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12篇 您的检索式:作者名="Han Yuanji"
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1Mechanism of floral scent production in Osmanthus fragrans and the production and regulation of its key floral constituents,β-ionone and linalool显示文摘Sweet osmanthus(Osmanthus fragrans Lour.)is among the top ten most well-known flowers in China and is recognized as both an aromatic plant and ornamental flower.Here,manual sectioning,scanning electron microscopy,and transmission electron microscopy of sweet osmanthus petals revealed that large amounts of lipids are present inside the petal cells and on the cell surfaces.However,no secretory structures were observed.Instead,the petal cells protrude slightly outward,and the surfaces of the cells are adorned with highly regular brush-shaped hairs.The surfaces of the‘Yingui’petals possessed mostly curled and more numerous hairs,whereas the‘Dangui’petals possessed fewer brush-shaped and more sparsely arranged hairs.In addition,many granular substances were attached to the brush-shaped hairs,and the granules were denser on the hairs of the‘Yingui’petals compared to the hairs on the‘Dangui’petals.Furthermore,35 aromatic components in the‘Yingui’petals and 30 aromatic components in the‘Dangui’petals were detected via GC-MS.The main aromatic component of the‘Yingui’petals wasβ-ionone,whereas that of the‘Dangui’petals was linalool and its oxides.Transcriptome sequencing and qRT-PCR indicated that the highβ-ionone content in the‘Yingui’petals was due to the overexpression of CCD1 and CCD4 and that the high linalool content in the‘Dangui’petals was due to the overexpression of MECS,HDR,IDI1,and LIS1,which function upstream of the linalool synthetic pathway.In particular,the expression levels of CCD4 and LIS1 were upregulated by 5.5-and 5.1-fold in the‘Yingui’and‘Dangui’petals,respectively.One transcription factor(ERF61)was cloned and named,and the expression pattern of ERF61 in sweet osmanthus petals was found to be generally consistent with that of CCD4.Tobacco transformation experiments,yeast one-hybrid experiments,and electrophoretic mobility shift assays indicated that ERF61 binds to the CCD4 promoter and stimulates CCD4 expression,thereby regulating the synthesis ofβ-ionone in sweet osmanthus petals.Yuanji Han Hongyun Wang Xiaodan Wang Ke Li Meifang Dong Yong Li Qian Zhu Fude Shang 2019Horticulture Research2019,6,1:13
2Development of Streptomyces sp. FR-008 as an emerging chassis显示文摘Microbial-derived natural products are important in both the pharmaceutical industry and academic research.As the metabolic potential of original producer especially Streptomyces is often limited by slow growth rate,complicated cultivation profile,and unfeasible genetic manipulation,so exploring a Streptomyces as a super industrial chassis is valuable and urgent.Streptomyces sp.FR-008 is a fast-growing microorganism and can also produce a considerable amount of macrolide candicidin via modular polyketide synthase.In this study,we evaluated Streptomyces sp.FR-008 as a potential industrial-production chassis.First,PacBio sequencing and transcriptome analyses indicated that the Streptomyces sp.FR-008 genome size is 7.26 Mb,which represents one of the smallest of currently sequenced Streptomyces genomes.In addition,we simplified the conjugation procedure without heat-shock and pre-germination treatments but with high conjugation efficiency,suggesting it is inherently capable of accepting heterologous DNA.In addition,a series of promoters selected from literatures was assessed based on GusA activity in Streptomyces sp.FR-008.Compared with the common used promoter ermE*-p,the strength of these promoters comprise a library with a constitutive range of 60e860%,thus providing the useful regulatory elements for future genetic engineering purpose.In order to minimum the genome,we also target deleted three endogenous polyketide synthase(PKS)gene clusters to generate a mutant LQ3.LQ3 is thus an“updated”version of Streptomyces sp.FR-008,producing fewer secondary metabolites profiles than Streptomyces sp.FR-008.We believe this work could facilitate further development of Streptomyces sp.FR-008 for use in biotechnological applications.Qian Liu Liping Xiao Yuanjie Zhou Kunhua Deng Gaoyi Tan Yichao Han Xinhua Liu Zixin Deng Tiangang Liu 2016Synthetic and Systems Biotechnology2016,1,3:2
3AFLP analysis of genetic relationships and diversity of some Chinese Osmanthus fragrans cultivars显示文摘Yan Xueyan Xiao Baolin Han Yuanji 2009Life Science Journal2009,6,2:1
4Assessment of genetic diversity and relationships among Osmanthus fragrans cultivars using AFLP markers显示文摘Yuan Wangjun Han Yuanji Dong Meifang 2011Electronic Journal of Biotech- nology2011,14,1:1
52-22 Elastic Scattering Studies of Light Proton-rich显示文摘The elastic scattering is an important probe to study the properties of a nucleus. An accurate measurement ofthe elastic scattering differential cross section is very important to determine the optical potential parameters andthe so-called one quarter angle (q1=4). Also, the optical potential parameters of stable nuclei and unstable nucleiare found to be different. 8B, the binding energy of the last proton is only 0.137 MeV, is a well-known protonhalonucleus even there are still some arguments. Many investigations have been done for 8B by measuring thetotal reaction cross sections, breakup cross section and inelastic scattering differential cross section. However, theexperimental data of elastic scattering of 8B and other light proton-rich nuclei on heavy target are few. Therefore, aseries of experiments have been carried out for such nuclei at the Radioactive Ion Beam Line in Lanzhou (RIBLL).Wang Jiansong Yang Yanyun Wang Qi Pang Danyang Ma Junbing Huang Meirong Ma Peng Jin Shilun Han Jianlong Bai Zhen Ma Weihu Zhou Yuanjie Chen Jie Jin Lei Chen Jiangbo Hu Qiang R. Wada S. Mukherjee 2014IMP & HIRFL Annual Report2014,,1:0
611.2 W/mm power density AlGaN/GaN high electron-mobility transistors on a GaN substrate显示文摘In this letter,high power density AlGaN/GaN high electron-mobility transistors(HEMTs)on a freestanding GaN substrate are reported.An asymmetricΓ-shaped 500-nm gate with a field plate of 650 nm is introduced to improve microwave power performance.The breakdown voltage(BV)is increased to more than 200 V for the fabricated device with gate-to-source and gate-to-drain distances of 1.08 and 2.92μm.A record continuous-wave power density of 11.2 W/mm@10 GHz is realized with a drain bias of 70 V.The maximum oscillation frequency(f_(max))and unity current gain cut-off frequency(f_(t))of the AlGaN/GaN HEMTs exceed 30 and 20 GHz,respectively.The results demonstrate the potential of AlGaN/GaN HEMTs on freestanding GaN substrates for microwave power applications.Yansheng Hu Yuangang Wang Wei Wang Yuanjie Lv Hongyu Guo Zhirong Zhang Hao Yu Xubo Song Xingye zhou Tingting Han Shaobo Dun Hongyu Liu Aimin Bu Zhihong Feng 2024Journal of Semiconductors2024,45,1:0
72.83-kV double-layered NiO/β-Ga_(2)O_(3) vertical p-n heterojunction diode with a power figure-of-merit of 5.98 GW/cm^(2)显示文摘This work demonstrates high-performance NiO/β-Ga_(2)O_(3) vertical heterojunction diodes(HJDs)with double-layer junc-tion termination extension(DL-JTE)consisting of two p-typed NiO layers with varied lengths.The bottom 60-nm p-NiO layer fully covers theβ-Ga_(2)O_(3) wafer,while the geometry of the upper 60-nm p-NiO layer is 10μm larger than the square anode elec-trode.Compared with a single-layer JTE,the electric field concentration is inhibited by double-layer JTE structure effectively,resulting in the breakdown voltage being improved from 2020 to 2830 V.Moreover,double p-typed NiO layers allow more holes into the Ga_(2)O_(3) drift layer to reduce drift resistance.The specific on-resistance is reduced from 1.93 to 1.34 mΩ·cm^(2).The device with DL-JTE shows a power figure-of-merit(PFOM)of 5.98 GW/cm^(2),which is 2.8 times larger than that of the conven-tional single-layer JTE structure.These results indicate that the double-layer JTE structure provides a viable way of fabricating high-performance Ga_(2)O_(3) HJDs.Tingting Han Yuangang Wang Yuanjie Lv Shaobo Dun Hongyu Liu Aimin Bu Zhihong Feng 2023Journal of Semiconductors2023,44,7:0
8The combination of eddy thermal effect of biodegradable magnesium with immune checkpoint blockade shows enhanced efficacy against osteosarcoma显示文摘Osteosarcoma(OS)patients have a poor prognosis due to its high degree of heterogeneity and high rate of metastasis.Magnetic hyperthermia therapy(MHT)combined with immunotherapy is an effective strategy to treat solid and metastatic tumors.Here,we combined biodegradable magnesium(Mg)macroscale rods,which acted as an eddy thermo-magnetic agent under a low external alternating magnetic field,and immunotherapy to achieve a radical cure for OS.The eddy thermal effect(ETE)of the Mg rods(MgR)showed outstanding cytotoxic effects and enhanced the maturation of dendritic cells(DCs),and the mild MHT induced the immunogenic cell death(ICD)in the OS cells.Combined with immune checkpoint blockade(ICB)therapy,we obtained an excellent curative effect against OS,and a further evaluation demonstrated that the local MHT induced by the MgR increased T cells infiltration and the polarization of M1 macrophages.Interestingly,the biodegradable MgR also promoted bone osteogenesis.Our work highlighted the uneven ETE mediated by the biodegradable MgR induced a comprehensive immunologic activation in the OS tumor microenvironment(TME),which would inspire the application of MHT for the effective treatment of OS.Jun Ge Nailin Yang Yuqi Yang Hao Yu Xiaoyuan Yang Yingjie Wang Tianyi Wang Shuning Cheng Yuanjie Wang Zhihui Han Yun Teng Jun Zou Huilin Yang Liang Cheng 2023Bioactive Materials2023,,7:0
9Consensus on safety management of novel hormonal therapy for advanced prostate cancer显示文摘Prostate cancer(PCa)is one of the most prevalent malignant tumors in men,accompanied by high incidence and mortality rates.Novel hormonal therapy(NHT)has emerged as the primary treatment for advanced PCa,providing noticeable clinical benefits.However,the diverse range of adverse events(AEs)associated with NHT may influence both treatment efficacy and patients'quality of life.In light of the latest international clinical research evidence and recommendations from domestic and foreign guidelines,this consensus aims to provide a comprehensive overview of the common AEs experienced during NHT for advanced PCa patients.Additionally,it seeks to develop a hierarchical approach to more efficiently manage AEs,presenting valuable insights for clinical medication and adverse reaction management.Sujun Han Shudong Cheng Degang Ding Jianming Guo Zhisong He Baiye Jin Zhigang Ji Tianxin Lin Yuanjie Niu Weijun Qin Benkang Shi Jinkai Shao Xi'nan Sheng Qiang Wei Xin Wang Xinghuan Wang Shujie Xia Wanhai Xu Qing Zou Xiongbing Zu Renu Eapen Chi‐Fai Ng Hirotsugu Uemura Hiroji Uemura Cheol Kwak Jae Young Joung Marniza Saad Edmund Chiong Nianzeng Xing 2023UroPrecision2023,1,2:0
10The photosensory function of Zmphot1 differs from that of Atphot1 due to the C-terminus of Zmphot1 during phototropic response显示文摘The role of phot1 in triggering hypocotyl phototropism and optimizing growth orientation has been wellcharacterized in Arabidopsis, whereas the role of Zmphot1 in maize remains largely unclear. Here, we show that Zmphot1 is involved in blue light-induced phototropism. Compared with Atphot1, Zmphot1exhibited a weaker phototropic response to very low-fluence rates of blue light(< 0.01 μmol m-2s-1),but stronger phototropic response to high-fluence rates of blue light(> 10 μmol m-2s-1) than Atphot1. Notably, blue light exposure induced Zmphot1-green fluorescent protein(GFP), but not Atphot1-GFP, to form the aggregates in the cytoplasm of Nicotiana benthamiana cells. Furthermore, by generating the chimeric phot1 proteins, we found that the serine-threonine kinase(STK) domain at the C-terminus is responsible for a more volatile membrane association of Zmphot1. Consistently, the chimeric phot1 protein fusing the STK domain of Zmphot1 with other domains of Atphot1 responded similarly as Zmphot1 to both low and high fluence rates of blue light. Interestingly, although both Zmphot1 and Atphot1 interact with AtNPH3, Zmphot1 induced weaker dephosphorylation of NONPHOTOTROPIC HYPOCOTYL 3(NPH3) than Atphot1. Together, our findings indicate that Zmphot1 and Atphot1 exhibit different photosensory function during phototropic response and that the STK domain may play a key role in determining their properties.Jindong Zhu Fangyuan Zhou Yuxi Wang Yuping Liang Qingping Zhao Yuanji Han Xiang Zhao 2023The Crop Journal2023,11,5:0
11Ultrasmall iron-quercetin metal natural product nanocomplex with antioxidant and macrophage regulation in rheumatoid arthritis显示文摘Oxidative stress,due to the disruption of the balance between reactive oxygen species(ROS)generation and the antioxidant defense system,plays an important role in the pathogenesis of rheumatoid arthritis(RA).Excessive ROS leads to the loss of biological molecules and cellular functions,release of many inflammatory mediators,stimulate the polarization of macrophages,and aggravate the inflammatory response,thus promoting osteoclasts and bone damage.Therefore,foreign antioxidants would effectively treat RA.Herein,ultrasmall iron-quercetin natural coordination nanoparticles(Fe-Qur NCNs)with excellent anti-inflammatory and antioxidant properties were constructed to effectively treat RA.Fe-Qur NCNs obtained by simple mixing retain the inherent ability to remove ROS of quercetin and have a better water-solubility and biocompatibility.In vitro experiments showed that Fe-Qur NCNs could effectively remove excess ROS,avoid cell apoptosis,and inhibit the polarization of inflammatory macrophages by reducing the activation of the nuclear factor-κ-gene binding(NF-κB)pathways.In vivo experiments showed that the swollen joints of mice with rheumatoid arthritis treated with Fe-Qur NCNs significantly improved,with Fe-Qur NCNs largely reducing inflammatory cell infiltration,increasing antiinflammatory macrophage phenotypes,and thus inhibiting osteoclasts,which led to bone erosion.This study demonstrated that the new metal-natural coordination nanoparticles could be an effective therapeutic agent for the prevention of RA and other diseases associated with oxidative stress.Zhihui Han Xiang Gao Yuanjie Wang Shuning Cheng Xiaoyan Zhong Yong Xu Xiaozhong Zhou Zengli Zhang Zhuang Liu Liang Cheng 2023Acta Pharmaceutica Sinica B2023,13,4:0
12Synergistic effects of alginate oligosaccharide and cyanidin-3-O-glucoside on the amelioration of intestinal barrier function in mice显示文摘Emerging evidence shows that dietary oligosaccharides are important prebiotics that can improve intestinal flora,while dietary polyphenols can act directly on intestinal cells.However,information about their synergistic effects on gut health is still limited.In this study,alginate oligosaccharide(AOS)and cyanidin-3-O-glucoside(C3G)were selected as a common marine plant oligosaccharide and terrestrial plant polyphenol,respectively,to study their effects on intestinal health.The results show that,in comparison to their individual applications,the combination of AOS and C3G(mass ratio,3:1)displayed a stronger ability to up-regulate the expression of tight junction proteins,while enhanced intestinal epithelial barrier was also observed and levels of mucin-2 andβ-defensins were simultaneously increased in the intestinal mucus.Interestingly,the secretion of immunoglobulin A and immune-related cytokines were approximately doubled by the AOS+C3G mixture.In addition,the AOS+C3G mixture was found to be more conducive to the positive transformation of intestinal flora,which stimulated the growth of beneficial bacteria Akkermansia,Lachnospiraceae and Feacalibaculum while inhibiting the growth of harmful bacteria Helicobacter and Turicibacter.The data generated herein thus suggests that dietary oligosaccharides and dietary polyphenols may be more beneficial to intestinal health when applied in combination than their individual effects alone.Jie Li Yuanjie Guo Liyuan Ma Yixiang Liu Chao Zou Huiying Kuang Bing Han Yingliang Xiao Yanbo Wang 2023Food Science and Human Wellness2023,12,6:0
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