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PoWRKY71 is involved in Paeonia ostii resistance to drought stress by directly regulating light-harvesting chlorophyll a/b-binding 151 gene

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Horticulture Research 2023年第11期10卷 1-12页

作者： Yuting Luan Zijie Chen Ziwen Fang Xingqi Huang Daqiu Zhao Jun Tao college of Horticulture and Landscape Architecture Yangzhou UniversityYangzhou 225009China Department of Biochemistry Purdue UniversityWest LafayetteIN 47907USA Joint International Research Laboratory of Agriculture and Agri-Product Safety the Ministry of Education of ChinaYangzhou UniversityYangzhou 225009China

Although the functions of WRKY transcription factors in drought resistance are well known,their regulatory mechanisms in response to drought by stabilising photosynthesis remain ***,a differentially expressed PoWRKY71 gene that was highly expressed in drought-treated Paeonia ostii leaves was identified through transcriptome ***71 positively responded to drought stress with significantly enhanced expression patterns and overexpressing PoWRKY71 in tobacco greatly improved plant tolerance to drought stress,whereas silencing PoWRKY71 in *** resulted in a drought-intolerant ***,lower chlorophyll contents,photosynthesis,and inhibited expression of photosynthesis-related light-harvesting chlorophyll a/b-binding 151(CAB151)gene were found in PoWRKY71-silenced ***,a homologous system indicated that drought treatment increased PoCAB151 promoter *** assays revealed that PoWRKY71 directly bound on the W-box element of PoCAB151 promoter and activated its *** addition,PoCAB151 overexpressing plants demonstrated increased drought tolerance,together with significantly higher chlorophyll contents and photosynthesis,whereas these indices were dramatically lower in PoCAB151-silenced *** above results indicated that PoWRKY71 activated the expression of PoCAB151,thus stabilising photosynthesis via regulating chloroplast homeostasis and chlorophyll content in *** under drought *** study reveals a novel drought-resistancemechanism in plants and provides a feasible strategy for improving plant drought resistance via stabilising photosynthesis.

关键词： harvesting drought resistance

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An updated isoerodent map of the conterminous United States

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International Soil and Water Conservation Research 2022年第1期10卷 1-16页

作者： Ryan P.McGehee Dennis C.Flanagan Puneet Srivastava Bernard A.Engel Chi-Hua Huang Mark A.Nearing Purdue University Agricultural and Biological Engineering225 South University StreetWest LafayetteIN47907USA United States Department of Agriculture-Agricultural Research Service National Soil Erosion Research Laboratory275 S Russell StWest LafayetteIN47907USA University of Maryland Agricultural Experiment StationSymons Hall7998 Regents DriveCollege ParkMD20742-3131USA Purdue University Agricultural Administration Building615 West State StreetWest LafayetteIN47907-2053USAUnited States Department of Agriculture-Agricultural Research ServiceNational Soil Erosion Research Laboratory275 S Russell StWest LafayetteIN47907USA United States Department of Agriculture-Agricultural Research Service Southwest Watershed Research Center2000 E Allen RdTucsonAZ85719USA

Maps of erosivity,which are also commonly referred to as isoerodent maps,have played a critical role in soil conservation efforts in the United States and around the *** available erosivity maps for the United States are either outdated,conflict with erosivity benchmarking studies,or utilized less advanced spatial mapping ***,it is possible that the same underlying issues with US maps are impacting global maps as *** this study,we used more than 340015-min,fixed-interval precipitation gauges to update the isoerodent map of the conterminous United *** values were interpolated using universal kriging under several spatial model configurations and *** optimal spatial model was selected based on which result had the lowest sample variogram ***,erosivity,and erosivity density maps were compared to existing *** average annual and annual erosivity results were compared to high-quality erosivity benchmarking *** values from both RUSLE2 and Panagos et al.(2017)were generally lower in the eastern United States and mixed in the western United States compared to our *** effects resulted in much greater erosivity differences in this study as compared to prior *** comparisons revealed that erosivity maps from this study and others were lower than the benchmark by 14%or more(up to 38%).These findings suggest current practices of storm omission and intensity dampening correction need to be revisited,especially in locations with relatively low-to-moderate rainfall erosivity such as the Midwest or Northeast United States,for example.

关键词： Erosion index Erosivity United States USLE RUSLE2 Soil loss

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Acute systemic accumulation of acrolein in mice by inhalation at a concentration similar to that in cigarette smoke

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Neuroscience Bulletin 2014年第6期30卷 1017-1024页

作者： Melissa Tully Lingxing Zheng Glen Acosta Ran Tian Riyi Shi Weldon School of Biomedical Engineering Purdue UniversityWest LafayetteINUSA Indiana University School of Medicine IndianapolisINUSA Department of Basic Medical Sciences College of Veterinary MedicinePurdue UniversityWest LafayetteINUSA

Cigarette smoke is an important environmental factor associated with a wide array of public health concerns. Acrolein, a component of tobacco smoke and a known toxin to various cell types, may be a key pathological factor mediating the adverse effects linked with tobacco smoke. Although acrolein is known to accumulate in the respiratory system after acute nasal exposure, it is not clear if it accumulates systemically, and less is known in the nervous system. The aim of this study was to assess the degree of acrolein accumulation in the circulation and in the spinal cord following acute acrolein inhalation in mice. Using a laboratory-fabricated inhalation chamber, we found elevated urinary 3-HPMA, an acrolein metabolite, and increased acrolein adducts in the spinal cord after weeks of nasal exposure to acrolein at a concentration similar to that in tobacco smoke. The data indicated that acrolein is absorbed into the circulatory system and some enters the nervous system. It is expected that these findings may facilitate further studies to probe the pathological role of acrolein in the nervous system resulting from smoke and other external sources.

关键词： tobacco lipid peroxidation urine liquid chromatography mass spectrometry

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Chchd10 is dispensable for myogenesis but critical for adipose browning

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Cell Regeneration 2022年第1期11卷 131-145页

作者： Wei Xia Jiamin Qiu Ying Peng Madigan MSnyder Lijie Gu Kuilong Huang Nanjian Luo Feng Yue Shihuan Kuang college of Animal Science and Technology Hebei Agricultural UniversityBaoding 071000China Department of Animal Sciences Purdue UniversityWest LafayetteIN 47907USA college of Animal and Veterinary Science Southwest Minzu UniversityChengdu 610041China college of Biological Sciences China Agricultural UniversityBeijing 100193China

The Chchd10 gene encodes a coiled-coil-helix-coiled-coil-helix-domain containing protein predicted to function in the mitochondrion and *** of Chchd10 are associated with ALS,dementia and myopathy in humans and animal models,but how knockout of Chchd10(Chchd10KO)affects various tissues especially skeletal muscle and adipose tissues remains *** we show that Chchd10 expression increases as myoblasts and preadipocytes *** myogenesis,CHCHD10 interacts with TAR DNA binding protein 43(TDP-43)in regenerating myofib-ers in vivo and in newly differentiated myotubes ex ***,Chchd10KO mice had normal skeletal muscle development,growth and regeneration,with moderate defects in grip strength and motor ***10KO similarly had no effects on development of brown and white adipose tissues(WAT).However,Chchd10KO mice had blunted response to acute cold and attenuated cold-induced browning of WAT,with markedly reduced UCP1 ***,these results demonstrate that Chchd10 is dispensable for normal myogenesis and adipogenesis but is required for normal motility and cold-induced,mitochondrion-dependent browning of *** data also sug-gest that human CHCHD10 mutations cause myopathy through a gain-of-function mechanism.

关键词： Skeletal muscle Myoblasts Regeneration Adipocyte Brown adipose tissue Uncoupling protein 1(UCP1)

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Comprehensive comparison of cellulose nanocrystal (CNC) drying using multi-frequency ultrasonic technology with selected conventional drying technologies

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Journal of Bioresources and Bioproducts 2024年第4期9卷 465-485页

作者： Junli Liu Amir Malvandi Hao Feng Department of Food Science and Human Nutrition University of Illinois Urbana-ChampaignUrbana 61801USA b Department of Agricultural and Biological Engineering Purdue UniversityWest Lafayette 47907USA Laboratory of Renewable Resources Engineering Purdue UniversityWest Lafayette 47907USA Department of Agricultural and Biological Engineering University of Illinois Urbana-ChampaignUrbana 61801USA college of Agriculture and Environmental Science North Carolina Agricultural and Technical State UniversityGreensboro 27411USA

Cellulose nanocrystals(CNCs)have garnered increased attention due to their renewable nature,abundant feedstock availbility,and good mechanical ***,one of the bottlenecks for its commercial production is the drying *** of the low CNC concentrations in suspension after isolation,CNC drying requires the removal of a large amount of water to obtain dry products for the following utilization and saving shipping costs.A novel multi-frequency,multimode,modulated ultrasonic drying technology was developed for CNC drying to improve product quality,reduce energy consumption,and increase production *** dried with dif-ferent drying technologies were characterized by Fourier transform infrared(FT-IR)spectra anal-ysis,X-ray diffraction(XRD)analysis,thermogravimetric analysis(TGA),differential scanning calorimetry(DSC),and redispersibility to measure the quality and property *** the same temperature and airflow rate,ultrasonic drying enhanced drying rates,resulting in at least a 50%reduction in drying time compared to hot air *** mean particle sizes of CNC from ultrasonic drying changed little with settling time,indicating good *** addition,ultrasonic dried CNCs exhibited good stability in aqueous solutions,with the zeta potentials rang-ing from-35 to-65 *** energy consumption and CO_(2) emissions of various CNC drying technologies were *** consumption of ultrasonic drying is significantly reduced compared to other drying ***,the potential CO_(2) emissions of the fully elec-trified ultrasonic drying could be net zero if renewable electricity is used.

关键词： Cellulose nanocrystals Ultrasound Drying kinetics Drying energy Energy-efficient CO_(2)reduction Redispersibility Carbon sequestration

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Antibiotic ciprofloxacin removal from aqueous solutions by electrochemically activated persulfate process:Optimization,degradation pathways,and toxicology assessment

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Journal of Environmental Sciences 2024年第9期143卷 85-98页

作者： Elif Yakamercan Ahmet Aygün Halis Simsek Environmental Engineering Department Bursa Technical UniversityBursaTurkey Agricultural and Biological Engineering Department Purdue UniversityWest LafayetteINUSA

Ciprofloxacin(CIP)is a commonly used antibiotic in the fluoroquinolone group and is widely used in medical and veterinary medicine disciplines to treat bacterial *** CIP is discharged into the sewage system,it cannot be removed by a conventional wastewater treatment plant because of its recalcitrant *** this study,boron-doped diamond anode and persulfate were used to degrade CIP in an aquatic solution by creating an electrochemically activated persulfate(EAP)*** added to the system as a coactivator and the process was called EAP+*** effects of independent variables,including pH,Fe^(2+),persulfate concentration,and electrolysis time on the systemwere optimized using the response surface *** results showed that the EAP+Fe process removed 94%of CIP under the following optimum conditions:A pH of 3,persulfate/Fe^(2+)concentration of 0.4 mmol/L,initial CIP concentration 30 mg/L,and electrolysis time of 12.64 *** removal efficiency was increased from 65.10%to 94.35%by adding Fe^(2+)as a transition *** degradation products,7 pathways,and 78 intermediates of CIP were studied,and three of those intermediates(m/z 298,498,and 505)were *** toxicological analysis based on toxicity estimation software results indicated that some degradation products of CIP were toxic to targeted animals,including fathead minnow,Daphnia magna,Tetrahymena pyriformis,and *** optimumoperation costswere similar in EAP and EAP+Fe processes,approximately 0.54€/m^(3).

关键词： Ciprofloxacin Response surface methodology Electrochemically activated persulfate Electrooxidation

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Analytical and approximate solutions of nonlinear Schrödinger equation with higher dimension in the anomalous dispersion regime

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Journal of Ocean Engineering and Science 2022年第2期7卷 143-154页

作者： Lanre Akinyemi Mehmet Senol M.S.Osman Department of Mathematics Lafayette CollegeEastonPAUSA Nev¸s ehir HacıBekta¸s Veli University Department of MathematicsNev¸s ehirTurkey Department of Mathematics Faculty of ScienceCairo UniversityGiza 12613Egypt

The generalized Riccati equation mapping method(GREMM)is used in this paper to obtain different types of soliton solutions for nonlinear Schrödinger equation with higher dimension that existed in the regimes of anomalous ***,we use the q-homotopy analysis method combined with the Laplace transform(q-HATM)to obtain approximate solutions of the bright and dark optical *** q-HATM illustrates the solutions as a rapid convergent *** addition,to show the physical behavior of the solutions obtained by the proposed techniques,the graphical representation has been provided with some parameter *** findings demonstrate that the proposed techniques are useful,efficient and reliable mathematical method for the extraction of soliton solutions.

关键词： q-homotopy analysis method Generalized Riccati equation mapping method Laplace transform

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Thermal Analysis of Sclerotium of Pleurotus tuber-regium (osu) for Effective Drying

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World Journal of Engineering and Technology 2023年第1期11卷 153-163页

作者： Austin I. Gbasouzor Klein Ileleji Department of Agricultural and Biological Engineering College of Engineering Purdue University West Lafayette IN USA

Thermal drying could lead to the deterioration of substance which affect its nutraceutical and chemical properties. Hence, thermal stability of substance is necessary in course of its drying to acertain the degree of temperature it will be subjected to. In this research, sclerotium of Pleurotus tuberregium is subjected to thermogravimetric analysis, differential thermal analysis and differential scanning calorimetry. Both thermogravimetric analysis and differential thermal analysis were conducted from ambient temperature to 1000°C at a rate of 20°C/min constant heating rate, while differential scanning calorimetry was conducted from ambient temperature to 400°C at a rate of 10°C/min constant heating rate. Besides, the oxides contents of sclerotium of Pleurotus tuberregium were determined using x-ray fluorescence analysis and the mircostruture was determined with scanning electron microscopy. It was discovered that complete dehydration of the sample ended at about 110.38°C and oxidation reaction occurred between 233.42°C to 373.82°C with release of heat by the sample. Sclerotium of Pleurotus tuber-regium is thermal stable up to 233.42°C with decompostion of steroid which is its second major component at about 400°C to 480°C. The x-ray fluorescence analysis of sclerotium of Pleurotus tuber-regium revealed that Na2O, MgO, SiO2, Al2O3, and Fe2O3 are the major compound and SEM analysis showed that it is a solid with amorphous structure having some fibrous skeleton. This study revealed that sclerotium of Pleurotus tuberregium could be dried to minimal moisture content without the deterioration of its nutritional and medinicnal properties.

关键词： Bio-Active Macro-Fungi osu Thermal Behavior Nutraceutical

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Variation in needle and cone traits in natural populations of Pinus yunnanensis

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Journal of Forestry Research 2016年第1期27卷 41-49页

作者： Yulan Xu Keith Woeste Nianhui Cai Xiangyang Kang Genqian Li Shi Chen Anan Duan Key Laboratory for Forest Resources Conservation and Use in the Southwest Mountains of China College of ForestrySouthwest Forestry University Kunming 650224 China The State Engineering Laboratory for Tree Breeding College of Biological Science and Biotechnology Beijing Forestry University Beijing 100083 China USDA Forest Service Hardwood Tree Improvement and Regeneration Center at Purdue University West LafayetteIN 47906 USA

Pinus yunnanensis Franch. is a major component of coniferous forests in southwestern China. Little is known about its intraspecific variation. Morphological variations in needle and cone traits of P. yunnanensis were analyzed to quantify variability among and within natural populations. Seven traits were measured on 10 needles collected from 30 trees in each of the 18 sampled populations of P. yunna- nensis. Four cone traits were measured in 221 individual trees from nine populations. The results showed that there were significant differences （p 〈 0.01） both among popu- lations and within populations in each needle and cone trait. The proportion of phenotypic variation of nearly all needle and cone traits was over 50 % within populations, which showed trees within populations accounted for a majority of the total variation. The needle traits showed higher vari- ability within population than cone traits. Variability in theneedle traits was correlated with geo-climatic parameters （longitude, latitude, altitude, temperature, and precipitation）. Needle length and the ratio of needle length to fascicle sheath length showed clinal variation in response to latitudinal and altitudinal gradients. A hierarchical classification of all populations based on needle traits led to the formation of four major groups. The findings provide important genetic information for the evaluation of variation. Moreover, it will assist in management of genetic diversity of P. yunnanensis.

关键词： Genetic diversity Conservation Yunnanpine Cone morphology Needle morphology

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Hydrogen bonding: a mechanism for tuning electronic and optical properties of hybrid organic–inorganic frameworks

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npj Computational Materials 2016年第1期2卷 19-24页

作者： Fedwa El-Mellouhi El Tayeb Bentria Asma Marzouk Sergey N Rashkeev Sabre Kais Fahhad H Alharbi Qatar Environment&Energy Research Institute(QEERI) Hamad Bin Khalifa UniversityDohaQatar college of Science and Engineering Hamad Bin Khalifa UniversityDohaQatar Department of Chemistry and Physics Birck Nanotechnology CenterPurdue UniversityWest LafayetteINUSA.

The field of hybrid inorganic–organic framework materials is one of the fastest growing fields in materials science because their enormous structural and chemical diversity presents great opportunities for creating many technologically relevant *** of the most important issues is controlling and tuning the structural,optical,thermal,mechanical and electronic properties of these complex materials by varying their chemistry,fabrication techniques and preparation *** we demonstrate that significant progress in this area may be achieved by introducing structural elements that form hydrogen bonds with the *** hybrid framework materials with different structural ordering containing protonated sulfonium cation H3S+and electronegative halogen anions(I^(−),Br^(−),Cl^(−)and F^(−)),we found that hydrogen bonding increases the structural stability of the material and may be used for tuning electronic states near the *** suggest that such a behaviour has a universal character and should be observed in hybrid inorganic–organic framework materials containing protonated *** effect may serve as a viable route for optoelectronic and photovoltaic applications.

关键词： inorganic bonding electronic

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