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4篇 您的检索式:作者名="Can Chengyu"
    题名 作者 年代 出处 被引量
1Hundred-Joule-level,nanosecond-pulse Nd:glass laser system with high spatiotemporal beam quality显示文摘A 100-J-level Nd:glass laser system in nanosecond-scale pulse width has been constructed to perform as a standard source of high-fluence-laser science experiments. The laser system, operating with typical pulse durations of 3–5 ns and beam diameter 60 mm, employs a sequence of successive rod amplifiers to achieve 100-J-level energy at 1053 nm at3 ns. The frequency conversion can provide energy of 50-J level at 351 nm. In addition to the high stability of the energy output, the most valuable of the laser system is the high spatiotemporal beam quality of the output, which contains the uniform square pulse waveform, the uniform flat-top spatial fluence distribution and the uniform flat-top wavefront.Sensen Li Yulei Wang Zhiwei Lu Lei Ding Yi Chen Pengyuan Du Dexin Ba Zhenxing Zheng Xin Wang Hang Yuan Chengyu Zhu Weiming He Dianyang Lin Yongkang Dong Dengwang Zhou Zhenxu Bai Zhaohong Liu Can Cui 2016High Power Laser Science and Engineering2016,4,1:3
2Novel L Adaptive Control Methodology for Aerial Refueling with Guaranteed Transient Performance 显示文摘Wang Jiang Vijay P Can Chengyu 2008Journal of Guidance Control and Dynamics (S0731-5090)2008,31,1:1
3Spatial beam shaping for high-power frequency tripling lasers based on a liquid crystal spatial light modulator显示文摘Sensen Li Yulei Wang Zhiwei Lu Lei Ding Can Cui Yi Chen Du Pengyuan Dexin Ba Zhenxing Zheng Hang Yuan Lei Shi Zhenxu Bai Zhaohong Liu Chengyu Zhu Yongkang Dong Luoxian Zhou 2016Optics Communications2016,,:1
4OpNAC1 transcription factor regulates the biosynthesis of the anticancer drug camptothecin by targeting loganic acid O-methyltransferase in Ophiorrhiza pumila显示文摘Camptothecin(CPT) is an anticancer pentacyclic quinoline alkaloid widely used to treat cancer patients worldwide. However, the biosynthetic pathway and transcriptional regulation of camptothecin are largely unknown. Ophiorrhiza pumila, the herbaceous plant from the Rubiaceae family, has emerged as a model plant for studying camptothecin biosynthesis and regulation. In this study, a high-quality reference genome of O. pumila with estimated size of ~456.90Mb was reported, and the accumulation level of camptothecin in roots was higher than that in stems and leaves. Based on its spatial distribution in the plant, we examined gene functions and expression by combining genomics with transcriptomic analysis.Two loganic acid O-methyltransferase(OpLAMTs)were identified in strictosidine-producing plant O.pumila, and enzyme catalysis assays showed that OpLAMT1 and not OpLAMT2 could convert loganic acid into loganin. Further knock-out of OpL AMT1expression led to the elimination of loganin and camptothecin accumulation in O. pumila hairy roots.Four key residues were identified in OpLAMT1 protein crucial for the catalytic activity of loganic acid to loganin. By co-expression network, we identified a NAC transcription factor, OpNAC1, as a candidate gene for regulating camptothecin biosynthesis.Transgenic hairy roots and biochemical assays demonstrated that OpNAC1 suppressed OpLAMT1 expression. Here, we reported on two camptothecin metabolic engineering strategies paving the road for industrial-scale production of camptothecin in CPT-producing plants.Xiaolong Hao Can Wang Wei Zhou Qingyan Ruan Chenhong Xie Yinkai Yang Chengyu Xiao Yan Cai Jingyi Wang Yao Wang Xuebin Zhang Itay Maoz Guoyin Kai 2023Journal of Integrative Plant Biology2023,65,1:0
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