Publications
| Title | Abstract | Year Filter | PMID(sorted ascending) Filter |
|---|
| [rna synthesis in the dormant embryo of fraxinus excelsior]. | 1976 | 64189 | |
| reversed-phase hptlc densitometric evaluation of fraxin in fraxinus excelsior leaves. | 2006 | 1298368 | |
| study of the anti-inflammatory activity of populus tremula, solidago virgaurea and fraxinus excelsior. | aqueous/alcoholic extracts of populus tremula, solidago virgaurea and fraxinus excelsior (components of phytodolor n) were tested individually and in 3 different combinations for anti-inflammatory activity using carrageenan induced edema and/or adjuvant induced arthritis of the rat paw. the tested combinations as well as the individual extracts significantly reduced the paw edema to varying degrees and also dose dependently inhibited the arthritic paw volume. the anti-inflammatory activity of th ... | 1992 | 1497695 |
| [anti-inflammatory, analgesic and antipyretic effect of various plant extracts and their combinations in an animal model]. | antiinflammatory, analgesic and antipyretic effects of various plant extracts and a combination thereof in animal models. the three main components comprising the efficacy of non-steroidal antiinflammatory drugs could be demonstrated for stw 1 in different animal models. the phytotherapeutic preparation, containing three individual plant extracts (populus tremula, solidago virgaurea, fraxinus excelsior) produced dose-dependent antiinflammatory, analgesic and antipyretic effects which were simila ... | 1989 | 2476136 |
| physicochemical and pharmacological properties of spray-dried powders from fraxinus excelsior leaf extracts. | 1989 | 2601362 | |
| ole e i: epitope mapping, cross-reactivity with other oleaceae pollens and ultrastructural localization. | ole e i is the major allergen derived from olive tree pollen (olea europaea) and it is composed of two polypeptides with molecular weights (mws) of 18 and 20 kd. a panel of six monoclonal antibodies (mabs) has been prepared and used to map antigenic determinants on this molecule. four epitope determinants have been identified on ole e i. using the purified mabs produced against ole e i, we have analyzed the common epitope determinants in olive (o. europaea) and different oleaceae pollens: ash (f ... | 1994 | 7515294 |
| evaluation of serum specific ige and skin responsiveness to allergenic extracts of oleaceae pollens (olea europaea, fraxinus excelsior and ligustrum vulgare) "in patients with respiratory allergy. | in the last few years an increasing interest for olea europaea (o.e.) pollen has been developed in many countries. several authors have studied the aerobiological, allergenic, epidemiological and clinical features of this pollinosis. the aim of our study was to evaluate cutaenous and serological responses to other oleaceae pollens allergens (ligustrum vulgare (l.v.) and fraxinus excelsior (f.e.) in patients with skin positivity to olea europaea pollen extract. twenty-three atopic rhinitis and/or ... | 1995 | 7631595 |
| a combination of populus tremula, solidago virgaurea and fraxinus excelsior as an anti-inflammatory and antirheumatic drug. a short review. | anti-inflammatory properties of populus tremula are mainly deduced from its components, the well investigated salicylates. solidago extracts have spasmolytic, antihypertensive and diuretic effects. fraxinus excelsior itself has hardly been investigated, but its coumarin components proved to have a variety of pharmacological properties, i.e. inhibition of t-cell activation and of the arachidonic acid cascade. phytodolor n (abbreviated as pd) is a combination of the above mentioned plants. various ... | 1995 | 7710441 |
| inhibition of dihydrofolate reductase activity by alcoholic extracts from fraxinus excelsior, populus tremula and solidago virgaurea. | aqueous-ethanolic extracts of fraxinus excelsior, populus, tremula and solidago virgaurea in a combination of 1: 3: 1 (v/v/v) are the components of the plant drug phytodolor n (abbreviated as pd), which exhibits antipyretic, analgesic and antirheumatic activity. similar to a broad variety of synthetic non-steroidal anti-inflammatories the mentioned plant extracts inhibit dihydrofolate reductase. the following concentrations as percentage in the test volumes represent the individual i50-values: f ... | 1995 | 7710442 |
| antioxidative properties of alcoholic extracts from fraxinus excelsior, populus tremula and solidago virgaurea. | aqueous-ethanolic extracts from fraxinus excelsior, populus tremula and solidago virgaurea inhibit biochemical model reactions representing inflammatory situations to various extents. these model reactions include xanthine oxidase, diaphorase in the presence of the autoxidizable quinone juglone, lipoxygenase and photodynamic reactions driven by riboflavin or rose bengal. the tested extracts are the components of the phytomedicine phytodolor n (abbreviated as pd) which possesses antipyretic, anal ... | 1995 | 7710443 |
| the main allergen of olea europaea (ole e i) is also present in other species of the oleaceae family. | three major pollen allergens from fraxinus excelsior, ligustrum vulgare and syringa vulgaris belonging to the oleaceae family were purified. monoclonal antibodies previously raised against the main allergen of olea europaea (ole e i) were used for their purification by affinity chromatography. the three new purified allergens were able to bind human ige from serum of olive-allergic patients in a way analogous to ole e i. crossed radioimmunoelectrophoresis of the four allergens, using anti-olive ... | 1993 | 8319129 |
| immunogold probes for light and electron microscopic localization of ole e i in several oleaceae pollens. | we investigated the immunolocalization of the olive major allergen ole e i and ole e i-like proteins in pollen from several oleaceae species [olive (olea europaea), ash (fraxinus excelsior), privet (ligustrum vulgaris), lilac (syringa vulgare), and forsythia (forsythia suspensa)]. crossreactions among different pollens were found in enzyme immunoassays. for immunolocalization with light microscopy we used the silver enhancement technique with three monoclonal antibodies (1d8, 10h1, and 16g2) tha ... | 1996 | 8609371 |
| occupational asthma and rhinitis caused by ash (fraxinus excelsior) wood dust. | an 18-year-old man who worked in a furniture factory reported rhinitis and asthma when he was exposed to ash wood dust. monitoring of the patient's peak expiratory flow rate (pefr) when off work and at work showed increased variations of pefr at work. basal pc20 methacholine was 1.41 mg/ml. a bronchial provocation test (bpt) with a 1:1000 w/v ash wood dust extract induced a dual asthmatic response with a 7.5-fold increase of nonspecific bronchial responsiveness. intradermal testing with ash wood ... | 1997 | 9105524 |
| effects of extracts from populus tremula l., solidago virgaurea l. and fraxinus excelsior l. on various myeloperoxidase systems. | extracts from populus tremula, solidago virgaurea and fraxinus excelsior are used as anti-inflammatory drugs. the effects of these extracts on myeloperoxidase (mpo), an enzyme liberated by activated granulocytes and known to produce the destructive agent hypochloric acid, were investigated. populus and fraxinus inhibited this enzyme, solidago was without effect. these results were obtained concordantly with four different mpo-assays (h2o2/mpo; x/xod/mpo; activated pmn; and elastase/alpha 1-pi-mp ... | 1996 | 9125284 |
| cross-reactivity of olea europaea with other oleaceae species in allergic rhinitis and bronchial asthma. | cross-reactivity between pollen extracts of four species of oleaceae was studied: olive (olea europaea), ash (fraxinus excelsior), privet (ligustrum vulgare), and lilac (syringa vulgaris). thus, 51 patients and 13 atopic controls were studied, by means of intracutaneous skin tests, histamine-release tests against the four extracts, and specific ige to o. europaea. the proteic content of the four extracts was assessed by sds-page and immunoblotting, and similarity of all the extracts studied was ... | 1997 | 9284982 |
| [pharmacological and clinical effectiveness of a fixed phytogenic combination trembling poplar (populus tremula), true goldenrod (solidago virgaurea) and ash (fraxinus excelsior) in mild to moderate rheumatic complaints]. | besides the well-known nonsteroidal antiinflammatory drugs (nsaid) for the treatment of rheumatic pain herbal medicine can also be applied successfully. plants with antirheumatic efficacy include fraxini cortex, populi cortex/folia and solidaginis herba. this review focuses on pharmacological and clinical efficacy of a combination of fraxinus cortex, populus cortex/folia and solidago herba. antiinflammatory and analgetic properties were shown in pharmacological tests. clinical studies conducted ... | 1999 | 10483692 |
| biochemical model reactions indicative of inflammatory processes. activities of extracts from fraxinus excelsior and populus tremula. | all processes of oxygen activation include very reactive intermediates. therefore, aerobic cells must cope with--and to some extent also adapt to--oxidative stress provoked for example by infections or intoxications, where these reactive intermediates accumulate. all inflammatory processes include such oxygen activating processes where reactive oxygen species (ros) are produced. dependent on the strength of these impact(s), several symptoms indicate the deviation from normal, steady-state metabo ... | 2000 | 10800635 |
| ash (fraxinus excelsior)-pollen allergy in central europe: specific role of pollen panallergens and the major allergen of ash pollen, fra e 1. | the role of ash (fraxinus excelsior) pollen as a cause of spring pollinosis in central europe has received little attention. it is not clear whether ash pollen is a primary cause of sensitization or whether it is implicated through cross-sensitization to other pollens. | 2000 | 11030372 |
| ozone exposure thresholds and foliar injury on forest plants in switzerland. | canton ticino in southern switzerland is exposed to some of the highest concentrations of tropospheric ozone in europe. during recent field surveys in canton ticino, foliar symptoms identical to those caused by ozone have been documented on native tree and shrub species. in europe, the critical ozone level for forest trees has been defined at an aot40 of 10 ppm.h o3 (10 ppm.h accumulated exposure of ozone over a threshold of 40 ppb) during daylight hours over a six-month growing season. the obje ... | 2001 | 11202736 |
| temperature response of leaf photosynthetic capacity in seedlings from seven temperate tree species. | seedlings of seven temperate tree species (acer pseudoplatanus l., betula pendula roth, fagus sylvatica l., fraxinus excelsior l., juglans regia l., quercus petraea matt. liebl. and quercus robur l.) were grown in a nursery under neutral filters transmitting 45% of incident global irradiance. during the second or third year of growth, leaf photosynthetic capacity (i.e., maximal carboxylation rate, vcmax, maximal photosynthetic electron transport rate, jmax, and dark respiration, rd) was estimate ... | 2001 | 11276416 |
| variation of gas exchange within native plant species of switzerland and relationships with ozone injury: an open-top experiment. | gas exchange and ozone-induced foliar injury were intensively measured during a 6-day period in mid-august 1998 on leaves of acer pseudoplatanus, betula pendula, corylus avellana, fagus sylvatica, fraxinus excelsior, morus nigra, prunus avium, prunus serotina, rhamnus cathartica, and viburnum lantana at a forest nursery site in canton ticino, switzerland. plants were grown in four open plots (aa), four open-top chambers receiving carbon-filtered (cf) air, and four receiving non-filtered (nf) air ... | 2001 | 11383335 |
| assessment of genetic structure within and among bulgarian populations of the common ash (fraxinus excelsior l.). | we analysed genetic variation within and between populations of the common ash from bulgaria in order to extract biological information useful in the context of conservation management of eastern european genetic resources of noble hardwood species. a total of 321 trees from three regions of bulgaria were typed at six highly polymorphic microsatellite loci. analysis of within-population inbreeding suggests an upper boundary value of 2.7% for the selfing rate. significant spatial genetic structur ... | 2001 | 11472530 |
| phenolics in selected european hardwood species by liquid chromatography-electrospray ionisation mass spectrometry. | the phenols in beech (fagus sylvatica), birch (betula pendula) and ash (fraxinus excelsior) wood dusts were compared using a mass spectrometer fitted with an electrospray ionisation interface with liquid chromatographic separation. hardwood dust is a carcinogen, and an analysis of the polyphenol profile is a useful method for identifying the dust source in workplace air. the mass spectrometer was operated in both the negative and positive ion modes. phenolic compounds were identified by comparin ... | 2001 | 11592645 |
| phenological modifications in plants by various edaphic factors. | various mechanical, chemical and physical soil analyses were carried out, in addition to weather observations, for 3 years at several sites along an oceanic-continental gradient in a fjord district in western norway. all the environmental factors observed were correlated with the spring and a few late-season phenophases of many native and cultivated woody plants and some herbs by simple, linear correlations and by stepwise multiple and partial analyses. different techniques were used to try and ... | 2001 | 11769320 |
| maternal inheritance of a chloroplast microsatellite marker in controlled hybrids between fraxinus excelsior and fraxinus angustifolia. | restriction fragment length polymorphism, polymerase chain reaction-restriction fragment length polymorphism and simple sequence repeat (ssr or microsatellites) analyses were performed to detect chloroplast dna polymorphisms between two ash species, fraxinus excelsior and f. angustifolia. only one ssr locus was found to be polymorphic, confirming the very close relatedness of these species. inheritance of this marker was studied in hybrids obtained from controlled crosses between the two tree sp ... | 2002 | 11918794 |
| twenty-five years of biomonitoring lead in the frankfurt/main area. | the present study is an example of the historical monitoring of heavy metals. the specific question it aims to explore is: to what extent has the lead content of selected organisms used for biomonitoring in frankfurt/main--one of the cities in germany most heavily affected by automobile traffic--changed as a result of legislation on leaded gasoline? data on the lead content of the moss species bryum argenteum hedw. from the years 1974, 1975 and 1978 and data on the lead content of the outer bark ... | 2002 | 12008294 |
| the allergen profile of ash (fraxinus excelsior) pollen: cross-reactivity with allergens from various plant species. | ash, a wind-pollinated tree belonging to the family oleaceae, is distributed world-wide and has been suggested as a potent allergen source in spring time. | 2002 | 12047442 |
| differences in chemical composition relative to functional differentiation between petioles and laminas of fraxinus excelsior. | differences in structural and nonstructural carbohydrates, lignin and chlorophyll, and rubisco (ribulose-1,5-bisphosphate carboxylase/oxygenase) activity between petioles and leaflets were studied along a canopy light gradient in fraxinus excelsior l., which has pinnate compound leaves and up to 20% of foliar biomass invested in petioles. long-term light conditions at the sampling locations were characterized by values of seasonal mean integrated quantum flux density (q(int), mol m(-2) day(-1)) ... | 1999 | 12651330 |
| stoichiometry of foliar carbon constituents varies along light gradients in temperate woody canopies: implications for foliage morphological plasticity. | foliar morphology and chemical composition were examined along a light gradient in the canopies of five deciduous temperate woody species, ranked according to shade-tolerance as populus tremula l. < fraxinus excelsior l. < tilia cordata mill. = corylus avellana l. < fagus sylvatica l. foliar carbon was divided between structural (cell-wall polysaccharides, lignin) and nonstructural (proteins, ethanol-soluble carbohydrates, starch) fractions. foliar morphology of all species was strongly affected ... | 1998 | 12651358 |
| an analysis of light effects on foliar morphology, physiology, and light interception in temperate deciduous woody species of contrasting shade tolerance. | maximum rubisco activities (v(cmax)), rates of photosynthetic electron transport (j(max)), and leaf nitrogen and chlorophyll concentrations were studied along a light gradient in the canopies of four temperate deciduous species differing in shade tolerance according to the ranking: populus tremula l. < fraxinus excelsior l. < tilia cordata mill. = corylus avellana l. long-term light environment at the canopy sampling locations was characterized by the fractional penetration of irradiance in the ... | 1998 | 12651418 |
| biomass investment in leaf lamina versus lamina support in relation to growth irradiance and leaf size in temperate deciduous trees. | foliar biomass investment in support and assimilative compartments was studied in four temperate deciduous tree species along a natural light gradient across the canopy. the species ranked according to shade tolerance as betula pendula roth. < populus tremula l. < fraxinus excelsior l. < tilia cordata mill. long-term light conditions at sampling locations were characterized as seasonal mean integrated quantum flux density (q(int), mol m(-2) day(-1)) estimated by a method combining hemispherical ... | 1999 | 12651556 |
| ozone air pollution and foliar injury development on native plants of switzerland. | the objectives of this study were to examine the foliar sensitivity to ozone exposure of 12 tree, shrub, and herbaceous species native to southern switzerland and determine the seasonal cumulative ozone exposures required to induce visible foliar injury. the study was conducted from the beginning of may through the end of august during 2000 and 2001 using an open-top chamber research facility located within the lattecaldo cantonal forest nursery in canton ticino, southern switzerland (600 m asl) ... | 2003 | 12804826 |
| ozone sensitivity of fagus sylvatica and fraxinus excelsior young trees in relation to leaf structure and foliar ozone uptake. | during the summer of 2001, 2-year-old fraxinus excelsior and fagus sylvatica plants were subjected to ozone-rich environmental conditions at the regional forest nursery at curno (northern italy). atmospheric ozone concentrations and stomatal conductance were measured, in order to calculate the foliar fluxes by means of a one-dimensional model. the foliar structure of both species was examined (thickness of the lamina and of the individual tissues, leaf mass per area, leaf density) and chlorophyl ... | 2003 | 12804831 |
| estimating seed vs. pollen dispersal from spatial genetic structure in the common ash. | spatial genetic structure was analysed with five highly polymorphic microsatellite loci in a romanian population of common ash (fraxinus excelsior l.), a wind-pollinated and wind-dispersed tree species occurring in mixed deciduous forests over almost all of europe. contributions of seed and pollen dispersal to total gene flow were investigated by analysing the pattern of decrease in kinship coefficients among pairs of individuals with geographical distance and comparing it with simulation result ... | 2003 | 12919486 |
| [the heterosides of the officinal ash (fraxinus excelsior) and of some related species, notably fraxinus ornus]. | 1960 | 13732803 | |
| xylem sap flow and drought stress of fraxinus excelsior saplings. | we report on diurnal and seasonal variations in sap flow rate and stem water potential of fraxinus excelsior l. saplings growing at the edge of a fraxino-aceretum forest in western germany. because of shallow soil, the trees were subjected to drought in summer. when soil water availability was not limiting, sap flow rate was related to changes in solar radiation and vapor pressure deficit. maximum transpiration rates per leaf area were 3.5-7.4 mmol m-2 s-1, and maximum daily totals were 1.7-3.3 ... | 2004 | 14676033 |
| the influence of nacl on leaf water relations and the proportions of k, na, ca, mg, and cl in epidermal cells of fraxinus excelsior l. | the influence of nacl on leaf water relations was investigated in 3-4-year-old, potted fraxinus excelsior l. trees. until midsummer, the application of nacl to the soil resulted in increased leaf water potentials (psi) and stomatal diffusive resistances (r(s)). the improved water status seems to be due to a latent injury rather than to an adaptive response of the plant because, despite the initial increases in psi and r(s), leaf necrosis developed in midsummer. altered hydraulic resistances were ... | 1986 | 14975846 |
| [polyclonal antisera to birch pollen allergen for the air allergen screening]. | the cross reactivity of the pollen allergens of birch (betula pendula), hazel (corylus avelana), alder (alnus glutinosa), wormwood (artemisia absinthium), oak (quercus robur) and ashtree (fraxinus excelsior) was studied by the methods of the enzyme immunoassay and gel diffusion with the use of rabbit polyclonal antisera (pas) prepared against birch pollen allergen. pas was shown to be greatly related to all above-mentioned allergens with the exception of oak pollen allergen. pas was found capabl ... | 2004 | 15024987 |
| ozone exposure-response relationships for biomass and root/shoot ratio of beech (fagus sylvatica), ash (fraxinus excelsior), norway spruce (picea abies) and scots pine (pinus sylvestris). | current-year seedlings of beech, ash, norway spruce and scots pine were exposed during one growing season to different, but moderate, ozone (o(3)) scenarios representative for switzerland (50, 85, 100% ambient, 50% ambient+30 nl l(-1)) in open-top chambers (otcs) and to ambient o(3) concentrations in the field. biomass significantly decreased with increasing o(3) dose in all species except for spruce. losses of 25.5% (ash), 17.4% (beech), 9.9% (scots pine) were found per 10 microl l(-1) h accumu ... | 2000 | 15092880 |
| study of the hypoglycaemic activity of fraxinus excelsior and silybum marianum in an animal model of type 1 diabetes mellitus. | the hypoglycaemic effect of the aqueous extracts of fraxinus excelsior (fe) seed and silybum marianum (sm) aerial part was investigated in normal and streptozotocin (stz) diabetic rats. after a single dose or 15 daily doses, oral administration of the aqueous extracts (20 mg/kg) produced a significant decrease of blood glucose levels in both normal and stz diabetic rats (p < 0.001). from the first week, the body weight was increased in normal rats (p < 0.05) and decreased in stz rats (p < 0.01) ... | 2004 | 15120454 |
| metal uptake by young trees from dredged brackish sediment: limitations and possibilities for phytoextraction and phytostabilisation. | five tree species (acer pseudoplatanus l., alnus glutinosa l. gaertn., fraxinus excelsior l., populus alba l. and robinia pseudoacacia l.) were planted on a mound constructed of dredged sediment. the sediment originated from a brackish river mouth and was slightly polluted with heavy metals. this preliminary study evaluated the use of trees for site reclamation by means of phytoextraction of metals or phytostabilisation. although the brackish nature of the sediment caused slight salt damage, ove ... | 2004 | 15142776 |
| photoinhibition in seedlings of fraxinus and fagus under natural light conditions: implications for forest regeneration? | ash (fraxinus excelsior l.) and beech (fagus sylvatica l.) seedlings were grown in the field under three levels of natural light: (1) open, (2) gap and (3) shade. light acclimation of photosynthesis was characterized by means of modulated chlorophyll a fluorescence of intact leaves and growth parameters were measured at the end of the growing season. measurements of maximum photochemical efficiency (fv/fm) of dark-adapted leaves at intervals through the day showed that ash had a higher fv/fm tha ... | 2004 | 15150656 |
| nuclear microsatellites reveal contrasting patterns of genetic structure between western and southeastern european populations of the common ash (fraxinus excelsior l.). | to determine extant patterns of population genetic structure in common ash and gain insight into postglacial recolonization processes, we applied multilocus-based bayesian approaches to data from 36 european populations genotyped at five nuclear microsatellite loci. we identified two contrasting patterns in terms of population genetic structure: (1) a large area from the british isles to lithuania throughout central europe constituted effectively a single deme, whereas (2) strong genetic differe ... | 2004 | 15212379 |
| phaeoacremonium rubrigenum--hyphomycete associated with bark beetles found in czechia. | phaeoacremonium is a recently described genus (crous et al. 1996) associated with decline diseases of woody hosts and with human infections. during a study of surface mycobiota of the oak bark beetles, the hyphomycetous microfungus phaeoacremonium rubrigenum was isolated from larvae of scolytus intricatus (coleoptera: scolytidae) and their galleries on quercus robur and also from an adult of leperisinus fraxini found under the bark of fraxinus excelsior. the species determination was confirmed b ... | 2004 | 15227778 |
| phlorizin-like effect of fraxinus excelsior in normal and diabetic rats. | the purpose of this study was to determine the underlying mechanism of the hypoglycaemic activity of the aqueous extract perfusion of fraxinus excelsior l. (fe) in normal and streptozotocin-induced diabetic rats. the aqueous extract was administered intravenously and the blood glucose changes were determined within four hours after starting the treatment. plasma insulin concentrations and glycosuria were determined. the aqueous extract at a dose of 10 mg/kg/h produced a significant decrease in b ... | 2004 | 15261976 |
| chloroplast dna variation and postglacial recolonization of common ash (fraxinus excelsior l.) in europe. | we used chloroplast polymerase chain reaction-restriction-fragment length polymorphism (pcr-rflp) and chloroplast microsatellites to assess the structure of genetic variation and postglacial history across the entire natural range of the common ash (fraxinus excelsior l.), a broad-leaved wind-pollinated and wind-dispersed european forest tree. a low level of polymorphism was observed, with only 12 haplotypes at four polymorphic microsatellites in 201 populations, and two pcr-rflp haplotypes in a ... | 2004 | 15488002 |
| sensitization to common allergens, especially pollens, among children with respiratory allergy in the trakya region of turkey. | asthma and allergic rhinitis are common problems in children and the causative pollen allergens vary according to the geographical area. the aim of this study was to investigate patterns of sensitization to common inhalant allergens, especially pollens, in turkish children living in the trakya region and to determine differences between rural and urban areas. allergen skin testing was prospectively performed on 539 children aged between 4 and 17 years with respiratory allergy. the reaction was c ... | 2004 | 15783130 |
| seasonal trends in reduced leaf gas exchange and ozone-induced foliar injury in three ozone sensitive woody plant species. | seasonal trends in leaf gas exchange and ozone-induced visible foliar injury were investigated for three ozone sensitive woody plant species. seedlings of populus nigra l., viburnum lantana l., and fraxinus excelsior l. were grown in charcoal-filtered chambers, non-filtered chambers and open plots. injury assessments and leaf gas exchange measurements were conducted from june to october during 2002. all species developed typical ozone-induced foliar injury. for plants exposed to non-filtered air ... | 2005 | 15809106 |
| fraxinus excelsior l. evokes a hypotensive action in normal and spontaneously hypertensive rats. | the hypotensive effect of an aqueous extract of fraxinus excelsior l. was investigated in both normotensive (wky) and spontaneously hypertensive rats (shr). daily oral administration of fraxinus excelsior (20 mg/kg) aqueous extract for 3 weeks produced a significant decrease in systolic blood pressure (sbp) with variation coefficient (delta%) of 13.5% in shr (p<0.01) and 9% in wky rats (p<0.05). the aqueous extract of fraxinus excelsior significantly enhanced the urination in both shr (p<0.05 co ... | 2005 | 15848019 |
| ozone foliar symptoms in woody plant species assessed with ultrastructural and fluorescence analysis. | this paper compares the responses to ozone in five woody species: fagus sylvatica (fs), acer pseudoplatanus (ap), fraxinus excelsior (fe), viburnum lantana (vl) and ailanthus altissima (aa). the hypothesis being tested was that the strategies that plants adopt to resist oxidative pressure are species-specific. the study was carried out on field grown plants in an area in northern italy characterized by elevated levels of ozone pollution. the observations were made both at ultrastructural (using ... | 2005 | 15869654 |
| [sensitization to castanea sativa pollen and pollinosis in northern extremadura (spain)]. | castanea sativa pollen allergy has generally been considered to be uncommon and clinically insignificant. in our geographical area (plasencia, cáceres, spain) castanea sativa pollen is a major pollen. | 2005 | 15946627 |
| meteorological factors and air pollution in lithuanian forests: possible effects on tree condition. | this study investigates changes in tree condition and environmental factors in lithuania during the active growing season in 1991-2001. the average crown defoliation and the proportion of healthy trees of pinus sylvestris, picea abies, betula sp., fraxinus excelsior, alnus incana, alnus glutinosa, populus tremula, and quercus robur, meteorological (average temperature, amount of precipitation, hydrothermal coefficient) and air pollution data (acidity of precipitation, concentrations of so2, no2 ... | 2005 | 16005769 |
| comparison of cryopreservation techniques for long-term storage of ash (fraxinus excelsior l.). | the main purpose of this study was to develop a cryopreservation protocol for ash and to highlight the importance of testing different clones and plant material of different ontogenetic states. in vitro-grown ash (fraxinus excelsior l.) shoot tips were successfully cryopreserved following optimization of the pvs2-vitrification protocol. pretreatment conditions were optimized and three cryopreservation techniques (encapsulation/dehydration, pvs2-vitrification and encapsulation-vitrification) were ... | 2006 | 16082446 |
| characterization and primer development for amplification of chloroplast microsatellite regions of fraxinus excelsior. | this study reports the characterization of chloroplast dna (cpdna) variation of fraxinus excelsior at five loci and the successful development of primer pairs for the amplification of three of these containing mononucleotide microsatellites. we detected high levels of haplotype variation among provenances of fraxinus around europe and within ireland. | 2005 | 16082581 |
| historical and contemporary mating patterns in remnant populations of the forest tree fraxinus excelsior l. | genetic variation at microsatellite markers was used to quantify genetic structure and mating behavior in a severely fragmented population of the wind-pollinated, wind-dispersed temperate tree fraxinus excelsior in a deforested catchment in scotland. remnants maintain high levels of genetic diversity, comparable with those reported for continuous populations in southeastern europe, and show low interpopulation differentiation (e = 0.080), indicating that historical gene exchange has not been lim ... | 2005 | 16136798 |
| optical properties of bud scales and protochlorophyll(ide) forms in leaf primordia of closed and opened buds. | the transmission spectra of bud scales of 14 woody species and the 77 k fluorescence emission spectra of the innermost leaf primordia of closed and opened buds of 37 woody species were studied. pigment concentrations were determined in some species. bud scales had low transmittance between 400 and 680 nm with a local minimum around 680 nm. transmittance increased steeply above 680 nm and was > 80% in the 700-800 nm spectral region. significant protochlorophyllide (pchlide) accumulation was obser ... | 2006 | 16651257 |
| isolation of the main allergen fra e 1 from ash (fraxinus excelsior) pollen: comparison of the natural and recombinant forms. | fra e 1 is a major allergen for ash pollen-sensitized individuals in northern and central europe. it belongs to the ole e 1-like family and displays high cross-reactivity with taxonomically related members. | 2006 | 16680926 |
| the relationship between chemical composition and mechanical strength in the wood of english ash (fraxinus excelsior linn.). | 1936 | 16746232 | |
| note on certain carbohydrate constituents of the bark of ash (fraxinus excelsior). | 1938 | 16746598 | |
| gravitational infusion of ethylenediurea (edu) into trunks protected adult european ash trees (fraxinus excelsior l.) from foliar ozone injury. | adult ash trees (fraxinus excelsior l.), known to be sensitive or insensitive to ozone, determined by presence or absence of foliar symptoms in previous years, were treated with ethylenediurea (edu) at 450 ppm by gravitational trunk infusion on six occasions at 21-day intervals in summer 2005 at turin, italy. at the end of the season, foliar ozone injury on edu-treated trees was not complete, but was greatly and significantly reduced when compared to results from trees infused with water. signif ... | 2007 | 16769164 |
| diversity and sensitivity of epiphytes to oxides of nitrogen in london. | this study investigated the distribution and diversity of epiphytes in london in relation to no(x) using fine-scale atmospheric dispersion modelling. the survey recorded over 3000 epiphytes from 334 trees (fraxinus excelsior) representing 74 lichen, 14 moss, 7 fungal and 3 algal species. there was a significant inverse relationship between diversity and no(x). diversity declined where no(x) exceeded 70 microg m(-3) and no2 exceeded 40 microg m(-3), suggesting a phytotoxic effect. however, there ... | 2007 | 16777294 |
| chloroplast dna phylogeography of european ashes, fraxinus sp. (oleaceae): roles of hybridization and life history traits. | we investigated range-wide phylogeographic variation in three european ash species (fraxinus sp., oleaceae). chloroplast dna (cpdna) microsatellites were typed in the thermophilous fraxinus angustifolia and fraxinus ornus and the observed haplotypes and the geographic distribution of diversity were compared to cpdna data previously obtained in the more cold-tolerant fraxinus excelsior. we found wide-ranging haplotype sharing between the phylogenetically close f. angustifolia and f. excelsior, su ... | 2006 | 16780430 |
| differential patterns of morphological and molecular hybridization between fraxinus excelsior l. and fraxinus angustifolia vahl (oleaceae) in eastern and western france. | we examined large-scale patterns of morphology, genetic structure and ecological correlates of fraxinus excelsior and the closely related species fraxinus angustifolia in france, in order to determine the degree of hybridization between them. we sampled 24 populations in two putative hybrid zones (loire and saône), and five control populations of each species. we measured foliar characteristics of adult trees and used five nuclear microsatellites as molecular markers. canonical discriminant anal ... | 2006 | 16968268 |
| standardization of an ash (fraxinus excelsior) pollen allergen extract. | ash tree (fraxinus excelsior) is the main representative of the oleaceae family in temperate zones. diagnosis of ash pollen allergy is made difficult due to (1) an overlapping pollinization period with betulaceae, (2) non-inclusion in current diagnostic assays, and (3) some cross- reactivity with minor allergens from betulaceae. the aim of this study was to calibrate an ash pollen in-house reference preparation (ihrp) in allergic patients in order to produce standardized products for diagnosis a ... | 2007 | 17016054 |
| temporal cline in a hybrid zone population between fraxinus excelsior l. and fraxinus angustifolia vahl. | the two closely related ash species fraxinus excelsior l. (common ash) and fraxinus angustifolia vahl (narrow-leaved ash) have a broad contact zone in france where they hybridize. however, little is known about the local structure of hybrid zone populations and the isolation mechanisms. we assessed the potential effect of floral phenology on the structure of a riparian ash hybrid zone population in central france. the distribution of flowering times was unimodal and lay between the flowering per ... | 2006 | 17032264 |
| assortative mating and differential male mating success in an ash hybrid zone population. | the structure and evolution of hybrid zones depend mainly on the relative importance of dispersal and local adaptation, and on the strength of assortative mating. here, we study the influence of dispersal, temporal isolation, variability in phenotypic traits and parasite attacks on the male mating success of two parental species and hybrids by real-time pollen flow analysis. we focus on a hybrid zone population between the two closely related ash species fraxinus excelsior l. (common ash) and f. ... | 2006 | 17107611 |
| irradiance-induced plasticity in the hydraulic properties of saplings of different temperate broad-leaved forest tree species. | we assessed the irradiance-related plasticity of hydraulic architecture in saplings of betula pendula roth., a pioneer species; acer pseudoplatanus l., fraxinus excelsior l. and quercus robur l., which are post-pioneer light-requiring species; and quercus petraea matt. liebl. and fagus sylvatica l. plants were grown in pots in 36%, 16% and 4% of full sunlight. hydraulic conductance was measured with a high-pressure flow-meter in entire, in situ root systems and in excised shoots. leaf-specific w ... | 2006 | 17169890 |
| tree species effect on the redistribution of soil metals. | phytostabilization of metals using trees is often promoted although the influence of different tree species on the mobilization of metals is not yet clear. soil and biomass were sampled 33 years after planting four tree species (quercus robur, fraxinus excelsior, acer pseudoplatanus, populus 'robusta') in a plot experiment on dredged sediment. poplar took up high amounts of cd and zn and this was associated with increased cd and zn concentrations in the upper soil layer. the other species contai ... | 2007 | 17360090 |
| morphological and molecular characteristics of a new species of pasteuria parasitic on meloidogyne ardenensis. | a species of the hyper-parasitic bacterium pasteuria was isolated from the root-knot nematode meloidogyne ardenensis infecting the roots of ash (fraxinus excelsior). it is morphologically different from some other pasteuria pathogens of nematodes in that the spores lack a basal ring on the ventral side of the spore and have a unique clumping nature. transmission electron microscopy (tem) showed that the clumps of spores are not random aggregates but result from the disintegration of the suicide ... | 2007 | 17399736 |
| ozone air pollution effects on tree-ring growth, delta(13)c, visible foliar injury and leaf gas exchange in three ozone-sensitive woody plant species. | we assessed the effects of ambient tropospheric ozone on annual tree-ring growth, delta(13)c in the rings, leaf gas exchange and visible injury in three ozone-sensitive woody plant species in southern switzerland. seedlings of populus nigra l., viburnum lantana l. and fraxinus excelsior l. were exposed to charcoal-filtered air (cf) and non-filtered air (nf) in open-top chambers, and to ambient air (aa) in open plots during the 2001 and 2002 growing seasons. ambient ozone exposures in the region ... | 2007 | 17403646 |
| can dual chlorophyll fluorescence excitation be used to assess the variation in the content of uv-absorbing phenolic compounds in leaves of temperate tree species along a light gradient? | the present study assesses light-induced variations in phenolic compounds in leaves of saplings of two co-occurring temperate species (acer platanoides l., and fraxinus excelsior l.) along a light gradient using a new non-invasive optical method (dualex). the dualex-derived uv absorbance of leaf epidermis (the sum of the adaxial and abaxial faces, auv) increased significantly with increasing light in both species. auv values were correlated with absorbance of the leaf extract at 305 nm and 375 n ... | 2007 | 17404380 |
| visible foliar injury and physiological responses to ozone in italian provenances of fraxinus excelsior and f. ornus. | we compared leaf visible injury and physiological responses (gas exchange and chlorophyll a fluorescence) to high o3 exposure (150 nmol mol(-1) h, 8 h day(-1), 35-40 days) of two woody species of the same genus with different ecological features: the mesophilic green ash (fraxinus excelsior) and the xerotolerant manna ash (f. ornus). we also studied how provenances from northern (piedmont) and central (tuscany) italy, within the two species, responded to o3 exposure. onset and extent of visible ... | 2007 | 17450285 |
| ethylenediurea (edu) affects the growth of ozone-sensitive and tolerant ash (fraxinus excelsior) trees under ambient o3 conditions. | adult ash trees (fraxinus excelsior l.), known to be sensitive or tolerant to ozone, determined by presence or absence of foliar symptoms in previous years, were treated with ethylenediurea (edu) at 450 ppm by gravitational trunk infusion over the 2005 growing season (32.5 ppm h aot40). tree and shoot growth were recorded in may and september. leaf area, ectomycorrhizal infection, and leaf and fine root biomass were determined in september. edu enhanced shoot length and diameter, and the number ... | 2007 | 17450289 |
| phytodolor--effects and efficacy of a herbal medicine. | herbal antirheumatics are successfully used in painful inflammatory or degenerative rheumatic diseases. one of these herbal medicines is phytodolor (stw 1), a fixed combination of extracts from aspen leaves and bark (populus tremula), common ash bark (fraxinus excelsior), and golden rod herb (solidago virgaurea). its effects as well as those of its components have been verified in experimental and human pharmacological investigations. the mode of action of stw 1 includes antiinflammatory, antioe ... | 2007 | 17704984 |
| herbal medicines as diuretics: a review of the scientific evidence. | there is increasing interest in the health and wellness benefits of herbs and botanicals. this is with good reason as they might offer a natural safeguard against the development of certain conditions and be a putative treatment for some diseases. one such area may be the lowering of blood pressure in those where it is elevated (i.e., hypertension). one class of clinical medicines used to lower blood pressure are known as diuretics and work by increasing the excretion of urine from the body as w ... | 2007 | 17804183 |
| development of new sensitizations in asthmatic children monosensitized to house dust mite by specific immunotherapy. | it has been hypothesized that specific immunotherapy (sit) significantly decreases the development of new allergen sensitizations in mono-sensitized patients. in this study, we evaluated the effect of sit on the development of new allergen sensitizations in 129 asthmatic children mono-sensitized to house dust mite. sit was accepted by only 70 of them (sit group). the remaining 59 children were treated only with medication (control group). at the end of the study we found that 33% of all patients ... | 2007 | 17891916 |
| removal and recovery of heavy metals from aqueous solution using ulmus carpinifolia and fraxinus excelsior tree leaves. | ulmus carpinifolia and fraxinus excelsior tree leaves, which are in great supply in iran, were evaluated for removal of pb(ii), cd(ii) and cu(ii) from aqueous solution. maximum biosorption capacities for u. carpinifolia and f. excelsior were measured as 201.1, 172.0 mg/g for pb(ii), 80.0, 67.2 mg/g for cd(ii) and 69.5, 33.1 mg/g for cu(ii), respectively. for both sorbents the most effective ph range was found to be 2-5 for pb(ii), 3-5 for cd(ii) and 4-5 for cu(ii). metal ion biosorption increase ... | 2008 | 18191021 |
| protection of ash (fraxinus excelsior) trees from ozone injury by ethylenediurea (edu): roles of biochemical changes and decreased stomatal conductance in enhancement of growth. | treatments with ethylenediurea (edu) protect plants from ozone foliar injury, but the processes underlying this protection are poorly understood. adult ash trees (fraxinus excelsior), with or without foliar ozone symptoms in previous years, were treated with edu at 450 ppm by gravitational trunk infusion in may-september 2005 (32.5 ppm h aot40). at 30-day intervals, shoot growth, gas exchange, chlorophyll a fluorescence, and water potential were determined. in september, several biochemical para ... | 2008 | 18331769 |
| geomorphological controls of fraxinus excelsior growth and regeneration in floodplain forests. | geomorphological changes can alter river hydrology and thus influence floodplain forest growth and regeneration. in this paper we quantify the effect of changes in channel elevation at the scale of four decades on hydrological conditions, overbank sediment deposits, water availability, and their impacts on common ash (fraxinus excelsior) growth and recruitment in floodplain forests of the ain river, france. ash is a drought-sensitive species, and its regeneration is influenced by flood disturban ... | 2008 | 18376562 |
| comparative measurements of transpiration and canopy conductance in two mixed deciduous woodlands differing in structure and species composition. | transpiration of two heterogeneous broad-leaved woodlands in southern england was monitored by the sap flux technique throughout the 2006 growing season. grimsbury wood, which had a leaf area index (lai) of 3.9, was dominated by oak (quercus robur l.) and birch (betula pubescens l.) and had a continuous hazel (corylus avellana l.) understory. wytham woods, which had an lai of 3.6, was dominated by ash (fraxinus excelsior l.) and sycamore (acer pseudoplatanus l.) and had only a sparse understory. ... | 2008 | 18381276 |
| underwater germination potential of common ash seed (fraxinus excelsior l.) originating from flooded and non-flooded sites. | oxygen availability is one of the main factors affecting seed germination capacity. on floodplains, oxygen supply is seasonally restricted because of flooding events. seed ecotypes are able to cope with total submergence to different extents, depending on the species and its position in a given environmental gradient. this investigation tested three provenances of common ash (fraxinus excelsior l.), one from a lowland site and two from upland sites, for germination capacity and germination veloc ... | 2008 | 18426485 |
| paternity analysis of pollen-mediated gene flow for fraxinus excelsior l. in a chronically fragmented landscape. | paternity analysis based on microsatellite marker genotyping was used to infer contemporary genetic connectivity by pollen of three population remnants of the wind-pollinated, wind-dispersed tree fraxinus excelsior, in a deforested scottish landscape. by deterministically accounting for genotyping error and comparing a range of assignment methods, individual-based paternity assignments were used to derive population-level estimates of gene flow. pollen immigration into a 300 ha landscape represe ... | 2008 | 18648389 |
| phytophthora gallica sp. nov., a new species from rhizosphere soil of declining oak and reed stands in france and germany. | a non-papillate, slow-growing phytophthora species, which could not be assigned to any existing taxon, was isolated from rhizosphere soil of a declining oak in northeast france, and from the rhizosphere of phragmites australis at lake constance in south-west germany in 1998 and 2004, respectively. we describe this species, previously informally designated phytophthora taxon 'g', as phytophthora gallica sp. nov. morphology, growth rates, and pathogenicity against cuttings of riparian tree species ... | 2008 | 18693002 |
| abiotic methyl bromide formation from vegetation, and its strong dependence on temperature. | methyl bromide (ch3br) is the most abundant brominated organic compound in the atmosphere. it is known to originate from natural and anthropogenic sources, although many uncertainties remain regarding strengths of both sources and sinks and the processes leading to its formation. in this study a potential new ch3br source from vegetation has been examined, analogous to the recently discovered abiotic formation of methyl chloride from plant pectin. several plant samples with known bromine content ... | 2008 | 18853797 |
| validation of the stomatal flux approach for the assessment of ozone visible injury in young forest trees. results from the top (transboundary ozone pollution) experiment at curno, italy. | this paper summarises some of the main results of a two-year experiment carried out in an open-top chambers facility in northern italy. seedlings of populus nigra, fagus sylvatica, quercus robur and fraxinus excelsior have been subjected to different ozone treatments (charcoal-filtered and non-filtered air) and soil moisture regimes (irrigated and non-irrigated plots). stomatal conductance models were applied and parameterised under south alpine environmental conditions and stomatal ozone fluxes ... | 2009 | 19019512 |
| variability in radial sap flux density patterns and sapwood area among seven co-occurring temperate broad-leaved tree species. | forest transpiration estimates are frequently based on xylem sap flux measurements in the outer sections of the hydro-active stem sapwood. we used granier's constant-heating technique with heating probes at various xylem depths to analyze radial patterns of sap flux density in the sapwood of seven broad-leaved tree species differing in wood density and xylem structure. study aims were to (1) compare radial sap flux density profiles between diffuse- and ring-porous trees and (2) analyze the relat ... | 2008 | 19193565 |
| age- and size-related changes in physiological characteristics and chemical composition of acer pseudoplatanus and fraxinus excelsior trees. | forest growth is an important factor both economically and ecologically, and it follows a predictable trend with age. generally, growth accelerates as canopies develop in young forests and declines substantially soon after maximum leaf area is attained. the causes of this decline are multiple and may be linked to age- or size-related processes, or both. our objective was to determine the relative effects of tree age and tree size on the physiological attributes of two broadleaf species. as age a ... | 2009 | 19203930 |
| bacteria associated with oak and ash on a tce-contaminated site: characterization of isolates with potential to avoid evapotranspiration of tce. | along transects under a mixed woodland of english oak (quercus robur) and common ash (fraxinus excelsior) growing on a trichloroethylene (tce)-contaminated groundwater plume, sharp decreases in tce concentrations were observed, while transects outside the planted area did not show this remarkable decrease. this suggested a possibly active role of the trees and their associated bacteria in the remediation process. therefore, the cultivable bacterial communities associated with both tree species g ... | 2009 | 19401827 |
| responses of canopy duration to temperature changes in four temperate tree species: relative contributions of spring and autumn leaf phenology. | while changes in spring phenological events due to global warming have been widely documented, changes in autumn phenology, and therefore in growing season length, are less studied and poorly understood. however, it may be helpful to assess the potential lengthening of the growing season under climate warming in order to determine its further impact on forest productivity and c balance. the present study aimed to: (1) characterise the sensitivity of leaf phenological events to temperature, and ( ... | 2009 | 19449036 |
| twenty years of biological monitoring of element concentrations in permanent forest and grassland plots in baden-württemberg (sw germany). | environmental monitoring of pollutants in international or local programmes has enabled authorities to evaluate the success of political measures over time. strict environmental legislation and the introduction of cleaner technologies have already led to significant improvements of the air and water quality in many countries. still, the discharge and deposition of anthropogenic long-range transported pollutants often remain above the critical thresholds and long-term targets defined for terrestr ... | 2010 | 19455359 |
| cheminformatics based selection and cytotoxic effects of herbal extracts. | bioinformatics and traditional medicine can be used in discovery and design of novel candidate drugs to efficient cancer chemotherapy. in this study, similarity search tools employed to screen and introduce novel herbs with antitumor property. several novel herbs have been selected by using logical computational algorithms and assayed on six cancerous cell lines. complementary assays involved hemolytic and antifungal mic tests have been performed to determine selectivity and their biocompatibili ... | 2009 | 19602433 |
| cryopreservation of dormant european ash (fraxinus excelsior) orthodox seeds. | we investigated the sensitivity of dormant polish-provenance fraxinus excelsior l. seeds to extreme desiccation and liquid nitrogen (ln, -196 degrees c). germination and seedling emergence tests revealed that the critical water content (wc) of the desiccated seeds was 0.04-0.06 g h(2)o g(-1) dry mass, g g(-1) (0.04 g g(-1) in the germination test and 0.06 g g(-1) in the seedling emergence test). the seeds that were within the safe wc range (0.06-0.24 g g(-1) in the germination test and 0.08-0.24 ... | 2009 | 19706647 |
| differences in c metabolism of ash species and provenances as a consequence of root oxygen deprivation by waterlogging. | the waterlogging tolerance and the physiological responses to this stress were tested in seedlings of fraxinus angustifolia, an ash tree inhabiting riparian forests, and two provenances of the closely related fraxinus excelsior, one derived from a riparian forest (fer) and one from a mountainous region (fem). besides visible damage, physiological parameters reflecting adaptations of plants to waterlogging such as net co(2) assimilation, alcoholic fermentation, and the concentrations of metabolit ... | 2009 | 19717531 |
| acute effects of fraxinus excelsior l. seed extract on postprandial glycemia and insulin secretion on healthy volunteers. | fraxinus excelsior l. (family: oleaceae) seeds are consumed as a food, condiment, and folk medicine. the seeds are traditionally used as a potent hypoglycemic agent, but no clinical evidence exists in as to this regard. we assessed the clinical efficacy and safety of the seed extract (fraxipure, naturex), containing 6.8% of nuzhenide and 5.8% of gi3 (w/w), on plasma glucose and insulin levels against glucose (50 g) induced postprandial glycemia. | 2009 | 19723572 |
| the effects of gap size on some microclimate variables during late summer and autumn in a temperate broadleaved deciduous forest. | the creation of gaps can strongly influence forest regeneration and habitat diversity within forest ecosystems. however, the precise characteristics of such effects depend, to a large extent, upon the way in which gaps modify microclimate and soil water content. hence, the aim of this study was to understand the effects of gap creation and variations in gap size on forest microclimate and soil water content. the study site, in north west england, was a mixed temperate broadleaved deciduous fores ... | 2010 | 19763632 |
| quantification and monosaccharide composition of hemicelluloses from different plant functional types. | hemicelluloses are the second most abundant polysaccharide in nature after cellulose. so far, the chemical heterogeneity of cell-wall hemicelluloses and the relatively large sample-volume required in existing methods represent major obstacles for large-scale, cross-species analyses of this important plant compound. here, we apply a new micro-extraction method to analyse hemicelluloses and the ratio of 'cellulose and lignin' to hemicelluloses in different tissues of 28 plant species comprising fo ... | 2010 | 19926487 |
| iridoids from fraxinus excelsior with adipocyte differentiation-inhibitory and pparalpha activation activity. | two new secoiridoid glucosides, excelsides a (1) and b (2), were isolated from the seeds of fraxinus excelsior. their structures were elucidated as (2s,4s,3e)-methyl 3-ethylidene-4-(2-methoxy-2-oxoethyl)-2-[(6-o-beta-d-glucopyranosyl-beta-d-glucopyranosyl)oxy]-3,4-dihydro-2h-pyran-5-carboxylate and (2s,4s,3e)-methyl 3-ethylidene-4-{2-[2-(4-hydroxyphenyl)ethyl]oxy-2-oxoethyl}-2-[(6-o-beta-d-glucopyranosyl-beta-d-glucopyranosyl)oxy]-3,4-dihydro-2h-pyran-5-carboxylate, respectively, on the basis of ... | 2010 | 20000781 |
| [sensitization to pollens of oleaceae family in a group of patients from mexico city]. | in mexico city, where the olive trees are scarce, the oleaceae family has been recognized as one of the most important causes of pollen allergy, possibly related to cross-reactivity with other pollens of the oleaceae family, as fraxinus excelsior, ligustrum vulgaris and osmanthus americanus. | 2015 | 20088452 |
| ambient ozone concentration and its impact on forest vegetation in lithuania. | continuous ozone concentration measurements at rural sites in lithuania have been performed since 1982. long-term ozone data show an increasing trend 0.4 ppb y(-1) in annual mean concentrations during the period 1982-2008, although ozone peak values show an insignificant tendency to decrease. several studies were performed to evaluate the ozone effect on the main plant species of lithuanian forests. a strong positive correlation was found between values for the accumulated doses over a threshold ... | 2009 | 20175442 |
| cryopreservation of fraxinus excelsior l. embryogenic callus by one-step freezing and slow cooling techniques. | an efficient cryopreservation protocol for the safe storage of fraxinus excelsior l. embryogenic callus cultures is reported. the cryopreservation methods tested included one-step freezing by means of (i) encapsulation-vitrification; or (ii) encapsulation-dehydration; and (iii) slow cooling using the nalgene freezing container, mr frosty, which produces a temperature decrease of about 1 masculinec min-1 when placed in a -70 degree c freezer. none of the one-step freezing techniques was effective ... | 2013 | 20309510 |