نتایج جستجو برای: hypogymnia physodes

تعداد نتایج: 82  

2011
Tatjana Mitrović Slaviša Stamenković Vladimir Cvetković Svetlana Tošić Milan Stanković Ivana Radojević Olgica Stefanović Ljiljana Čomić Dragana Đačić Milena Ćurčić Snežana Marković

The antioxidative, antimicrobial and antiproliferative potentials of the methanol extracts of the lichen species Parmelia sulcata, Flavoparmelia caperata, Evernia prunastri, Hypogymnia physodes and Cladonia foliacea were evaluated. The total phenolic content of the tested extracts varied from 78.12 to 141.59 mg of gallic acid equivalent (GA)/g of extract and the total flavonoid content from 20....

2014
Paweł Jodłowski Chau Nguyen Dinh

Concentration of activity of Cs-137 and its spatial distribution in soils and lichen Hypogymnia physodes were determined in the Gorce Mts. (several hundred km2) in S Poland. The authors distinguished two areas of the Gorce Mts. on the basis of markedly different Cs-137 depositions, whose respective average values are 4.4 and 9.9 kBq/m2 as at 1st July 2005. The average Cs-137 activity concentrat...

Journal: :Journal of environmental biology 2011
Demet Cansaran-Duman

The use of biological responses to contaminant exposure by lichen species has become a useful tool in environmental quality evaluation and risk assesment. Lichen Hypogymnia physodes and Usnea hirta samples were collected in 2006 from 10 sites around iron-steel factory in Karabük, Turkey. H. physodes and U. hirta samples from Yenice forest were used as a control. The aim of present study was to ...

Journal: : 2021

The paper presents the results of determining 137Cs content in biomass lichen Hypogymnia physodes, which growing pine forests on territory Gomel region with various levels radioactive contamination.The research was carried out both conditionally clean and radioactively contaminated areas soil contamination density from 37 to 1488 kBq m-2. high accumulating capacity physodes relation shown, as w...

Journal: :Žurnal Belorusskogo gosudarstvennogo universiteta 2021

In vitro, the photoprotective, cytotoxic and photomodifying properties of hexane benzene extracts from widely distributed in Belarus lichens Cladonia arbuscula, Evernia prunastri, Hypogymnia physodes, Ramalina pollinaria Xanthoria parietina culture human keratinocytes (HaCAT), are estimated. It was found that these not they have a effect upon irradiation keratinocyte cultures with ultraviolet l...

Journal: : 2022

Lichens are considered by researchers as bioindicators of environmental pollution artificial radionuclides, including 137Cs. One these bioindicator species is epiphytic lichen Hypogymnia physodes (L.) Nyl, the use which for radioecological monitoring can be modified several factors: tree species, placement on (branches – trunk), height sampling, etc. The purpose this study was to investigate sp...

Journal: :Vestnik Tverskogo gosudarstvennogo universiteta 2021

Определены концентрации Ni, Cu, Pb, Cd, Fe, Mn, Zn в лишайниках Hypogymnia physodes (L.) Nyl., Pseudevernia furfuracea Zopf. на ели европейской, сосне обыкновенной и можжевельнике обыкновенном. Лишайники юго-восточном побережье Ладоги характеризуются низкими концентрациями металлов, которые можно использовать как регионально фоновые. We determined the concentrations of in lichens Zopf., collect...

Journal: :Journal of environmental radioactivity 2006
O W Purvis J Longden G Shaw P D J Chimonides T E Jeffries G C Jones I N Mikhailova B J Williamson

Multi-element content and uranium (U) isotopes were investigated in the lichen Hypogymnia physodes (native and transplants) sampled across a 60-km transect, centred on Karabash smelter town, from Turgoyak Lake (SW) to Kyshtym (NE) to investigate the origin of U. Kyshtym was the site of a major nuclear accident in 1957. (234)U/(238)U activity ratios in native thalli sampled during July 2001 were...

2018
Marta Zakrzewska Beata Klimek

The aim of the study was to assess the metal pollution in the vicinity of the Bukowno smelter near Olkusz in southern Poland. Birch and oak leaves, pine needles and a lichen Hypogymnia physodes, overgrowing pine bark were collected at stands at different distances from the smelter and analysed for cadmium (Cd), copper (Cu), lead (Pb) and zinc (Zn) content. Concentrations of metals in the lichen...

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