Publications

hydrocarbon footprints as a record of bumblebee flower visitation.	bumblebees leave traces of cuticular hydrocarbons on flowers they visit, with the amount deposited being positively related to the number of visits. we asked whether such footprint hydrocarbons are retained on flowers for sufficiently long periods of time so as to reflect bee visitation in pollination studies. in laboratory experiments, flower corollae (primula veris, digitalis grandiflora) visited by bombus terrestris workers retained bee-derived nonacosenes (c(29)h(58)) in near-unchanged quant ...	2009	20013038
tracing pollinator footprints on natural flowers.	many insects are known to leave lipid footprints while walking on smooth surfaces. presumably, the deposited substances improve tarsal adhesion. in bumblebees, footprint hydrocarbons also function as scent marks that allow detection and avoidance of recently depleted flowers. i used gc-ms to detect hydrocarbons deposited by bumblebee (bombus pascuorum) on flowers of lamium maculatum. in addition to the plants' own cuticular lipids, extracts of corollas that had been visited by bumblebees contain ...	2006	16739012
identification and determination of ecdysone and phenylpropanoid glucoside and flavonoids in lamium maculatum by capillary zone electrophoresis.	the simultaneous determination of 20-hydroxy ecdysone (1), 3,7-dimethoxy-quercetin (2), acteoside (3) and rutin (4) in the mixture of leaf and stem, and the flower of lamium maculatum has been investigated by capillary zone electrophoresis for the first time. with an electrolyte containing 30 mmol/l borate, at ph 9.47 and 20 kv applied voltage, the four active compounds were completely separated within 5 min with satisfactory results. the effects of concentration of borate and electrolyte ph on ...	2003	14598333
efficacy of insecticides for control of aphelenchoides fragariae and ditylenchus dipsaci in flowering perennial ornamentals.	the effects of abamectin b1, diazinon, and methiocarb insecticides on aphelenchoides fragariae and ditylenchus dipsaci in lamium maculatum, phlox subulata, rhododendron indicum, and begonia x tuberhybrida were determined in a series of greenhouse experiments. abamectin at 0.005 or 0.011 g a.i./liter (0.3 or 0.6 ml/liter avid 0.15 ec), diazinon at 0.62 or 1.87 g a.i./liter (2.6 or 7.8 ml/liter knoxout gh), or methiocarb at 3.5 g a.i./liter (4.7 g/liter mesurol) were applied in two to six weekly o ...	1999	19270930
survey of microfungi in the kleinwalsertal (austrian alps).	during an excursion to the alps near the german/austrian border (kleinwalsertal) in august 2007, we were able to collect more than 40 species of microfungi as parasites or saprophytes on different parts of wild plants. some of them have been observed only rarely until now. most of the species collected belong to the classes ascomycotina, basidiomycotina, and deuteromycotina. for example: -leptosphaeria jaceae holm on centaurea jacea l.; -mycosphaerella equiseticola bond.-mont. on equisetum telma ...	2008	19226751
studies on biology and genomic characterization of a caulimo-like virus associated with a leaf distortion disease of lamium maculatum.	a virus associated with leaf distortion of lamium maculatum had features characteristic of caulimoviruses. the viral genome (genbank accession number: eu554423) is 7,713 bp in size, with six open reading frames similar in size and organization to those of known caulimoviruses. phylogenetic analyses based on the conserved orf v polyprotein coding region indicated that the lamium virus is a possible new member of the genus caulimovirus. the virus was not transmitted by mechanical or graft inoculat ...	2008	18458813
[studies on chemical constituents in herb of lamium maculatum var. kansuense (ii)].	to study the chemical constituents from lamium maculatum var. kansuense.	2005	15724404
[studies on chemical constituents in herb of lamium maculatum l. var kansuense].	to study the chemical constituents from lamium maculatum l. var kansuense.	2003	15015352