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| 1 | The calcium-dependent protein kinase ZmCDPK7 functions in heat-stress tolerance in maize显示文摘Global warming poses a serious threat to crops.Calcium-dependent protein kinases(CDPKs)/CPKs play vital roles in plant stress responses,but their exact roles in plant thermotolerance remains elusive.Here,we explored the roles of heat-induced ZmCDPK7 in thermotolerance in maize.ZmCDPK7-overexpressing maize plants displayed higher thermotolerance,photosynthetic rates,and antioxidant enzyme activity but lower H2 O2 and malondialdehyde(MDA)contents than wild-type plants under heat stress.ZmCDPK7-knockdown plants displayed the opposite patterns.ZmCDPK7 is attached to the plasma membrane but can translocate to the cytosol under heat stress.ZmCDPK7 interacts with the small heat shock protein sHSP17.4,phosphorylates sHSP17.4 at Ser-44 and the respiratory burst oxidase homolog RBOHB at Ser-99,and up regulates their expression.Site-directed mutagenesis of sHSP17.4 to generate a Ser-44-Ala substitution reduced ZmCDPK7’s enhancement of catalase activity but enhanced ZmCDPK7’s suppression of MDA accumulation in heat-stressed maize protoplasts.sHSP17.4,ZmCDPK7,and RBOHB were less strongly upregulated in response to heat stress in the abscisic acid-deficient mutant vp5 versus the wild type.Pretreatment with an RBOH inhibitor suppressed sHSP17.4 and ZmCDPK7 expression.Therefore,abscisic acid-induced ZmCDPK7 functions both upstream and downstream of RBOH and participates in thermotolerance in maize by mediating the phosphorylation of sHSP17.4,which might be essential for its chaperone function. | Yulong Zhao Hanwei Du Yankai Wang Huali Wang Shaoyu Yang Chaohai Li Ning Chen Hao Yang Yihao Zhang Yulin Zhu Luyao Yang Xiuli Hu | 2021 | Journal of Integrative Plant Biology2021，63，3： | 6 |
| 2 | Investigation on random distributed feedback Raman fiber laser with linear polarized output显示文摘A random distributed feedback fiber laser with linear polarized output at 1178 nm is presented. Linear polarization is realized by fiber coiling in a half-opened cavity of a polarization maintaining random fiber laser structure.The single linear polarization laser output power reaches ~3 W with polarization extinction ratio >14 dB. Further investigations on the coiling technique and additional feedback are also studied. So far as we know, this is the first reported linear polarized random distributed feedback Raman fiber laser. | Xueyuan Du Hanwei Zhang Xiaolin Wang Pu Zhou Zejin Liu | 2015 | Photonics Research2015，3，2： | 3 |
| 3 | Effective inhibition of mRNA accumulation and protein expression of H5N1 avian influenza virus NS1 gene in vitro by small interfering RNAs显示文摘 | Hanwei Jiao Li Du Yongchang Hao Ying Cheng Jing Luo Wenhua Kuang Donglin Zhang Ming Lei Xiaoxiao Jia Xiaoru Zhang Chao Qi Hongxuan He Fengyang Wang | 2013 | Folia Microbiologica2013，，4： | 1 |
| 4 | Correlation of coordinate transformation parameters显示文摘Coordinate transformation parameters between two spatial Cartesian coordinate systems can be solved from the positions of non-colinear corresponding points.Based on the characteristics of translation,rotation and zoom components of the transformation,the complete solution is divided into three steps.Firstly,positional vectors are regulated with respect to the centroid of sets of points in order to separate the translation components.Secondly,the scale coefficient and rotation matrix are derived from the regulated positions independently and correlations among transformation model parameters are analyzed.It is indicated that this method is applicable to other sets of non-position data to separate the respective attributions for transformation parameters. | Du Lan Zhang Hanwei Zhou Qingyong Wang Ruopu | 2012 | Geodesy and Geodynamics2012，3，1： | 1 |
| 5 | Insights into the rheological modeling of semi-solid metals:Theoretical and simulation study显示文摘The power law model is the most widely used model for the rheological behavior of semi-solid metals(SSMs)in the numerical simulation of semi-solid processing.However,it is still not known why the anomalous negative flow exponent exists in the power law model for SSMs and its influence on the simulation.In this research,the rheological behavior of semi-solid Al-7Si-0.3Mg aluminum alloy is experimentally studied followed by modeling.The power law model fitting results show flow curves deviate from the experimental data and negative flow exponents,which are physically nonsensical and inapplicable to the simulation of SSMs flow proved by hydrodynamic analysis.This drawback of the power law model stems from neglecting the yield stress of SSMs.By contrast,the model referring Herschel-Bulkley(HB)theory which takes yield stress into consideration has reasonable flow exponent and yields good agreement between the fitting and experimental results.Furthermore,the simulation of die filling process is conducted,suggesting that the power law model over-optimistically predicts the tendency of blistering and misrun defects at low temperature and high filling velocity during semi-solid processing. | Zhen Ma Huarui Zhang Hanwei Fu Yanzhao Yang Jianji Wang Ming Du Hu Zhang | 2022 | Journal of Materials Science & Technology2022，，5： | 0 |
| 6 | A high-safety, flame-retardant cellulose-based separator with encapsulation structure for lithium-ion battery显示文摘The safety issues of lithium-ion batteries have received attention because flammable organic electrolytes are used.Also,the commercial polyolefin separator will undergo severe thermal shrinkage when the internal temperature of the battery increases to 130-160°C,which increases the risk.Therefore,the development of a high thermal stability and high-safety separator is an effective strategy to improve battery safety.Herein,we design a green,cellulose-based separator(Cel@DBDPE)with a unique encapsulation structure for lithium-ion batteries,in which functional flame retardants(DBDPE)are wrapped in microscrolls formed by the self-rolling of 2D cellulose nanosheets upon freeze-drying.This structure can firmly anchor DBDPE particles in the separator to prevent them from undergoing exfoliation and does not affect the properties of the separator,such as the thickness and the pore structure.Compared with commercial polypropylene,Cel@DBDPE has excellent thermal stability and flame retardancy.The former makes it less prone to thermal shrinkage and the latter can effectively prevent the combustion of the electrolyte,showing an efficient self-extinguishing ability.Moreover,the Cel@DBDPE is only 15μm in size and has competitive properties comparable to polypropylene.Thus,there is no sacrifice in the electrochemical performance of battery when the Cel@DBDPE is used as separator.This study provides a new structural design for the construction of a high-safety separator. | Jinzhou Fu Hanwei Wang Zhichen Du Yao Liu Qingfeng Sun Huiqiao Li | 2023 | SmartMat2023，4，5： | 0 |
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