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9篇 您的检索式:作者名="JIAO Shanshan"
    题名 作者 年代 出处 被引量
1Closely packed nanoparticle monolayer as a strain gauge fabricated by convective assembly at a confined angle显示文摘Chao Zhang Juan Li Shanshan Yang Weihong Jiao Shuang Xiao Mingqing Zou Songliu Yuan Fei Xiao Shuai Wang Lihua Qian 2014Nano Research2014,7,6:2
2Shorter alkyl chain in thieno[3,4-c]pyrrole-4,6-dione(TPD)-based large bandgap polymer donors – Yield efficient non-fullerene polymer solar cells显示文摘Typically,conjugated polymers are composed of conjugated backbones and alkyl side chains.In this contribution,a cost-effective strategy of tailoring the length of alkyl side chain is utilized to design highperforming thieno[3,4-c]pyrrole-4,6-dione(TPD)-based large bandgap polymer donors PBDT-BiTPD(Cχ)(χ=48,52,56),in which x represents the alkyl side chain length in term of the total carbon number.A combination of light absorption,device,and morphology examinations make clear that the shorter alkyl side chains yield(i) higher crystallinity and more predominant face-on crystallite orientation in their neat and BHJ blend films,(ii) higher charge mobilities(6.7×10^(-4) cm~2 V^(-1) s^(-1) for C48 vs.3.2×10^(-4) cm~2 V^(-1) s^(-1) for C56),and negligible charge recombination,consequently,(iii) significantly improved fill-factor(FF) and short current(J_(SC)),while almost the same open circuit voltage(V_(OC)) of ca.0.82 V in their corresponding BHJ devices.In parallel,as alkyl side chain lengths decrease from C56 to C48,power conversion efficiencies(PCEs) increased from 7.8% for C56 to 11.1% for C52,and further to14.1% for C48 in their BHJ solar cells made with a narrow bandgap non-fullerene acceptor Y6.This systematic study declares that shortening the side chain,if providing appropriate solubility in device solution processing solvents,is of essential significance for developing high-performing polymer donors and further improving device photovoltaic performance.Jiaji Zhao Xuelong Huang Qingduan Li Shengjian Liu Ziqiang Fan Di Zhang Shanshan Ma Zhixiong Cao Xuechen Jiao Yue-Peng Cai Fei Huang 2021Journal of Energy Chemistry2021,30,2:1
3Effect of / ratios on the absorption and up-conversion emissionspectra in In : Yb Ho - LiNbO3 crystal 显示文摘LI Dai YAN Zhehua JIAO Shanshan 2015Journal of Alloys and Compounds2015,644,:1
4The transcription factor CsS40 negatively regulates TCS1 expression and caffeine biosynthesis in connection to leaf senescence in Camellia sinensis显示文摘Caffeine is considered as one of the most important bioactive components in the popular plant beverages tea,cacao,and coffee,but as a wide-spread plant secondary metabolite its biosynthetic regulation at transcription level remains largely unclear.Here,we report a novel transcription factor Camellia sinensis Senescnece 40(CsS40)as a caffeine biosynthesis regulator,which was discovered during screening a yeast expression library constructed from tea leaf cDNAs for activation of tea caffeine synthase(TCS1)promoter.Besides multiple hits of the non-self-activation CsS40 clones that bound to and activated TCS1 promoter in yeast-one-hybrid assays,a split-luciferase complementation assay demonstrated that CsS40 acts as a transcription factor to activate the CsTCS1 gene and EMSA assay also demonstrated that CsS40 bound to the TCS1 gene promoter.Consistently,immunofluorescence data indicated that CsS40-GFP fusion was localized in the nuclei of tobacco epidermal cells.The expression pattern of CsS40 in‘Fuding Dabai’developing leaves was opposite to that of TCS1;and knockdown and overexpression of CsS40 in tea leaf calli significantly increased and decreased TCS1 expression levels,respectively.The expression levels of CsS40 were also negatively correlated to caffeine accumulation in developing leaves and transgenic calli of‘Fuding Dabai’.Furthermore,overexpression of CsS40 reduced the accumulation of xanthine and hypoxanthine in tobacco plants,meanwhile,increased their susceptibility to aging.CsS40 expression in tea leaves was also induced by senescence-promoting hormones and environmental factors.Taken together,we showed that a novel senescence-related factor CsS40 negatively regulates TCS1 and represses caffeine accumulation in tea cultivar‘Fuding Dabai’.The study provides new insights into caffeine biosynthesis regulation by a plant-specific senescence regulator in tea plants in connection to leaf senescence and hormone signaling.Xinzhuan Yao Hufang Chen Antao Ai Fen Wang Shanshan Lian Hu Tang Yihe Jiang Yujie Jiao Yumei He Tong Li Litang Lu 2023Horticulture Research2023,10,9:0
5Nasal delivery of thermostable and broadly neutralizing antibodies protects mice against SARS-CoV-2 infection显示文摘Dear Editor,The ongoing SARS-CoV-2 pandemic has lasted for 2 years,causing a severe global impact on social development.With widespread vaccinations,the number of new infections has dropped significantly,but with the emergence of diverse novel variants of concern(VOCs)and variants of interest(VOIs),there has been a second or third epidemic wave in many countries.Wenhui Fan Shanshan Sun Ning Zhang Yuan Zhanq Pengtao Jiao Jian Wang George F.Gao Wenjun Liur Yuhai Bi Limin Yang 2022Signal Transduction and Targeted Therapy2022,7,3:0
6Arabidopsis RNA polymerase Ⅱ C-terminal domain phosphatase-like 1 targets mitogen-activated protein kinase cascades to suppress plant immunity显示文摘Mitogen-activated protein kinase(MAPK) cascades play pivotal roles in plant defense against phytopathogens downstream of immune receptor complexes. The amplitude and duration of MAPK activation must be strictly controlled, but the underlying mechanism remains unclear. Here, we identified Arabidopsis CPL1(C-terminal domain phosphatase-like 1)as a negative regulator of microbe-associated molecular pattern(MAMP)-triggered immunity via a forward-genetic screen. Disruption of CPL1 significantly enhanced plant resistance to Pseudomonas pathogens induced by the bacterial peptide fg22. Furthermore, fg22-induced MPK3/MPK4/MPK6 phosphorylation was dramatically elevated in cpl1 mutants but severely impaired in CPL1 overexpression lines, suggesting that CPL1 might interfere with fg22-induced MAPK activation. Indeed, CPL1 directly interacted with MPK3 and MPK6, as well as the upstream MKK4 and MKK5. A firefy luciferase-based complementation assay indicated that the interaction between MKK4/MKK5 and MPK3/MPK6 was significantly reduced in the presence of CPL1. These results suggest that CPL1 plays a novel regulatory role in suppressing MAMP-induced MAPK cascade activation and MAMP-triggered immunity to bacterial pathogens.Junjun Wei Wei Sun Xinhang Zheng Shanshan Qiu Shuangyu Jiao Kevin Babilonia Hisashi Koiwa Ping He Libo Shan Wenxian Sun Fuhao Cui 2023Journal of Integrative Plant Biology2023,65,10:0
7Structural insights into ligand recognition and activation of the melanocortin-4 receptor显示文摘Melanocortin-4 receptor(MC4R)plays a central role in the regulation of energy homeostasis.Its high sequence similarity to other MC receptor family members,low agonist selectivity and the lack of structural information concerning MC4R-specific activation have hampered the development of MC4R-seletive therapeutics to treat obesity.Here,we report four high-resolution structures of full-length MC4R in complex with the heterotrimeric Gs protein stimulated by the endogenous peptide ligand a-MSH,FDA-approved drugs afamelanotide(Scenesse™)and bremelanotide(Vyleesi™),and a selective small-molecule ligand THIQ,respectively.Together with pharmacological studies,our results reveal the conserved binding mode of peptidic agonists,the distinctive molecular details of small-molecule agonist recognition underlying receptor subtype selectivity,and a distinct activation mechanism for MC4R,thereby offering new insights into G protein coupling.Our work may facilitate the discovery of selective therapeutic agents targeting MC4R.Huibing Zhang Li-Nan Chen Dehua Yang Chunyou Mao Qingya Shen Wenbo Feng Dan-Dan Shen Antao Dai Shanshan Xie Yan Zhou Jiao Qin Jin-Peng Sun Daniel H.Scharf Tingjun Hou Tianhua Zhou Ming-Wei Wang Yan Zhang 2021Cell Research2021,31,11:0
8That’s A Scientist Should Do——A Dialog with Tomas Lindahl显示文摘Dr Tomas Lindahl is a world-renowned scientist specialized in cancer research,in particular,DNA repair[1].In 2015,he was awarded the Nobel Prize in Chemistry jointly with Dr Paul L.Modrich and Dr Aziz Sancar“for mechanistic studies of DNA repair”(http://gffzzd4f86938af8b41c7scc6koxnp0nko6bbw.ffgz.tsg.suse.edu.cn/prizes/chemistry/2015/press-release/)[2].During his recent visits in China,besides delivering lectures,Tomas also attended a couple of group meetings with students and PIs.He actively interacted with the audience,not only on topics relating to DNA repair,but also on how to do science and beyond.We presented this special report based on recordings.Shanshan Xie Yuxia Jiao 2019Genomics, Proteomics & Bioinformatics2019,17,3:0
9AtMYBS1 negatively regulates heat tolerance by directly repressing the expression of MAX1 required for strigolactone biosynthesis in Arabidopsis显示文摘Heat stress caused by global warming requires the development of thermotolerant crops to sustain yield.It is necessary to understand the molecular mechanisms that underlie heat tolerance in plants.Strigolactones(SLs)are a class of carotenoid-derived phytohormones that regulate plant development and responses to abiotic or biotic stresses.Although SL biosynthesis and signaling processes are well established,genes that directly regulate SL biosynthesis have rarely been reported.Here,we report that the MYB-like transcription factor AtMYBS1/AtMYBL,whose gene expression is repressed by heat stress,functions as a negative regulator of heat tolerance by directly inhibiting SL biosynthesis in Arabidopsis.Overexpression of AtMYBS1 led to heat hypersensitivity,whereas atmybs1 mutants displayed increased heat tolerance.Expression of MAX1,a critical enzyme in SL biosynthesis,was induced by heat stress and downregulated in AtMYBS1-overexpression(OE)plants but upregulated in atmybs1 mutants.Overexpression of MAX1 in the AtMYBS1-OE background reversed the heat hypersensitivity of AtMYBS1-OE plants.Loss of MAX1 function in the atmyb1 background reversed the heat-tolerant phenotypes of atmyb1 mutants.Yeast one-hybrid assays,chromatin immunoprecipitation‒qPCR,and transgenic analyses demonstrated that AtMYBS1 directly represses MAX1 expression through the MYB binding site in the MAX1 promoter in vivo.The atmybs1d14 double mutant,like d14 mutants,exhibited hypersensitivity to heat stress,indicating the necessary role of SL signaling in AtMYBS1-regulated heat tolerance.Our findings provide new insights into the regulatory network of SL biosynthesis,facilitating the breeding of heat-tolerant crops to improve crop production in a warming world.Xiang Li Jianhua Lu Xuling Zhu Yanqi Dong Yanli Liu Shanshan Chu Erhui Xiong Xu Zheng Yongqing Jiao 2023Plant Communications2023,4,6:0
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