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151篇 您的检索式:作者名="Gua"
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1TRANSLUCENT GREEN, an ERF Family Transcription Factor, Controls Water Balance in Arabidopsis by Activating the Expression of Aquaporin Genes显示文摘水是在几乎所有生活有机体的最丰富的分子。Aquaporins 是玩控制房间的水内容的批评 rolesin 的隧道蛋白质。这里,我们报导 AP2/EREBP 家庭抄写 factorin Arabidopsis thaliana 的鉴定,半透明的格林( TG )其在转基因的植物的 overexpression 给了提高的干旱忍耐并且使 leaves.TG 蛋白质成玻璃在原子核是局部性的,在 vitro 绑 DRE 和 GCC 元素,并且在酵母房间充当 transcriptional 使活跃之物。Microarray 分析揭示了 TG,五基因在之中编码 aquaporins 调整的 330 基因的一个总数。短暂表示试金证明 TG 直接绑在 threeaquaporin 基因的倡导者,例如 AtTIP1; 1, AtTIP2; 3,并且 AtPIP2; 2,直接显示那 TG 调整这些基因的表示。而且, AtTIP1 的 overexpression; 1 在转基因的 Arabidopsis 植物导致了使成玻璃的显型,类似于在 TG overexpression 线观察的那些。进野类型的叶子的水注射概括了 vitrifiedleaf 显型,它被从脉管的捆割掉水供应颠倒。一起拿,我们在通过直接激活 aquaporin genes.Key 词的表达式的 Arabidopsis 的数据 supportthat TG 控制水平衡:Danling Zhu Zhe Wu Guangyu Cao Jigang Li Jia Wei Tomohiko Tsuge Hongya Gua Takashi Aoyama Li-Jia Qu 2014Molecular Plant2014,7,4:8
2Research progress in the phytochemistry and biology of Ilex pharmaceutical resources显示文摘Ilex is a botanical source for various health-promoting and pharmaceutically active compounds that have been used in traditional Chinese medicine and food for thousands of years.Increasing interest in Ilex pharmaceutical and food resources has led to additional discoveries of terpenoids,saponins,polyphenols(especially flavonoids),glycosides,and many other compounds in various Ilex species,and to investigation of their chemotaxonomy,molecular phylogeny and pharmacol-ogy.In continuation of our studies on Ilex pharmacology and phylogeny,we review the phytochemistry,chemotaxonomy,molecular biology and phylogeny of Ilex species and their relevance to health-promotion and therapeutic efficacy.The similarity and dissimilarity between Ilex paraguariensis,the source plant of mate tea,and the source plants of large-leaved K udingcha(e.g.,Ilex kudingcha and Ilex latifolia)are discussed.It is essential to utilize emerging technologies in non-Camellia tea studies to promote the sustainable utilization of Ilex resources and the identification and development of novel compounds with potential health and clinical utility.Systems biology and '-omics'technologies will play an increasingly important role in pharmaceutical and food research on the bioactive compounds of Ilex species.Dacheng Hao Xiaojie Gua Peigen Xiao Zhanguo Liang Lijia Xu Yong Peng 2013Acta Pharmaceutica Sinica B2013,3,1:6
3Understanding plant drought resistance in a Mediterranean coastal sand dune ecosystem:differences between native and exotic invasive species显示文摘Aims Mediterranean coastal dunes are habitats of great conservation interest,with a distinctive and rich flora.In the last century,Acacia spp.,native from Australia,have been introduced in Portugal,with the objective of stabilizing sand dunes,and since have become dominant in numerous sand dune habitats.This invasion process led to the reduction of native plant species richness,changed soil characteristics and modified habitat’s microclimatic char-acteristics.The aim of this research was to typify and compare,in Mediterranean sand dune ecosystems,the ecophysiological responses to drought of Helichrysum italicum and Corema album,two native species,and Acacia longifolia,an exotic invasive spe-cies.We addressed the following specific objectives:(i)to com-pare water relations and water use efficiencies,(ii)to evaluate water stress,(iii)to assess water use strategies and water sources used by plants and(iv)to evaluate the morphological adaptations at leaf and phyllode level.Methods In order to obtain an integrative view of ecophysiological patterns,water relations and performance measuring methods have been applied:predawn(ψPD)and midday(ψMD)water potential,chloro-phyll a fluorescence,oxygen isotopic composition of xylem,rain and groundwater(δ18O)and leaf carbon isotopic discrimination(Δ13C).The leaf characteristics of the three species,as well as the histochemistry of non-glandular trichome cell walls,were also studied to identify morpho-traits related to drought resistance.Important Findings The results support our initial hypothesis:although A.longifolia clearly possesses a degree of resistance to water stress,such ability is provided by a different water strategy,when compared to native species.Natives relied on morphological adaptations to restrict water loss,whereas the invasive species adjusted the water uptake as a way to balance their limited ability of restricting water loss.We corroborate that woody native species(i)have a conservative water-saving strategy and minor seasonal variations relative to invasive species,(ii)use enriched water sources during drought periods,indicating different water sources and root systems com-paring with invasive species and(iii)present drought leaf morpho-functional adaptations related with limiting water loss.Comparing the physiological performance of invasive and native species can offer causal explanations for the relative success of alien plant invasions on sand dunes ecosystems.Cristina Antunes Ana Júlia Pereira Patrícia Fernandes Margarida Ramos Lia Ascensão Otília Correia Cristina Máguas 2018Journal of Plant Ecology2018,11,1:4
4Underwater robot sensing technology:A survey显示文摘Underwater robot technologies are crucial for marine resource exploration and autonomous manipulation,and many breakthroughs have been achieved with key indicators(e.g.,dive depth and navigation range).However,due to the complicated underwater environment,the state-of-the-art sensing technologies cannot handle all the needs of underwater observations.To improve the autonomous operating capacity of underwater robots,there is an urgent need to develop underwater sensing technology.Therefore,in this paper,we first introduce the development of underwater robot platforms.We then review some key sensing technologies such as underwater acoustic sensing,underwater optical sensing,underwater magnetic sensing,and underwater bionic sensing.Finally,we point out the challenges of underwater sensing technology and future directions in addressing these challenges,e.g.,underwater bionic sensing,new underwater material development,multisource information fusion,and the construction of general test platforms.Yang Cong Changjun Gua Tao Zhang Yajun Gao 2021Fundamental Research2021,1,3:3
5AN AB INITIO STU DY ON THE CORELATION BETWEEN THE ABSOLUTE CONFIGURATION AND THE CD SPECTRA OF ORGANIC PEROXIDES显示文摘Correlation between the absolute configuration and the CDspectra of organic peroxides was studied by ab initio method with a mo-d el moleeule CH3-O-O-CH3.For P form when 0°≤θ(twist angle of C-O-O-C)<90°, there is positive Cotton effect;when 90°<θ≤180°, there is nega-tive Cotton effect;the curve is bisignate at θ=90°.Jing Jiang LIU Gua Lin DUAN Chemistry Dept.,Nankai Univ.,Tianjin,300071 Xiao Tian Liang Institute of Materia Medica,Beijing,100050 1991Chinese Chemical Letters1991,2,3:2
6Emerging roles of non- coding RNAs in pancreatic βcell function and dysfunction显示文摘Gua)r C Jacovetti C Nesca V 2012Diabetes Obes Metab2012,14,3:1
7Micro-indentation and inverse analysis to characterize elastic/plastic graded materials显示文摘Gua Y Nakamura T 2003Mater Sci Eng A2003,345,12:1
8Constituents of Quinchamalium majus with potential antitubercular activity显示文摘Gua JQ Wang Y Franzblau SG 2004Z Naturforsch C2004,59,1112:1
9Determination of astragaloside Ⅳ in rat plasma by liquid chromatography electrospray ionization mass spectrometry 显示文摘GUA Y C WANG G J JPAUL F 2004J Chromatography B2004,801,:1
10Homogene- ous free radical polymerizations in supercritical CO2 显示文摘DESIMONE J GUA Z COMBES J 1993Macromolecules1993,26,:1
11Mammography density and the risk and detection of breast cancer显示文摘Boyd NF Gua H Martin LJ 2007N Engl J Med2007,356,:1
12Nitrogen uptake in relation to excess supply and its effects on the lichens Evernia prunastri (L.) Ach and Xanthoria parietina (L.) Th. Fr.显示文摘Gisela Gaio-Oliveira Lena Dahlman Kristin Palmqvist Maria Amélia Martins-Lou??o Cristina Máguas 2005Planta2005,,5:1
13Effect of wet and dry-jet wet spinning on the shear-induced orientation during the formation of ultrafiltration hollow fiber membranes显示文摘Qin J J Gua J Chung T S 0,,1:1
14Analysis of methylation- sensitive transcriptome indentifics GADD45a as a frequently methylated gene in breast cancer 显示文摘Wang W Huper G Gua Y 2005Oncogene2005,24,16:1
15Synthesis, characterization and luminescent properties of new highly luminescent or- ganic ligand and complexes of trivalent rare earth 显示文摘Xi P Gua X H Chen C F 2007Spectroc him A cta Part A2007,66,3:1
16Towards efficient extraction of notoginseng saponins from cultured cells of Panax notoginseng显示文摘Vongsangnak W Gua J Chauvatcharin S 2004Biochemical Engineering Journal2004,18,:1
17Effect of Cooling After Welding on Microstructure and Mechanical Properties of 12 Pct Cr Steel Weld Metals显示文摘Cai Gua'ng-jun Andren H O Svensson L E 1997Metallurgical and Materi- als Transactions A1997,28,7:1
18Towards feeicient extraction of notoginseng saponins from cultured cells of Panax notoginseng显示文摘Wanwipa Vongsangnak Jian Gua Somchai Chauvatcharin 2004Biochemical Engineering Journal2004,18,:1
19Dissolution-precipitation mechanism of self-propagating high- temperature synthesis of TiC-Ni cermet 显示文摘Xiao Guoqing Fan Quncheng Gua Meizhuan 2004Materials Science and Engineering2004,382,:1
20Preparation of activated carbons from oil palm stone chars by microwave induced carbon dioxide activation显示文摘Gua J Lua C 2000 1985Carbon1985,38,:1
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