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| 1 | Phytohormones and their metabolic engineering for abiotic stress tolerance in crop plants显示文摘Abiotic stresses including drought,salinity,heat,cold,flooding,and ultraviolet radiation causes crop losses worldwide.In recent times,preventing these crop losses and producing more food and feed to meet the demands of ever-increasing human populations have gained unprecedented importance.However,the proportion of agricultural lands facing multiple abiotic stresses is expected only to rise under a changing global climate fueled by anthropogenic activities.Identifying the mechanisms developed and deployed by plants to counteract abiotic stresses and maintain their growth and survival under harsh conditions thus holds great significance.Recent investigations have shown that phytohormones,including the classical auxins,cytokinins,ethylene,and gibberellins,and newer members including brassinosteroids,jasmonates,and strigolactones may prove to be important metabolic engineering targets for producing abiotic stress-tolerant crop plants.In this review,we summarize and critically assess the roles that phytohormones play in plant growth and development and abiotic stress tolerance,besides their engineering for conferring abiotic stress tolerance in transgenic crops.We also describe recent successes in identifying the roles of phytohormones under stressful conditions.We conclude by describing the recent progress and future prospects including limitations and challenges of phytohormone engineering for inducing abiotic stress tolerance in crop plants. | Shabir H.Wani Vinay Kumar Varsha Shriram Saroj Kumar Sah | 2016 | The Crop Journal2016，4，3： | 25 |
| 2 | Synthesis of novel adsorbent by intercalation of biopolymer in LDH for the removal of arsenic from synthetic and natural water显示文摘This study focuses on the synthesis of nanocomposites named CCA and CZA that were prepared by the incorporation of cellulose(CL)in the Ca/Al and Zn/Al layered double hydroxide(LDH),respectively.These materials were then used for the uptake of As(Ⅲ)and As(V)from aqueous medium.Characterization of both nanocomposites(CCA and CZA)was done using FTIR and Raman analysis to identify the functional groups,N2 adsorption-desorption isotherms to determine the specific surface area and pore geometry and XPS analysis to obtain the surface atomic composition.Some other characters were investigated using simultaneous TGA and DTA and elemental chemical analysis(CHNS/O).The crystallinity of the prepared nanocomposites was displayed by XRD patterns.Furthermore,the sheet-like structure of the LDHs and the irregularity of surface morphology with porous structure were observed by TEM and SEM microphotographs.Optimization of maximum adsorption capacity was adjusted using different parameters including pH,contact time and adsorbent dosage.The pseudo-second-order model was in good fitting with kinetics results.The adsorption isotherm results showed that CZA exhibits better adsorption capacity for As(Ⅲ)than CCA and the Langmuir isotherm model described the data well for both nanocomposites.Thermodynamic studies illustrated the endothermic nature of CCA and exothermic nature on CZA,as well as the fact that the adsorption process is spontaneous.A real water sample collected from well located in Gabes(Tunisia),has also been treated.The obtained experimental results were confirmed that these sorbents are efficient for the treatment of hazardous toxic species such as. | Hanen Bessaies Sidra Iftekhar Bhairavi Doshi Jamel Kheriji Mohamed Chaker Ncibi Varsha Srivastava Mika Sillanpaa Bechir Hamrouni | 2020 | Journal of Environmental Sciences2020，32，5： | 10 |
| 3 | Understanding peroral absorption:regulatory aspects and contemporary approaches to tackling solubility and permeability hurdles显示文摘Oral drug absorption is a process influenced by the physicochemical and biopharmaceutical properties of the drug and its inter-relationship with the gastrointestinal tract. Drug solubility, dissolution and permeability across intestinal barrier are the key parameters controlling absorption. This review provides an overview of the factors that affect drug absorption and the classification of a drug on the basis of solubility and permeability. The biopharmaceutical classification system(BCS) was introduced in early90's and is a regulatory tool used to predict bioavailability problems associated with a new entity, thereby helping in the development of a drug product. Strategies to combat solubility and permeability issues are also discussed. | Prachi B.Shekhawat Varsha B.Pokharkar | 2017 | Acta Pharmaceutica Sinica B2017，7，3： | 4 |
| 4 | Diversification of primary gene pool through introgression of resistance to foliar diseases from synthetic amphidiploids to cultivated groundnut(Arachis hypogaea L.)显示文摘Groundnut(Arachis hypogaea L.)is widely grown and consumed around the world and is considered to have originated from a single hybridization event between two wild diploids.The utilization of wild germplasm in breeding programs has been restricted by reproductive barriers between wild and cultivated species and technical difficulties in making large numbers of crosses.Efforts to overcome these hurdles have resulted in the development of synthetic amphidiploids,namely ISATGR 278-18(Arachis duranesis×Arachis batizocoi)and ISATGR 5B(Arachis magna×A.batizocoi),which possess several desirable traits,including resistance to foliar diseases that generally cause huge yield losses annually in groundnut growing areas of Asia,America,and Africa.With an objective to improve foliar disease resistance,the primary gene pool was diversified by introgressing foliar disease resistance in five cultivated genotypes(ICGV 91114,ICGS 76,ICGV 91278,JL 24,and DH 86)from synthetic amphidiploids using a backcross breeding approach.Several introgression lines with resistance to two foliar diseases(rust and late leaf spot)were identified with levels of resistance equal to the donors.These backcross derived lines have shown a wide range of variation for several morphological and agronomic traits.These lines,after further evaluation and selection,can serve as donors in future breeding programs aimed atdeveloping improved cultivars with desirable agronomic traits,high resilience to biotic/abiotic stresses and a broadened genetic base. | Varsha Kumari M.V.C.Gowda Vinod Tasiwal Manish K.Pandey Ramesh S.Bhat Nalini Mallikarjuna Hari D.Upadhyaya Rajeev K.Varshney | 2014 | The Crop Journal2014，2，Z1： | 3 |
| 5 | Experimental and numerical investigation of liquid-solid binary fluidized beds: Radioactive particle tracking technique and dense discrete phase model simulations显示文摘 | Varsha Jain Lipika Kalo Deepak Kumar Harish J. Pant Rajesh K. Upadhyay | 2017 | Particuology2017，15，4： | 3 |
| 6 | Synthesis and application of biocompatible nontoxic nanoparticles for reclamation of Ce^3+ from synthetic wastewater: Toxicity assessment, kinetic, isotherm and thermodynamic study显示文摘The aim of present study is to synthesize forsterite nanoparticles(FRST) for the reclamation of cerium ions(Ce^(3+)) from synthetic wastewater.The aim to synthesize FRST nanoparticles is due to its biocompatible and nontoxic nature.The formation of nanoparticles with average diameter of 58 nm was confirmed by TEM analysis.SEM images of bare FRST nanoparticles show a heterogeneous surface with porous nature.BET surface area of FRST nanoparticles is calculated to be 33.69 m^2/g.The significant uptake of Ce^(3+) ions can be obtained for all the selected concentrations(25-150 mg/L) within 2 h of adsorbent—adsorbate interaction.The pH study shows that by increasing pH from acidic to alkaline range,higher removal can be achieved.Temperature study demonstrates the endothermic nature of Ce^(3+)adsorption.The value of sticking probability suggests very high sticking probability of Ce^(3+) ion for FRST nanoparticles.Ce^(3+) uptake is favored by higher temperature and with the increase in temperature from298 to 328 K,Langmuir adsorption capacity increases from 36.45 to 42.99 m^2/g.Applicability of FRST nanoparticles was also investigated for other light and heavy rare earth elements in single solute and multisolute systems,FRST nanoparticles show the significant removal of divalent metallic pollutants as well.The assessment of chemical toxicity of treated wastewater was carried out with the bioluminescent photobacterium(Vibrio fischeri) and decreased toxicity was observed in treated water samples.The outcome of present study suggests that the FRST nanoparticles can be efficiently utilized for the removal of Ce^(3+) ions and a wide range of other pollutant species as well. | Varsha Srivastava Sidra Iftekhar ZhaoWang Indu Babu Mika Sillanpaa | 2018 | Journal of Rare Earths2018，36，9： | 2 |
| 7 | Synthesis of malachite@clay nanocomposite for rapid scavenging of cationic and anionic dyes from synthetic wastewater显示文摘Synthesis of malachite@clay nanocomposite was successfully carried out for the removal of cationic(Methylene Blue,MB) and anionic dyes(Congo Red,CR) from synthetic wastewater.Nanocomposite was characterized by TEM,SEM,FT-IR,EDS analysis and zeta potential.TEM analysis indicated that the particle diameter of nanocomposite was in the range of 14 to23 nm.Various important parameters viz.contact time,concentration of dyes,nanocomposite dosage,temperature and solution pH were optimized to achieve maximum adsorption capacity.In the case of MB,removal decreased from 99.82%to 93.67%while for CR,removal decreased from 88.55%to 75.69%on increasing dye concentration from 100 to 450 mg/L.pH study confirmed the higher removal of CR in acidic range while MB removal was higher in alkaline range.Kinetic study revealed the applicability of pseudo-second-order model for the adsorption of both dyes.Negative values of AG0 for both systems suggested the feasibility of dye removal and support for spontaneous adsorption of CR and MB on nanocomposite.Nanocomposite showed 277.77 and 238.09 mg/g Langmuir adsorption capacity for MB and CR respectively.Desorption of dyes from the dye loaded nanocomposite was easily carried out with acetone.The results indicate that the prepared malachite@clay nanocomposite is an efficient adsorbent with high adsorption capacity for the aforementioned dyes. | Varsha Srivastava Mika Sillanpää | 2017 | Journal of Environmental Sciences2017，29，1： | 2 |
| 8 | Sulfonic acid-functionalized mesoporous silica catalyst with different morphology for biodiesel production显示文摘Sulfonic acid functionalized mesoporous silica based solid acid catalysts with different morphology were designed and fabricated.The synthesized materials were characterized by various physicochemical and spectroscopic techniques like scanning electron microscopeenergy dispersive X-ray spectroscopy,Fourier transform infrared spectroscopy,Brunauer–Emmett–Teller surface area,thermogravimetric analysis and n-butylamine acidity.The shape of catalysts particles plays an important role in its activity.The sulfonic acid functionalized mesoporous silica catalysts of spherical shape and the cube shape were assessed for catalytic activity in biodiesel production.The catalytic biodiesel production reaction over the catalysts were studied by esterification of free fatty acid,oleic acid with methanol.The effect of various reaction parameters such as catalyst concentration,acid/alcohol molar ratio,catalyst amount,reaction temperature and reaction time on catalytic activity were investigated to optimize the conditions for maximum conversion.It was sulfonated cubic shape mesoporous silica which exhibited better activity as compared to the spherical shape silica catalysts.Additionally,the catalyst was regenerated and reused up to three cycles without any significant loss in activity.The present catalysts exhibit superior performance in biodiesel production and it can be used for the several biodiesel feedstock’s that are rich in free fatty acids. | Vinayak Hegde Parimal Pandit Pranita Rananaware Varsha PBrahmkhatri | 2022 | Frontiers of Chemical Science and Engineering2022，16，8： | 2 |
| 9 | Prevalence of Helicobacter pylori in asymptomatic subjects—A nested PCR based study显示文摘 | Shrutkirti Mishra Varsha Singh G.R.K. Rao V.K. Dixit A.K. Gulati Gopal Nath | 2008 | Infection Genetics and Evolution2008，，6： | 2 |
| 10 | Circulating endothelial progenitor cells in multiple myeloma: implications and significance显示文摘 | Hong Zhang Varsha Vakil Marc Braunstein | 2005 | Blood2005，105，8： | 1 |
| 11 | Induction of Systemic Resistance in Plants Against Viruses by a Basic Protein from Clerodendrum aculeatum Leaves显示文摘 | VERMA H N SHALINI SRIVASTAVA VARSHA | 1996 | Phytopathology1996，，86： | 1 |
| 12 | Sleep disorders and EEG recording显示文摘 | Varsha Pandey Alkesh Agarwal Mohd Maroof Siddiqui | 2015 | International Journal of Electronics and Computer Science Engineering2015，4，3： | 1 |
| 13 | Construct design for efficient, effective and high-throughput gene silencing in plants 显示文摘 | Varsha S W | 2001 | The Plant Journal2001，27，6： | 1 |
| 14 | Animal models and cell Lines of pancreatic neuroendocrine tumors显示文摘 | Varsha Babu Navin Paul Run Yu | 2013 | Pan- creas2013，42，6： | 1 |
| 15 | Phototherapeutic Keratectomy in Pediatric Patients in India显示文摘 | Varsha Madanlal Rathi Sharadini Prateep Vyas Pravin Krishna Vaddavalli Virender S Sangwan Somasheila I Murthy | 2010 | Cornea2010，，10： | 1 |
| 16 | A critical review on Nepal Dock(Rumex nepalensis):A tropical herb with immense medicinal importance显示文摘Rumex nepalensis Spreng.(Polygonaceae) commonly known as Nepal Dock has wide-spectrum therapeutic potencies and is extensively used for centuries in traditional medicine systems. The leaves of this plant are edible and a rich source of natural antioxidants. They act as a possible food supplement and are largely used in pharmaceutical industry. Extracts and metabolites from this plant exhibits pharmacological activities including anti-inflammatory, antioxidant, antibacterial, antifungal, antiviral, insecticidal, purgative, analgesic, antipyretic, anti-algal, central nervous system depressant, genotoxic, wound healing and skeletal muscle relaxant activity. Due to its remarkable biological activities, it has the potential to act as a rich source of drug against life threatening diseases. However, more studies are needed to scientifically validate the traditional uses of this plant, beside isolating and identifying their active principles and characterizing the mechanisms of action. We present herein a critical account of its botany, ecology, traditional uses, phytoconstituent profile and major pharmacological activities reported in recent years and therefore will provide a source of information on this plant for further studies. | Samrin Shaikh Varsha Shriram Amrita Srivastav Pranoti Barve Vinay Kumar | 2018 | Asian Pacific Journal of Tropical Medicine2018，11，7： | 1 |
| 17 | Aspergillus aculeatus as a rock phosphate solubilizer 显示文摘 | VARSHA NARSIAN PATEL H H NARSIAN V | 2000 | Soil Biology&Biochemistry2000，32，： | 1 |
| 18 | Frequency of Depression After Stroke: A Systematic Review of Observational Studies显示文摘 | Maree L. Hackett Chaturangi Yapa Varsha Parag Craig S. Anderson | 2005 | Stroke2005，，6： | 1 |
| 19 | Hypoglycemic action of vitamin K1 protects against early-onset diabetic nephropathy in streptozotociminduced rats显示文摘 | Sai Varsha MK Raman T Manikandan R | 2015 | Nutrition2015，31，10： | 1 |
| 20 | Activator-assisted electroless deposition of copper nanostructured films显示文摘This paper showed simple and effective synthesis of copper nanoparticles within controlled diameter using direct electroless deposition on glass substrates,following the sensitization and activation steps.Electroless-deposited metals,such as Cu,Co,Ni,and Ag,and their alloys had many advantages in micro-and nanotechnologies.The structural,morphological,and optical properties of copper deposits were characterized using X-ray diffraction(XRD),atomic force microscopy(AFM),and UV-Vis spectroscopy.The structural data was further analyzed using the Rietveld refinement program.Structural studies reveal that the deposited copper prefers a(111)orientation.AFM studies suggest the deposited materials form compact,uniform,and nanocrystalline phases with a high tendency to self-organize.The data show that the particle size can be controlled by controlling the activator concentration.The absorption spectra of the as-deposited copper nanoparticles reveal that the plasmonic peak broadens and exhibits a blue shift with decreasing particle size. | Varsha R. Mehto R. K. Pandey | 2014 | International Journal of Minerals,Metallurgy and Materials2014，21，2： | 1 |
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