检索结果-南通市图书馆

The RING-H2 gene LdXERICO plays a negative role in dormancy release regulated by low temperature in Lilium davidii var. unicolor

引用

Horticulture Research 2023年第4期10卷 135-146页

作者： Xinyue Fan Xiaoman Zou Linlan Fu Yue Yang Min Li Chunxia Wang hongmei sun Key Laboratory of Protected Horticulture of Education Ministry College of HorticultureShenyang Agricultural UniversityShenyang 110866China National and Local Joint Engineering Research Center of Northern Horticultural Facilities Design and Application Technology Shenyang 110866China

Dormancy regulation is the basis of the sustainable development of the lily ***,basic research on lily dormancy is crucial for innovation in lily cultivation and *** studies revealed that dormancy release largely depends on abscisic acid(ABA)***,the key genes and potential regulatory network remain *** used exogenous ABA and ABA inhibitors to elucidate the effect of ABA on lily *** on the results of weighted gene coexpression network analysis(WGCNA),the hub gene LdXERICO was identified in modules highly related to endogenous ABA,and a large number of coexpressed genes were *** was induced by exogenous ABA and expressed at higher levels in tissues with vigorous physiological *** LdXERICO increased the low-temperature sensitivity of bulblets and accelerated bulblet *** rescued the ABA insensitivity of xerico mutants during seed germination in Arabidopsis,suggesting that it promotes seed dormancy and supporting overexpression studies on lily *** significant increase in ABA levels in transgenic Arabidopsis expressing LdXERICO indicated that LdXERICO played a role by promoting ABA *** generated three transgenic lines by overexpressing LdICE1 in Arabidopsis thaliana and showed that,in contrast to LdXERICO,LdICE1 positively regulated dormancy ***,qRT-PCR confirmed that LdXERICO was epistatic to LdICE1 for dormancy *** propose that LdXERICO,an essential gene in dormancy regulation through the ABA-related pathway,has a complex regulatory network involving temperature *** study provides a theoretical basis for further exploring the mechanism of bulb dormancy release.

关键词： release Arabidopsis network

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Synthesis, structure and catalytic behavior of yttrium complexes bearing a diaminobis(phenolate) ligand

引用

Chinese Science Bulletin 2009年第18期54卷 3231-3236页

作者： SONG FengKui YAN ChunHui sun hongmei YAO YingMing SHEN Qi ZHANG Yong Key Laboratory of Organic Synthesis of Jiangsu Province College of Chemistry Chemical Engineering and Materials ScienceSoochow University Suzhou 215123 China

Yttrium complexes stabilized by a diaminobis(phenolate) ligand were synthesized and their catalytic behavior was explored. Reaction of YCl3 with 1 equiv of LNa2 [L= Me2NCH2CH2N{CH2-(2-O-C6H2-tBu2-3, 5)}2] gave the yttrium chloride LYCl(THF) (1) in 92% yield. Complex 1 can be used as starting material to prepare the yttrium amido derivative. Complex 1 reacted with 1 equiv of LiNPh2 in THF to afford the expected yttrium amido complex LYNPh2 (2) in high yield. Both of complexes 1 and 2 have been well detected by elemental analysis, NMR spectra and single-crystal X-ray analysis. It was found that complex 2 can efficiently initiate the ring-opening polymerization of L-lactide and ε-caprolactone, and a controlled manner is observed in the former case.

关键词：催化性能钇稳定配合物合成单晶X射线衍射分析酰胺衍生物结构核磁共振光谱

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Bimetallic amine-bridged bis(phenolate) lanthanide aryloxides and alkoxides: synthesis, characterization, and application in the ring-opening polymerization of rac-lactide and rac-β-butyrolactone

引用

Science China Chemistry 2014年第8期57卷 1106-1116页

作者： NIE Kun FENG Tao SONG FengKui ZHANG Yong sun hongmei YUAN Dan YAO YingMing SHEN Qi Key Laboratory of Organic Synthesis of Jiangsu Province College of Chemistry Chemical Engineering and Materials ScienceSoochow University School of Chemistry and Chemical Engineering Taishan University

A series of neutral bimetallic lanthanide aryloxides p-C6H4[OLnL(THF)n]2 [Ln = Y(1), Yb(2), Sm(3)(n = 1) and La(4)(n = 2), L = Me2NCH2CH2N{CH2-(2-O–C6H2–tBu2-3,5)}2] and alkoxides p-C6H4CH2[OLnL(THF)]2 [Ln = Y(5), Yb(6)] supported by an amine-bridged bis(phenolate) ligand have been synthesized through one-pot reactions of Ln(C5H5)3(THF), LH2 with p-benzenediol and 1,4-benzenedimethanol, respectively. All complexes have been fully characterized by elemental analyses, single-crystal X-ray diffraction analysis, and IR and multi-nuclear NMR spectroscopy(in the cases of 1, 4 and 5). Study of their catalytic behavior revealed that, in general, all complexes are efficient initiators for the polymerization of rac-lactide(LA) and rac-β-butyrolactone(BBL), except for 3 and 4 in the case of BBL. The influence imposed by lanthanides of different ionic radii and initiating groups of different structures on the activity, controllability, and stereoselectivity of polymerization were systematically studied and compared. Highly heterotactic PLA(Pr up to 0.99) and syndiotactic PHB(Pr ≈ 0.81) with high molecular weight and narrow polydispersity formed and were automatically capped with hydroxyl functionality at both ends.

关键词： amine-bridged bis(phenolate) ligand bimetallic lanthanide aryloxides and alkoxides ring-opening polymerization,stereoselectivity

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Synthesis, structure of iron(Ⅲ)-containing imidazolium salts and their catalytic activity in the alkylation of aryl Grignard reagents

引用

Chinese Science Bulletin 2013年第4期58卷 493-499页

作者： XIA Ying YAN ChunHui LI Zhuang GAO HuanHuan sun hongmei SHEN Qi ZHANG Yong The Key Laboratory of Organic Synthesis of Jiangsu Province College of Chemistry Chemical Engineering and Materials Science Soochow University

A series of iron(III)-containing imidazolium salts of the general formula [DRim][FeX 4 ] (R=2,6-diisopropylphenyl, IPr, X=Cl, 1; R=IPr, X=Br, 2; R=tertbutyl, t Bu, X=Cl, 3; R=isopropyl, i Pr, X=Cl, 4; R=benzyl, Bn, X=Cl, 5; R=Bn, X=Br, 6) have been prepared in high yields via reactions of anhydrous ferric halides with equivalent of the corresponding N,N-dihydro- carby-limidazolium halides, where 2-6 are novel ones. All of the complexes were characterized by elemental analysis, Raman spectroscopy, electrospray ionization mass spectroscopy, and X-ray crystallography for 1 and 2. All of them were non-hygroscopic and air-stable, with four of them existing as solids (1-4) and two as liquids (5 and 6) at room temperature. A preliminary catalytic study on the coupling of 4-tolylmagnesium bromide with cyclohexyl bromide revealed that 1 and 3 possessed the highest activity. In comparison, 2, 4 and 5 exhibited moderate activity and the least active complex was 6.

关键词： Grignard试剂催化活性鎓盐咪唑结构式烷基化合成铁

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Overview of the epidemic characteristics of Mycoplasma pneumoniae infection around COVID pandemic

引用

iLABMED 2023年第3期1卷 148-157页

作者： hongmei sun Li Xiao Department of Bacteriology Capital Institute of PediatricsBeijingChina Department of Medicine University of Alabama at BirminghamBirminghamAlabamaUSA

Mycoplasma pneumoniae(***)is a cell wall‐less respiratory pathogen causing community‐acquired pneumonia and extrapulmonary *** is transmitted through close contact and shows periodic regional *** coronavirus disease(COVID‐19)pandemic interfered with the global spread of ***.A large‐scale post‐COVID outbreak is currently ongoing in *** help physicians better understand and manage this epidemic,we provide this review summarizing current knowl-edge on the pathogenesis,epidemic characteristics,macrolide resistance,diagnostic methods,and clinical treatment strategies for this pathogen.

关键词： diagnosis epidemic genotype macrolide resistance Mycoplasma pneumoniae treatment

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Efficacy Study on the Anti-Aging Emulsion Containing Carnosine and Centella Asiatica Extract

引用

China Detergent & Cosmetics 2020年第4期5卷 54-59页

作者： sun hongmei Dai Jieling Yang Xiuwei Academy for Advanced Interdisciplinary Studies Peking UniversityChina Infinitus(China)Co.Ltd. China State Key Laboratory of Natural and Biomimetic Drugs Department of Natural MedicineSchool of Pharmaceutical SciencePeking UniversityChina

A clinical study was conducted on the anti-aging effects of an emulsion containing carnosine and centella asiatica extract to provide a reference for the evaluation and development of anti-aging *** healthy females,aged 35~60,were divided into the test sample and placebo *** elasticity and wrinkles of the participants were analyzed before they used the emulsion and after they used it for 8 *** measurement results showed that after 8 weeks,skin elasticity and wrinkles in the members of the test sample group improved relative to those of the placebo *** effect assessment results showed that subjects did not experience adverse skin reactions,and their skin wrinkles showed ***-assessment results showed that the score of the total satisfaction of the test sample was 4.3,and 100%subjects are satisfied with the test *** containing carnosine and centella asiatica extract has a certain anti-aging effect.

关键词： carnosine centella asiatica extract anti-aging clinical study

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Dynamic characteristics of multi-arc thermal plasma in four types of electrode configurations

引用

Plasma Science and Technology 2022年第5期24卷 183-194页

作者： Yanjun ZHAO Guohua NI Wei LIU hongmei sun Siyuan SUI Dongdong LI Huan ZHENG Zhongyang MA Chi ZHANG Institute of Plasma Physics Chinese Academy of SciencesHefei 230031People’s Republic of China University of Science and Technology of China Hefei 230026People’s Republic of China Anhui Province Key Laboratory of Medical Physics and Technology Hefei 230031People’s Republic of China

The enhanced volume of thermal plasma is produced by a multi-arc thermal plasma generator with three pairs of discharge electrodes driven by three directed current power *** with a high-speed camera and an oscilloscope,which acquire optical and electric signals synchronously,the dynamic behavior of different kinds of multi-arc discharge adjusted by the electrode arrangement is ***,the spatial distributions and instability of the arc discharge are analyzed in four electrode configurations using the gray value statistical *** is found that the cathodic arcs mainly show a contracting state,while the anodic arcs have a trend of transition from shrinkage to a diffusion-like state with the increase of the discharge *** a result of the adjustment of the electrode configuration,a high temperature region formed in the center of the discharge region in configurations of adjacent electrodes with opposite flow distribution and opposite electrodes with swirl flow distribution due to severe fluctuation of *** discharge voltage rises with increased discharge current in this novel multi-arc plasma *** is also found that anode ablation mainly occurs on the conical surface at the copper electrode tip,while cathode erosion mainly occurs on the surface of the inserted tungsten and the nearby copper.

关键词： multi-arc electrode configuration dynamic character erosion

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

FDI Contributions to GDP in China, India and Brazil

引用

Chinese Business Review 2006年第2期5卷 61-64页

作者： Ping Shi Xinglong Xie hongmei sun Northwest University

The paper employs lineal regression models to probe into the contributions of FDI made to GDP in China, India and Brazil, finding out that in China FDI have made the greatest contribution to GDP, next is India and the last is Brazil. On this basis, it proposes that it is necessary and imperative to implement such strategies as revitalizing nation through science and technology, increasing investment in research, development and education, and improving the enterprise＇s own originality.

关键词： foreign direct investment economic growth absorbability and originality

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Study on the Efficacy of Men’s Facial Skin Cleaning and Care Cosmetics

引用

China Detergent & Cosmetics 2020年第3期5卷 63-67页

作者： Chen Yingyin Dai Jieling Yang Qiongli sun hongmei Infinitus(China)Co. Ltd.China

This paper has provided references for the evaluation of men’s facial skin cleanness and efficacy through the research on the cleanness of a men’s facial cleanser,the oil-controlling,moisturizing and brightening effects of a men’s skin lotion,and the people’s usage *** results showed that the skin grease and the liquid foundation could be effectively cleaned after using a facial *** using the lotion for 2 weeks,the oil content was significantly different from that before and in the blank group,showing a rapid oil control *** moisturizing effect could last until 4 *** was a significant difference in the change value of skin transdermal water loss rate,indicating that the skin barrier was improved to some *** was remarkable effect of skin glossiness after 4 weeks of continual use compared with the blank *** subjects’overall satisfaction with the skin after using the lotion was 86.7%through self-assessment.

关键词： male facial skin cleaning skin care efficacy

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Protective effects of Buyinqianzheng Formula on mitochondrial morphology by PINK1/Parkin pathway in SH-SY5Y cells induced by MPP^(+)

引用

Journal of Traditional Chinese Medical Sciences 2020年第3期7卷 274-282页

作者： Haojie Ma Zhenyu Guo Cong Gai Cuicui Cheng Jinkun Zhang Yuxin Zhang Luping Yang Wandi Feng Yushan Gao hongmei sun School of Chinese Medicine Beijing University of Chinese MedicineBeijing102488China

Objective:Buyinqianzheng Formula(BYQZF)is clinically employed in traditional Chinese medicine to treat Parkinson's disease(PD)by improving mitochondrial ***,the underlying mechanisms by which BYQZF affects mitochondrial morphology remain ***,we observed the effects of BYQZF on mitochondria from the perspective of the PINK1/Parkin ***:Cell survival rates were assessed by Cell Counting Kit-8 *** levels of PINK1 and Parkin mRNA were examined by *** expression levels of PINK1,PINK1-Ser228,Parkin,Parkin-Ser65,Drp1,and Drp1-Ser637 were examined by western ***1,Parkin,and MitoTracker?Red CMXRos(MTR)were stained by triple-labeled immunofluorescence,and observed under laser confocal ***:Cell survival rate,mitochondrial form factor,mean length and number of mitochondrial network branches,mitochondrial activity,m RNA expression levels of PINK1 and Parkin,and protein expression levels of PINK1,Parkin,and Drp1-Ser637 were reduced after 1-methyl-4-phenylpyridinium(MPP^(+))*** contrast,Pearson's correlation coefficients between PINK1 and Parkin,and between Parkin and MTR,as well as protein expression levels of PINK1-Ser228,Parkin-Ser65,and Drp1 increased significantly after MPP^(+) *** with BYQZF increased cell survival rate,mitochondrial form factor,mean length and number of mitochondrial network branches,mitochondrial activity,m RNA expression levels of PINK1 and Parkin,and expression of PINK1,Parkin,and Drp1-Ser637 ***'s correlation coefficients between PINK1 and Parkin,and between Parkin and MTR,as well as protein expression levels of PINK1-Ser228,Parkin-Ser65,and Drp1 decreased after BYQZF ***:These results demonstrate that BYQZF has a protective effect on mitochondrial molecular mechanisms in the PD cell model,and the mechanism is related to the PINK1/Parkin pathway.

关键词： BYQZF Parkinson's disease MPP^(+) Mitochondria PINK1/Parkin pathway

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：