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Understanding water conservation vs. prof ligation traits in vegetable legumes through a physio-transcriptomic-functional approach

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Horticulture Research 2023年第3期10卷 28-40页

作者： Pingping Fang Ting Sun arun kumar pandey Libo Jiang Xinyang Wu Yannan Hu Shiping Cheng Mingxuan Li Pei Xu College of Life Sciences China Jiliang UniversityXueyuan Street No.258Hangzhou 310018China School of Life Sciences and Medicine Shandong University of TechnologyXincun West Road No.255Zibo 255000China Henan Provincial Key Lab of Germplasm Innovation and Utilization of Eco-economic Woody Plant Pingdingshan UniversityWeilai Street No.1Pingdingshan 467000China Key Laboratory of Specialty Agri-Product Quality and Hazard Controlling Technology of Zhejiang China Jiliang UniversityXueyuan Street No.258Hangzhou 310018China

Abstract Vegetable soybean and cowpea are related warm-season legumes showing contrasting leaf water use behaviors under similar root drought stresses,whose mechanisms are not well *** we conducted an integrative phenomic-transcriptomic study on the two crops grown in a feedback irrigation system that enabled precise control of soil water *** transpiration rate monitoring demonstrated that cowpea used water more conservatively under earlier soil drought stages,but tended to maintain higher transpiration under prolonged ***,we observed a soybean-specific transpiration rate increase accompanied by phase shift under moderate soil ***-series transcriptomic analysis suggested a dehydration avoidance mechanism of cowpea at early soil drought stage,in which the VuHAI3 and VuTIP2;3 genes were suggested to be *** gene clustering analysis revealed different responsiveness of genes to drought,time of day and their interactions between the two crops,which involved species-dependent regulation of the circadian clock *** network analysis identified two co-expression modules each associated with transpiration rate in cowpea and soybean,including a pair of negatively correlated modules between *** hub genes,including the ABA-degrading gene GmCYP707A4 and the trehalose-phosphatase/synthase gene VuTPS9 were *** network analysis revealed putative co-players of the hub *** analyses verified the role of VuTPS9 in regulating transpiration rate under osmotic *** findings propose that species-specific transcriptomic reprograming in leaves of the two crops suffering similar soil drought was not only a result of the different drought resistance level,but a cause of it.

关键词： soybean soil crops

Phytopharmacological Profile of Jasminum Grandiflorum Linn.(Oleaceae)

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Chinese Journal of Integrative Medicine 2016年第4期22卷 311-320页

作者： Mittal arun Sardana Satish pandey Anima Hindu College of Pharmacy SonipatHaryana-(131001)India Department of Pharmaceutical Sciences Birla Institute of TechnologyMesraRanchiJharkhand(835215)India

Plants are the real basis towards animal life and are also central to people＇s livelihood. The contributions of the plants in performing varied religious celebrations and in other multiple beneficiaries like medicine, human happiness as well as in treating deadly diseases can never be neglected. In treating diseases, the plants and their constituents are better choice than any other synthetic chemical. The nature has been kind enough to provide the human beings with various types of medicinal plants and in the real sense these form the storehouse of curing almost all the ailments. Consequently, most of the drugs which are being used in preparing formulations have their origin and roots in the plants which form the chief natural source of medicines. Even in modern era, the plant-derived drugs are being extensively used, either in their original or semi-synthetic form. It is because their natural phytoconstituents are highly innocuous posing relatively fewer or no side effects. Based upon their observations, analysis and experience, our ancestors used many plants for medicinal purposes and thus their efforts need to be supported by scientific evidence. Jasminum grandiflorum Linn. is one of such important plants. It has been extensively used by the tribes all over India to treat different diseases which mainly include body pains, toothache, stomach ache, ulcers, and sexual impotency. Chemistry of the plant revealed the presence of mainly secoiridoids, terpenoids, flavonoids and tannins. Not much scientific support was given to the folklore claims for this plant but some of its traditional uses were investigated like spasmolytic, wound healing, antimicrobial, angiotensin converting enzyme inhibitor, antiulcer and antioxidant activities. This article is the review of research works done on the plant Jasminum grandiflorum Linn. to date. As a part of it the local names, morphology, traditional claims, chemistry and pharmacological activities have been discussed.

关键词： Jasminum grandiflorum Linn. ethnobotany phytochemistry pharmacological activity

Evolution of the 2015/16 El Nio and historical perspective since 1979

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Science China Earth Sciences 2017年第9期60卷 1572-1588页

作者： Yan XUE arun kumar Climate Prediction Center National Centers for Environmental Prediction National Weather Service National Oceanic and Atmospheric Administration College Park MD 20740 USA

The 2015/16 El Nio developed from weak warm conditions in late 2014 and NINO3.4 reached 3℃ in November 2015. We describe the characteristics of the evolution of the 2015/16 El Nio using various data sets including SST, surface winds,outgoing longwave radiation and subsurface temperature from an ensemble operational ocean reanalyses, and place this event in the context of historical ENSO events since 1979. One salient feature about the 2015/16 El Nio was a large number of westerly wind bursts and downwelling oceanic Kelvin waves(DWKVs). Four DWKVs were observed in April-November 2015 that initiated and enhanced the eastern-central Pacific warming. Eastward zonal current anomalies associated with DWKVs advected the warm pool water eastward in spring/summer. An upwelling Kelvin wave(UWKV) emerged in early November 2015 leading to a rapid decline of the event. Another outstanding feature was that NINO4 reached a historical high(1.7℃), which was 1℃(0.8℃) higher than that of the 1982/83(1997/98) El Nio . Although NINO3 was comparable to that of the 1982/83 and 1997/98 El Nio , NINO1+2 was much weaker. Consistently, enhanced convection was displaced 20 degree westward, and the maximum D20 anomaly was about 1/3.1/2 of that in 1997 and 1982 near the west coast of South America.

关键词： ENSO Sea surface temperature Westerly wind bursts Ocean Kelvin waves Thermocline variability Ocean reanalysis

Comparative cytotoxicity of nanoparticles and ions to Escherichia coli in binary mixtures

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Journal of Environmental Sciences 2017年第5期29卷 11-19页

作者： Swati Srivastaua arun kumar Department of Civil Engineering Indian Institute of Technology Delhi New Delhi 110016 India

The objective of this study was to understand toxicity of mixture of nanoparticles （NPs）（ZnO and TiO2） and their ions to Escherichia coll. Results indicated the decrease in percentage growth of E. coli with the increase in concentration of NPs both in single and mixture setups. Even a small concentration of I mg/L was observed to be significantly toxic to E. coli in binary mixture setup （exposure concentration： 1 mg/L ZnO and 1 mg/L TiO2; 21.15% decrease in plate count concentration with respect to control）. Exposure ofE. coli to mixture of NPs at 1000 mg/L （i.e., 1000 mg/L ZnO and 1000 mg/L TiO2） resulted in 99.63% decrease in plate count concentration with respect to control. Toxic effects of ions to E. coli were found to be lesser than their corresponding NPs. The percentage growth reduction was found to be 36% for binary mixture of zinc and titanium ions at the highest concentration （i.e., 803.0 mg/L Zn and 593.3 mg/L Ti where ion concentrations are equal to the Zn ions present in 1000 mg/L ZnO NP solution and Ti＋4 ions present in 1000 mg/L TiO2 NP solution）. Nature of mixture toxicity of the two NPs to E. coli was found to be antagonistic. The alkaline phosphatase （Alp） assay indicated that the maximum damage was observed when E. coli was exposed to 1000 mg/L of mixture of NPs. This study tries to fill the knowledge gap on information of toxicity of mixture of NPs to bacteria which has not been reported earlier.

关键词： E. coli Zinc oxide nanoparticles Titanium dioxide nanoparticles Mixture toxicity Alkaline phosphatase assay

Shock wave mitigation using zig-zag structures and cylindrical obstructions

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Defence Technology（防务技术） 2021年第6期17卷 1840-1851页

作者： arun kumar R Vaibhav Pathak Department of Mechanical Engineering Indian Institute of Technology Jodhpur(IITJ)JodhpurRajasthan342037India

The present study focuses on the mitigation of shock wave using novel geometric passages in the flow *** strategy is to produce multiple shock reflections and diffractions in the passage with minimum flow obstruction,which in turn is expected to reduce the shock wave strength at the target *** the present study the interaction of a plane shock front(generated from a shock tube)with various geometric designs such as,1)zig-zag geometric passage,2)staggered cylindrical obstructions and 3)zigzag passage with cylindrical obstructions have been investigated using computational *** is seen from the numerical simulation that,among the various designs,the maximum shock attenuation is produced by the zig-zag passage with cylindrical obstructions which is then followed by zig-zag passage and staggered cylindrical obstructions.A comprehensive investigation on the shock wave reflection and diffraction phenomena happening in the proposed complex passages have also been carried *** the new zig-zag design,the initial shock wave undergoes shock wave reflection and diffraction process which swaps alternatively as the shock front moves from one turn to the other *** cyclic shock reflection and diffraction process helps in diffusing the shock wave energy with practically no obstruction to the flow *** is found that by combining the shock attenuation ability of zig-zag passage(using shock reflection and diffraction)with the shock attenuation ability of cylindrical blocks(by flow obstruction),a drastic attenuation in shock strength can be achieved with moderate level of flow blocking.

关键词： Blast wave mitigation Blockage ratio Geometric obstructions Shock wave reflection and diffraction Zig-zag structure

Secure Model to Generate Path Map for Vehicles in Unusual Road Incidents Using Association Rule Based Mining in VANET

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Journal of Electronic Science and Technology 2018年第2期16卷 153-162页

作者： arun Malik Babita pandey Chia-Chun Wu Department of Industrial Engineering and Management National Quemoy UniversityQuemoy 89250

Logical behavioral arrangements are a class of conventional arrangements to illustrate the happening of incidents in an appropriate and structured approach in vehicular ad hoc network （VANET）. These incidents are characterized as a list of path segments that are passed through by the vehicles for the duration of their journeys from a pre-decided local source to a local destination in a structured manner. A set of proper description illustrating the paths traversed by the vehicles as logical behavioral arrangements is describedin this paper. The data gathering scheme based on secure authentication to gather the data from the vehicles is proposed in this paper. This proposed data gathering scheme based on secure authentication is compared with the existing data gathering schemes by using veins framework and the results of analysis reflect that the proposed scheme outperforms among others. The data collected from the vehicles by the proposed data gathering scheme is stored at distributed road side units （RSUs）. From these collected paths, the common and frequent paths opted by the vehicles in a certain region are determined by using frequent arrangement mining approach. An estimation model is used to decidethe next path and the whole path map opted by the vehicles in unusual situations like accident, jams, or a particular time of day. The proposed scheme will helpthe society in reducing the waiting time in vent of emergency or normal working days.

关键词： Confidence motion arrangements support vehicular ad hoc network(VANET) vehicle-toroad side unit(V2R) vehicle-to-vehicle(V2V)

PAPR Reduction in NOMA by Using Hybrid Algorithms

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Computers, Materials & Continua 2021年第10期69卷 1391-1406页

作者： Mohit kumar Sharma arun kumar Department of Electronics and Communication Engineering JECRC UniversityJaipur303905India

Non-orthogonal multiple access(NOMA)is gaining considerable attention due to its features,such as low out-of-band radiation,signal detection capability,high spectrum gain,fast data rate,and massive D2D *** may be considered for 5G ***,the high peak-to-average power ratio(PAPR)is viewed as a significant disadvantage of a NOMA waveform,and it weakens the quality of signals and the throughput of the *** this article,we introduce a modified NOMA system by employing a block of wavelet transform,an alternative to FFT(Fast Fourier transform).The modified system combines the details of fractional frequency and time analysis of NOMA *** this correspondence,we utilize an advanced partial transmission scheme(PTS),and selective mapping(SLM),and present a genetic algorithm(GA)for SLM to investigate the peak power performance of a WT-based NOMA *** performance of WT-SLM,WT-PTS,and WT-SLM-GA methods is compared with that of the traditional NOMAbased SLM and PTS *** simulation results demonstrate that the proposed system effectively reduces PAPR in comparison with the traditional schemes.

关键词： PAPR wavelet transform NOMA PTS SLM 5G

MATHEMATICAL DESCRIPTION OF GROWTH OF MULTIPLE ROOT BRANCHING STRUCTURE IN A PLANT

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International Journal of Biomathematics 2013年第3期6卷 1-10页

作者： arun kumar Department of Mathematics Government College Kota (Raj.) India

An existing growth model of Edelstien is extended and modified for multiple root branching structure or root hairs of any plant. Numerical and analytical solutions for the model are developed and compared. In the derivation it is assumed that multiple root branches are attached to the root surface that acts as a continuous source of new tips. The numerical scheme is derived with anticipation of the fact that comparison with experimental data may necessitate a more complicated model.

关键词： Uptake parameter asymptotic matching van Genuchten formula relativewater content.

Effect of simvastatin on paraoxonase 1(PON1) activity and oxidative stress

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Asian Pacific Journal of Tropical Medicine 2010年第4期3卷 310-314页

作者： arun kumar Department of Biochemistry College of MedicineThe West Bengal University of Health SciencesKalyaniNadia Pin:741235

Objective:To investigate the effect of simvastatin treatment on lipid pr of ile and oxidative stress in hypercholesterolaemic Indian population and determine the effect of simvastatin treatment on the activity of paraoxonase（PON）.Methods:Analyzed initially before medication administration and four months later after *** and lipoprotein measurement were done by enzymatic kits,high density lipoprotein（HDL） was determined by phosphotungstic acid precipitation method and low density lipoprotein（LDL） was calculated by Friedewald’s *** peroxidation was measured by three markers namely,conjugated diene,total peroxide,and *** diene was assayed by Buege and Aust *** peroxide was determined by FOX2 *** determination was carried out by Flemming method and total antioxidant status was determined by *** activity was determined by measuring the absorbance inrease of p-nitrophenol at 405 *** activity was calculated from the molar coefficient of 1 310 M-1 cm-1.Results:Simvastatin significantly reduced total cholesterol,triglycerides,LDL,conjugated diene,total peroxide and MDA levels,where as antioxidant status was significantly ***,simvastatin significantly increased PON1 activity towards ***:The results from the current study indicate simvastatin may have important antioxidant properties via increasing PON activity.

关键词： Hypercholesterolaemia Simvastatin Oxidative stress India