| [chemotaxonomy of ericaceae: isolation and identification of triterpenes and steroids from vaccinium uliginosum (author's transl)]. | | 2016 | 4789554 |
| anthocyanins extracted from chinese blueberry (vaccinium uliginosum l.) and its anticancer effects on dld-1 and colo205 cells. | vaccinium uliginosum l. is a type of blueberry found in the chinese changbai mountains. we extracted vaccinium uliginosum anthocyanins (a(v.uli)) to investigate its bioactivity on suppressing cancer cells. | 2010 | 21034658 |
| enhancement of hiv-1 tat fusion protein transduction efficiency by bog blueberry anthocyanins. | though protein transduction domains (ptds) are well known for the delivery of exogenous therapeutic proteins into living cells, the overall low efficiency of transduction is a serious obstacle. we investigated the effect of bog blueberry anthocyanins (bba) on protein transduction efficiency and found that bba enhanced the transduction efficiencies of tat-sod fusion protein into hela cells and mice skin. the enzymatic activities in the cells and skin tissue in the presence of bba were markedly in ... | 2010 | 20797319 |
| improved uv-b screening capacity does not prevent negative effects of ambient uv irradiance on psii performance in high arctic plants. results from a six year uv exclusion study. | long-term responses of ambient solar ultraviolet (uv) radiation were investigated on salix arctica and vaccinium uliginosum in a high arctic heath ecosystem in zackenberg, northeast greenland. over a period of six years, uv exclusion was conducted in the growing season by means of filters: 60% uv-b reduction, 90% uv-b+uv-a reduction, uv transparent filter control, and an open control without filter. plant responses were evaluated using specific leaf area, leaf content of uv-b absorbing compounds ... | 2010 | 20688417 |
| the abundance and pollen foraging behaviour of bumble bees in relation to population size of whortleberry (vaccinium uliginosum). | habitat fragmentation can have severe effects on plant pollinator interactions, for example changing the foraging behaviour of pollinators. to date, the impact of plant population size on pollen collection by pollinators has not yet been investigated. from 2008 to 2010, we monitored nine bumble bee species (bombus campestris, bombus hortorum s.l., bombus hypnorum, bombus lapidarius, bombus pascuorum, bombus pratorum, bombus soroensis, bombus terrestris s.l., bombus vestalis s.l.) on vaccinium ul ... | 2012 | 23209721 |
| anthocyanin and flavonol variation in bog bilberries (vaccinium uliginosum l.) in finland. | the flavonoids, anthocyanins and flavonols, in bog bilberries (vaccinium uliginosum l.) were studied from 15 populations in finland on a south-north axis of approximately 1000 km. four anthocyanidin xylosides and 14 flavonol glycosides were tentatively identified by means of hplc-esi-ms. twenty-five major flavonoids were quantified by hplc-dad. the averages (+/-standard deviation) in the contents of anthocyanins and flavonols were 1425+/-398 and 1133+/-290 mg/100 g of dry weight, respectively. t ... | 2010 | 20000402 |
| bog blueberry anthocyanins alleviate photoaging in ultraviolet-b irradiation-induced human dermal fibroblasts. | fruits of bog blueberry (vaccinium uliginosum l.) are rich in anthocyanins that contribute pigmentation. anthocyanins have received much attention as agents with potentials preventing chronic diseases. this study investigated the capacity of anthocyanin-rich extract from bog blueberry (ath-bbe) to inhibit photoaging in uv-b-irradiated human dermal fibroblasts. bbe anthocyanins were detected as cyanidin-3-glucoside, petunidin-3-glucoside, malvidin-3-glucoside, and delphinidin3-glucoside. ath-bbe ... | 2009 | 19199288 |
| diverse helotiales associated with the roots of three species of arctic ericaceae provide no evidence for host specificity. | ericoid mycorrhizal fungi differ in their abilities to use nitrogen sources and may be integral to maintaining fungal and plant diversity in ecosystems in which ericaceae occur. in this study, we tested whether the fungal communities differ among three species of co-occurring ericaceae. fungi colonizing cassiope tetragona, empetrum nigrum and vaccinium vitis-idaea roots in the arctic tundra were characterized via culture-dependent and culture-independent techniques. the cultured fungi were teste ... | 2011 | 21463329 |
| element cycling in the dominant plant community in the alpine tundra zone of changbai mountains, china. | element cycling in the dominant plant communities including rh. aureum, rh. redowskianum and vaccinium uliginosum in the alpine tundra zone of changbai mountains in northeast china was studied. the results indicate that the amount of elements from litter decomposition was less than that of the plant uptake from soil, but that from plant uptake was higher than that in soil with mineralization process released. on the other hand, in the open system including precipitation input and soil leaching o ... | 2005 | 16083139 |
| [vegetation biomass distribution characteristics of alpine tundra ecosystem in changbai mountains]. | climate change is one of the hotspots in global environment concerns, while alpine tundra ecosystem is most sensitive to global climate change. because of the relatively small area of tundra, researches on alpine tundra ecosystem were much less. based on the measurement of species biomass, dominant species organ biomass and vegetation biomass, this paper discussed the biomass spatial variation in alpine tundra ecosystem of changbai mountains. the results showed that among 43 species investigated ... | 2004 | 15707302 |
| alaskan wild berry resources and human health under the cloud of climate change. | wild berries are integral dietary components for alaska native people and a rich source of polyphenolic metabolites that can ameliorate metabolic disorders such as obesity and diabetes. in this study, five species of wild alaskan berries (vaccinium ovalifolium , vaccinium uliginosum , rubus chamaemorus , rubus spectabilis , and empetrum nigrum) were screened for bioactivity through a community-participatory research method involving three geographically distinct tribal communities. compositional ... | 2010 | 20025229 |
| essential and non-essential elements in natural vegetation in southern norway: contribution from different sources. | concentrations of essential and non-essential elements in five widespread species of natural boreal vegetation were studied with respect to seasonal variation and contribution from different sources. the plant species included in the study were betula pubescens, sorbus aucuparia, vaccinium myrtillus, vaccinium uliginosum, calluna vulgaris and deschampsia flexuosa. concentrations of elements essential to plants remained essentially constant or decreased slightly throughout the growing season. con ... | 2015 | 25268568 |
| transition zones between vegetation patches in a heterogeneous arctic landscape: how plant growth and photosynthesis change with abundance at small scales. | arctic vegetation is often highly heterogeneous, consisting of mosaics of vegetation patches. vegetation transition zones at the boundaries between patches can therefore make up a significant proportion of the landscape, yet performance of plants in transition zones, compared with their main patches, has not been previously investigated. not only does this limit our understanding of plant productivity in highly heterogeneous landscapes, this knowledge is also needed to improve our understanding ... | 2010 | 20108099 |
| heavy metal (pb, zn, cd, fe, and cu) contents of plant foliage near the anvil range lead/zinc mine, faro, yukon territory. | mining and processing of lead (pb)/zinc (zn) ore at the anvil range mine occurred near the town of faro in the yukon territory, canada, for approximately 30 years, beginning in 1968. a study was undertaken to examine whether the mining activities had left a detectable "footprint" on the environment in the way of heavy metal phytoaccumulation. foliage of three native plant species was sampled: bog blueberry (vaccinium uliginosum), labrador tea (ledum groenlandicum), and willow (salix sp.), at app ... | 2002 | 12297090 |
| screening of mongolian plants for influence on amylase activity in mouse plasma and gastrointestinal tube. | mongolian plants were screened for their influence on alpha-amylase activity in mouse plasma. methanolic extracts of geranium pratense, rhodiola rosea, ribes pullchelum and vaccinium uliginosum inhibited the enzyme activity in isolated mouse plasma by greater than 40% and the effect was concentration dependent. vaccinium uliginosum also showed a depressive effect on elevation of postprandial blood glucose to some extent. | 2003 | 12843638 |
| catechin content and consumption ratio of the collared lemming. | chemical- plant defences as mechanisms affecting herbivore populations have been debated during the past decade. several authors have questioned the hypothesis, but the present study shows that collared lemmings ( dicrostonyx groenlandicus) in northeast greenland prefer food plants with a lower catechin content. dicrostonyx species are known to have specialised on shrubs, especially dryas spp. and salix spp., rather than graminoids like other related microtines. bioassays were conducted using fo ... | 2003 | 12698346 |
| litter of the hemiparasite bartsia alpina enhances plant growth: evidence for a functional role in nutrient cycling. | hemiparasitic angiosperms concentrate nutrients in their leaves and also produce high quality litter, which can decompose faster and release more nutrients than that of surrounding species. the impact of these litters on plant growth may be particularly important in nutrient-poor communities where hemiparisites can be abundant, such as the sub-arctic. we tested the hypothesis that plant growth is enhanced by the litter of the hemiparasite bartsia alpina, in comparison with litter of co-occurring ... | 2003 | 12684861 |
| [the effect of vaccinium uliginosum to the electroretinogram and retina of rabbits before and after light-induced damage]. | study the effect of vaccinium uliginosum (vu) on the electroretinogram (erg) and histology of rabbits' retina before and after light-induced damage. | 2010 | 20654220 |
| climate change has only a minor impact on nutrient resorption parameters in a high-latitude peatland. | nutrient resorption from senescing plant tissues is an important determinant of the fitness of plant populations in nutrient-poor ecosystems, because it makes plants less dependent on current nutrient uptake. moreover, it can have significant "afterlife" effects through its impact on litter chemistry and litter decomposability. little is known about the effects of climate change on nutrient resorption. we studied the effects of climate change treatments (including winter snow addition, and sprin ... | 2007 | 17063365 |
| a c-repeat binding factor transcriptional activator (cbf/dreb1) from european bilberry (vaccinium myrtillus) induces freezing tolerance when expressed in arabidopsis thaliana. | freezing stress affects all plants from temperate zones to the poles. global climate change means such freezing events are becoming less predictable. this in turn reduces the ability of plants to predict the approaching low temperatures and cold acclimate. this has consequences for crop yields and distribution of wild plant species. c-repeat binding factors (cbfs) are transcription factors previously shown to play a vital role in the acclimation process of arabidopsis thaliana, controlling the e ... | 2013 | 23349799 |