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- 저자 : Bo Jinqiu (검색결과 2 건)
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Pengfei Liao,Jinqiu Huang,Puguo Tong,Wang Nie,Xin Yan,Yingmei Feng,Hui Peng,Xiaojue Peng,Shao-Bo Li 한국유전학회 2017 Genes & Genomics Vol.39 No.5
Genes encoding inositolphosphorylceramide synthase (IPCS), which play essential roles in sphingolipid biosynthesis, have been known to be widely distributed in plants. However, reports on identification, expression, and function analysis of plant IPCS family genes are very limited. In this study, a total of three OsIPCS genes were identified in the rice database, and their full-length coding regions were amplified by RT-PCR. These genes had 12–13 exons, and they encoded proteins of 313–326 amino acids with molecular mass of 35.8–37.6 kDa and isoelectric point of 10.99–12.61. Importantly, two typical and conserved motifs (D3 and D4) in plants were found in all the three putative OsIPCS proteins, indicating high similarity of OsIPCSs to the other plant IPCS proteins, which were confirmed by phylogenetic analysis. The transcripts of OsIPCS genes appeared in different rice organs including seedling roots, stems and leaves, and young panicles, but each gene showed a unique organ-specific expression pattern. Meanwhile, we found that all the three OsIPCS genes showed responses to stresses like drought, cold and salt, but their expression patterns were also to some extent different under stress treatments. Especially, under cold stress, OsIPCS1 and OsIPCS2 were significantly up-regulated in roots and stems but down-regulated in leaves, while OsIPCS3 was significantly up-regulated in all the measured organs. Actually, putative abiotic-stress regulatory elements were identified in the promoters of these genes. Our data suggest that OsIPCS genes should play important roles during rice growth and adversity adaptation.
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Ultrafast dynamics control on ablation of Cu using shaped femtosecond pulse trains
Deng Jiannan,Qi Hongxia,Liu Xinyi,Li Xiaoyi,Tong Qiunan,Lian Zhenzhong,Li Juan,Bo Jinqiu,Fei Dehou,Chen Zhou,Hu Zhan 한국물리학회 2021 Current Applied Physics Vol.26 No.-
The ablation processes of Cu film are investigated using temporal shaped femtosecond pulse trains. The depth is modulated by changing the number and interval of the sub-pulses. The underlying ultrafast dynamic processes are discussed based on plasma shielding and electron multiple heating mechanisms. When the sub-pulse interval is less than 0.4 ps electron multiple heating is the dominant mechanism, while the plasma shielding dominates the subsequent ablation processes when the sub-pulse interval is larger than 0.4 ps. The curve of depth obtained by three pulse trains shows more significant oscillation as the function of sub-pulse interval under the lowfluence. We propose that the oscillation of depth is due to the coherent phonon oscillation excited by the pulse train. The study provides a basis for giving insight into the ultrafast dynamics for improving micromachining and nano-fabrications using shaped femtosecond pulse trains.
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