检索结果-南通市图书馆

Analysis of changes in the Panax notoginseng glycerolipidome in response to long-term chilling and heat

在线全文

学校读者我要写书评

暂无评论

Plant Diversity 2020年第2期42卷 102-110页

作者： Tao Liu Jia Chen Furong Xu Xiahong He shengchao yang Youyong Zhu Weiqi Li Guowei Zheng National&Local Joint Engineering Research Center on Germplasm Utilization&Innovation of Chinese Medicinal Materials in Southwest China Yunnan Agricultural UniversityKunmingChina Yunnan Key Laboratory of Dai and Yi Medicines Yunnan University of Chinese MedicineKunmingChina College of Chinese Material Medica Yunnan University of Chinese MedicineKunmingChina Germplasm Bank of Wild Species Kunming Institute of BotanyChinese Academy of SciencesKunmingChina

Long-term moderately high or low temperatures can damage economically important *** the present study,we treated Panax notoginseng,an important traditional Chinese medicine,with temperatures of 10,20,and 30℃for 30 *** then investigated *** glycerolipidome responses to these moderate temperature stresses using an ESI/MS-MS-based lipidomic *** long-term chilling(LTC,10℃)and long-term heat(LTH,30℃)decreased photo pigment levels and photosynthetic ***-induced degradation of photo pigments and glycerolipids may further cause the decline of photosynthesis and thereafter the senescence of ***-induced photosynthesis decline is attributed to the degradation of photo synthetic pigments rather than the degradation of chloroplastidic *** has an especially high level of lysophosphatidylglycerol,which may indicate that either *** phospholipase A acts in a special manner on phosphatidylglycerol(PG),or that phospholipase B *** ratio of sulfoquinovosyldiacylglycerol(SQDG)to PG increased significantly after LTC treatment,which may indicate that SQDG partially substitutes for *** LTC treatment,the increase in the degree of unsaturation of plastidic lipids was less than that of extraplastidic lipids,and the increase in the unsaturation of PG was the largest among the ten lipid classes *** results indicate that increasing the level of unsaturated PG may play a special role in maintaining the function and stability of *** photosystems after LTC treatment.

关键词： Extraplastidic lipids Glycerolipidome Long-term chilling stress Long-term heat stress Panax notoginseng Plastidic lipids

A Comprehensive Porosity Prediction Model for the Upper Paleozoic Tight Sandstone Reservoir in the Daniudi Gas Field, Ordos Basin

在线全文

学校读者我要写书评

暂无评论

Journal of Earth Science 2017年第6期28卷 1086-1094页

作者： Longwei Qiu shengchao yang Changsheng Qu Ningning Xu Qingsong Gao Xiangjin Zhang Xugang Liu Donghui Wang School of Geosciences China University of Petroleum Qingdao 266580 China State Key Laboratory for Mineral Deposits Research School of Earth Sciences and Engineering Nanjing University Nanjing 210046 China Exploration and Development Institute North-China Branch Company SINOPEC Zhengzhou 450006 China Tianjin Fanglian Technology Development Co. Ltd. Tianjin 300280 China

This paper investigated the porosity controlling factors for tight sandstone reservoir in the Daniudi gas field, Ordos Basin based on an integrated petrographic, petrophysical and geostatistical analyses, and proposed a comprehensive prediction model for reservoir porosity. Compaction was found to be a key factor for causing reservoir densification. The degree of sandstone compaction appears to be affected by grain sizes and sorting. Under normal compaction conditions（e.g., cement content less than 6%, and with no dissolution）, the variation in reservoir porosity with burial depth can be well correlated with grain compositions, grain sizes, and sorting. Based on qualitative examination of the controlling factors for reservoir porosities, geostatistics were used to quantify the effects of various geological parameters on reservoir porosities. A statistical model for comprehensive prediction of porosity was then established, on the assumption that the present reservoir porosity directly relates to both normal compaction and diagenesis. This model is easy to use, and has been validated with measured porosity data. The porosity controlling factors and the comprehensive porosity prediction can be used to quantify effects of the main controlling factors and their interaction on reservoir property evolution, and may provide a reference model for log interpretation.

关键词： tight sandstone reservoir controlling factors porosity Daniudi gas field Ordos Basin

Synthesis of pH-responsive triazine skeleton nano-polymer composite containing AIE group for drug delivery

在线全文

学校读者我要写书评

暂无评论

Frontiers of Materials Science 2021年第1期15卷 113-123页

作者： Yifan ZHANG Xueying PENG Xinbo JING Lin CUI shengchao yang Jianning WU Guihua MENG Zhiyong LIU Xuhong GUO School of Chemistry and Chemical Engineering Shihezi University/Key Laboratory of Green Process for Chemical Engineering/Key Laboratory for Chemical Materials of Xinjiang Uygur Autonomous Region/Engineering Center for Chemical Materials of Xinjiang BingtuanShihezi UniversityShihezi 832003China School of Medicine Shihezi UniversityShihezi 832003China State Key Laboratory of Chemical Engineering East China University of Science and TechnologyShanghai 200237China

We exploited a unique porous structure of the nano-covalent triazinepolymer(NCTP)containing aggregation-induced emission(AlE)group to achievecontrolled release and drug tracking in tumor acidic *** wassynthesized by the Friedel-Crafts alkylation and the McMurry coupling *** notonly had strong doxorubicin(DOX)-loading capacity due to its high specific surface areaand large pore volume,but also showed the significant cumulative drug release as aresult of the pH response of triazine *** was induced luminescence aftermass accumulation near tumor ***,it had excellent biocompatibility andobvious antineoplastic *** results demonstrate that NCTP as a utility-type drugcarrier provides a new route for designing the multi-functional drug delivery platform.

关键词： triazine skeleton structure pH response aggregation-induced emission drug dolivery

Comparative genomics reveals the diversification of triterpenoid biosynthesis and origin of ocotilloltype triterpenes in Panax

在线全文

学校读者我要写书评

暂无评论

Plant Communications 2023年第4期4卷 271-285页

作者： Zijiang yang Xiaobo Li Ling yang Sufang Peng Wanling Song Yuan Lin Guisheng Xiang Ying Li Shuang Ye Chunhua Ma Jianhua Miao Guanghui Zhang Wei Chen shengchao yang yang Dong National&Local Joint Engineering Research Center on Germplasm Innovation&Utilization of Chinese Medicinal Materials in Southwest China Yunnan Agricultural UniversityKunmingChina The Key Laboratory of Medicinal Plant Biology of Yunnan Province Yunnan Agricultural UniversityKunmingChina College of Food Science and Technology Yunnan Agricultural UniversityKunmingChina Guangxi Key Laboratory of Medicinal Resources Protection and Genetic Improvement Guangxi Botanical Garden of Medicinal PlantsNanningChina Yunnan Plateau Characteristic Agriculture Industry Research Institute KunmingChina

Gene duplication is assumed to be the major force driving the evolution of metabolite biosynthesis in *** from functional burdens,duplicated genes can mutate toward novelties until fixed due to selective ***,the extent to which this mechanism has driven the diversification of metabolite biosynthesis remains to be *** we performed comparative genomics analysis and functional characterization to evaluate the impact of gene duplication on the evolution of triterpenoid biosynthesis using Panax species as *** that whole-genome duplications(WGDs)occurred independently in Araliaceae and Apiaceae *** genomics revealed the evolutionary trajectories of triterpenoid biosynthesis in plants,which was mainly promoted by WGDs and tandem *** synthase(LAS)was likely derived from a tandemduplicate of cycloartenol synthase that predated the emergence of *** episodic diversifying selection,the LAS gene duplicates produced by g whole-genome triplication have given rise to triterpene biosynthesis in core eudicots through ***,functional characterization revealed that oxidosqualene cyclases(OSCs)responsible for synthesizing dammarane-type triterpenes in Panax species were also capable of producing ocotilloltype *** and biochemical evidence suggested that Panax genes encoding the above OSCs originated from the specialization of one OSC gene duplicate produced from a recent WGD shared by Araliaceae(Pg-b).Our results reveal the crucial role of gene duplication in diversification of triterpenoid biosynthesis in plants and provide insight into the origin of ocotillol-type triterpenes in Panax species.

关键词： gene duplication Panax genomes whole-genome duplications triterpenoid biosynthesis ocotilloltype triterpenes specialization

Multilayered regulation of secondary metabolism in medicinal plants

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

Molecular Horticulture 2023年第1期3卷 234-257页

作者： Yan Zhao Guanze Liu Feng yang Yanli Liang Qingqing Gao Chunfan Xiang Xia Li Run yang Guanghui Zhang Huifeng Jiang Lei Yu shengchao yang Key Laboratory of Medicinal Plant Biology of Yunnan Province National&Local Joint Engineering Research Center on Germplasms Innovation&Utilization of Chinese Medicinal Materials in Southwest ChinaYunnan Agricultural University650201 KunmingChina College of Agronomy&Biotechnology Yunnan Agricultural UniversityKunming 650201China Institute of Chinese Medicinal Materials Nanjing Agricultural UniversityNanjing 210095China Key Laboratory of Engineering Biology for Low‑Carbon Manufacturing Tianjin Institute of Industrial BiotechnologyChinese Academy of SciencesTianjin 300308China College of Agronomy Yunnan Urban Agricultural Engineering and Technological Research CenterKunming UniversityKunming 650214China

Medicinal plants represent a huge reservoir of secondary metabolites(SMs),substances with significant pharmaceutical and industrial ***,obtaining secondary metabolites remains a challenge due to their low-yield accumulation in medicinal plants;moreover,these secondary metabolites are produced through tightly coordinated pathways involving many spatiotemporally and environmentally regulated *** first regulatory layer involves a complex network of transcription factors;a second,more recently discovered layer of complexity in the regulation of SMs is epigenetic modification,such as DNA methylation,histone modification and small RNA-based mechanisms,which can jointly or separately influence secondary metabolites by regulating gene ***,we summarize the findings in the fields of genetic and epigenetic regulation with a special emphasis on SMs in medicinal plants,providing a new perspective on the multiple layers of regulation of gene expression.

关键词： Medicinal plants Secondary metabolism Multilayered regulation Transcription factors Epigenetic regulation

Overwhelming electrochemical oxygen reduction reaction of zinc-nitrogen-carbon from biomass resource chitosan via a facile carbon bath method

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

Chinese Chemical Letters 2020年第5期31卷 1207-1212页

作者： Libing Hu Feng Yu Fu Wang shengchao yang Banghua Peng Long Chen Gang Wang Juan Hou Bin Dai Zhi-Qun Tian Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan School of Chemistry and Chemical EngineeringShihezi UniversityShihezi 832003China School of Environmental Science and Engineering Shanghai Jiao Tong UniversityShanghai 200240China College of Science Key Laboratory of EcophysicsDepartment of PhysicsShihezi UniversityShihezi 832003China Collaborative Innovation Center of Sustainable Energy Materials Cuangxi Key Laboratory of Electrochemical Energy MaterialsGuangxi UniversityNanning 530004China Key Laboratory of New Processing Technology for Non-ferrous Metal and Materials Ministry of EducationNanning 530004China

Developing high efficiency and low cost electrocatalysts is critical for the enhancement of oxygen reduction reaction(ORR),which is the fundamental for the development and commercialization of renewable energy conversion ***,zinc-nitrogen-carbon(Zn-N-C)was prepared by using biomass resource chitosan via a facile carbon bath *** obtained Zn-N-C delivered a high specific surface area(794.7 cm^2/g)together with pore volume(0.49 cm^3/g).During the electrochemical evaluation of oxygen reduction reaction(ORR),Zn-N-C displayed high activity for ORR with an onset pote ntial E0=0.96 VRHE and a half wave potential E1/2=0.86 VRHE,which were more positive than those of the comme rcial 20 wt%Pt/C benchmark catalyst(E0=0.96 VRHE and E1/2=0.81 VRHE).In addition,the ZnN-C catalyst also had a better stability and methanol tolerance than those of the Pt/C catalyst.

关键词： Zinc-nitrogen-carbon Biomass resource chitosan Electrochemical performance Oxygen reduction reaction Carbon bath method

HMOD： An Omics Database for Herbal Medicine Plants

在线全文

学校读者我要写书评

暂无评论

Molecular Plant 2018年第5期11卷 757-759页

作者： Xiao Wang Jiajin Zhang Simei He Yuanni Gao Xiaoqin Ma Yun Gao Guanghui Zhang Ling Kui Wen Wang Ying wang shengchao yang yang Dong State Key Laboratory of Genetic Resources and Evolution Kunming Institute of Zoology Chinese Academy of Sciences Kunming 650223 People's Republic of China Kunming College of Life Science University of Chinese Academy of Sciences Kunming 650204 People's Republic of China School of Information Engineering Yunnan Agricultural University Kunming 650201 People's Republic of China State Key Laboratory of Conservation and Utilization of Bio-resources in Yunnan The Key Laboratory of Medicinal Plant Biology of Yunnan ProvinceNational & Local Joint Engineering Research Center on Germplasms Innovation & Utilization of Chinese Medicinal Materials in Southwest China Yunnan Agricultural University Kunming 650201 People's Republic of China Nowbio Biotech Inc. Kunming 650201 People's Republic of China Province Key Laboratory Biological Big Data College Yunnan Agricultural University Kunming 650201 People's Republic of China Key Laboratory of South China Agricultural Plant Molecular Analysis andGenetic Improvement South China Botanical Garden Chinese Academy of Sciences Guangzhou 510650 People's Republic of China

Dear Editor ,More than 50% of drugs are derived from chemical compounds that have been isolated from various plants （Fabricant and Farnsworth, 2001; Yarnell and Abascal, 2002）. With the development of sequencing technology and synthetic biology, we can obtain molecular information from the transcriptomic and genomic data of plants and then utilize bacteria to synthesize desired chemical compounds （Atanasov et al., 2015; Smanski et al., 2016）. Increasing numbers of researchers have started to publish omics data generated from herbal plants.

关键词：

RNA-seq analysis of Paris polyphylla *** roots identified candidate genes for saponin synthesis

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

Plant Diversity 2016年第3期38卷 163-170页

作者： Tao Liu Xiaoxian Li Shiqing Xie Ling Wang shengchao yang Yunnan Research Center on Good Agricultural Practice for Dominant Chinese Medicinal Materials Yunnan Agricultural University Kunming Institute of Botany Chinese Academy of Sciences

Paris polyphylla Smith ***(Franch.) Hand.-*** a rhizomatous,herbaceous,perennial plant that has been used for more than a thousand years in traditional Chinese *** is facing extinction due to *** are the major therapeutic components in Paris roots,the commercial value of which increases with *** date,no genomic data on the species have been *** this study,transcriptome analysis of an 8-year-old root and a 4-year-old root provided insight into the metabolic pathways that generate the *** Illumina sequencing technology,we generated a high-quality sequence and demonstrated de novo assembly and annotation of genes in the absence of prior genome *** 87,577 unique sequences,with an average length of 614 bases,were obtained from the root *** bioinformatics methods,we annotated approximately 65.51% of the unique sequences by conducting a similarity search with known genes in the National Center for Biotechnology Information's non-redundant *** unique transcripts were functionally classified using the Gene Ontology hierarchy and the Kyoto Encyclopedia of Genes and Genomes *** 3082 genes that were identified as significantly differentially expressed between roots of different ages,1518(49.25%) were upregulated and 1564(50.75%) were downregulated in the older *** pathway analysis predicted that 25 unigenes were responsible for the biosynthesis of the saponins *** data represent a valuable resource for future genomic studies on this endangered species and will be valuable for efforts to genetically engineer *** and facilitate saponin-rich plant development.

关键词： P.polyphylla var.yunnanensis Saponin pathway Differential expression Transcriptome analysis Expressed sequence tags

Submergence induced changes of molecular species in membrane lipids in Arabidopsis thaliana

在线全文

学校读者我要写书评

暂无评论

Plant Diversity 2016年第3期38卷 156-162页

作者： Mulan Wang Yunmei Shen Faqing Tao shengchao yang Weiqi Li Yunnan Research Center on Good Agricultural Practice for Dominant Chinese Medicinal Materials Yunnan Agriculture University Kunming 650201 China Key Laboratory for Plant Diversity and Biogeography of East Asia Kunming Institute of Botany Chinese Academy of Sciences Kunming 650201 China Department of Biology Honghe University Mengzi 661100 China Germplasm Bank of Wild Species Kunming Institute of Botany Chinese Academy of Sciences Kunming 650201 China

The composition of membrane lipids is sensitive to environmental *** is a type of stress often encountered by ***,how the molecular species of membrane lipids respond to submergence has not yet been *** this study,we used a lipidomic approach to profile the molecular species of membrane lipids in whole plants of Arabidopsis thaliana that were completely submerged for three *** plants survived one day of submergence,after which,we found that the total membrane lipids were only subtly decreased,showing significant decreases of monogalactosyldiacylglycerol(MGDG)and phosphatidylcholine(PC)and an increase of phosphatidic acid(PA);however,the basic lipid composition was *** contrast,three days of submergence caused plants to die,and the membranes deteriorated via the rapid loss of 96% of lipid content together with a 229% increase in *** turnover of molecular species from PG and MGDG to PA indicated that submergenceinduced lipid changes occurred through PA-mediated *** addition,molecular species of extraplastidic PG degraded sooner than plastidic ones,lyso-phospholipids exhibited various patterns of change,and the double-bond index(DBI)remained unchanged until membrane *** results revealed the unique changes of membrane lipids upon submergence and suggested that the major cause of the massive lipid degradation could be anoxia.

关键词： Submergence Anoxia stress Membrane lipids Lipidomics Arabidopsis thaliana