Articles: PubMed:Ground-level ozone differentially affects nitrogen acquisition and allocation in mature European beech (Fagus sylvatica) and Norway spruce (Picea abies) trees. PubMed:Mechanical behaviour analyses of sap ascent in vascular plants. PubMed:Phenols in leaves and bark of Fagus sylvatica as determinants of insect occurrences. PubMed:In situ assessment of the velocity of carbon transfer by tracing 13 C in trunk CO2 efflux after pulse labelling: variations among tree species and seasons. PubMed:Resurrection kinetics of photosynthesis in desiccation-tolerant terrestrial green algae (Chlorophyta) on tree bark. PubMed:Biomass and nutrient content of sessile oak (Quercus petraea (Matt.) Liebl.) and beech (Fagus sylvatica L.) stem and branches in a mixed stand in southern Belgium. PubMed:An external heat pulse method for measurement of sap flow through fruit pedicels, leaf petioles and other small-diameter stems. PubMed:In vitro anticancer potential of tree extracts from the Walloon Region forest. PubMed:Antifeedants and feeding stimulants in bark extracts of ten woody non-host species of the pine weevil, Hylobius abietis. PubMed:Lead isotope ratios in tree bark pockets: an indicator of past air pollution in the Czech Republic. PubMed:Temperature dependency of bark photosynthesis in beech (Fagus sylvatica L.) and birch (Betula pendula Roth.) trees. PubMed:The trophic structure of bark-living oribatid mite communities analysed with stable isotopes ((15)N, (13)C) indicates strong niche differentiation. PubMed:Early detection of Biscogniauxia nummularia in symptomless European beech (Fagus sylvatica L.) by TaqMan quantitative real-time PCR. PubMed:Comparisons of delta13C of photosynthetic products and ecosystem respiratory CO2 and their responses to seasonal climate variability. PubMed:A comparison of lead isotope ratios in the bark pockets and annual rings of two beech trees collected in Derbyshire and South Yorkshire, UK. PubMed:Phytophthora pseudosyringae sp. nov., a new species causing root and collar rot of deciduous tree species in Europe. PubMed:Genetic diversity and bark physiology of the European beech (Fagus sylvatica): a coevolutionary relationship with the beech scale (Cryptococcus fagisuga). PubMed:Pb and 206Pb/207Pb isotopic analysis of a tree bark pocket near Sheffield, UK recording historical change in airborne pollution during the 20th century. PubMed:Differences in salt sensitivity of four deciduous tree species to soil or airborne salt. PubMed:Fate of nitrogen released from 15N-labeled litter in European beech forests.