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| 1 | Statistical analysis of mesoscale eddy propagation velocity in the South China Sea deep basin显示文摘Using mesoscale eddy trajectory product derived from satellite altimetry data from 1993 to 2017,this study analyzes the statistical characteristics of spatiotemporal distribution of mesoscale eddy propagation velocities(C)in the South China Sea(SCS)deep basin with depths>1000 m.Climatologically,the zonal propagation velocities(cx)are westwards in the whole basin,and the meridional velocities(cy)are southwards in the northwestern basin,and northwards in the southeastern basin.The variation of cy with longitude is consistent with that of the background meridional currents with correlation coefficient R2 of 0.96,while the variation of cx is related both to the background zonal currents andβeffect.The propagation velocities characterize significant seasonality with the minimum magnitude occurring in summer and the maximum in winter for cx and C.Interannually,larger values of cx and cy mostly occurred in La Ni?a years in the negative phase of the Pacific Decadal Oscillation(PDO).Mesoscale eddies move fast at the beginning and end of their life span,i.e.,at their growth and dissipation periods,and slowly during their stable'midlife'period.This trend is negatively correlated with the rotating tangential velocity with R2 of–0.93.Eddies with extreme propagation velocities are defined,which are slower(faster)than 1.5 cm/s(15.4 cm/s)and take 1.5%(1.9%)of the total eddies.The extremely slow-moving(fastmoving)eddies tend to appear in the middle(on the edge)of the basin,and mostly occur in summer(winter).The mechanism analysis reveals that the spatiotemporal distributions of the propagation velocities of mesoscale eddies in the SCS are modulated by the basin-scale background circulation. | Runqi Huang Lingling Xie Quanan Zheng Mingming Li Peng Bai Keyi Tan | 2020 | Acta Oceanologica Sinica2020，39，11： | 4 |
| 2 | Influencing factors on the preservation of lytic bacteriophage VP3显示文摘Long-term and stable preservation of bacteriophages is of crucial importance.Although many efforts have been made in the past decades to explore the influence of external factors on bacteriophage preservation,there is still little understanding,and a systematic description is lacking.In this study,we explored the influence of different factors on the preservation of lytic bacteriophage VP3,one of the typing bacteriophages of Vibrio cholerae O1 biotype El Tor,and attempted to optimize its preservation.We examined external factors,including temperature,solution,and cryoprotectant,in stable cooling/freezing conditions or alternate cooling/freezing and thawing.We found that whether in Luria-Bertani(LB)medium or SM buffer,in terms of 20-week stable cooling or freezing,−20℃ was the most damaging while 4℃,−80℃,and−196℃ were protective.Thirteen cycles of alternate cooling/freezing and thawing caused a loss in the survival rates of bacteriophages.The addition of cryoprotectant,glycerol(30%,w/v)or dimethyl sulfoxide(DMSO,10%,w/v)significantly improved the survival rates of bacteriophages preserved at−20℃.However,at 4℃,−80℃,and−196℃,the cryoprotectant effect was only slightly positive or even harmful.In summary,for bacteriophage VP3,the best preservation method is to directly preserve the bacteriophage stocks in LB medium at−80℃ or−196℃ instead of storing them in SM buffer or adding cryoprotectant.Our results provided insights into the external influencing factors on bacteriophage VP3 during preservation at low temperature and can be applied to the optimization of bacteriophage preservation in the future. | Yue Xiao Pin Huang Zhenzhou Huang Keyi Yu Yang Song Ning Guo Hang Dai Mengnan Jiang Yi Xu Duochun Wang Qiang Wei | 2022 | Biosafety and Health2022，4，5： | 2 |
| 3 | Suppression of ETI by PTI priming to balance plant growth and defense through an MPK3/MPK6-WRKYs-PP2Cs module显示文摘Pattern-triggered immunity(PTI)and effector-triggered immunity(ETI)are required for host defense against pathogens.Although PTI and ETI are intimately connected,the underlying molecular mechanisms remain elusive.In this study,we demonstrate that flg22 priming attenuates Pseudomonas syringae pv.tomato DC3000(Pst)AvrRpt2-induced hypersensitive cell death,resistance,and biomass reduction in Arabidopsis.Mitogen-activated protein kinases(MAPKs)are key signaling regulators of PTI and ETI.The absence of MPK3 and MPK6 significantly reduces pre-PTI-mediated ETI suppression(PES).We found that MPK3/MPK6 interact with and phosphorylate the downstream transcription factor WRKY18,which regulates the expression of AP2C1 and PP2C5,two genes encoding protein phosphatases.Furthermore,we observed that the PTI-suppressed ETI-triggered cell death,MAPK activation,and growth retardation are significantly attenuated in wrky18/40/60 and ap2c1 pp2c5 mutants.Taken together,our results suggest that the MPK3/MPK6-WRKYs-PP2Cs module underlies PES and is essential for the maintenance of plant fitness during ETI. | Dacheng Wang Lirong Wei Ting Liu Jinbiao Ma Keyi Huang Huimin Guo Yufen Huang Lei Zhang Jing Zhao Kenichi Tsuda Yiming Wang | 2023 | Molecular Plant2023，16，5： | 1 |
| 4 | The possibility of trapping and manipulating a nanometer scale paticle by the SNOM tip显示文摘 | Wang Keyi Jin Zhen Huang Wenhao | 1998 | Optics Communications1998，149，： | 1 |
| 5 | The possibility of trapping and manipulating a nanometer scale paticle by the SNOM tip显示文摘 | Wang Keyi Jin Zhen Huang Wenhao | 1998 | Optics Communications1998，149，： | 1 |
| 6 | Catalytic Dehydration of 4-Hydroxy-3-hexanone to 4-Hexen-3-one over HZSM-5 Zeolite显示文摘A study on catalytic dehydration of 4-hydroxy-3-hexanone(HH)to 4-hexen-3-one(HO)was carried out through conversion of HH over HZSM-5 zeolite catalyst in a fixed-bed reactor(FBR)operating under atmospheric pressure.The test indicated a relatively high activity of the HZSM-5 zeolite capable of achieving a HH conversion of 99.2%and a HO yield of 83.5%.Catalyst deactivation could be prevented by increasing the reaction temperature by 10℃for every 20 h and adding 2.0%of piperidine in the feed.A catalyst stability test(for 100 h)in FBR showed that the catalyst was active even after 100 h of time-on-stream with HH conversion remaining at 99.2%and HO yield still reaching over 83.5%.Regeneration experiment showed that the regenerated catalyst demonstrated a catalytic performance comparable to the fresh one. | Huang Kai Zheng Haitao Tao Keyi | 2013 | China Petroleum Processing & Petrochemical Technology2013，15，4： | 0 |
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