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| 1 | ELE restrains empty glumes from developing into lemmas显示文摘Although there is evident homology among reproductive organs when comparing Poaceae (grass) and eudicots, the identity of grass specific organs, such as lodicules, palea, lemma, and glumes has been the subject of a vast and largely inconclusive discussion. Here we provide some direct evidence to support the idea that the empty glumes of rice (Oryza sativa) are counterparts of lemmas. We show that the development of empty glumes is regulated by ELE (elongated empty glume), which belongs to a plant specific novel gene family. Mutations at the ELE locus cause elongated empty glumes, which mimic the lemmas and have the epidermal morphology of lemmas with four or five vascular bundles. As a nuclear-localized gene, ELE is specifically expressed at the empty glumes of immature spikelets, and its ectopic expression causes many floral development defects, including lemma-like palea, extra palea-like structures, elongated lodicules, extra stamens and stigmas. Our result suggests that empty glumes are lemmas of the sterile florets located at the lateral side of the rice spikelet, and ELE acts as a regulator restraining its growth to maintain its small size in wild-type plants. | Lilan Hong Qian Qian Keming Zhu Ding Tang Zejun Huang Ling Gao Ming Li Minghong Gu Zhukuan Cheng | 2010 | Journal of Genetics and Genomics2010，37，2： | 11 |
| 2 | Design and Performance of an Improved Trapped Vortex Combustor显示文摘A trapped vortex combustor (TVC) has been a very promising novel concept for it offers improvements in lean blow out, altitude relight, operating range, as well as a potential to decrease NOx emissions compared to conventional combustors. The present paper discusses the improved designs of the new combustor over the prior ones of our research group, including that:a) the over-all dimensions, both axial and radial, are reduced to those of an actual aero-engine combustor; b) the air flow distribution is optimized, and especially 15% of the air is fed into the liner as cooling air; c) a straight-wall diffuser with divergence angle 9°is added. A series of experiments (cavity-fueled only, under atmospheric pressure) has been conducted to investigate the performance of the improved TVC. Experimental results show that at the inlet temperature of 523 K, the inlet pressure of 0.1 MPa, stable operation of the TVC test rig is observed for the Mach number 0.15-0.34, indicating good flame stability; the combustion efficiency obtained in this paper falls into the range of 60%-96%; as the total excess air ratio increases, the combustion efficiency decreases, while the increase of the inlet temperature is beneficial to high combustion efficiency; besides, the optimal Mach numbers for high combustion efficiency under different inlet conditions are confirmed. The outlet temperature profiles feature a bottom in the midheight of the exit. This paper demonstrates the feasibility for the TVC to be applied to a realistic aero-engine preliminarily and provides reference for TVC design. | JIN Yi HE Xiaomin JIANG Bo WU Zejun DING Guoyu | 2012 | Chinese Journal of Aeronautics2012，25，6： | 8 |
| 3 | Characterization and Fine Mapping of the ibf Mutant in Rice显示文摘颜料是在植物开发的一个重要字符。在现在的学习,我们在米饭(Oryzasativa L.) 为棕色的沟基因(ibf ) 描绘了,罚款印射一个禁止者。在 ibf 异种,当种子成熟并且在干燥种子到达最大的水平,棕色的颜料明确地在壳的沟积累。Geneticanalysis 证明变异的显型被一后退的核基因控制,它最后长在 90-kb 区域在被印射染色体 9 的手臂。聚合酶链反应和在在异种的 90-kb 区域有 26 kb 删除的南部的弄污 anaiysisrevealed。自从所有,在限定的区域的开的读物 framesoutsidethe 差距没与 thewild 类型在脱氧核糖核酸顺序有可检测的差别,我们要求了 ibf 地点应该位于差距。通过基因注解和颠倒,抄写聚合酶锁住反应(RT-PCR ) 分析,我们选择了编码 akelch 的 OsKF1 包含重复的 F 盒子家庭蛋白质作为 ibf 的候选人基因。 | Jiajun Cui Shengci Fan Tian Shao Zejun Huang Dali Zheng Ding Tang Ming Li Qian Qian Zhukuan Cheng | 2007 | Journal of Integrative Plant Biology2007，49，5： | 7 |
| 4 | Nasal delivery of broadly neutralizing antibodies protects mice from lethal challenge with SARS-CoV-2 delta and omicron variants显示文摘Multiple new variants of severe acute respiratory syndrome coronavirus 2(SARS-Co V-2)have constantly emerged,as the delta and omicron variants,which have developed resistance to currently gained neutralizing antibodies.This highlights a critical need to discover new therapeutic agents to overcome the variants mutations.Despite the availability of vaccines against coronavirus disease 2019(COVID-19),the use of broadly neutralizing antibodies has been considered as an alternative way for the prevention or treatment of SARS-Co V-2 variants infection.Here,we show that the nasal delivery of two previously characterized broadly neutralizing antibodies(F61 and H121)protected K18-h ACE2 mice against lethal challenge with SARS-Co V-2 variants.The broadly protective efficacy of the F61 or F61/F121 cocktail antibodies was evaluated by lethal challenge with the wild strain(WIV04)and multiple variants,including beta(B.1.351),delta(B.1.617.2),and omicron(B.1.1.529)at 200or 1000 TCID_(50),and the minimum antibody administration doses(5-1.25 mg/kg body weight)were also evaluated with delta and omicron challenge.Fully prophylactic protections were found in all challenged groups with both F61 and F61/H121 combination at the administration dose of 20 mg/kg body weight,and corresponding mice lung viral RNA showed negative,with almost all alveolar septa and cavities remaining normal.Furthermore,low-dose antibody treatment induced significant prophylactic protection against lethal challenge with delta and omicron variants,whereas the F61/H121 combination showed excellent results against omicron infection.Our findings indicated the potential use of broadly neutralizing monoclonal antibodies as prophylactic and therapeutic agent for protection of current emerged SARS-Co V-2 variants infection. | Jia Lu Qiangling Yin Rongjuan Pei Qiu Zhang Yuanyuan Qu Yongbing Pan Lina Sun Ding Gao Cuiqin Liang Jingwen Yang Wei Wu Jiandong Li Zongqiang Cui Zejun Wang Xinguo Li Dexin Li Shiwen Wang Kai Duan Wuxiang Guan Mifang Liang Xiaoming Yang | 2022 | Virologica Sinica2022，37，2： | 4 |
| 5 | Preparation and Characterization of Co_(3)O_(4)/Graphene/Cellulose Nanofiber Composite Films显示文摘Nanocellulose has served as an eye-catching nanomaterial for constructing advanced functional devices with renewability,light weight,flexibility,and environmental friendliness.In this study,Co_(3)O_(4)/graphene/cellulose nanofiber(CNF)flexible composite films,in which the CNF acted as a spacer for the graphene,were prepared via a facile and scalable vacuum filtration method.The effects of the CNF on the microstructure,hydrophilicity,thermal stability,tensile strength,surface resistance,and electrochemical performance of the Co_(3)O_(4)/graphene/CNF composite films were systematically investigated.The results showed that the synergistic interaction of the CNF and graphene substantially improved the overall properties of the Co_(3)O_(4)/graphene/CNF composite films,particularly their hydrophilicity and tensile strength.Meanwhile,Co_(3)O_(4)/graphene/CNF composite films with a CNF content of 4%appeared to have the optimal electrochemical performance,with an area specific capacitance of 56 mF/cm^(2) and prominent capacitance retention of 95.6%at a current density of 1 A/g after 1000 cycles.This work demonstrated that the prepared Co_(3)O_(4)/graphene/CNF flexible composite films have great application potential in the field of flexible energy storage devices. | Zejun Ding Tianying Chen Yiming Zhou Peng Zhu Feiyun Li Yanjun Tang | 2022 | Paper And Biomaterials2022，7，2： | 2 |
| 6 | Multifractal behavior of the distribution of secondary electron emission sites on solid surfaces显示文摘 | Li Hua Ding Zejun Wu Ziqin | | 0，，19： | 1 |
| 7 | VscO, a Putative T3SS Chaperone Escort of Vibrio A lginolyticus, Contributes to Virulence in Fish and is a Target for Vaccine Development显示文摘 | Z HOU Zejun PANG H uanying DING Yu | 2013 | Fish and Shellfish Immunology2013，35，5： | 1 |
| 8 | A Monte Carlo simulation study on the image resolution in scanning electron microscopy显示文摘 | Mao Shifeng Ding Zejun | 2010 | Surface Interface Analysis2010，42，67： | 1 |
| 9 | Hardware Circuit Implementation and Performance Analysis of Three-Slot NP-CSMA显示文摘The development of wireless communication technology has become increasingly important in the communications industry.How to allocate limited channel resources reasonably and reliably to each competing user is a problem that the access protocol of the MAC(Multiple Access Control)layer needs to solve.As an important way of random access,NP-CSMA(Non Persistent Carrier Sense Multiple Access)has a higher network throughput rate when the arrival rate is higher.This paper analyzes and improves the implemented NP-CSMA model,and obtains a three-slot NP-CSMA model.The mathematical tool MATLAB is used to analyze the network throughput,delay and energy efficiency of the model,and compare several random multiple access protocols adheres to the network throughput,they are NP-CSMA,Three-slot NP-CSMA,1-persistent CSMA,P-persistent CSMA,and concludes that the three-slot NP-CSMA is significantly letter than several other multiple access protocols.Finally,using Quartus to design the three-slot NP-CSMA circuit,the statistical value of the circuit system is compared with the theoretical value of the model,and the error is less than 0.01,which proves that the system is reasonable in design and can be applied to wireless communication networks. | Xu Lu Hongwei Ding Zejun Han Zhijun Yang Liqing Wang Liyong Bao | 2019 | Computer Modeling in Engineering & Sciences2019，，6： | 0 |
| 10 | Construction of Live Attenuated Vaccine against Vib- rio alginolyticus and the Evaluation on Its Immuno- protection Effect显示文摘Vibrio alginolyticus,a gram-negative bacterium has been described to be one of the most common and economically important aquatic pathogens of fish and shellfish. Vaccine immunization is an effective approach preventing V. alginolyticus infection. Attenuated vaccine stimulates systemic immune response in the host,but few attenuated vaccine against V. alginolyticus is available. The type III secretion system( T3SS),an important pathogenic factor of V. alginolyticus,is used by bacterial pathogens to inject effector proteins into the cytoplasm of their host cells. The T3 SS forms a structure called needle complex with a multi-ring base that spans the bacteria and a needle-like extension that protrudes several nanometers from the bacterial surface. vscO locates at the ' needle' site of T3 SS,playing the role of escorting the molecular chaperone and effector proteins into host cells and further inducing the death of host cells. In this paper,an in-frame deletion mutant of vscO was constructed using overlap PCR and homologous recombination technology combining with chloramphenicol( Cm) and sucrose screening. The LD50 changes of ZJ03ΔvscO mutant strains compared with the strain ZJ03 were examined in grouper( Epinephelus coioides). The ZJ03ΔvscO mutant showed about 150 times decrease in virulence in E. coioides compared with wide type ZJ03. After vaccination with ZJ03ΔvscO in E. coioides through injection and immersion,the specific antibody titers were markedly higher than that in the saline control group( P < 0. 05). The titers of injection and immersion group on the forth week reached the maximums at 1∶ 2 048 and 1∶ 128,respectively. The relative percentage survival( RPS) of injection group was 84%,while that in immersion group was 68%.These results indicate that the ZJ03ΔvscO of V. alginolyticus has a high immunogenicity,and can be used as live attenuated vaccine. In addition,RPS may be affected by vaccination and infection methods. This study can provide technical support for controlling fish diseases caused by V. alginolyticus. | Yuan Yonghong Pang Huanying Zhou Zejun Song Dawei Ding Yu Jian Jichang Wu Zaohe | 2016 | Animal Husbandry and Feed Science2016，8，2： | 0 |
| 11 | Maternal-derived antibodies hinder the antibody response to H9N2 AIV inactivated vaccine in the field显示文摘The H9N2 subtype avian influenza virus(AIV)inactivated vaccine has been used extensively in poultry farms,but it often fails to stimulate a sufficiently high immune response in poultry in the field,although it works well in laboratory experiments;hence,the virus still causes economic damage every year and poses a potential threat to public health.Based on surveillance data collected in the field,we found that broilers with high levels of maternal-derived antibodies(MDAs)against H9N2 virus did not produce high levels of antibodies after vaccination with a commercial H9N2 inactivated vaccine.In contrast,specific pathogen-free(SPF)chickens without MDAs responded efficiently to that vaccination.When MDAs were mimicked by administering passively transferred antibodies(PTAs)into SPF chickens in the laboratory,similar results were observed:H9N2-specific PTAs inhibited humoral immunity against the H9N2 inactivated vaccine,suggesting that H9N2-specific MDAs might hinder the generation of antibodies when H9N2 inactivated vaccine was used.After challenge with homologous H9N2 virus,the virus was detected in oropharyngeal swabs of the vaccinated and unvaccinated chickens with PTAs but not in the vaccinated chickens without PTAs,indicating that H9N2-specific MDAs were indeed one of the reasons for H9N2 inactivated vaccine failure in the field.When different titers of PTAs were used to mimic MDAs in SPF chickens,high(HI=12 log2)and medium(HI=log 9 log2)titers of PTAs reduced the generation of H9N2-specific antibodies after the first vaccination,but a booster dose would induce a high and faster humoral immune response even of PTA interference.This study strongly suggested that high or medium titers of MDAs might explain H9N2 inactivated vaccine failure in the field. | Xue Pan Xin Su Pingyun Ding Jinhua Zhao Hongrui Cui Dawei Yan Qiaoyang Teng Xuesong Li Nancy Beerens Haitao Zhang Qinfang Liu Mart C.M.de Jong Zejun Li | 2022 | Animal Diseases2022，2，2： | 0 |
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