检索结果-南通市图书馆

Genetic diversity of RNA viruses infecting invertebrate pests of rice

Science China(Life Sciences) 2024年第1期67卷 175-187页

作者： Haoran Wang Shufen Chao Qing Yan Shu Zhang Guoqing Chen Chonghui Mao Yang Hu Fengquan Yu Shuo Wang Liang Lv Baojun Yang Jiachun He Songbai Zhang Liangsheng Zhang Peter Simmonds Guozhong Feng State Key Laboratory of Rice Biology and Breeding China National Rice Research InstituteChinese Academy of Agricultural SciencesHangzhou 311400China State Key Laboratory of Agricultural Microbiology College of Life Science and TechnologyHuazhong Agricultural UniversityWuhan 430070China Institute of Plant Protection&Soil Fertilizer Hubei Academy of Agricultural SciencesWuhan 430064China Institute of Plant Protection Guizhou Academy of Agricultural SciencesGuiyang 550000China Institute of Plant Protection Liaoning Academy of Agricultural SciencesShenyang 110161China Sanya Agricultural Technology Extension and Service Centre Sanya 572000China College of Agriculture Yangtze UniversityJingzhou 434000China Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology Fujian Agriculture and Forestry UniversityFuzhou 350002China Genomics and Genetic Engineering Laboratory of Ornamental plants College of Agriculture and BiotechnologyZhejiang UniversityHangzhou 310012China Nuffield Department of Medicine Peter Medawar Building for Pathogen ResearchUniversity of OxfordOxford OX13SYUnited Kingdom

Invertebrate species are a natural reservoir of viral genetic diversity,and invertebrate pests are widely distributed in crop ***,information on viruses infecting invertebrate pests of crops is *** this report,we describe the deep metatranscriptomic sequencing of 88 invertebrate samples covering all major invertebrate pests in rice *** identified 296 new RNA viruses and 13 known RNA *** viruses clustered within 31 families,with many highly divergent viruses constituting potentially new families and *** the identified viruses,13 RNA viruses clustered within the Fiersviridae family of bacteriophages,and 48 RNA viruses clustered within families and genera of *** detected known rice viruses in novel invertebrate hosts at high ***,some novel RNA viruses have genome structures closely matching to known plant viruses and clustered within genera of several plant virus *** potential insect pathogenic RNA viruses were detected in invertebrate *** analysis revealed that host taxonomy plays a major role and geographical location plays an important role in structuring viral ***-species transmission of RNA viruses was detected between invertebrate *** identified viral genomes showed extensive variation for invertebrate viral families or ***,the large-scale metatranscriptomic analysis greatly expands our understanding of RNA viruses in rice invertebrate species,the results provide valuable information for developing efficient strategies to manage insect pests and virus-mediated crop diseases.

关键词： invertebrate species metatranscriptome viral diversity viral transmission viral genomes

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

Zinc in plants:Integrating homeostasis and biofortification

引用

Molecular Plant 2022年第1期15卷 65-85页

作者： Camilla Stanton Dale Sanders Ute Krämer Dorina Podar John Innes Centre Colney LaneNorwichNR47UHUK Molecular Genetics and Physiology of plants Ruhr University Bochum44801 BochumGermany Department of Molecular Biology and Biotechnology and Centre for Systems Biology Biodiversity and BioresourcesBabes-Bolyai University400084 Cluj-NapocaRomania

Zinc plays many essential roles in *** a strong Lewis acid that lacks redox activity under environ-mental and cellular conditions,the Zn2+cation is central in determining protein structure and catalytic function of nearly 10%of most eukaryotic *** specific functions of zinc have been elucidated at a molecular level in a number of plant proteins,wider issues abound with respect to the acquisition and distribution of zinc by *** important challenge is to understand how plants balance between Zn supply in soil and their own nutritional requirement for zinc,particularly where edaphic factors lead to a lack of bioavailable zinc or,conversely,an excess of zinc that bears a major risk of *** are the ultimate source of zinc in the human diet,and human Zn deficiency accounts for over 400000 deaths ***,we review the current understanding of zinc homeostasis in plants from the molecular and physiological *** provide an overview of approaches pursued so far in Zn biofortification of ***,we outline a"push-pull"model of zinc nutrition in plants as a simplifying *** summary,this review discusses avenues that can potentially deliver wider bene-fits for both plant and human Zn nutrition.

关键词： zinc biofortification Zn homeostasis cereals Arabidopsis barley wheat rice

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

Anti-oxidant and Anti-inflammatory Effects of Ethanol Extract from Polygala sibirica *** megalopha *** Lipopolysaccharide-Stimulated RAW264.7 Cells

引用

中国结合医学杂志:英文版 2023年第10期29卷 905-913页

作者： YANG Cheng-liu WANG Shi-bo HE Wen-ping LIU Jin-juan Key Laboratory of Biotechnology for Medicinal plants of Jiangsu Province School of Life ScienceJiangsu Normal UniversityXuzhouJiangsu Province221116China

Objective To investigate the anti-oxidant and anti-inflammatory effects of ethanol extract of Polygala sibirica *** megalopha Fr.(EEP)on RAW264.7 mouse *** RAW264.7 cells were pretreated with 0–200µg/mL EEP or vehicle for 2 h prior to exposure to 1µg/mL lipopolysaccharide(LPS)for 24 *** oxide(NO)and prostaglandin(PGE2)production were determined by Griess reagent and enzyme-linked immunosorbent assay(ELISA),*** mRNA levels of inducible nitric oxide synthase(iNOS),cyclooxygenase-2(COX-2),tumor necrosis factorα(TNF-α),interleukin-1beta(IL-1β),and IL-6 were determined using reverse transcription polymerase chain reaction(RT-PCR).Western blot assay was used to determine the protein expressions of iNOS,COX-2,phosphorylation of extracellular regulated protein kinases(ERK1/2),c-Jun N-terminal kinase(JNK),inhibitory subunit of nuclear factor Kappa B alpha(IκB-α)and *** was used to observe the nuclear expression of nuclear factor-κB p65(NF-κB p65).Additionally,the anti-oxidant potential of EEP was evaluated by reactive oxygen species(ROS)production and the activities of catalase(CAT)and superoxide dismutase(SOD).The 2,2-diphenyl-1-picrylhydrazyl(DPPH),hydroxyl(OH),superoxide anion(O2−)radical and nitrite scavenging activity were also *** The total polyphenol and flavonoid contents of EEP were 23.50±2.16 mg gallic acid equivalent/100 g and 43.78±3.81 mg rutin equivalent/100 *** EEP treatment(100 and 150µg/mL),there was a notable decrease in NO and PGE2 production induced by LPS in RAW264.7 cells by downregulation of iNOS and COX-2 mRNA and protein expressions(P<0.01 or P<0.05).Furthermore,with EEP treatment(150µg/mL),there was a decrease in the mRNA expression levels of TNF-α,IL-1βand IL-6,as well as in the phosphorylation of ERK,JNK and p38 mitogen-activated protein kinase(MAPK,P<0.01 or P<0.05),by blocking the nuclear translocation of NF-κB p65 in LPS-stimulated *** addition,EEP(100 and 150µg/mL)led

关键词： Polygala sibirica L.var megalopha Fr. anti-inflammatory anti-oxidant RAW264.7 cells lipopolysaccharide Chinese medicine

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

The transcriptional landscape of the developmental switch from regular pollen maturation towards microspore-derived plant regeneration in barley

引用

The Crop Journal 2024年第4期12卷 1064-1080页

作者： Anna Nowicka Martin Kovacik Anna Maksylewicz Przemysław Kopec Ewa Dubas Monika Krzewska Agnieszka Springer Robert E.Hoffie Diaaeldin S.Daghma Zbynek Milec Ales Pecinka Jochen Kumlehn Iwona Zur The Franciszek Górski Institute of Plant Physiology Polish Academy of Sciences Niezapominajek 2130-239 KrakówPoland Institute of Experimental Botany of the Czech Academy of Sciences Centre of Plant Structural and Functional GenomicsŠlechtitelu3177900 OlomoucCzech Republic Department of Cell Biology and Genetics Faculty of SciencePalacky UniversityŠlechtitelu°2777900 OlomoucCzech Republic Malopolska Centre of Biotechnology Jagiellonian University30-387 KrakówPoland Leibniz Institute of Plant Genetics and Crop Plant Research(IPK)Gatersleben Corrensstraße 306466 Stadt SeelandGermany Institute for Breeding Research on Horticultural Crops Julius Kühn Institute(JKI)-Federal Research Centre for Cultivated PlantsErwin-Baur Straße 2706484 QuedlinburgGermany Global Change Research Institute Czech Academy of Sciences Beˇlidla 986/4a60300 BrnoCzech Republic

Plant formation from in vitro-cultivated microspores involves a complex network of internal and environmental ***/doubled haploids(DHs)derived from in vitro-cultured microspores are widely used in plant breeding and genetic ***,the mechanism underlying the developmental switch from regular pollen maturation towards microspore-derived plant regeneration remains poorly ***,RNA-sequencing was employed to elucidate the transcriptional landscapes of four early stages of microspore embryogenesis(ME)in barley cultivars Golden Promise and Igri,which exhibit contrasting responsiveness to microspore-derived plant *** experiments revealed fundamental regulatory networks,specific groups of genes,and transcription factor(TF)families potentially regulating the developmental *** identified a set of candidate genes crucial for genotype-dependent responsiveness/recalcitrance to *** high-resolution temporal transcriptome atlas provides an important resource for future functional studies on the genetic control of microspore developmental transition.

关键词： Hordeum vulgare Marker gene Microspore embryogenesis Stress response Transcriptome analysis

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

Volatile metabolome and transcriptome reveal fragrance release rhythm and molecular mechanisms of Rosa yangii

引用

Journal of Integrative Agriculture 2023年第7期22卷 2111-2125页

作者： ZHOU Li-jun HUANG Run-huan LIU Ting-han LIU Wei-chao CHEN Yun-yi LÜPei-feng LUO Le PAN Hui-tang YU Chao ZHANG Qi-xiang Beijing Key Laboratory of Ornamental plants Germplasm Innovation&Molecular Breeding/National Engineering Research Center for Floriculture/Beijing Laboratory of Urban and Rural Ecological Environment/Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental plants of Ministry of Education/School of Landscape Architecture Beijing Forestry UniversityBeijing 100083P.R.China

Rose is a highly significant ornamental plant with substantial edible and medicinal value,cultivated worldwide primarily for perfume ***,Rosa yangii,a new species found in northwestern Yunnan,China,has drawn attention due to its strong sweet scented *** this study,the floral components of *** were extracted at different flowering stages using solid phase micro extraction(SPME)and analyzed through gas chromatography-mass spectrometry(GC-MS).A total of 131 volatile organic compounds(VOCs)were detected from ***,including 69 odor *** production and release of floral VOCs were the highest during the initial-open stage,making it the most suitable time for harvesting as a significant number of floral components were synthesized and *** analysis of the odor activity values(OAV)highlighted several key aromatic ingredients of ***,such as eugenol,methyleugenol,benzeneacetaldehyde and phenylethylalcohol,heptanal,decanal,(E)-2-hexen-1-yl acetate,caryophyllene,and *** and time-order gene co-expression networks(TO-GCN)revealed that VOCs and benzenoids/phenylpropanoids,along with associated genes,played a pivotal role in the overall floral regulatory network of *** and bHLH were identified as the essential regulatory factors governing the regulation of eugenol synthase(EGS)and isoeugenol synthase(IGS),consequently influencing the sweet scent of *** findings of this study provide a scientific foundation for enhancing fragrance through molecular breeding of ornamental ***,the study facilitated the development and utilization of this new plant’s essential oil material in various industries,including food storage,aromatherapy,cosmetic,and perfumery.

关键词： rose sweet fragrance SPME-GC-MS aroma VOCs TO-GCN

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

Antimycobacterial natural products from Moroccan medicinal plants: Chemical composition, bacteriostatic and bactericidal profile of Thymus satureioides and Mentha pulegium essential oils

引用

Asian Pacific Journal of Tropical Biomedicine 2016年第10期6卷 836-840页

作者： Marwa Chraibi Abdellah Farah Sara Lebrazi Oumaima El Amine Mohammed Iraqui Houssaini Kawtar Fikri-Benbrahim Laboratory of Microbial Biotechnology Faculty of Science and Technology Sass Sidi Mohamed Ben Abdellah University Laboratory of Aromatic plants Medicinal and Natural Substances National Institute of Medicinal and Aromatic PlantsPhytochemistry Department

Objective: To evaluate the susceptibility of Mycobacterium aurum and Mycobacterium smegmatis in vitro to the essential oils obtained from two medicinal plants: Thymus satureioides(T. satureioides) and Mentha pulegium(M. pulegium), and to study their chemical ***: The aerial parts of T. satureioides and M. pulegium(leaves and stems) were hydro-distillated using a Clevenger-type apparatus and essential oils were analyzed and identified by gas chromatography-mass spectrometry. Antimycobacterial screening of essential oils was performed on the basis of the inhibition zone diameter by disc diffusion method against two mycobacterial strains whereas the minimal inhibitory concentration and minimal bactericidal concentration were determined by using the micro-dilution ***: Chemical analysis of their aerial part's essential oils gave as major compounds,borneol(34.26%), carvacrol(31.21%) and thymol(3.71%) for T. satureioides and R(+)-pulegone(75.48%), carvone(6.66%) and dihydrocarvone(4.64%) for M. *** their antimycobacterial effect evaluation, using the micro-dilution method,indicated that minimal inhibitory concentration values of T. satureioides essential oil ranged from 0.062% to 0.015%(v/v) and from 0.125% to 0.031%(v/v) for M. pulegium respectively against Mycobacterium aurum and Mycobacterium ***: It is clearly evident from the results obtained that the Moroccan medicinal plants have great potential to be used as anti-tuberculosis agents. These findings may help scientists to undertake several research projects to discover useful natural product as new anti-tuberculosis drug.

关键词： Thymus satureioides Mentha pulegium Essential oil Chemical composition Antimycobacterial activity

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

Calcium-Regulated Transcription in plants

引用

Molecular Plant 2010年第4期3卷 653-669页

作者： Yael Galon Aliza Finkler Hillel Fromm Department of Molecular Biology and Ecology of plants Faculty of Life Sciences TeI-Aviv University 69978 TeI-Aviv Israel

The past two decades revealed a plethora of Ca^2＋-responsive proteins and downstream targets in plants, of which several are unique to plants. More recent high-throughput ＇omics＂ approaches and bioinformatics are exposing Ca^2＋-responsive cis-elements and the corresponding Ca^2＋-responsive genes. Here, we review the current knowledge on Ca^2＋-signaling pathways that regulate gene expression in plants, and we link these to mechanisms by which plants respond to biotic and abiotic stresses.

关键词： Transcription gene expression transcription factor (TF) calmodulin (CAM) calcium (Ca^2+) cis-element.

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

Genome-wide investigation of the bZIP transcription factor gene family in Prunus mume:Classification, evolution, expression profile and low-temperature stress responses

引用

Horticultural Plant Journal 2022年第2期8卷 230-242页

作者： Ping Li Tangchun Zheng Lulu Li Jia Wang Tangren Cheng Qixiang Zhang Beijing Key Laboratory of Ornamental plants Germplasm Innovation&Molecular Breeding National Engineering Research Center for FloricultureBeijing Laboratory of Urban and Rural Ecological EnvironmentEngineering Research Center of Landscape Environment of Ministry of EducationKey Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of Ministry of EducationSchool of Landscape ArchitectureBeijing Forestry UniversityBeijing 100083China

Prunus mume is an important woody plant that has high ornamental and economic value, widely distributed and used in landscape architecture in East Asia. In plants, basic(region) leucine zipper(bZIP) transcription factors play important regulatory roles in growth, development,dormancy and abiotic stress. To date, bZIP transcription factors have not been systematically studied in P. mume. In this study, 49 bZIP genes were first identified in P. mume, and the PmbZIP family was divided into 12 groups according to the grouping principles for the Arabidopsis thaliana bZIP family. For the first time, we constructed a detailed model of the PmbZIP domains(R-x_(3)–N-(x)_7-R/K-x_(2)-K-x_(6)-L-x_(6)-L-_(6)-L). Phylogenetic and synteny analyses showed that PmbZIPs duplication events might have occurred during the large-scale genome duplication events. A relatively short time of speciation and the finding that 91.84% of the bZIP genes formed orthologous pairs between P. mume and Prunus armeniaca provided evidence of a close relationship. Gene expression patterns were analysed in different tissues and periods, indicating that PmbZIP genes with the same motifs exhibited similar expression patterns. The gene expression results showed that PmbZIP31/36/41 genes played a more prominent role in the response to freezing stress than cold stress. The expression level of almost all subset Ⅲ genes was upregulated under freezing treatment, especially after cold exposure. We analysed the gene expression patterns of PmbZIP12/31/36/41/48 and their responses to low-temperature stress, which provided useful resources for future studies on the cold/freezing-tolerant molecular breeding of P. mume.

关键词： bZIP transcription factor Gene expression Low-temperature stress

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

Positive regulatory role of R2R3 MYBs in terpene biosynthesis in Lilium‘Siberia’

引用

Horticultural Plant Journal 2023年第5期9卷 1024-1038页

作者： Yanhong Guo Ziyu Guo Jian Zhong Yilin Liang Yuan Feng Peng Zhang Qixiang Zhang Ming Sun State Key Laboratory of Efficient Production of Forest Resources Beijing Key Laboratory of Ornamental Plants Germplasm Innovation&Molecular BreedingNational Engineering Research Center for FloricultureBeijing Laboratory of Urban and Rural Ecological EnvironmentKey Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of Ministry of EducationSchool of Landscape ArchitectureBeijing Forestry UniversityBeijing 100083China

Terpenoids are the main components contributing to the fragrance of Lilium‘Siberia’,and LiTPS2 plays a critical role in the biosynthesis of *** the major terpene synthases in Lilium‘Siberia’have been identified,how these TPS genes are transcriptionally regulated remains elusive in this distinguished *** study aimed to identify transcription factors that regulate the terpene synthesis in Lilium,and disclose the related underlying transcriptional regulation *** this study,we identified three R2R3-MYB TFs—LiMYB1,LiMYB305 and LiMYB330,which were involved in regulating the biosynthesis of terpenes in Lilium‘Siberia’.Quantitative real-time PCR showed spatial and temporal expression patterns consistent with the emission patterns of terpene *** LiMYB1,LiMYB305 and LiMYB330were overexpressed in flowers,the release of some main monoterpenes,such as linalool and ocimene,as well as the expression of TPS genes,especially for LiTPS2,were enhanced.A virus-induced gene silencing(VIGS)assay showed that silencing these three LiMYBs decreased the level of monoterpenes by down-regulating the expression of the TPS *** yeast one-hybrid and transient expression assays indicated that all three LiMYBs could bind to and activate the promoter of ***,the yeast two-hybrid assay verified that LiMYB1 could interact with LiMYB308 and LiMYB330,indicating their synergistic roles in the regulation of floral terpene *** general,these results indicated that LiMYB1,LiMYB305,and LiMYB330 might play essential roles in terpene biosynthesis in Lilium and would provide a new perspective for the transcriptional regulation of volatile terpenes in flowers.

关键词： Lilium R2R3-MYB Expression analysis Terpenes Regulation

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

Experimental study on hybridization of a PV–TEG system for electrical performance enhancement using heat exchangers,energy,exergy and economic levelized cost of energy(LCOE)analysis

引用

Clean Energy 2023年第4期7卷 808-823页

作者： Mohammed A.Qasim Vladimir I.Velkin Sergey E.Shcheklein Nuclear Power plants and Renewable Energy Sources Department Ural Federal University620002 YekaterinburgRussia Department of Projects and Engineering Services Ministry of HealthBaghdad 10047Iraq

The concept of employing thermoelectric generators(TEGs)to recover energy from waste heat has gained popularity,with applications that range from milliwatt to kilowatt levels of output *** this study,a hybrid photovoltaic panel and thermoelectric generator(HPVTEG)system consisting of an integrated heat exchanger,a commercial polycrystalline silicon photovoltaic(PV)panel and a commercial bismuth telluride TEG was ***,TE components can be used to cool PV modules,increasing their output power via the Seebeck *** main finding is that the hybrid system has a reduced average temperature of 16.01°*** average power of the stand-alone PV panel is 28.06 W,but that of the HPVTEG system is 32.76 W,which is an increase of 4.7 *** conversion efficiency and power of the hybrid system increased by 16.7%and 16.4%,respectively,compared with a stand-alone PV *** HPVTEG system achieved an average exergy efficiency of 12.79%compared with 10.98%for a stand-alone PV *** to the calculation results,the levelized cost of energy(LCOE)of the stand-alone PV panel can range from 0.06741 to 0.10251 US$/kWh depending on how many days it is in operation,while the LCOE of the HPVTEG system can range from 0.06681 to 0.10160 US$/kWh.

关键词： PV TEG waste heat hybrid system heat exchanger

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

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：