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15篇 您的检索式:作者名="Jinfang Liang"
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1A Possible Dynamic Mechanism for Rapid Production of the Extreme Hourly Rainfall in Zhengzhou City on 20 July 2021显示文摘In this study,the unprecedented extreme rainfall event during 19-20 July 2021,which caused devastating flooding in Zhengzhou City and its nearby areas,is examined based on observational data analysis and WRF model 40-h simulations on 1-km horizontal resolution.The results show that the model successfully reproduces(i)major synopticscale weather systems(i.e.,the western Pacific subtropical high,the Tibetan high,two typhoons,and the Huang-Huai cyclone),(ii)convective initiation along the east to north edge of the Songshan Mountain,where orographic lifting is obvious,and(iii)subsequent formation of the convective storm producing the extreme rainfall in Zhengzhou.In particular,the model generates the maximum rainfall rate of 233 mm h^(-1)and 40-h accumulated rainfall of 704 mm,corresponding well to the observed extreme values of 201.9 mm h^(-1)and 818 mm,at nearly observed timing and location.Importantly,the model reproduces an intense quasi-stationary,well-organized meso-γ-scale convective system,surrounded by an arc-shaped convergence zone,allowing the development of convective updrafts in a three-quarter circle around the convective system,in a way similar to“multidirectional pumping,”attracting all associated precipitation overlaid and concentrated into the same trailing region to generate the extreme hourly rainfall over Zhengzhou.Our study emphasizes the significant contribution of the unique dynamic structure of the well-organized meso-γ-scale convective system to the record-high hourly rainfall.A possible dynamic mechanism for short-time extreme rainfall production is proposed.That is,the arc-shaped convergence zone of the mesoscale convective system,acting like multidirectional lifting pumps,transports precipitation from different directions into the same region,and thus produces the extreme rainfall.The results gained herein may shed new light on better understanding and forecasting of short-time extreme rainfall.Jinfang YIN Haodong GU Xudong LIANG Miao YU Jisong SUN Yanxin XIE Feng LI Chong WU 2022Journal of Meteorological Research2022,36,1:17
2ζ-Carotene Isomerase Suppresses Tillering in Rice through the Coordinated Biosynthesis of Strigolactone and Abscisic Acid显示文摘Rice tillering is an important agronomic trait affecting grain yield.Here,we identified a high-tillering mutant tillering20(t20),which could be restored to the wild type by treatment with the strigolactone(SL)analog rac-GR24.T20 encodes a chloroplast ζ-carotene isomerase(Z-ISO),which is involved in the biosynthesis of ca-rotenoids and their metabolites,SL and abscisic acid(ABA).The t20 mutant has reduced SL and ABA,raising the question of how SL and ABA biosynthesis is coordinated,and whether they have overlapping functions in tillering.We discovered that rac-GR24 stimulated T20 expression and enhanced all-trans-p-carotene biosynthesis.Importantly,rac-GR24 also stimulated expression of Oryza sativa 9-CIS-EPOXY-CAROTENOID DIOXYGENASE 1(OsNCED1)through induction of Oryza sativa HOMEOBOX12(0sHOX12),promoting ABA biosynthesis in shoot base.On the other hand,ABA treatment significantly repressed SL biosynthesis and the ABA biosynthetic mutants displayed elevated SL biosynthesis.ABA treatment reduced the number of basal tillers in both t20 and wild-type plants.Furthermore,while ABA-deficient mu-tants aba1 and aba2 had the same number of basal tillers as wild type,they had more unproductive upper tillers at maturity.This work demonstrates complex interactions in the biosynthesis of carotenoid,SLs and ABA,and reveals a role for ABA in the regulation of rice tillering.Xue Liu Qingliang Hu Jijun Yan Kai Sun Yan Liang Meiru Jia Xiangbing Meng Shuang Fang Yiqin Wang Yanhui Jing Guifu Liu Dianxing Wu Chengcai Chu Steven M.Smith Jinfang Chu Yonghong Wang Jiayang Li Bing Wang 2020Molecular Plant2020,13,12:11
3Investigation into the Formation, Structure, and Evolution of an EF4 Tornado in East China Using a High-Resolution Numerical Simulation显示文摘Devastating tornadoes in China have received growing attention in recent years, but little is known about their formation, structure, and evolution on the tornadic scale. Most of these tornadoes develop within the East Asian monsoon regime, in an environment quite different from tornadoes in the U.S. In this study, we used an idealized, highresolution(25-m grid spacing) numerical simulation to investigate the deadly EF4(Enhanced Fujita scale category 4)tornado that occurred on 23 June 2016 and claimed 99 lives in Yancheng, Jiangsu Province. A tornadic supercell developed in the simulation that had striking similarities to radar observations. The violent tornado in Funing County was reproduced, exceeding EF4(74 ms–1), consistent with the on-site damage survey. It was accompanied by a funnel cloud that extended to the surface, and exhibited a double-helix vorticity structure. The signal of tornado genesis was found first at the cloud base in the pressure perturbation field, and then developed both upward and downward in terms of maximum vertical velocity overlapping with the intense vertical vorticity centers. The tornado's demise was found to accompany strong downdrafts overlapping with the intense vorticity centers. One of the interesting findings of this work is that a violent surface vortex was able to be generated and maintained, even though the simulation employed a free-slip lower boundary condition. The success of this simulation, despite using an idealized numerical approach, provides a means to investigate more historical tornadoes in China.Dan YAO Haile XUE Jinfang YIN Jisong SUN Xudong LIANG Jianping GUO 2018Journal of Meteorological Research2018,32,2:10
4On the Influences of Urbanization on the Extreme Rainfall over Zhengzhou on 20 July 2021: A Convection-Permitting Ensemble Modeling Study显示文摘This study investigates the influences of urban land cover on the extreme rainfall event over the Zhengzhou city in central China on 20 July 2021 using the Weather Research and Forecasting model at a convection-permitting scale[1-km resolution in the innermost domain(d3)].Two ensembles of simulation(CTRL,NURB),each consisting of 11 members with a multi-layer urban canopy model and various combinations of physics schemes,were conducted using different land cover scenarios:(i)the real urban land cover,(ii)all cities in d3 being replaced with natural land cover.The results suggest that CTRL reasonably reproduces the spatiotemporal evolution of rainstorms and the 24-h rainfall accumulation over the key region,although the maximum hourly rainfall is underestimated and displaced to the west or southwest by most members.The ensemble mean 24-h rainfall accumulation over the key region of heavy rainfall is reduced by 13%,and the maximum hourly rainfall simulated by each member is reduced by 15–70 mm in CTRL relative to NURB.The reduction in the simulated rainfall by urbanization is closely associated with numerous cities/towns to the south,southeast,and east of Zhengzhou.Their heating effects jointly lead to formation of anomalous upward motions in and above the planetary boundary layer(PBL),which exaggerates the PBL drying effect due to reduced evapotranspiration and also enhances the wind stilling effect due to increased surface friction in urban areas.As a result,the lateral inflows of moisture and high-θe(equivalent potential temperature)air from south and east to Zhengzhou are reduced.Yali LUO Jiahua ZHANG Miao YU Xudong LIANG Rudi XIA Yanyu GAO Xiaoyu GAO Jinfang YIN 2023Advances in Atmospheric Sciences2023,40,3:4
5Low phosphorus promotes NSP1–NSP2 heterodimerization to enhance strigolactone biosynthesis and regulate shoot and root architecture in rice显示文摘Phosphorus is an essential macronutrient for plant development and metabolism,and plants have evolved ingenious mechanisms to overcome phosphate(Pi)starvation.However,the molecular mechanisms underlying the regulation of shoot and root architecture by low phosphorus conditions and the coordinated utilization of Pi and nitrogen remain largely unclear.Here,we show that Nodulation Signaling Pathway 1(NSP1)and NSP2 regulate rice tiller number by promoting the biosynthesis of strigolactones(SLs),a class of phytohormones with fundamental effects on plant architecture and environmental responses.We found that NSP1 and NSP2 are induced by Oryza sativa PHOSPHATE STARVATION RESPONSE2(OsPHR2)in response to low-Pi stress and form a complex to directly bind the promoters of SL biosynthesis genes,thus markedly increasing SL biosynthesis in rice.Interestingly,the NSP1/2–SL signaling module represses the expression of CROWN ROOTLESS 1(CRL1),a newly identified early SL-responsive gene in roots,to restrain lateral root density under Pi deficiency.We also demonstrated that GR24^(4DO) treatment under normal conditions inhibits the expression of OsNRTs and OsAMTs to suppress nitrogen absorption but enhances the expression of OsPTs to promote Pi absorption,thus facilitating the balance between nitrogen and phosphorus uptake in rice.Importantly,we found that NSP1p:NSP1 and NSP2p:NSP2 transgenic plants show improved agronomic traits and grain yield under low-and medium-phosphorus conditions.Taken together,these results revealed a novel regulatory mechanism of SL biosynthesis and signaling in response to Pi starvation,providing genetic resources for improving plant architecture and nutrient-use efficiency in low-Pi environments.Kun Yuan Hao Zhang Chaoji Yu Nan Luo Jijun Yan Shuang Zheng Qingliang Hu Dahan Zhang Liquan Kou Xiangbing Meng Yanhui Jing Mingjiang Chen Xinwei Ban Zongyun Yan Zefu Lu Jian Wu Yu Zhao Yan Liang Yonghong Wang Guosheng Xiong Jinfang Chu Ertao Wang Jiayang Li Bing Wang 2023Molecular Plant2023,16,11:2
6Heel Reconstruction 显示文摘Jinfang Cai Xuecheng Cao Jin Liang 1997Plast Reconstr Surg1997,99,2:1
7Rapid UPLC-MS/MS method for the determination of sufentanil in human plasmaand its application in target-controlled infusion system 显示文摘Lili Liang Shanhe Wan Jinfang Xiao 2011Journalof Pharmaceutical and Biomedical Analysis2011,,54:1
8Application of near-infrared spectroscopy for the rapid analysis of Lonicerae Japonicae Flos solution extracted by water显示文摘A rapid quantitative analytical method for three components of Lonicerae Japornicae Flos solution(Lonicera Japonica Thumb.)extracted by water was developed using near-infrared(NIR)spectroscopy and the partial least-squares(PLS)method.The NIR spectra of 81 samples collected from a production line were obtained.The concentrations of secologanic acid,chlorogenicacid and galuteolin were detemmined by using high-performance liquid chromatography-diodearray detection as the reference method.Several pretreatment methods for the NIR spectra wereusedi during PLS calibration.The most appropriate latent variable number of the PLS factor wasselected based on the standard error of cross-validation(SECV).The performance of the finalPLS models was evaluated according to SECV,standard error of predliction(SEP)and deter-mination coeficient(R^(2)).The compounds secologanic acid,chlorogenic acid and galuteolin hadSEP values of 0.030,0.061 and 1.668μg/mL,respectively and R^(2) values over 0.85.This workshows that NIR spectroscopy is a rapid and convenient method for the analysis of LoniceraeJaponicae Flos solution extracted by water.The proposed method can help in the application ofprocs analytical technology in the pha maceutical industry,particularly in tra ditional Chinesemedicine injections.Xue Xiao Jinfang Ma Fahuan Ge Xiangdong Zhang Huihua Yang Qionghin Liang Yiming Wang Guoan Luo 2014Journal of Innovative Optical Health Sciences2014,7,4:1
9Effects of NaAlO 2 on structure and corrosion resistance of microarc oxidation coatings formed on AM60B magnesium alloy in phosphate–KOH electrolyte显示文摘Jun Liang Baogang Guo Jun Tian Huiwen Liu Jinfang Zhou Weimin Liu Tao Xu 2005Surface & Coatings Technology2005,,2:1
10Effect of potassium fluoride in electrolytic solution on the structure and properties of microarc oxidation coatings on magnesium alloy显示文摘Jun Liang Baogang Guo Jun Tian Huiwen Liu Jinfang Zhou Tao Xu 2005Applied Surface Science2005,,2:1
11Recent Advances,Problems and Outlooks in Rapeseed(Brassica napus L.)Breeding in China显示文摘As a big rapeseed(Brassica napus L.) producing and consuming country, China provides more and more rapeseed oil year by year. With the development of demand for rapeseed and import of edible oil, rapeseed breeding and production is facing a great challenge. New situation has proposed higher requirements to yield, oil quality and safety, etc. In the review, some aspects about rapeseed breeding in China were reported, including breeding of high-oil content rapeseed, breeding of extremely early-maturing rapeseed, development of mechanization and development of chemical emasculation. Some prospects and expectations were also proposed.Liang CHAI Haojie Li Benchuan ZHENG Jinfang ZHANG Cheng CUI Jun JIANG Bi ZHANG Liangcai JIANG Lintao WU Jiang KE 2017Agricultural Science & Technology2017,18,12:0
12Global and Comparative Proteome Analysis of Nitrogen-Stress Responsive Proteins in the Root, Stem and Leaf of Brassica napus显示文摘Nitrogen(N)is one of the basic nutrients and signals for plant development and deficiency of it would always limit the productions of crops in the field.Quantitative research on expression of N-stress responsive proteins on a proteome level remains elusive.In order to gain a deep insight into the proteins responding to nitrogen stress in rapeseed(Brassica napus L.),comparative proteomic analysis was performed to investigate changes of protein expression profiles from the root,stem and leaf under different N concentrations,respectively.More than 200 differential abundance proteins(DAPs)were detected and categorized into groups according to annotations,including“binding and catalytic activity”,“involved in primary metabolism and cellular processes”,“stress-response”and so on.Variation in chlorophyll(Chl)content and antioxidant activities further revealed that oxidative stress raised with the increase of N concentration.Bioinformatics analysis based on the expression level of total proteins suggested these DAPs might play important roles in adaptation to N-stress conditions.Generally,these results provides a new aspect into N-stress responding proteins in Brassica plants.Liang Chai Cheng Cui Benchuan Zheng Jinfang Zhang Jun Jiang Haojie Li Liangcai Jiang 2023Phyton-International Journal of Experimental Botany2023,92,3:0
13Soybeanβ-conglycinin and glycinin reduced growth performance and the intestinal immune defense and altered microbiome in juvenile pearl gentian groupers Epinephelus fuscoguttatus♀×Epinephelus lanceolatus♂显示文摘The utilization efficiency of soy protein is affected by its 2 anti-nutritional substancesdthe antigens bconglycinin and glycinin.This study investigated their effects on the growth performance,intestinal immune defense,andmicrobiome in juvenile pearl gentian groupers(Epinephelus fuscoguttatus♀×Epinephelus lanceolatus♂).Three isonitrogenous and isolipidic diets were formulated containing fishmeal supplemented with 70 g/kgβ-conglycinin or 100 g/kg glycinin,or no supplementation(control).Each experimental diet was fed to quadruplicate groups with 30 fish in each tank for 8 weeks.Dietary inclusion of eitherβ-conglycinin or glycinin significantly reduced weight gain and specific growth rates,and cell proliferation of the distal intestine.Histological evaluation of the intestine tract revealed the inflammation signs,characterized by reducing of plica height and width as well as the number of the goblet cells,and widening of the lamina propria.The group fed theβ-conglycinin diet had reduced lysozyme activity,contents of immunoglobulin M and complements 3 and 4.Increased activities of caspase-3 and-9 were observed in the group fed the bconglycinin diet compared to the other 2 groups.In the intestinal microbiota,the relative abundances of the potentially pathogenic genera Photobacterium and Vibrio were significantly higher in the glycinin group than those in others.Therefore,the existence of soybean antigens(β-conglycinin or glycinin)could damage the structural integrity of the intestine,reduce immune defense,reshape the intestinal microbiome and,ultimately,impair growth in fish.Yuanfa He Jinfang Liang Xiaohui Dong Hongyu Liu Qihui Yang Shuang Zhang Shuyan Chi Beiping Tan 2022Animal Nutrition2022,,2:0
14抑癌基因PTEN突变在软组织肉瘤中的研究(英文)显示文摘Objective: This study was to investigate whether PTEN mutations play a role in the carcinogenesis of soft tissue sarcomas (STS). Methods: Polymerase chain reaction-single strand conformation polymorphism (PCR-SSCP) was used to amplify 4 exons of PTEN and to analyze the conformation polymorphism, then DNA sequencing methods was used to detect point mutation of PTEN gene four exons of abnormal single strand conformation in soft tissue sarcomas. Results: Two of 86 cases showed 130th condon G→A missense mutation in the exon 8 of PTEN gene, and this mutation made Arg to change to Gln in PTEN protein structure 334th condon A→T missense mutation in the exon 8 of PTEN gene , and this mutation made Asn to change to Lys in PTEN protein structure. Conclusion: These data indicated the existence of PTEN mutation in soft tissue sarcomas , but PTEN gene mutation rate is very low. PTEN mutation may plays an less important role in the development and malignant transformation of soft tissue sarcomas.Liang Yin Yunzhao chen Wenting Li Benlin Hua Jinfang Jiang Hongan Li Feng Li 2010The Chinese-German Journal of Clinical Oncology2010,9,7:0
15Genome-wide identification and expression profiling of the YUCCA gene family in Brassica napus显示文摘Auxin is essential for plant growth and development,also closely related to plant architecture.YUCCA(YUC)proteins catalyse the rate-limiting step for endogenous auxin biosynthesis.In this study,we identified 57 Bn YUC genes in Brassica napus(rapeseed)genome,located on 17 chromosomes.Among them,A09 chromosome contained the most Bn YUCs as 6.Phylogenetic tree showed that all Bn YUC members were divided into 2 evolutionary clusters,including 7 sub-groups.Among the sub-groups,Clade I-C consisted 20 members,evolved independently from Arabidopsis thaliana,and motif 10 was unique.Genomic collinearity analysis showed that YUC collinear gene pairs widely existed in Brassica species,indicating that this family has a high retention rate in the evolution.Expression profile suggested that the Bn YUC family genes tended to express in specific growth/development stages as well as suffering stress/hormone treatments.It suggested that dominant expression of specific members existed with each development stage or treatment,indicating that each Bn YUC might have a clear division of work,and play a given biological function.This work was expected to build a basis for further study of the involvement of Bn YUC in growth,development and stress response.Ka Zhang Jinfang Zhang Cheng Cui Liang Chai Benchuan Zheng Jun Jiang Haojie Li Jinxing Tu 2022Oil Crop Science2022,7,3:0
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