Results 171 to 180 of about 3,761 (214)

Short-term toxicity study of Paxillus involutus in the rat

Food and Cosmetics Toxicology, 1977
Summary The toxicity of Paxillus involutus , a wild mushroom gathered near the Arctic Circle in Finland, was studied in the rat. When the dried homogenized mushroom in aqueous suspension was administered to male rats by gastric intubation in daily doses of 50 or 250 mg/kg body weight for 40 days, no toxic signs were observed, there being no ...
L, Nieminen, K, Bjondahl, H, Ojanen, E, Ohenoja   +3 more
openaire   +2 more sources

Extraction optimization, characterization, antioxidant and immunomodulatory activities of a novel polysaccharide from the wild mushroom Paxillus involutus.

International Journal of Biological Macromolecules, 2018
Response surface methodology (RSM) using a Box-Behnken design (BBD) was applied to optimize the extraction of Paxillus involutus polysaccharides. The optimum conditions included an extraction time of 3h, extraction temperature of 79°C and a ratio of ...
Yang Liu, Yifa Zhou, Mengdi Liu, Qi Wang, Yu Li   +4 more
semanticscholar   +1 more source

Metabolome adjustments in ectomycorrhizal Populus × canescens associated with strong promotion of plant growth by Paxillus involutus despite a very low root colonization rate.

Tree Physiology, 2020
It is believed that resource exchange, which is responsible for intensified growth of ectomycorrhizal plants, occurs in the fungus-plant interface.
A. Szuba, Ł. Marczak, I. Ratajczak
semanticscholar   +1 more source

Polyamine biosynthesis in the ectomycorrhizal fungus Paxillus involutus exposed to zinc

Letters in Applied Microbiology, 1995
When P. involutus was exposed to 6 g ml −1 or 24 g ml −1 lead for 2 wk, lead accumulated substantially in fungal tissues over the period, with no significant effect on fungal fresh weight. Although exposure to the metal was associated with reduced ornithine decarboxylase (ODC) activity, this was accompanied by greatly increased putrescine and ...
Zarb, J, Walters, DR
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Nitrous oxide production by the ectomycorrhizal fungi Paxillus involutus and Tylospora fibrillosa

FEMS Microbiology Letters, 2011
Nitrous oxide (N(2)O) production by filamentous fungi has been demonstrated in pure culture and has been estimated indirectly in soils. However, it is unknown whether ectomycorrhizal fungi can also produce N(2)O. We demonstrate for the first time the ability of nitrogen (N)-tolerant ectomycorrhizal fungi (Paxillus involutus and Tylospora fibrillosa ...
Miranda T Prendergast-Miller, Elizabeth M Baggs, David Johnson   +2 more
exaly   +4 more sources

Cytotoxicity of extracts from the mushroom Paxillus involutus

Toxicon, 1996
The cytotoxicity of extracts of freshly collected Paxillus involutus against murine (L929 and RAW 264.7) and human (HeLa and EAhy926) derived cell lines was investigated. The water extract (15.6-1000 micrograms/ml) did not affect the viability of cells, while the butanol extract reduced cell viability by 30-45% at the highest concentration tested (1 mg/
openaire   +2 more sources

Exploring health beneficial effects of poisonous mushroom Paxillus involutus Batsch Fr.

Drug and chemical toxicology (New York, N.Y. 1978)
In the present study, phenolic and flavonoid composition and biological properties of methanolic extract of wild growing Paxillus involutus collected in Serbia have been investigated.
J. Petrović, J. Glamočlija, S. Cvetković, Biljana Nikolić, U. Gašić, D. Robajac   +5 more
semanticscholar   +1 more source

Size and complexity of the nuclear genome of the ectomycorrhizal fungus Paxillus involutus

Fungal Genetics and Biology, 2002
The basidiomycete Paxillus involutus is forming ectomycorrhizal symbiosis with a broad range of forest trees. Reassociation kinetics on P. involutus nuclear DNA indicated a haploid genome size of 23 Mb including 11% of repetitive DNA. A similar genome size (20 Mb) was estimated by genomic reconstruction analysis using three single copy genes. To assess
Antoine, Le Quéré, Tomas, Johansson, Anders, Tunlid   +2 more
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Zinc Phosphate Transformations by the Paxillus involutus/Pine Ectomycorrhizal Association

Microbial Ecology, 2006
In this research, we investigate zinc phosphate transformations by Paxillus involutus/pine ectomycorrhizas using zinc-resistant and zinc-sensitive strains of the ectomycorrhizal fungus under high- and low-phosphorus conditions to further understand fungal roles in the transformation of toxic metal minerals in the mycorrhizosphere.
Fomina, Marina, Charnock, John M., Hillier, Stephen, Alexander, Ian J., Gadd, Geoffrey M.   +4 more
openaire   +3 more sources

ChemInform Abstract: Structures Studies of the Metabolites of Paxillus involutus

ChemInform, 2009
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Lucyna Mikolajczyk, Wieslaw Z. Antkowiak
openaire   +1 more source