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A PeMYB-like gene induced by brassinosteroids regulates cellulose synthesis in tobacco
Xilong Du,Shan Liu,Chang Ma,Mingguo Ma 한국식물생명공학회 2019 Plant biotechnology reports Vol.13 No.2
MYB is a well-known key transcriptional regulator involved in plant development and metabolism. In this study, a new MYB gene was isolated from Phyllostachys edulis and named PeMYB-like. A close link between brassinosteroids (BRs) and PeMYB-like gene expression was suggested in this study. Functional characterization of PeMYB-like was elucidated through overexpression of this gene in tobacco. Expression of PeMYB-like in ten independent transgenic tobacco lines was quantified by semi-quantitative RT-PCR. The expression levels NtCESA1 and NtCESA2 in transgenic plants were higher than that in control plants. The transgenic lines also showed a significant increase in cellulose content, suggesting that PeMYB-like may enhance cellulose biosynthesis through the upregulation of genes encoding enzymes involved in cellulose biosynthesis in plant stems. Our study indicated that there may be a close link between PeMYB-like gene expression and cellulose biosynthesis; moreover, BR signaling pathway might be involved in cellulose biosynthesis processes through the regulation of the MYB gene transcription.
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Zhifeng Shang,Yingke Ren,Guoquan Nie,Xilong Ma,Xing Gao 한국전기전자재료학회 2024 Transactions on Electrical and Electronic Material Vol.25 No.2
Two-dimensional/three-dimensional (2D/3D) hierarchical structure has attracted extensively attention in recent years due to their stability and the enhanced open-circuit voltage of perovskite solar cells. However, the solution processed thin 2D perovskite layers on the surface of 3D perovskites would lead to undesirable intermixing between the two phases, impeded carrier transport. Here, we present a novel approach for fabricating 2D perovskite on 3D perovskite using vapor-assisted solution deposition. Unlike what is normally observed in solution-processed 3D/2D systems, a flat interface formed in the 2D/3D bilayer heterostructure. The vapor-deposited 2D perovskite capping layer promotes efficient electron and hole separation processes and significantly restrain non-radiative charge recombination. This innovative stable and low-cost architecture will enable the timely commercialization of perovskite solar cells.
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