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- 저자 : Zhang Luhe (검색결과 2 건)
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Zhang Luhe,Li Yi,Yang Jiangwei,Huang Huali,Lu Qian,Zhao Junying,Wang Fang,Wang Duofeng 한국유전학회 2023 Genes & Genomics Vol.45 No.2
Background MicroRNAs (miRNAs) are about 21 snucleotide (nt) long, non-coding RNAs that play an important role in plant abiotic stress responses. Chinese jujube is a native fruit tree in China, which is also an admittedly drought-resistant plant. But the drought-related miRNAs have little been reported in jujube. Objective To identify possibly drought-responsive microRNAs and their target genes in Chinese Jujube. Methods Twelve small RNA libraries were constructed from two jujube genotypes both drought treated and control samples with three replicates to identify known and novel miRNAs in Chinese Jujube, DESeq2 was used to identify expression pattern of miRNAs between drought treatment and control samples, TargetFinder program was used to predict potential target genes of conserved and novel miRNAs, RT-qPCR were used to analysis the expression levels of drought-related miRNAs and their potential targets. The RNA ligase-mediated RLM-5′ RACE experiments were performed to validate predicted target genes of drought-related miRNAs. Results 43 known miRNAs and 431 novel miRNAs were identified in Chinese jujube. Expression analysis showed that 28 miRNAs were differential expressed under drought stress in jujube variety “Dongzao”, including 21 up-regulated miRNAs and 7 down-regulated miRNAs, 61 miRNAs were differential expressed under drought stress in Chinese jujube variety “Zanhuangdazao”, including 23 up-regulated miRNAs and 37 down-regulated miRNAs. Depend on miRNAs target prediction, functional annotation and expression analysis, we identified 9 drought-related miRNAs, and 7 target genes of 6 miRNAs were confirmed using the modified 5′-RACE method. Also, RT-qPCR analyses revealed that relative expression of those miRNAs and their targets have negative tendency. Conclusion We identified 6 drought-related miRNAs by high-throughout sequencing and target gene annotation from Chinese jujube, and targets of those miRNAs were confirmed by the modified 5′-RACE method. These findings provide molecular evidence for enhancing drought tolerance in Chinese jujube and other plants.
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ZhaoHong Meng,LuHe Wan,LiJuan Zhang,ShuYing Zang 한국공업화학회 2014 Journal of Industrial and Engineering Chemistry Vol.20 No.6
Ce, N codoped TiO2 nano-particles were fabricated through sol–gel strategy in the absence of water. Results revealed that Ce was not implanted into the lattice of TiO2 and existed as the forms of smallcluster CeO2 which uniformly diffused onto the surface or interstitial site of TiO2, while N dopants weresuccessfully incorporated into the structure of TiO2 by substituting the lattice oxygen atoms and existedas the forms of N–Ti–O bonds, thereby resulting in the formation of impurity level above the valenceband of TiO2 and enhancement of visible photocatalytic (PC) performance. The enhanced visible PCmechanism was discussed.
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