Plant Nano Biology最新文献

{"title":"Novel super nanocomposite (CeO-SiO2 nanocomposite) with enhanced biological application: Synthesis and characterization","authors":"G. Sabeena,&nbsp;S. Vainath praveen,&nbsp;E. Pushpalakshmi,&nbsp;S. Rajaduraipandian,&nbsp;G. Annadurai","doi":"10.1016/j.plana.2023.100025","DOIUrl":"https://doi.org/10.1016/j.plana.2023.100025","url":null,"abstract":"<div><p>Cerium Oxide nanoparticles (CeO NPs), Silica nanoparticles (SiO₂ NPs), and CeO-SiO₂ nanocomposite (Super Nanocomposite) are some of the most promising new developments in the field of investigation. One of the most popular metal oxide nanocomposites in biological applications is CeO-SiO₂ nanocomposite (Super Nanocomposite), which has excellent biocompatibility and is also inexpensive and low-toxic. CeO nanoparticles (CeO NPs), Silica nanoparticles (SiO₂ NPs), and CeO-SiO₂ nanocomposite (Super Nanocomposite) have all demonstrated promise in the field of biomedicine, particularly in the anti-diabetic, anti-inflammatory, and antibacterial fields. In order to combat various bacterial species, Super Nanocomposite concentrations (50 µL/mL) were developed. In this case, silica nanoparticles (SiO₂ NPs), cerium oxide nanoparticles (CeO NPs), and CeO-SiO₂ nanocomposite (Super Nanocomposite) have greater antibacterial activity in the zone of inhibition. SiO₂ NPs, CeO NPs, and CeO-SiO₂ Nanocomposite (Super Nanocomposite) various in-vitro biological activities were also assessed, including their anti-inflammatory and anti-diabetic properties. In comparison to SiO₂ NPs and CeO NPs, Super Nanocomposite exhibits greater anti-inflammatory and anti-diabetic characteristics. In this study, SiO₂ NPs, CeO NPs, and CeO-SiO₂ nanocomposite (Super Nanocomposite) were produced using a basic precipitation method. It was established that SiO₂ NPs, CeO NPs, and CeO-SiO₂ Nanocomposite (Super Nanocomposite) have been characterized utilizing XRD, SEM-EDX, FTIR, UV, and TGA. This study shown that CeO-SiO₂ Nanocomposite (Super Nanocomposite) outperformed SiO₂ NPs and CeO NPs in terms of in vitro bioactivities. This study emphasises the importance of producing CeO-SiO₂ nanocomposite (Super Nanocomposite) materials sustainably for biomedical applications.</p></div>","PeriodicalId":101029,"journal":{"name":"Plant Nano Biology","volume":"3 ","pages":"Article 100025"},"PeriodicalIF":0.0,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50195169","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fostering nanoscience’s strategies: A new frontier in sustainable crop improvement for abiotic stress tolerance","authors":"Biswajit Mohapatra ,&nbsp;Shivangi Chamoli ,&nbsp;Prafull Salvi ,&nbsp;Saurabh C. Saxena","doi":"10.1016/j.plana.2023.100026","DOIUrl":"https://doi.org/10.1016/j.plana.2023.100026","url":null,"abstract":"<div><p>Advanced nano-engineering is a convenient technology to attain food security and ensure sustainable agricultural yield and productivity. In addition to addressing the yield barrier, the application of nanoscience emphasizes its potential through innovations such as precision farming, site-targeted delivery of agrochemicals, disease control, and mitigation of environmental stresses in plants. Abiotic stresses negatively influence growth and yield of plants by affecting the physiological, biochemical, and molecular aspects of plants. As seen in recent years, such precedents in plants can be significantly alleviated through the implementation of nanoparticles. The application of nanoparticles helps in understanding the appropriate mechanisms in plants against abiotic stresses and enhances those responses more effectively. Biochemical and physiological adaptations stimulated by nanoparticles include the activation of the antioxidative defense system, stress regulatory gene expressions, stimulation of crucial biochemical pathways, and hormonal regulations. Considering the potential advantages of nanomaterials to date, their full implementation is yet to be a reality in the agricultural sector, largely limited due to concerns regarding the uptake, translocation, bioavailability, and eco-toxicity of nanoparticles. Understanding the underlying mechanisms and responses induced by nanoparticles through molecular approaches is critical in assessing nanomaterials' biological potential. The present review addresses the possible scope of nanotechnology to counter abiotic stress in economically important crops, and their influence on development, growth, absorption, and translocation in plants. Here, an attempt is made to provide an elucidative framework on recent findings related to nanoparticle-induced stress tolerance in plants through a comprehensive insight into molecular mechanisms and biochemical responses that may help to meet the need for adaptive measures in crops during abiotic stress conditions.</p></div>","PeriodicalId":101029,"journal":{"name":"Plant Nano Biology","volume":"3 ","pages":"Article 100026"},"PeriodicalIF":0.0,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50194646","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Greenly biosynthesized bimetallic nanoparticles for ecofriendly degradation of notorious dye pollutants: A review","authors":"Stephen Sunday Emmanuel ,&nbsp;Ademidun Adeola Adesibikan ,&nbsp;Oluwaseyi Damilare Saliu ,&nbsp;Emmanuel Anuoluwapo Opatola","doi":"10.1016/j.plana.2023.100024","DOIUrl":"https://doi.org/10.1016/j.plana.2023.100024","url":null,"abstract":"<div><p>Water is a fundamental gift of nature that has coexisted with mankind since the dawn of creation, and it is vital for daily fundamental uses because everything in this world depends on it one way or another. 71% of the earth’ surface is occupied with water, however, only 2.5% of these abundant resource remain clean to match daily elementary needs within the ecological system due to the advent of industrialization which has come with weighty detrimental consequences on aquatic bodies and thus resulted in water insecurity. Dye runoffs from industries are one of the common felon water pollutants because they are intricate, carcinogenic, neurotoxic, inhibit the growth of photoautotrophic organisms by thwarting sunshine from entering the water and causing an increase in the BOD. Empirically, a variety of physicochemical techniques are used to treat dye runoff, but they are time-consuming, pricey, and inefficient; this necessitates the creation of an ecologically viable substitute to address and eliminate the adverse environmental burden that the dye effluents cause. Interestingly, biosynthesized bimetallic nanoparticles (BBMNPs) constituting two different metallic elements have emerged as a better solution for effective dye treatment, due to their synergistic features, which allow them to outperform monometallic nanoparticles in terms of catalytic efficacy. Firstly, this paper introduces water security and the treatment of dye effluents in water. Then the work progressed to elaborate on various types of dyes, their sources, and the effects of the effluents. In addition, the review covers biosynthesized nanoparticles and the edge they have over traditional nano materials in treating of dye runoffs. Overall, in this review work, various original research reports were juxtaposed, and attempt was made to elucidate the mechanism of degradation and the time taken, and the effectiveness of using green BBMNPs for removing notorious dye water pollutants. The bio-reductants green sources employed for the biosynthesis of bimetallic nanoparticles were also highlighted in this review, and the plausible mechanism of bio-fabrication was explained. This review demonstrates that biosynthesized bimetallic nanoparticles are green materials and are able to out-perform their conventionally synthesized mates.</p></div>","PeriodicalId":101029,"journal":{"name":"Plant Nano Biology","volume":"3 ","pages":"Article 100024"},"PeriodicalIF":0.0,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50194638","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"TiO2 nanoparticles alter nutrients acquisition, growth, biomacromolecules, oil composition and modulate antioxidant defense system in Mentha arvensis L.","authors":"Subodh Kumar ,&nbsp;Archana Dwivedi ,&nbsp;Alok Kumar Pandey ,&nbsp;Poornima Vajpayee","doi":"10.1016/j.plana.2023.100029","DOIUrl":"https://doi.org/10.1016/j.plana.2023.100029","url":null,"abstract":"<div><p>The current study demonstrates the impact of TiO₂ NPs (0–5 µg ml⁻¹) on <em>Mentha arvensis</em> L. (Lamiaceae) cultivated commercially for essential oil. The high concentration of titanium in plant tissues (roots, leaves and stem), presence of Ti peaks in EDS of roots and accumulation of TiO₂ NPs along the inner and outer membrane, cytoplasm, intracellular junctions of <em>M. arvensis</em> root cells after TiO₂ NPs exposure reveal internalization and upward translocation of TiO₂ NPs in <em>M. arvensis</em>. Phytotoxicity of TiO₂ NPs manifested in terms of altered nutrients acquisition, reduced biomass, pigments, relative water contents and enhanced oxidative stress markers ( ≥ 2.5 µg ml⁻¹ TiO₂ NPs) in roots and leaves. Further, TiO₂ NPs incremented the levels of cysteine, non-protein thiols, and proline compared to untreated control. Total phenolic contents also increased (≤1 µg ml⁻¹ TiO₂ NPs) in roots and leaves. Modulation of antioxidant enzymes (SOD, catalase, GPX, APX, AO and GST) in roots and leaves was observed to mitigate adverse effects caused by TiO₂ NPs induced reactive oxygen species. TiO₂ NPs differentially affects cell wall components, lipids and nucleic acids in roots and leaves. The relative peak area (%) of major oil constituents in <em>M. arvensis</em> leaves was significantly altered by TiO₂ NPs. A concentration dependent decrement in relative peak area of α-pinene, β- pinene, Sabinene, Limonene, β – Myrcene has been documented in this study compared to unexposed plants. The present study suggests sustainable use of TiO₂ NPs in agriculture and other commercial products due to their potential biotoxicity.</p></div>","PeriodicalId":101029,"journal":{"name":"Plant Nano Biology","volume":"3 ","pages":"Article 100029"},"PeriodicalIF":0.0,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50194645","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Green synthesized metal nanoparticles as an ecofriendly measure for plant growth stimulation and disease resistance","authors":"S.L. Rasmiya Begum ,&nbsp;Nadeeka U. Jayawardana","doi":"10.1016/j.plana.2023.100028","DOIUrl":"https://doi.org/10.1016/j.plana.2023.100028","url":null,"abstract":"<div><p>Nanotechnology, as an advanced technology plays a vital role in various aspects of plants. In recent past, nanoparticles synthesized via biological routes received attention than that of other means of synthesis due to their cost effectiveness and ecofriendly nature. This review is aimed at providing a comprehensive compilation of information on ecofriendly nature of green synthesized nanoparticles especially in plant disease resistance and plant growth enhancement. According to the available literature, among the different biological sources used for green synthesis of nanoparticles, plant based green synthesis has become more popular in recent years because of their non-toxic nature, higher availability and accessibility. The effects of green synthesized nanoparticles are primarily dose dependent and vary with the characteristics of nanoparticle and the plant. Furthermore, application of such nanoparticles at optimum concentration has notably inhibited the number of phytopathogens and favoured the growth and yield attributes of crop plants. Using the green synthesized nanoparticle in combination with other materials were found to have synergistic effects in disease resistance and causes growth enhancement in crop plants. Even though, numerous inherent benefits are there in the green synthesized nanoparticles, constraints such as toxicity at higher concentrations and unsafe disposal to the environment may limit the continuous application and opens new avenues for future studies.</p></div>","PeriodicalId":101029,"journal":{"name":"Plant Nano Biology","volume":"3 ","pages":"Article 100028"},"PeriodicalIF":0.0,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50194643","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Polypyrrole-based copper oxide-nickel oxide nanocomposites in wastewater treatment, bacterial control and agricultural usage","authors":"Biju R. ,&nbsp;Vanaja Raghavan J.R. ,&nbsp;Ravikumar R. ,&nbsp;Indulal C.R.","doi":"10.1016/j.plana.2022.100016","DOIUrl":"10.1016/j.plana.2022.100016","url":null,"abstract":"<div><p>Polymer matrix nanocomposites are in high demand and have attracted great interest in the expansion of new functional materials owing to their potential in environmental remediation applications. In this context, Polypyrrole-Based Copper oxide-Nickel oxide Nanocomposite (PPCN) was successfully fabricated by combining chemical co-precipitation and in-situ polymerization methods. The chemical co-precipitation technique was used to synthesize Copper oxide-Nickel oxide Nanocomposite using citric acid as a capping agent and in-situ polymerization method was applied to produce Polypyrrole (PPY). The photocatalytic process is a green technology that is developing as a viable option, for removing a variety of toxic pollutants, and antibacterial activity in surface water irrigation is beneficial for the protection of the edible crops from the microbial and dye pollutants in wastewater. The synthesized PPCN is investigated for its photocatalytic properties and for antibacterial activities and is safe for the environment making them a promising material for wide-ranging applications including wastewater treatment, bacterial control, and agricultural purposes. The photocatalytic behavior of the PPCN was studied for the removal of dyes under UV irradiation and showed that these polymer-based nanocomposites could remove and destroy the dye contaminants in high worth. Moreover, the PPCN acts as an excellent catalyst and observed a remarkable dye degradation efficiency of 86% in Alizarin Red (AR) and 80% in Toluidine Blue (TB) dyes within 5hrs. The results show that the PPCN could be used as a well-performing catalyst for water contamination removal. In addition, the antibacterial results indicate that the maximum antibacterial action is against Staphylococcus aureus (S. aureus), Bacillus cereus (B. cereus), and Escherichia coli (E. coli).</p></div>","PeriodicalId":101029,"journal":{"name":"Plant Nano Biology","volume":"2 ","pages":"Article 100016"},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S277311112200016X/pdfft?md5=bcf7b9dee3029b9f3a7fdbee6698477c&pid=1-s2.0-S277311112200016X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72869268","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Leucas aspera mediated SeO nanoparticles synthesis for exploiting its pharmaceutical efficacy","authors":"Gayathri Murugesan ,&nbsp;Raunaka Saha ,&nbsp;D. Sunmathi ,&nbsp;Karuppusamy Nagaraj ,&nbsp;S. Rathish Kumar ,&nbsp;Karthik Subramani","doi":"10.1016/j.plana.2022.100013","DOIUrl":"10.1016/j.plana.2022.100013","url":null,"abstract":"<div><p>The aim of this study is to synthesis Selenium oxide (SeO) nanoparticles using the leaf extract of <em>Leucas aspera</em>. The leaf extract has been reported to show phytochemicals effective for reducing Selenium precursors. Furthermore, these phytochemicals has being reported to show capping and stabilizing property. As-prepared nanoparticles physico-chemical properties were assessed by a array of various characterization technique. UV-Vis and XRD assessment showed maximum absorbance at 273 nm with high crystalline property. Qualitative assessment using FTIR assessment was performed to assess the phytochemical based functional groups presence which helped in reducing, stabilizing of the prepared nanoparticles. Morphological assessment of nanoparticles showed spherical attributes with good aggregation. Functional attributes of SeO nanoparticles for exploiting its pharmaceutical application, illustrated a significant antibacterial activity against both gram negative and gram-positive strains comparable to commercially available antibiotics. Moreover, MTT assay was employed to assess anticancer behaviour of SeO nanoparticles towards MG-63 cells, which showed effective reduction in cell viability. Furthermore, the study confirms photo catalytic degradation property of SeO nanoparticles towards dye degradation. The study not only discusses the SeO nanoparticles physico-chemical and functional properties, but and also opens future scope of SeO in clinical and environmental applications.</p></div>","PeriodicalId":101029,"journal":{"name":"Plant Nano Biology","volume":"2 ","pages":"Article 100013"},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2773111122000134/pdfft?md5=accc4783f0e47fbe59d7ea0ae5690143&pid=1-s2.0-S2773111122000134-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90987104","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Green synthesis of zinc oxide nanoparticles using Vernonia cinerea leaf extract and evaluation as nano-nutrient on the growth and development of tomato seedling","authors":"Zeba Azim ,&nbsp;N.B. Singh ,&nbsp;Shubhra Khare ,&nbsp;Ajey Singh ,&nbsp;Nimisha Amist ,&nbsp;Niharika ,&nbsp;Ravi Kumar Yadav","doi":"10.1016/j.plana.2022.100011","DOIUrl":"10.1016/j.plana.2022.100011","url":null,"abstract":"<div><p>In the present study, the leaves of <em>Vernonia cinerea</em> were utilized as an efficacious bio-reductant, stabilizing, and capping agent for biological/green synthesis of zinc oxide nanoparticles (ZnO NPs). The nanoparticle (NPs) characteristics show that phytocapped ZnO NPs are in the nano-size range (1–100 nm). Fourier transforms infrared studies reveal the outline of the synthesis mechanism for ZnO NPs whereas X-ray diffraction analysis approved the crystalline structure of ZnO-NPs. Energy-dispersive X-ray analysis defined the pureness and chemical constituent of ZnO-NPs. The microscopic analysis of ZnO NPs confirmed the spherical and non-agglomeration attributes of nano-particles. The commenced study reveals the outcome of phytocapped ZnO NPs on the growth of tomato seedlings. Results showed ZnO-NPs boost the morphological as well as physiological characteristics as compared to the bulk Zn. At lower doses, ZnO NPs give better results as compared to higher doses. The higher doses showed obstruction in the growth and development thereby recommending the 50 mg/L⁻¹of ZnO NPs exposed to tomato seedlings is beneficial.</p></div>","PeriodicalId":101029,"journal":{"name":"Plant Nano Biology","volume":"2 ","pages":"Article 100011"},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2773111122000110/pdfft?md5=e54c15a226cd921e65bd048f4b5b6529&pid=1-s2.0-S2773111122000110-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90525469","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"SiO2 nanopriming protects PS I and PSII complexes in wheat under drought stress","authors":"Prabha Rai Kalal ,&nbsp;Rupal Singh Tomar ,&nbsp;Anjana Jajoo","doi":"10.1016/j.plana.2022.100019","DOIUrl":"10.1016/j.plana.2022.100019","url":null,"abstract":"<div><p>Drought is an important abiotic stress that hampers the growth of plants by inhibiting photosynthesis resulting in major crop losses. Silicon is known for its role to alleviate impact of various abiotic stresses in plants. In the present study, drought sensitive wheat variety HI-1544 was subjected to drought stress (DS) by withholding irrigation. The aim of this study was to evaluate the impact of SiO₂ nanopriming in protecting photosynthesis, particularly photosystems (PSI and PSII), under drought condition. DS significantly reduced the quantum yield of PSII (YII) and PSI (YI) in unprimed drought stressed (UP+DS) plants but non-significant reduction was observed in NP+DS wheat plants. Likewise a severe impairment in the electron transport rate of PSII and PSI (ETRII and ETRI) in UP+DS was noticed as compared to NP+DS plants. Among energy dissipation parameters, regulated and non-regulated energy dissipation [Y(NPQ) and Y(NO) respectively] showed prominent increase in UP+DS plants when compared to NP+DS wheat plants. Decrease in YI was accompanied by significant increase in donor Y(ND) and acceptor side Y(NA) limitation of PSI in UP+DS plants. These parameters were less affected in NP+DS wheat plants. A remarkable inhibition in the oxidation reduction kinetics of P700 was observed in UP+DS plants while it were less affected in NP+DS wheat plants. The data suggests that the impact of drought stress (DS) was more prominent on PSII than PSI. SiO₂ nanopriming conferred more protection to PSII complex, thereby improving photosynthetic efficiency under DS.</p></div>","PeriodicalId":101029,"journal":{"name":"Plant Nano Biology","volume":"2 ","pages":"Article 100019"},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2773111122000195/pdfft?md5=ed5aa0c9efcda0132c00293b898a0651&pid=1-s2.0-S2773111122000195-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87941479","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Application of nanoparticles for enhanced UV-B stress tolerance in plants","authors":"Sunil Soni ,&nbsp;Ambuj Bhushan Jha ,&nbsp;Rama Shanker Dubey ,&nbsp;Pallavi Sharma","doi":"10.1016/j.plana.2022.100014","DOIUrl":"10.1016/j.plana.2022.100014","url":null,"abstract":"<div><p>Ultraviolet-B radiation (UV-B) received at the Earth's surface has enhanced because of the declining level of ozone in the upper atmosphere. World-wide decline in crop yield is projected because of the harmful effect of UV-B. High UV-B level affects the growth of the plants by enhancing the concentration of reactive oxygen species (ROS), altering antioxidant enzyme activity, reducing photosynhetic rate, damaging DNA and cell membranes, and disrupting microtubule structure. Plants employ different mechanisms to resist UV-B stress, however these mechanisms collapse under high stress levels. Therefore, mitigation strategies are required to reduce the negative impacts of UV-B on plants. Nanotechnology, an emergent field of science, focusing on engineering of nanomaterial with approximately 1–100 nm size has application in different areas including enhancement of plant stress tolerance. Recent research on TiO₂, Ag and Si nanoparticles (NPs) revealed that they can reduce UV-B stress in plants. NPs significantly alleviate UV-B stress by boosting photosynthesis, enhancing the accumulation of flavonoid, reducing oxidative stress by mimicking antioxidants or improving antioxidant enzyme activities and preventing the microtubule depolymerisation in plant cells. It was also found that effect of NPs was influenced by their physicochemical characteristics, concentration, exposure method, and level and duration of UV-B exposure. In this review, we present an up-to-date compilation of research on the impact of UV-B stress and its mitigation using NPs in plants. We have also discussed recent developments, existing research gaps and future prospects of NPs utilization for UV-B stress mitigation in plants.</p></div>","PeriodicalId":101029,"journal":{"name":"Plant Nano Biology","volume":"2 ","pages":"Article 100014"},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2773111122000146/pdfft?md5=b1fc301720346a0f9ef7e6f86ee2058c&pid=1-s2.0-S2773111122000146-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73279848","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}