Results 31 to 40 of about 503,811 (193)

Ecology of the lichen Cladonia botrytes in Sweden [PDF]

open access: yes, 2012
Rapid changes in the forest structure due to logging strongly affect lichen vegetation and can exceed tolerance of many organisms while being beneficial to others.
Bogomazova, Kristine
core   +1 more source

Ecophysiological adaptations of the lichen genera pseudocyphellaria and sticta to south temperate rainforests [PDF]

open access: yes, 1991
Temperate rainforests are a poorly researched habitat with respect to lichen ecophysiology in comparison to desert and polar regions. The evergreen, broadleaf forests provide a dim, moist environment that is relatively stable throughout the year. Lichens
Green, T.G. Allan, Lange, Otto L.
core   +1 more source

Depigmenting potential of lichen extracts evaluated by in vitro and in vivo tests [PDF]

open access: yesPeerJ, 2020
Melanin is the main pigment of human skin, playing the primary role of protection from ultraviolet radiation. Alteration of the melanin production may lead to hyperpigmentation diseases, with both aesthetic and health consequences.
Paola Malaspina   +10 more
doaj   +2 more sources

Identifying the origins of local atmospheric deposition in the steel industry basin of Luxembourg using the chemical and isotopic composition of the lichen Xanthoria parietina [PDF]

open access: yes, 2008
Trace metal atmospheric contamination was assessed in one of the oldest European industrial sites of steel production situated in the southern part of the Grand-Duchy of Luxembourg.
Perrone, T.   +13 more
core   +1 more source

Immunological abnormalities in lichen planus

open access: yes, 2022
Lichen planus is a chronic disease associated with the occurrence of characteristic papular pruritic lesions. The most significant immunological markers of lichen planus are cytokines.
Anna Susło, Aleksandra Ostrowska
core   +1 more source

Parmotrema hydrium, a new species of Parmeliaceae in southeastern Brazil

open access: yesActa Botânica Brasílica, 2013
Parmotrema hydrium is a new lichen species discovered during a survey of Parmeliaceae in the Cantareira mountain range of southeastern Brazil. In its medullary chemistry, the species contains several fatty acids and other substances, including small ...
Michel Navarro Benatti   +2 more
doaj   +1 more source

The Efficiency of Lichens in Air Biomonitoring in Teleorman County

open access: yesAtmosphere, 2023
In this work, we collected samples of lichens from the oaks of Pădurea Troianul, in the area of Teleorman county, to analyze the air quality, using the lichen biodiversity index and its determining factor.
Maria Magdalena Cernat Popa   +1 more
doaj   +1 more source

Comparison of Antioxidant Activity of Roccella phycopsis Ach. (Roccellaceae) and Flavoparmelia caperata L. Hale (Parmeliaceae) Lichens by Various Methods

open access: yesDüzce Üniversitesi Bilim ve Teknoloji Dergisi, 2016
The antioxidant activity of Roccella phycopsis Ach. and Flavoparmelia caperata L. Hale lichens was determined by their ability to scavenge free radicals like DPPH (2,2-diphenyl-1-picrylhydrazyl) and ABTS (2,2’-azinobis-(3-ethylbenzothiaziline-6-sulfonate)
Sinem AYDIN, Kadir KINALIOĞLU
doaj   +4 more sources

Lichen-Derived Compounds and Extracts as Biologically Active Substances with Anticancer and Neuroprotective Properties

open access: yesPharmaceuticals, 2021
Lichens are a source of chemical compounds with valuable biological properties, structurally predisposed to penetration into the central nervous system (CNS).
Elżbieta Studzińska-Sroka   +8 more
doaj   +1 more source

Allelopathic effect of the Cladonia verticillaris lichen extracts and fumarprotocetraric acid on the early growth of germinated seedlings in Allium cepa L. [PDF]

open access: yes, 1999
The allelopathic activity of the different type of Cladonia verticillaris lichen extracts and fumarprotocetraric acid on the early growth of A. cepa (IPA 6) germinated seedlings depends on their chemical composition and concentration, respectively.
Yano-Melo, Adriana M.   +2 more
core  

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