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[anti-inflammatory effect of caragana microphylla lam].caragana microphylla can antagonize the inflammation induced by carrageenin, hot water and croton oil. it can also inhibit the proliferation of granuloma, blood capillary permeability, phagocytic function of mononuclear phagocyte system, and synthesis or release of pge2 at the inflamed part.19938216809
[ecological process of vegetation restoration in caragana mirophylla sand-fixing area].the occurrence and development of artificial vegetation after mobile sandy dunes being fixed by adopting straw check combining with seeding caragana microphylla were studied. especially the process of species invasion and the changes of community structure in 35 years were analyzed in detail. the results showed that the species richness of artificial community of c. microphylla increased, from 5 species (in 2 years) to 23 species in 35 years. in the structure concerning plant lifeform, therophyt ...200011767630
[physioecological characteristics of four dominant plant species in kerqin sandy land].the photosynthetic and water physioecological characteristics of four dominant species, caragana microphylla, artemisia halodendron, artemisia frigida and populus spp(a hybrid), in kerqin sandy land were compared. the photosynthesis rates of c. microphylla, a. halodendron, and populus spp. reached highest at 6:00, rapidly fall at 8:00, remained at low level from 8:00 to 16:00, then rose slowly after 16:00. the photosynthesis rate of a. frigida was comparatively low at 6:00, so the range of decli ...200011767683
[a comparative study on drought-resistance of four plant species in kerqin sandy land].the water physio-ecological index and photosynthetic rate of four plant species, caragana microphylla, amorpha fruticosa, artemish halodendron, and lespedeza bicolor, in kerqin sandy land were determined. the results showed that c. microphylla has the lowest leaf water potential and the highest water-maintainance, bound water/free water ratio, and water utilization efficiency. its drought-resistance is the strongest. amorpha fruticosa was contrary to caragana microphylla, and its drought-resista ...200212624989
[soil moisture dynamics under artificial caragana microphylla shrub].applying the methods of deducing time series from vegetation space alignment, we analyzed the spatial and temporal variation features of soil moisture under artificial caragana microphylla shrubs built in 1984, 1987, 1995, 1999. the results showed that affected by mechanical composition of mobile sandy dunes, the soil of sandy land was mainly composed of sandy particle, and the particles of > 0.01 mm were accounted for 97%. the withered moisture was 1.55%. the field waterhold capacity was 5.5%, ...200212682949
changes in soil properties after establishment of artemisia halodendron and caragana microphylla on shifting sand dunes in semiarid horqin sandy land, northern china.in the semiarid horqin sandy land of northern china, establishment of artificial sand-fixing shrubs on desertified sandy lands is an effective measure to control desertification and improve the regional environment. caragana microphylla lam. and artemisia halodendron turcz. ex bess. are two of the dominant native shrub species, which are adapted well to windy and sandy environments, and thus, are widely used in revegetation programs to control desertification in horqin region. to assess the effe ...200516025199
[effects of different cutting system on main typical steppe populations in inner mongolia].twelve main typical steppe populations in inner mongolia were selected to investigate the effects of different cutting system on their aboveground standing biomass. the results showed that the test populations could be categorized into 3 groups, i.e., (1) group with decreasing biomass, which included leynzus chinensis, agropyron michnoi, caragana microphylla and carex korshinskyi, with l. chinensis and c. microphylla as the representatives. the average aboveground standing biomass of l . chinens ...200516515182
[water balance of different density artificial caragana microphylla shrubs in horqin sand land].employing water balance equation, this paper estimated the evapotranspiration of different density caragana microphylla shrubs during their growing season. the results showed that during this season, the soil water content under artificial c. microphylla shrubs decreased with their increasing planting density. the average soil water content of 0.5 m x 1 m and 1 m x 2 m density artificial c. microphylla shrubs was below wilting humidity (1.55%), while that of 2 m x 2 m density and natural shrubs ...200616689229
antinociceptive activity and chemical composition of constituents from caragana microphylla seeds.this investigation was undertaken to ascertain the antinociceptive activity of caragana microphylla lam. seeds and isolate and characterize the constituents. antinociceptive activity was screened using acetic acid-induced abdominal constriction in icr mice. the 75% ethanol extract and some fractions showed analgesic activity, but the antinociceptive activity of chloroform fraction was the strongest and was more productive than other fractions. seven compounds were isolated from it and identified ...200716707255
[determination of metal elements in six kinds of desert plants in inner mongolia by icp-aes].in the present paper, the contents of metal elements from six kinds of desert plants, namely haloxylon ammodendron, caragana microphylla, ammopiptanthus mongolicus, salix bordensis, elaeagnus angusti folia, and salix psammophila in inner mongolian were determined by icp-aes technique. the recovery ratio obtained by standard addition method ranged between 94.98% and 120.25%, and the rsd was lower than 3.4%. the results of determination showed that the major elements ca, k, mg, na and al, and trac ...200616826923
[studies on chemical constituents from roots of caragana microphylla].to study the chemical constituents in roots of caragana microphylla.200717608223
[characteristics of caragana microphylla sap flow and water consumption under different weather conditions on horqin sandy land of northeast china].employing heat balance dynamax packaged sap flow measuring system and automatic weather recording system, the sap flow of artificial caragana microphylla community on horqin sandy land of northeast china was monitored consecutively in 2006, and the photosynthetically effective radiation, air temperature, relative humidity and wind velocity were measured synchronously. according to the manual records of weather conditions, four most representative weather conditions were gathered up to analyze th ...200718163294
different mesorhizobium species associated with caragana carry similar symbiotic genes and have common host ranges.fourteen strains representing 11 caragana-nodulating mesorhizobium genomic species were identified as representing mesorhizobium amorphae, mesorhizobium huakuii, mesorhizobium septentrionale and groups related to mesorhizobium plurifarium, mesorhizobium temperatum, mesorhizobium tianshanense and mesorhizobium mediterraneum by sequencing of the 16s rrna gene, 16s-23s internal transcribed spacer, partial housekeeping reca gene, and previously performed sodium dodecyl sulfate polyacrylamide gel ele ...200818422620
[crust development and subsurface soil properties under dominant shrubs in the process of dune restoration, horqin sand land].soil crust is a common and widespread phenomenon in desert areas all over the world due to its extraordinary ability to survive desiccation and extreme temperatures, high ph and salinity. despite its unassuming appearance, biological soil crusts play a significant role in desert ecosystems, including involvement in the process of formation, stability and fertility of soil, preventing soil erosion by water or wind, increasing the possibility of vascular plant colonization, and being responsible f ...200818637357
mesorhizobium caraganae sp. nov., a novel rhizobial species nodulated with caragana spp. in china.five rhizobial strains representing the largest group in the genus mesorhizobium associated with caragana spp. in china were characterized taxonomically. phylogenetic analysis based on 16s rrna gene sequences indicated that these microsymbionts belonged to the genus mesorhizobium, with mesorhizobium tianshanense usda 3592(t), mesorhizobium temperatum sdw018(t) and mesorhizobium mediterraneum upm-ca36(t) as the closest neighbours (>/=99.5 % 16s rrna gene sequence similarity). genotypic fingerprin ...200818984708
[effect of aqueous extracts on seed germination and seedling growth between glycyrrhiza uralensis and caragana microphylla].to study the interspecies allelopathy of glycyrrhiza uralensis and caragana microphylla and reveal the relationship between different interactions and provided the theory reference for their application of compounding planting pattern in practice.200819149247
[soil moisture dynamics of artificial caragana microphylla shrubs at different topographical sites in horqin sandy land].based on the investigation data of vegetation and soil moisture regime of caragana microphylla shrubs widely distributed in horqin sandy land, the spatiotemporal variations of soil moisture regime and soil water storage of artificial sand-fixing c. microphylla shrubs at different topographical sites in the sandy land were studied, and the evapotranspiration was measured by water balance method. the results showed that the soil moisture content of the shrubs was the highest in the lowland of dune ...200919637591
mesorhizobium shangrilense sp. nov., isolated from root nodules of caragana species.five strains of bacteria isolated from nodules of caragana bicolor and caragana erinacea in yunnan province of china were classified within the genus mesorhizobium in the class alphaproteobacteria. the highest degree of 16s rrna gene sequence similarity was determined to be to mesorhizobium loti lmg 6125(t) (99.7 %) and mesorhizobium ciceri upm-ca7(t) (99.7 %). polyphasic taxonomic methods including sds-page of whole-cell soluble proteins, comparative housekeeping sequence analysis of atpd, glni ...200919643905
rhizobium alkalisoli sp. nov., isolated from caragana intermedia growing in saline-alkaline soils in the north of china.three rhizobial strains (ccbau 01393(t), ccbau 01389 and ccbau 03239) isolated from nodules of caragana intermedia grown in saline-alkaline soils in the north of china had identical 16s rrna genes that showed 99.7 and 99.5 % sequence similarities with those of rhizobium huautlense so2(t) and rhizobium galegae usda 4128(t), respectively. phylogenies of the housekeeping genes atpd, reca and glnii confirmed their distinct position, differing from recognized rhizobium species. sds-page of whole-cell ...200919643906
[characterization of soil microbial community function and structure in rhizosphere of typical tree species and the meaning for environmental indication in the loess plateau].determination of the soil microbial community structure in rhizosphere of typical tree species in the loess plateau can be of great theoretical significance for correctly assessing the characteristics of soil ecological rehabilitation of the loess plateau. in this study,spore density analysis, microbial cultivation and biolog were employed to evaluate the amf spore density and soil microbial community diversity under four tree species with vesicular-arbuscular mycorrhizae in ecological rehabilit ...200919799313
triterpenoid saponins from the seeds of caragana microphylla.two new triterpenoid saponins, namely caraganoside c (1) and caraganoside d (2), were isolated from the seeds of caragana microphylla. their structures were elucidated on the basis of spectroscopic analyses, including homo- and hetero-nuclear correlation nmr experiments (cosy, hsqc and hmbc). both 1 and 2 exhibited moderate inhibitory activity against no production in lps-stimulated raw264.7 cells with ic(50) values of 26.4 ++m and 32.2 ++m, respectively. in addition, 1 showed weak cytotoxicity ...201121725805
Effects of elevated CO2 and N addition on growth and N2 fixation of a legume subshrub (Caragana microphylla Lam.) in temperate grassland in China.It is well demonstrated that the responses of plants to elevated atmospheric CO(2) concentration are species-specific and dependent on environmental conditions. We investigated the responses of a subshrub legume species, Caragana microphylla Lam., to elevated CO(2) and nitrogen (N) addition using open-top chambers in a semiarid temperate grassland in northern China for three years. Measured variables include leaf photosynthetic rate, shoot biomass, root biomass, symbiotic nitrogenase activity, a ...201122046376
genetic variability and differentiation of caragana microphylla populations as revealed by rapd markers.genetic variability in random amplified polymorphic dna (rapd) was studied in 90 individuals of caragana microphylla, an outcrossing perennial shrub species, from five natural populations sampled in inner mongolia steppe of china on a small scale. nineteen selected primers were used to amplify dna samples, and totally 225 bands were detected. the percentage of polymorphic bands within populations ranged form 58.22% to 63.56%, with an average of 60% at the population level and 71.11% at the speci ...201122117404
[Soil microbes functional diversity in sand-fixing Caragana microphylla communities in Horqin Sandy Land].Aimed to understand the soil microbes functional diversity in sand-fixing Caragana microphylla communities in Horqin Sandy Land, the soil microbial carbon sources metabolism diversity in 9-, 16-, and 26-yr-old C. microphylla plantations, natural C. microphylla community, and mov-ture, the average well color development (AWCD) and the capabilities of soil microbes in metabo-lizing carboxylic acids, carbohydrates, polymers, amino acids, amines, and aromatics were obvi-ously higher in moving sand d ...201122126041
two new triterpenoid saponins from caragana microphylla seeds.two new triterpenoid saponins, caraganins a and b (1 and 2), structurally characterized by a 22-oxo group, were isolated from the seeds of caragana microphylla lam., together with their n-butyl esters as artifacts (1a and 2a). their structures and configurations were elucidated by detailed spectroscopic analyses on the basis of nmr, ir, and ms data. compounds 1a and 2a exhibited potent antibacterial activity against staphylococcus aureus and bacillus subtilis with minimum inhibitory concentratio ...201322246665
[effects of mixed decomposition of populus simonii and other tree species leaf litters on soil properties in loess plateau].in this study, the leaf litters of populus simonii and other 11 tree species were put into soil separately or in mixture after grinding, and incubated in laboratory to analyze the effects of their decomposition on soil properties and the interactions between the litters decomposition. the decomposition of each kind of the leaf litters in soil increased the soil urease, dehydrogenase, and phosphatase activities and the soil organic matter and available n contents markedly, but had greater differe ...201222720599
genetic diversity and phylogeny of rhizobia isolated from caragana microphylla growing in desert soil in ningxia, china.rhizobia are soil bacteria with the capacity to induce nitrogen-fixing nodules on the roots or stems of legume plants. a total of 40 bacterial isolates from the root nodules of caragana microphylla growing in desert soil in ningxia, china, were analyzed for genetic diversity and phylogenetic position. these isolates were classified into 7 types of 16s ribosomal dna (rdna) using polymerase chain reaction-restriction fragment length polymorphism analysis. they were grouped into 4 clades, rhizobium ...201222782637
caragana fabr. promotes revegetation and soil rehabilitation in saline-alkali wasteland.to determine how plantations of caragana microphylla shrubs affect saline-alkali soil amelioration and revegetation, we investigated the vegetation and sampled soils from saline-alkali wasteland (saw), perennial caragana forestland (pcf), caragana forest after fire disturbance (cff). results showed that with the development of caragana fabr., highly dominant species of poaceae family, including elymus dahuricus, thermopsis lanceolata, stipa tianschanica, died out in pcf. moreover, papilionaceaef ...201323487984
effects of elevated co₂, warming and precipitation change on plant growth, photosynthesis and peroxidation in dominant species from north china grassland.warming, watering and elevated atmospheric co₂-concentration effects have been extensively studied separately; however, their combined impact on plants is not well understood. in the current research, we examined plant growth and physiological responses of three dominant species from the eurasian steppe with different functional traits to a combination of elevated co₂, high temperature, and four simulated precipitation patterns. elevated co₂ stimulated plant growth by 10.8-41.7 % for a c₃ legumi ...201424463932
diversity of endophytic bacteria in caragana microphylla grown in the desert grassland of the ningxia hui autonomous region of china.the diversity of endophytic bacteria in the sand-fixation plant caragana microphylla was investigated by amplified rdna restriction analysis and by sequence and phylogenetic comparisons of the 16s rrna genes. a total of 24, 19, and 17 operational taxonomic units were identified from 16s rdna libraries of the plant roots, stems and leaves, respectively. homology analysis revealed a 92-100% identity of bacterial 16s rdna sequences compared with those in the genbank database. the bacteria identifie ...201424781990
[soil carbon and nitrogen storage of different land use types in northwestern shanxi loess plateau].the soil organic carbon (soc) and total nitrogen (tn) storage under five different land use patterns, i. e. , poplar and caragana microphylla plantation, c. microphylla artificial shrubland, poplar plantation, bare land and cropland were studied in the hilly [ness plateau of northwestern shanxi. the results showed that the contents, densities and storage of soc and tn varied remarkably under the different land-use patterns. soil carbon and nitrogen contents and storage in the 0-20 cm soil layer ...201425011285
[genetic diversity of rhizobia isolated from shrubby and herbaceous legumes in shenmu arid area, shaanxi, china].legume, with a strong resistance to the adverse environmental conditions, is one of pioneer plants in the desert region and plays an important role in the protection of the ecological environment. in this study, the symbiosis of rhizobia associating with shrubby and herbaceous legumes in shenmu area, shaanxi, china was characterized by the 16s rrna pcr-rflp and sequence analysis of involved genes. a total of 55 strains were isolated and purified, including 30 strains from the shrubby legume amor ...201425223023
[species-associated differences in foliage-root coupling soil-reinforcement and anti-erosion].this paper took four kinds of common soil and water conservation plants of the study area, caragana microphylla, salix psammophila, artemisia sphaerocephala and hippophae rhamnides at ages of 4 as the research object. thirteen indicators, i.e., single shrub to reduce wind velocity ration, shelterbelt reducing wind velocity ration, community reducing wind velocity ration, taproot tensile strength, representative root constitutive properties, representative root elasticity modulus, lateral root br ...201526094454
reducing environmental risk of excessively fertilized soils and improving cucumber growth by caragana microphylla-straw compost application in long-term continuous cropping systems.continuous cropping is a common agricultural practice in the word. in china, farmers often apply excessive fertilizers to fields in an attempt to maintain yields in continuous cropping systems. however, this practice often results in high nutrient concentrations in soils, nutrient pollution in leaching water and more crop disease. here, we investigated 8 different soils from continuously cropped cucumbers in northern china that grouped into those with extremely high nutrient levels (ehnl) and th ...201626657371
impacts of leguminous shrub encroachment on neighboring grasses include transfer of fixed nitrogen.shrub encroachment induced by global change and human disturbance strongly affects ecosystem structure and function. in this study, we explore the degree to which invading leguminous shrubs affected neighboring grasses, including via the transfer of fixed nitrogen (n). we measured n concentrations and natural abundance (15)n of shoot tissues from three dominant grasses from different plant functional groups across seven distances along a local transect (up to 500 cm) to the leguminous shrub, car ...201626747268
drought responses of three closely related caragana species: implication for their vicarious distribution.drought is a major environmental constraint affecting growth and distribution of plants in the desert region of the inner mongolia plateau. caragana microphylla, c. liouana, and c. korshinskii are phylogenetically close but distribute vicariously in mongolia plateau. to gain a better understanding of the ecological differentiation between these three species, we examined the leaf gas exchange, growth, water use efficiency, biomass accumulation and allocation by subjecting their seedlings to low ...201627217939
land-use conversion changes the multifractal features of particle-size distribution on the loess plateau of china.analyzing the dynamics of soil particle-size distributions (psds), soil nutrients, and erodibility are very important for understanding the changes of soil structure and quality after long-term land-use conversion. we applied multifractal rényi spectra (dq) and singularity spectra (f(α)) to characterize psds 35 years after conversions from cropland to shrubland with caragana microphylla (shrubland i), shrubland with hippophae rhamnoides (shrubland ii), forested land, and grassland on the loess p ...201627527201
effects of environmental factors on genetic diversity of caragana microphylla in horqin sandy land, northeast china.caragana microphylla (leguminosae) is a dominant climax semishrub species in northern china. we evaluated genetic variation within and among populations sampled from three different environmental gradients in horqin sandy land in northern china using intersimple sequence repeats markers and investigated the possible existence of relationships between genetic diversity and environmental factors. the results showed that c. microphylla have high genetic diversity, and environmental gradients affect ...201627878093
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