PubMed:Essential and non-essential elements in natural vegetation in southern Norway: Contribution from different sources. |
PubMed:Sap-feeding insects on forest trees along latitudinal gradients in northern Europe: a climate-driven patterns. |
PubMed:Effect of heat treatment of wood on the morphology, surface roughness and penetration of simulated and human blood. |
PubMed:Molecular footprints of the Holocene retreat of dwarf birch in Britain. |
PubMed:Treeline advances along the Urals mountain range - driven by improved winter conditions? |
PubMed:Mitochondrial toxin betulinic acid induces in vitro eryptosis in human red blood cells through membrane permeabilization. |
PubMed:Spatial heterogeneity in the timing of birch budburst in response to future climate warming in Ireland. |
PubMed:Gas chromatographic and mass spectrometric characterization of trimethylsilyl derivatives of some terpene alcohol phenylpropenoids. |
PubMed:Effects of species-specific leaf characteristics and reduced water availability on fine particle capture efficiency of trees. |
PubMed:Allergic contact dermatitis caused by betulin-containing triterpene extract from the outer bark of birch (Betula alba). |
PubMed:Simulated browsing affects leaf shedding phenology and litter quality of oak and birch saplings. |
PubMed:The skin prick test - European standards. |
PubMed:Changes in crown architecture as a strategy of mountain birch for survival in habitats disturbed by pollution. |
PubMed:Effect of different steam explosion conditions on methane potential and enzymatic saccharification of birch. |
PubMed:Influence of betulinic acid on lymphocyte subsets and humoral immune response in mice. |
PubMed:Defining an adequate sample of earlywood vessels for retrospective injury detection in diffuse-porous species. |
PubMed:Genetic and environmental factors behind foliar chemistry of the mature mountain birch. |
PubMed:Nonvolatile chemical cues affect host-plant ranking by gravid Polygonia c-album females. |
PubMed:The minimum temperature for budburst in Betula depends on the state of dormancy. |
PubMed:Interspecific variation in resistance of Asian, European, and North American birches (Betula spp.) to bronze birch borer (Coleoptera: Buprestidae). |
PubMed:Species-specific effect of UV-B radiation on the temporal pattern of leaf growth. |
PubMed:Decreased frost hardiness of Vaccinium vitis-idaea in reponse to UV-A radiation. |
PubMed:Isolation of methyl syringate as a specific aflatoxin production inhibitor from the essential oil of Betula alba and aflatoxin production inhibitory activities of its related compounds. |
PubMed:Tree and shrub expansion over the past 34 years at the tree-line near Abisko, Sweden. |
PubMed:Assessment of biological and environmental phenology at a landscape level from 30 years of fixed-date repeat photography in northern Sweden. |
PubMed:Potential macro-detritivore range expansion into the subarctic stimulates litter decomposition: a new positive feedback mechanism to climate change? |
PubMed:Dermocosmetics for dry skin: a new role for botanical extracts. |
PubMed:[Comparative evaluation of 238U and 226Ra absorption by herbaceous and woody species under conditions of technogenic pollution]. |
PubMed:Browsing affects intra-ring carbon allocation in species with contrasting wood anatomy. |
PubMed:[Advances in the study of structural modifications and biological activities of betulinic acids]. |
PubMed:Ethanol extract from birch bark (Betula pubescens) suppresses human dendritic cell mediated Th1 responses and directs it towards a Th17 regulatory response in vitro. |
PubMed:Ectomycorrhizal roots select distinctive bacterial and ascomycete communities in Swedish subarctic forests. |
PubMed:Experimental evidence for herbivore limitation of the treeline. |
PubMed:The ecological significance of phenology in four different tree species: effects of light and temperature on bud burst. |
PubMed:Topical treatment of necrotising herpes zoster with betulin from birch bark. |
PubMed:Platanus pollen allergen, Pla a 1: quantification in the atmosphere and influence on a sensitizing population. |
PubMed:Which plant for which skin disease? Part 2: Dermatophytes, chronic venous insufficiency, photoprotection, actinic keratoses, vitiligo, hair loss, cosmetic indications. |
PubMed:Seasonal fluctuations in leaf phenolic composition under UV manipulations reflect contrasting strategies of alder and birch trees. |
PubMed:Effects of elevated ultraviolet-B radiation on a plant-herbivore interaction. |
PubMed:Doubled volatile organic compound emissions from subarctic tundra under simulated climate warming. |
PubMed:Forage quantity, quality and depletion as scale-dependent mechanisms driving habitat selection of a large browsing herbivore. |
PubMed:The rhizosphere and PAH amendment mediate impacts on functional and structural bacterial diversity in sandy peat soil. |
PubMed:Solar ultraviolet radiation alters alder and birch litter chemistry that in turn affects decomposers and soil respiration. |
PubMed:Effect of ecosystem retrogression on stable nitrogen and carbon isotopes of plants, soils and consumer organisms in boreal forest islands. |
PubMed:Effects of a warmer climate on seed germination in the subarctic. |
PubMed:The effect of heat treatment of wood on osteoconductivity. |
PubMed:Mountain birch under multiple stressors--heavy metal-resistant populations co-resistant to biotic stress but maladapted to abiotic stress. |
PubMed:Detection of allergen composition and in vivo immunogenicity of depigmented allergoids of Betula alba. |
PubMed:Larval parasitism of the autumnal moth reduces feeding intensity on the mountain birch. |
PubMed:Metabolic modifications of birch leaf phenolics by an herbivorous insect: detoxification of flavonoid aglycones via glycosylation. |
PubMed:Concentrations of foliar quercetin in natural populations of white birch (Betula pubescens) increase with latitude. |
PubMed:Climatic warming increases isoprene emission from a subarctic heath. |
PubMed:Effect of birch (Betula spp.) and associated rhizoidal bacteria on the degradation of soil polyaromatic hydrocarbons, PAH-induced changes in birch proteome and bacterial community. |
PubMed:From plants to birds: higher avian predation rates in trees responding to insect herbivory. |
PubMed:Comparative measurements of transpiration and canopy conductance in two mixed deciduous woodlands differing in structure and species composition. |
PubMed:Mycorrhizal colonisation of mountain birch (Betula pubescens ssp. czerepanovii) along three environmental gradients: does life in harsh environments alter plant-fungal relationships? |
PubMed:Fecundity of the autumnal moth depends on pooled geometrid abundance without a time lag: implications for cyclic population dynamics. |
PubMed:Use of phenological and pollen-production data for interpreting atmospheric birch pollen curves. |
PubMed:Rapid evolution towards heavy metal resistance by mountain birch around two subarctic copper-nickel smelters. |
PubMed:Trends in phenology of Betula pubescens across the boreal zone in Finland. |
PubMed:Fragmented environment affects birch leaf endophytes. |
PubMed:[An orientational examination of the effects of extracts from mixtures of herbal drugs on selected renal functions]. |
PubMed:Remediation of heavy metal-contaminated forest soil using recycled organic matter and native woody plants. |
PubMed:Immunomodulatory effects of aqueous birch pollen extracts and phytoprostanes on primary immune responses in vivo. |
PubMed:Foliar phenolics are differently associated with Epirrita autumnata growth and immunocompetence. |
PubMed:Element contents in leaves of four plant species (birch, mountain ash, fern and spruce) along anthropogenic and geogenic concentration gradients. |
PubMed:Recent invasion of the mountain birch Betula pubescens ssp. tortuosa above the treeline due to climate change: genetic and ecological study in northern Sweden. |
PubMed:Budburst phenology of white birch in industrially polluted areas. |
PubMed:Ecological role of reindeer summer browsing in the mountain birch (Betula pubescens ssp. czerepanovii) forests: effects on plant defense, litter decomposition, and soil nutrient cycling. |
PubMed:Betulinic acid decreases expression of bcl-2 and cyclin D1, inhibits proliferation, migration and induces apoptosis in cancer cells. |
PubMed:Sexual reproduction advances autumn leaf colours in mountain birch (Betula pubescens ssp. czerepanovii). |
PubMed:Growing seasons of Nordic mountain birch in northernmost Europe as indicated by long-term field studies and analyses of satellite images. |
PubMed:Newly hatched neonate larvae can glycosylate: the fate of Betula pubescens bud flavonoids in first instar Epirrita autumnata. |
PubMed:Wound-induced oxidative responses in mountain birch leaves. |
PubMed:Do competition and herbivory alter the internal nitrogen dynamics of birch saplings? |
PubMed:Phenology and abundance in relation to climatic variation in a sub-arctic insect herbivore-mountain birch system. |
PubMed:[Sensitization to Castanea sativa pollen and pollinosis in northern Extremadura (Spain)]. |
PubMed:Pollen-associated phytoprostanes inhibit dendritic cell interleukin-12 production and augment T helper type 2 cell polarization. |
PubMed:Pollution resistance of mountain birch, Betula pubescens subsp. czerepanovii, near the copper-nickel smelter: natural selection or phenotypic acclimation? |
PubMed:Sources of variation in concentrations of nickel and copper in mountain birch foliage near a nickel-copper smelter at Monchegorsk, north-western Russia: results of long-term monitoring. |
PubMed:Defensive effect of surface flavonoid aglycones of Betula pubescens leaves against first instar Epirrita autumnata larvae. |
PubMed:Stature of sub-arctic birch in relation to growth rate, lifespan and tree form. |
PubMed:Reduction in size and fecundity of the autumnal moth, Epirrita autumnata, in the increase phase of a population cycle. |
PubMed:Reproduction of mountain birch along a strong pollution gradient near Monchegorsk, Northwestern Russia. |
PubMed:Autumn coloration as a signal of tree condition. |
PubMed:Chemotaxis and activation of human peripheral blood eosinophils induced by pollen-associated lipid mediators. |
PubMed:Defoliation increases carbon limitation in ectomycorrhizal symbiosis of Betula pubescens. |
PubMed:Rapid herbivore-induced changes in mountain birch phenolics and nutritive compounds and their effects on performance of the major defoliator, Epirrita autumnata. |
PubMed:Root versus canopy uptake of heavy metals by birch in an industrially polluted area: contrasting behaviour of nickel and copper. |
PubMed:Photoperiod and temperature differentially regulate the expression of two dehydrin genes during overwintering of birch (Betula pubescens Ehrh.). |
PubMed:Early developmental responses of mountain birch (Betula pubescens subsp. czerepanovii) seedlings to different concentrations of phosphorus. |
PubMed:Characteristics of pollinosis caused by Betula in patients from Ourense (Galicia, Spain). |
PubMed:Effects of sample drying and storage, and choice of extraction solvent and analysis method on the yield of birch leaf hydrolyzable tannins. |
PubMed:[Legume cross-reactivity]. |
PubMed:Performance of the cyclic autumnal moth, Epirrita autumnata, in relation to birch mast seeding. |
PubMed:Resource allocation in different parts of juvenile mountain birch plants: effect of nitrogen supply on seedling phenolics and growth. |
PubMed:Putting the insect into the birch-insect interaction. |
PubMed:Spatial responses of two herbivore groups to a geometrid larva on mountain birch. |
PubMed:Xylem ray parenchyma cells in boreal hardwood species respond to subfreezing temperatures by deep supercooling that is accompanied by incomplete desiccation. |
PubMed:Host-associated allozyme variation in tree cambium miners, Phytobia spp. (Diptera: Agromyzidae). |
PubMed:Environmental conditions and host genotype direct genetic diversity of Venturia ditricha, a fungal endophyte of birch trees. |
PubMed:Lipid mediators from pollen act as chemoattractants and activators of polymorphonuclear granulocytes. |
PubMed:Nitrate reductase activity in some subarctic species and UV influence in the foliage of Betula pendula Roth. seedlings. |
PubMed:Morphological, cytogenetic, and molecular evidence for introgressive hybridization in birch. |
PubMed:Phenological modifications in plants by various edaphic factors. |
PubMed:Influence of extreme pollution on the inorganic chemical composition of some plants. |
PubMed:Comparison of the element composition in several plant species and their substrate from a 1500000-km2 area in Northern Europe. |
PubMed:Patterns in content of phenolic compounds in leaves of mountain birches along a strong pollution gradient. |
PubMed:Olfactory responses of Ips duplicatus from inner Mongolia, China to nonhost leaf and bark volatiles. |
PubMed:The shoot apical meristem restores its symplasmic organization during chilling-induced release from dormancy. |
PubMed:Seasonal variation in the content of hydrolysable tannins in leaves of Betula pubescens. |
PubMed:Nuclear magnetic resonance (NMR) studies of homeopathic solutions. |
PubMed:Clonal differences in copper and zinc tolerance of birch in metal-supplemented soils. |
PubMed:Phenolic and phenolic-related factors as determinants of suitability of mountain birch leaves to an herbivorous insect. |
PubMed:Antimicrobial effects of Finnish plant extracts containing flavonoids and other phenolic compounds. |
PubMed:Characterisation of hydrolysable tannins from leaves of Betula pubescens by high-performance liquid chromatography-mass spectrometry. |
PubMed:Effects of Resource Availability on Carbon Allocation and Developmental Instability in Cloned Birch Seedlings. |
PubMed:Minimal persistent inflammation is also present in patients with seasonal allergic rhinitis. |
PubMed:Comparison of digestion methods for determination of trace and minor metals in plant samples. |
PubMed:Dehydrins in cold-acclimated apices of birch (Betula pubescens ehrh. ): production, localization and potential role in rescuing enzyme function during dehydration |
PubMed:Air-pollutant dispersal patterns and vegetation damage in the vicinity of three aluminium smelters in Norway. |
PubMed:Host-driven population dynamics in an herbivorous insect. |
PubMed:Structural analysis of N-glycans from allergenic grass, ragweed and tree pollens: core alpha1,3-linked fucose and xylose present in all pollens examined. |
PubMed:Genetic and environmental factors affecting the allergenicity of birch (Betula pubescens ssp. czerepanovii [Orl.] Hämet-ahti) pollen. |
PubMed:Immunotherapy with sublingual birch pollen extract. A short-term double-blind placebo study. |
PubMed:Variation in ozone sensitivity among clones of Betula pendula and Betula pubescens. |
PubMed:Variation of total phenolic content and individual low-molecular-weight phenolics in foliage of mountain birch trees (Betula pubescens ssp.tortuosa). |
PubMed:Density patterns of gall mites (Acarina:Eriophyidae) in a polluted area. |
PubMed:The major birch pollen allergen, Bet v 1, shows ribonuclease activity. |
PubMed:Variation among and within mountain birch trees in foliage phenols, carbohydrates, and amino acids, and in growth ofEpirrita autumnata larvae. |
PubMed:Comparative studies of allergenic extracts prepared from freshly collected, dried, or dried and defatted pollen. |
PubMed:Effect of carbon dioxide concentration on biomass production and partitioning in Betula pubescens Ehrh. seedlings at different ozone and temperature regimes. |
PubMed:Influence of environment, fertilizer and genotype on shoot morphology and subsequent rooting of birch cuttings. |
PubMed:Root produced DHZR-, ZR- and IPA-like cytokinins in xylem sap in relation to coppice shoot initiation and growth in cloned trees of Betula pubescens. |
PubMed:Seasonal changes in bud dormancy in relation to bud morphology, water and starch content, and abscisic acid concentration in adult trees of Betula pubescens. |
PubMed:Simulated acid rain affects birch leaf endophyte populations. |
PubMed:Root aeration in wetland trees by pressurized gas transport. |
PubMed:Estimation of IgE antibodies to the common allergens by reverse enzyme immunoassay. Comparison with the radioallergosorbent test. |
PubMed:Effects of sulphur dioxide and nitrogen dioxide, singly and in mixture, on the macroscopic growth of three birch clones. |
PubMed:Stomatal resistance, photosynthesis and water relations in mountain birch in the subarctic. |
PubMed:Measurement of xylanase activity with insoluble xylan substrate. |
PubMed:The enrichment of (18)O in leaf water under natural conditions. |
PubMed:Studies on the role of abscisic acid in the initiation of bud dormancy in Alnus glutinosa and Betula pubescens. |
PubMed:Some physiological responses to d,l abscisin (dormin). |
PubMed:[Triterpenes of Betula pendula Roth and Betula pubescens Ehrh. Comparative study of the bark]. |
PubMed:Apical dominance and the effect of gravity on nutrient distribution. |
PubMed:[Isolation of a myricetin-3-digalactoside from Betula verrucosa and Betula pubescens]. |
PubMed:[Combination of Betula Alba, sodium glycerophosphate and vitamin B1 (betul); therapeutic applications in dermatology]. |