Publications

foliar injury in young betula pendula roth., salix purpurea l. and ilex aquifolium l. trees and in propagated taxus baccata l. shoots exposed to intermittent fog at a range of acidities.	the occurrence of various visible symptoms of foliar injury was assessed on a 5-point scale for each of the species. there was a distinct increase in the incidence of most types of injury in plant material which has been exposed to ph 2.5 acid fog. no clear ph-related trend in foliar injury occurred in plants exposed to acid fog at ph 3.5, ph 4.5 and ph 5.6, indicating that a threshold for a range of different types of visible injury may exist between ph 2.5 and ph 3.5 for all four species.	1993	15091854
hydroponic screening for metal resistance and accumulation of cadmium and zinc in twenty clones of willows and poplars.	we screened 20 different clones of willow and poplar species in hydroponic experiments for their metal resistance and accumulation properties. plants were exposed for 4 weeks either to single additions of (microm) 4.45 cd or 76.5 zn, or a metal cocktail containing the same amounts of cd and zn along with 7.87 cu and 24.1 pb. plant biomass, metal tolerance and metal accumulation pattern in roots and leaves varied greatly between clones. the leaf:root ratio of metal concentrations was clearly unde ...	2007	17241723
use of chromatographic (spe-hplc) and spectrophotometric methods for differentiation of salix species through correlation analysis and freeviz projection.	the major concern of the present article is research into the combination of analytical assessment and multi-correlative data interpretation. for this purpose, a high performance liquid chromatography (hplc) procedure was developed for the simultaneous quantification of salicin, salicylalcohol derivatives, phenolic acids, flavonoids, and monomeric catechins after solid phase extraction (spe). on the basis of an established and validated hplc method, 49 different salix samples were extracted, pur ...	2010	21118078
contribution of flavonoids and catechol to the reduction of icam-1 expression in endothelial cells by a standardised willow bark extract.	introduction: a quantified aqueous willow bark extract (stw 33-i) was tested concerning its inhibitory activity on tnf-α induced icam-1 expression in human microvascular endothelial cells (hmec-1) and further fractionated to isolate the active compounds. results: at 50μg/ml the extract, which had been prepared from salix purpurea l., decreased icam-1 expression to 40% compared to control cells without showing cytotoxic effects. further liquid-liquid partition revealed an ethyl acetate phase with ...	2011	21982436
whole-genome sequences of 13 endophytic bacteria isolated from shrub willow (salix) grown in geneva, new york.	shrub willow, salix spp. and hybrids, is an important bioenergy crop. here we report the whole-genome sequences and annotation of 13 endophytic bacteria from stem tissues of salix purpurea grown in nature and from commercial cultivars and salix viminalis × salix miyabeana grown in bioenergy fields in geneva, new york.	2014	24812212
the study of interactions between active compounds of coffee and willow (salix sp.) bark water extract.	coffee and willow are known as valuable sources of biologically active phytochemicals such as chlorogenic acid, caffeine, and salicin. the aim of the study was to determine the interactions between the active compounds contained in water extracts from coffee and bark of willow (salix purpurea and salix myrsinifolia). raw materials and their mixtures were characterized by multidirectional antioxidant activities; however, bioactive constituents interacted with each other. synergism was observed fo ...	2014	25013777
melampsora rust species on biomass willows in central and north-eastern germany.	melampsora willow rusts are the most important fungal pathogens in short rotation coppices of biomass willows. in the past, breeding programmes for rust resistant biomass willows concentrated on the distinction of races within the forma specialis melampsora larici-epitea f. sp. larici-epitea typica that colonized salix viminalis and related clones. in a new breeding program that is based on a wider range of willow species it is necessary to identify further melampsora species and formae speciali ...	2014	25442294
metabolic responses of willow (salix purpurea l.) leaves to mycorrhization as revealed by mass spectrometry and (1)h nmr spectroscopy metabolite profiling.	the root system of most terrestrial plants form symbiotic interfaces with arbuscular mycorrhizal fungi (amf), which are important for nutrient cycling and ecosystem sustainability. the elucidation of the undergoing changes in plants' metabolism during symbiosis is essential for understanding nutrient acquisition and for alleviation of soil stresses caused by environmental cues. within this context, we have undertaken the task of recording the fluctuation of willow (salix purpurea l.) leaf metabo ...	2015	26042135
salix purpurea stimulates the expression of specific bacterial xenobiotic degradation genes in a soil contaminated with hydrocarbons.	the objectives of this study were to uncover salix purpurea-microbe xenobiotic degradation systems that could be harnessed in rhizoremediation, and to identify microorganisms that are likely involved in these partnerships. to do so, we tested s. purpurea's ability to stimulate the expression of 10 marker microbial oxygenase genes in a soil contaminated with hydrocarbons. in what appeared to be a detoxification rhizosphere effect, transcripts encoding for alkane 1-monooxygenases, cytochrome p450 ...	2015	26161539
comparative transcriptomic approaches exploring contamination stress tolerance in salix sp. reveal the importance for a metaorganismal de novo assembly approach for nonmodel plants.	metatranscriptomic study of nonmodel organisms requires strategies that retain the highly resolved genetic information generated from model organisms while allowing for identification of the unexpected. a real-world biological application of phytoremediation, the field growth of 10 salix cultivars on polluted soils, was used as an exemplar nonmodel and multifaceted crop response well-disposed to the study of gene expression. sequence reads were assembled de novo to create 10 independent transcri ...	2016	27002060