| distribution of na, k, rb, cs, and 137cs in some austrian higher fungi. | the level of 137cs in 28 species of mushroom collected and analyzed between 1986 and 1992, after the chernobyl accident, are reported. xerocomus badius was found to accumulate 137cs (the median value of 58 samples is 3667 bq/kg). the 137cs content of rozites caperata, scleroderma vulgare, and tylopilus felleus exceeded 600 bq/kg. some of these samples collected in august 1992 were investigated for their 134cs and 137cs content as well as their na, k, rb, and cs levels by applying instrumental ne ... | 1994 | 7710891 |
| levels of some trace elements in edible fungi. | a number of common edible fungi were analysed for their contents of pg, cd, cr, ni, co, zn, cu, mn and se. the results indicate that the cd level in the species rozites caperata can be as high as several mg/kg fresh weight. in lycoperdon perlatum and macrolepiota procera the pb level was found to be up to 2.5 mg/kg. the ni level was at or below 0.1 mg/kg in all species, with the exception of albatrellus ovinus, which had a mean concentration of 0.72 mg/kg. the level of cr was highest in m. proce ... | 1995 | 8525697 |
| isolation and partial characterization of an antiviral, rc-183, from the edible mushroom rozites caperata. | a protein of 10,425 da was purified from the edible mushroom rozites caperata and shown to inhibit herpes simplex virus types 1 and 2 replication with an ic50 value of < or = 5 microm. the protein designated rc-183 also significantly reduced the severity of hsv-1 induced ocular disease in a murine model of keratitis, indicating in vivo efficacy. hsv mutants lacking ribonucleotide reductase and thymidine kinase were also inhibited, suggesting the mechanism does not involve these viral enzymes. an ... | 1999 | 10517309 |
| distribution of mercury in gypsy cortinarius caperatus mushrooms from several populations: an efficient accumulator species and estimated intake of element. | mushroom cortinarius caperatus is one of the several edible wild-grown species that are widely collected by fanciers. for specimens collected from 20 spatially and distantly distributed sites in poland the median values of hg contents of caps ranged from 0.81 to 2.4mgkg(-1) dry matter and in stipes they were 2.5-fold lower. c. caperatus efficiently accumulates hg and the median values of the bioconcentration factor for caps range from 120 to 18 and for stipes from 47 to 7.3. this mushroom even w ... | 2014 | 25199584 |
| radiocaesium in cortinarius spp. mushrooms in the regions of the reggio emilia in italy and pomerania in poland. | activity concentrations of (134)cs and (137)cs have been determined in 23 species of mushrooms of the genus cortinarius (59 individual samples) collected from the reggio emilia in italy 1992-1999 and in 4 species (16 composite samples and 413 individuals) from the pomerania region in poland from 1996 to 2015. across all the cortinarius species from the reggio emilia, the activity concentrations were relatively high in cortinarius alboviolaceus, cortinarius duracinus, cortinarius orellanus, corti ... | 2016 | 27600726 |
| lead and cadmium in mushrooms from the vicinity of two large emission sources in slovenia. | cd and pb contents were determined in 699 samples of fruiting bodies of 55 mushrooms species, collected in the period 2000-2007 in the vicinity of the largest slovenian thermal power plant (the šalek valley) and near an abandoned lead smelter (the upper meža valley). the present study is the first regarding lead and cadmium in mushrooms from those exposed areas. therefore, there was a significant lack of prior data. among 55 studied mushroom species 36 species are edible and important from an ec ... | 2013 | 23253939 |
| implication of icp0 translocation and peroxisome functions in the inhibition of hsv-1 by the antiviral protein rc28 from the higher basidiomycetes mushroom rozites caperata. | rc28 an antiviral protein of mw 28.25 kd isolated from the edible mushroom rozites caperata (rc) (=cortinarius caperatus), was tested for its ability to block hsv-1 functions. the protein blocked the translocation of the immediate early protein icp0 from the nucleus to the cytoplasm. target studies using an array of yeast proteins revealed that the protein binds preferentially to some yeast peroxisome proteins. an antagonist of the peroxisome proliferator nuclear receptor complex (ppar) [2-chlor ... | 2014 | 25404216 |
| antiviral activity of a cloned peptide rc28 isolated from the higher basidiomycetes mushroom rozites caperata in a mouse model of hsv-1 keratitis. | an escherichia coli-expressed peptide with a molecular weight of 28.26, derived from the complementary dna of antiviral protein rc28 isolated from the mushroom rozites caperata (=cortinarius caperatus), demonstrated potent antiviral activity against herpes simplex virus-1 in vero cells and in a herpes simplex virus-1 mouse keratitis model. plaque assays in vero cells showed that the peptide reduced viral yields by at least 1.2 logs; in the animal model the cloned peptide delayed the occurrence o ... | 2015 | 26756294 |
| long-term effects of single potassium fertilization on 137cs levels in plants and fungi in a boreal forest ecosystem. | we examined the long-term effects of a single application of potassium (k) fertilizer (100 kg k ha(-1)) in 1992 on (137)cs uptake in a forest ecosystem in central sweden. (137)cs activity concentrations were determined in three low-growing perennial shrubs, heather (calluna vulgaris), lingonberry (vaccinium vitis-idaea) and bilberry (vaccinium myrtillus), and in four wild fungal species (cortinarius semisanguineus, lactarius rufus, rozites caperata and suillus variegatus). uptake of (137)cs by p ... | 2010 | 21144627 |
| boron and other elements in sporophores of ectomycorrhizal and saprotrophic fungi. | fungi are usually thought not to have a boron (b) requirement. it is not known if mycorrhizas take up b from low concentrations that are common in forest soils, as fungi might also immobilise b. here, we studied the b concentrations in sporophores of 49 ectomycorrhizal and 10 saprotrophic fungi to assess whether b is translocated in mycelium or not. additionally, p and metal concentrations were measured for comparison. variability both within species and between species was very large, as the lo ... | 2011 | 20526634 |
| mosses and some mushroom species as bioindicators of radiocaesium contamination and risk assessment. | mosses, lichens, mushrooms are able to efficiently accumulate different radioactive elements from their environment to a much higher degree than other vegetation. they are sensitive bioindicators of radioactive contamination for various ecosystems, particularly in the event of a nuclear accident and uncontrolled emission oh fission products. results of systematic, long-term measurements of 137cs activities in mosses and in some edible mushroom species in north croatia for the post-chernobyl peri ... | 2008 | 19138015 |
| purification, partial characterization and molecular cloning of the novel antiviral protein rc28. | an antiviral protein, rc28, with anti-herpesvirus activity was purified from a pbs extract of rozites caperata (cortinarious caperata) by acetone precipitation followed by gel filtration and ion exchange chromatography. the molecular weight of this protein was 28.251kda as measured by maldi-tof mass spectrography. our preparation of rc28 inhibited hsv-1 replication in vitro with an ic(50) value of 0.078mg/ml and a therapeutic index >32. the first 30 amino acid residues of rc28 were sequenced by ... | 2009 | 19103240 |
| long-term trends in the uptake of radiocesium in rozites caperatus. | measurements of (134)cs and (137)cs in rozites caperatus from 1991 to 2001 showed differences in the uptake pattern of chernobyl and fallout derived radiocesium over time. the effective half-life of chernobyl derived (137)cs was determined to 12.4 years, whereas fallout derived (137)cs had an effective half-life of 9.8 years. however, the trend for chernobyl derived (137)cs was clearly not linear. an effective average half-life of 3.1 years was determined for chernobyl derived (137)cs in the per ... | 2004 | 15172589 |
| screening of basidiomycete mushroom extracts for antigenotoxic and bio-antimutagenic activity. | in this study we screened crude methanol:water extracts of 89 different mushroom species for their antigenotoxic and bio-antimutagenic activity. the screening was performed with the sos/umu test and we monitored the ability of extracts to inhibit uv induced expression of umuc gene in salmonella typhimurium ta1535/psk1002. seventeen extracts inhibited umuc expression by more than 50%. these extracts were further evaluated for the ability to inhibit uv induced mutations in escherichia coli wp2. fi ... | 2002 | 12116881 |
| [the influence of cooking on radiocaesium contamination of edible mushrooms]. | radiocaesium concentration in some kinds of edible mushrooms collected in october 1990 has been determined to evaluate the radiocaesium activity 5 years after chernobyl accident. the highest activity was found in xerocomus subtomentosus (1080.5 bq/kg of fresh weight), then in rozites caperata (768.5 bq/kg) and xerocomus badius (562.5 bq/kg); the lowest--in suillus luteus (52.0 bq/kg) and cantharellus cibarius (63.0 bq/kg). studies on the influence of cooking on radiocaesium activity revealed tha ... | 1999 | 10523934 |