role of Various Nanoparticles in Countering Heavy Metal, Salt, and Drought Stress in Plants

Alhaithloul¹,

Abdelhamid²,

Soliman³

2021

Sustainable Agriculture Reviews 53

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Silver nanoparticles improved the plant growth and reduced the sodium and chlorine accumulation in pearl millet: a life cycle study

Cited by 57 publications

References 59 publications

Silver Nanoparticles Effects on In Vitro Germination, Growth, and Biochemical Activity of Tomato, Radish, and Kale Seedlings

Silver Nanoparticles Effects on In Vitro Germination, Growth, and Biochemical Activity of Tomato, Radish, and Kale Seedlings

Research on the Drought Tolerance Mechanism of Pennisetum Glaucum (L.) in the Root During Seedling

Role of Various Nanoparticles in Countering Heavy Metal, Salt, and Drought Stress in Plants

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