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| 1 | Transfer of small chromosome fragments of Agropyron elongatum to wheat chromosome via asymmetric somatic hybridization显示文摘The chromosome constitution of hybrids and chromation patterns of Agropyro-nelelongatum(Host)Neviski in F5 somatic hybrid lines Ⅱ -1-3 and l-1-9 between Triticum aesti-vum L.and A.elongatum were analyzed.Based on the statistic data of pollen omther cells,F5 l-1-9 and Ⅱ-1-3 had 20—21 bivalents with a frequency of 84.66% and 85.28%,of which,89.83% and 89.57% were ring bivalents.The result indicated that both hybrid lines were basically stable in the chromosome constitution and behavior.RAPD analysis showed that the two hybrids contained biparental and integrated DNA.GISH(Genome in situ hybridization)revealed that in the form of small chromosome segments,A.elongatum chromatin was scattered on 4—6 wheat chromo-somes near by the region of centromere and telomere in the two hybrid lines.SSR analysis in-dicated that A.elongatum DAN segments were distributed on the 2A,5B,6B and 2D wheat chromosomes in the hybrids,which was in accordance with the GISH results that small-segments intercalated poly-site. | WANG Jing,XIANG Fengning,XIA Guangmin & CHEN Huimin School of Life Sciences,Shandong University,Jinan 250100,China | 2004 | Science China(Life Sciences)2004，47，5： | 5 |
| 2 | ARR12 promotes de novo shoot regeneration in Arabidopsis thaliana via activation of WUSCHE Lexpression显示文摘Auxin and cytokinin direct cell proliferation and differentiation during the in vitro culture of plant cells, but the molecular basis of these processes, especially de novo shoot regeneration, has not been fully elucidated. Here, we describe the regulatory control of shoot regeneration in Arabidopsis thaliana(L.) Heynh, based on the interaction of ARABIDOPSIS RESPONSE REGULATOR12(ARR12) and WUSCHEL(WUS). The major site of ARR12 expression coincided with the location where the shoot apical meristem(SAM) initiated. The oar12 mutants showed severely impaired shoot regeneration and reduced responsiveness to cytokinin; consistent with this, the overexpression of ARR12 enhanced shoot regeneration.Certain shoot meristem specification genes, notably WUSCHEL(WUS) and CLAVATA3, were significantly downregulated in the arr1z explants. Chromatin immunoprecipitation(ChIP) and transient activation assays demonstrated that ARR12 binds to the promoter of WUS. These observations indicate that during shoot regeneration, in vitro, ARR12 functions as a molecular link between cytokinin signaling and the expression of shoot meristem specification genes. | Xuehuan Dai Zhenhua Liu Meng Qiao Juan Li Shuo Li Fengning Xiang | 2017 | Journal of Integrative Plant Biology2017，59，10： | 3 |
| 3 | Cytosine methylation of the FWA promoter promotes direct in vitro shoot regeneration in Arabidopsis thaliana显示文摘Epigenetic modifications within promoter sequences can act as regulators of gene expression.Shoot regeneration is influenced by both DNA methylation and histone methylation,but the mechanistic basis of this regulation is obscure.Here,we identified 218 genes related to the regeneration capacity of callus that were differentially transcribed between regenerable calli(RC)and non-regenerable calli(NRC)in Arabidopsis thaliana.An analysis of the promoters of five of the differentially expressed genes(FWA,ACC1,TFL1,MAX3,and GRP3)pointed to an inverse relationship between cytosine methylation and transcription.The FWA promoter was demethylated and highly expressed in NRC,whereas it was methylated and expressed at low levels in RC.Explants of the hypomethylation mutants fwa-1 and fwa-2 showed strong levels of FWA expression and regenerated less readily than the wild type,suggesting that FWA inhibits direct in vitro shoot regeneration.WUSCHEL-RELATED HOMEOBOX 9(WOX9),which is required for shoot apical meristem formation,was directly repressed by FWA.Overexpressing WOX9 partly rescued the shoot regeneration defect of fwa-2 plants.These findings suggest that cytosine methylation of the FWA promoter forms part of the regulatory system governing callus regenerability and direct in vitro shoot regeneration. | Xuehuan Dai Jing Wang Yuguang Song Zhenhua Liu Tao Xue Meng Qiao Yanchong Yu Wei Xin Fengning Xiang | 2021 | Journal of Integrative Plant Biology2021，63，8： | 3 |
| 4 | High-speed Nonsingular Terminal Switched Sliding Mode Control of Robot Manipulators显示文摘This paper proposes a high-speed nonsingular terminal switched sliding mode control(HNT-SSMC) strategy for robot manipulators. The proposed approach enhances the control system performance by switching among appropriate sliding mode controllers according to different control demands in different regions of the state space. It is shown that the highspeed nonsingular terminal switched sliding mode(HNT-SSM)which is the representation of different control demands and enforced by the HNT-SSMC has the property of global highspeed convergence compared with the nonsingular fast terminal sliding mode(NFTSM), and provides the global non-singularity.The simulation study of an application example is carried out to validate the effectiveness of the proposed strategy. | Fengning Zhang | 2017 | IEEE/CAA Journal of Automatica Sinica2017，4，4： | 2 |
| 5 | Analysis of diffusion behavior of harmful emissions from trackless rubber-wheel diesel vehicles in underground coal mines显示文摘To define the diffusion behavior of harmful exhaust substances from diesel vehicles and support safety risk assessments of underground coal mines,we performed a multi-species coupling calculation of the emission and diffusion of harmful substances from a trackless rubber-wheel diesel vehicle.A computational fluid dynamics(CFD)model of the diffusion of harmful emissions was hence established and verified.From the perspective of risk analysis,the diffusion behavior and distribution of hazardous substances emitted by the diesel vehicle were studied under 4 different conditions;moreover,we identified areas characterized by hazardous levels of emissions.When the vehicle idled upwind in the roadway,high-risk areas formed behind and to the right of the vehicle:particularly high concentrations of pollutants were measured near the rear floor of the vehicle and within 5 m behind the vehicle.When the vehicle idled downwind,high-risk areas formed in front of it:particularly high concentrations of pollutants were measured near the floor and within 5 m from the front of the vehicle.In the above cases,the driver would not breathe highly polluted air and would be relatively safe.When the vehicle idled into the chamber,however,high-risk areas formed on both sides of the vehicle and near the upper roof.Forward entry of the vehicle caused a greater increase in the concentration of pollutants in the chamber and in the driver’s breathing zone compared with reverse entry. | Yun Hua Wen Nie Qiang Liu Xiaofei Liu Chengyi Liu Weiwei Zhou Fengning Yu | 2022 | International Journal of Mining Science and Technology2022，32，6： | 1 |
| 6 | Effectsofpolyethyleneoxidechainsontheperformanceofpolycarboxylate-typewa-ter-reducers显示文摘 | LiCZ FengN Q LiYD | 2005 | CementandConcreteResearch2005，35，5： | 1 |
| 7 | Afunctionalpolymorphisminpre-miR-146ageneisassociatedwithprostatecancerriskandmaturemiR-146aexpressioninvivo 显示文摘 | XuB FengN H LiPC etal | 2010 | Prostate2010，70，： | 1 |
| 8 | Asymmetric somatic hybridization between wheat (Triticum aestivum L.) and Agropyron elongatum (Host) Nevishi显示文摘 | Guangmin Xia Fengning Xiang Aifen Zhou Huai Wang Huimin Chen | 2003 | Theoretical and Applied Genetics2003，，2： | 1 |
| 9 | Asymmetric somatic hybridization between wheat (Triticum aestivum L.) and Agropyron elongatum (Host) Nevishi显示文摘 | Guangmin Xia Fengning Xiang Aifen Zhou Huai Wang Huimin Chen | 2003 | Theoretical and Applied Genetics2003，，2： | 1 |
| 10 | HBI1-TCP20 interaction positively regulates the CEPs-mediated systemic nitrate acquisition显示文摘Nitrate is the main source of nitrogen for plants but often distributed heterogeneously in soil.Plants have evolved sophisticated strategies to achieve adequate nitrate by modulating the root system architecture. The nitrate acquisition system is triggered by the short mobile peptides C-TERMINALLY ENCODED PEPTIDES(CEPs)that are synthesized on the nitrate-starved roots,but induce the expression of nitrate transporters on the other nitrate-rich roots through an unclear signal transduction pathway. Here,we demonstrate that the transcription factors HBI1 and TCP20 play important roles in plant growth and development in response to fluctuating nitrate supply. HBI1 physically interacts with TCP20, and this interaction was enhanced by the nitrate starvation. HBI1 and TCP20 directly bind to the promoters of CEPs and cooperatively induce their expression. Mutation in HBIs and/or TCP20 resulted in impaired systemic nitrate acquisition response. Our solid genetic and molecular evidence strongly indicate that the HBI1-TCP20 module positively regulates the CEPs-mediated systemic nitrate acquisition. | Xiaoqian Chu Mingzhe Li Shujuan Zhang Min Fan Chao Han Fengning Xiang Genying Li Yong Wang Cheng‐Bin Xiang Jia‐Gang Wang Ming‐Yi Bai | 2021 | Journal of Integrative Plant Biology2021，63，5： | 1 |
| 11 | Agropyron elongatum chromatin localization on the wheat chromosomes in an introgression line显示文摘 | Jing Wang Fengning Xiang Guangmin Xia | 2005 | Planta2005，，2： | 1 |
| 12 | Asymmetric somatic hybridization between wheat (Triticum aestivum L.) and Agropyron elongatum (Host) Nevishi显示文摘 | Guangmin Xia Fengning Xiang Aifen Zhou Huai Wang Huimin Chen | 2003 | Theoretical and Applied Genetics2003，，2： | 1 |
| 13 | Spatiotemporal Evolution Characteristics of Urban Land Surface Temperature Based on Local Climate Zones in Xi’an Metropolitan,China显示文摘Local climate zones(LCZs)are an effective nexus linking internal urban structures to the local climate and have been widely used to study urban thermal environment.However,few studies considered how much the temperature changed due to LCZs transformation and their synergy.This paper quantified the change of urban land surface temperature(LST)in LCZs transformation process by combining the land use transfer matrix with zonal statistics method during 2000–2019 in the Xi’an metropolitan.The results show that,firstly,both LCZs and LST had significant spatiotemporal variations and synchrony.The period when the most LCZs were converted was also the LST rose the fastest,and the spatial growth of the LST coincided with the spatial expansion of the built type LCZs.Secondly,the LST difference between land cover type LCZs and built type LCZs gradually widened.And LST rose more in both built type LCZs transferred in and out.Finally,the Xi’an-Xianyang profile showed that the maximum temperature difference between the peaks and valleys of the LST increased by 4.39℃,indicating that localized high temperature phenomena and fluctuations in the urban thermal environment became more pronounced from 2000 to 2019. | ZHANG Liping ZHOU Liang YUAN Bo HU Fengning ZHANG Qian WEI Wei SUN Dongqi | 2023 | Chinese Geographical Science2023，33，6： | 0 |
| 14 | Research on Development Models of Ocean Recreational Fishery in Shandong Province显示文摘Developing recreational fishery is the main way to promote the fisherman transferring their jobs,to enhance their incomes,and to promote the development of the fishing village. The development models of ocean recreational fishery of Shandong province were given. According to the development of recreational fishery and management models,the development modes of recreational fisheries can be divided as: individual operation mode,fishermen association mode,the company and fishermen joint venture mode,the government leading mode and enterprises synergetic mode. The new direction of recreational fishery was pointed out at last. | Zhiwen DONG Fengning WU | 2013 | Asian Agricultural Research2013，5，6： | 0 |
| 15 | Psychological and Emotional Responses during Different Stages of the COVID-19 Pandemic Based on a Survey of a Mental Health Hotline显示文摘Background:The coronavirus(COVID-19)outbreak in 2019 triggered psychological and emotional responses.This research investigates the psychological status and emotional problems of those who sought psychological assistance during the epidemic period by calling a mental health hotline.Methods:This study aims to combine qualitative and quantitative research.Descriptive analysis was used for undertaking qualitative research.We ana-lyzed the data from group 1(n=706),in which the people used the mental health hotline from 25 January 2020 to 23 June 2020.A self-designed questionnaire was developed in accordance with the classification and sum-marized items from group 1’s psychological problems and emotional status.To implement the quantitative research,we conducted a cross-sectional descriptive survey and used the self-compiled scale and HADS to inves-tigate group 2(n=553)from May 2020 to June 2020.Results:Descriptive statistics and comparative analysis revealed that:①Visitors mainly reported behavior,emotional,family relationship problems and sleep disorders.②Anxiety,comorbidities,sleep disorders and coping problems were the most frequently reported problems.③There were significant differences in the number of visitors experiencing various problems or exhibiting harmful behaviors(sorrow,worry,fear,depression,sleep disorders,self-harm or suicide,and coping problems,anxiety,hypochondria,and comorbidity)in the four stages of the epidemic.④More than a quarter of participants still suffered from anxiety or depression in the later stages of the epidemic.Conclusion:Different problems manifested at different stages of the epidemic,and psychological interventions and assistance should be tailored to reflect this. | Shuna Peng Xiaohong Luo Shiyu Liang Fengning Deng Yuning Liu Hong Zeng Xuesong Yang | 2022 | International Journal of Mental Health Promotion2022，24，5： | 0 |
| 16 | The wrinkle formation in graphene on transition metal substrate:a molecular dynamics study显示文摘To explore the mechanism of the wrinkle formation in graphene on transition metal substrate,a molecular dynamics(MD)simulation package that allows us to simulate systems of millions of atoms was developed.Via the MD simulation,we reveal the detailed kinetics of wrinkles formation on a Cu substrate under compressive strain,from nucleation to one-dimensional propagation and then the splitting of a large wrinkle to a few smaller ones,which is in good conformity with experimental observation.Further study reveals that both friction and the adhesion between graphene and Cu substrate are critical for the wrinkle formation and wrinkles can be easily formed with a lower frictional force and/or a smaller adhesion.Finally,we have shown that impurities in graphene or substrates can greatly facilitate the nucleation of wrinkles.The systematic exploration of the wrinkle formation in graphene on a substrate is expected to facilitate the experimental designs for the controllable synthesis of high-quality graphene. | Chao Zhao Fengning Liu Xiao Kong Tianying Yan Feng Ding | 2020 | International Journal of Smart and Nano Materials2020，11，3： | 0 |
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