The crude extract contains many compounds along with the various lichen metabolites and it is very difficult to say which compound(s) has the antioxidant potential unless and until it is purified. In the previous Chapter 3 & 4 the biological activities of Usnea ghattensis attributed to the crude extract containing usnic acid and norstictic acid have been presented. In order to know the antioxid...

Seven lichens (Usnea antarctica and U. aurantiacoatra) and nine moss samples (Sanionia uncinata) collected in King George Island were analyzed using instrumental neutron activation analysis, and concentration of major and trace elements was calculated. For some elements, the concentrations observed in moss samples were higher than corresponding values reported from other sites in the Antarctica...

Atranorin 1, Usnic acid 2, and D-Arabinitol 3 were isolated from Usnea aciculifera by extensive column chromatography. The structures elucidated based on the comprehensive spectral analysis including FT IR, GC MS, ESI 13C NMR, 1H NMR. compounds evaluated for their cytotoxic activity against LN-229 glioblastoma cancer cell line performing Sulforhodamine B assay (SRB). 2 showed strong with an IC5...

Nineteen species of mostly epiphytic lichens from the forests of Nowshahr and Royan located in Mazandaran province (N Iran) are reported. Three species, Ochrolechia pallescens, Phaeophyscia confusa and Usnea longissima, are newly reported for lichenized mycota of Iran and seven species are new to the province. Additionally, a short history of lichenological exploration in the Hyrcanian forest i...

The present communication is reports a new record of Usnea hirta (L.) Weber ex F.H.Wigg. family Parmeliaceae collected from the Western Ghats Karnataka. differs already known U. ghattensis in having norstictic acid, fatty acid murolic group and presence isidia thallus.

Lichens, a symbiosis of fungi and algae, have been widely used for biological monitoring of environmental quality. As some lichen species are virtually cosmopolitan organisms, they may be used for a survey of organic, inorganic, or radioactive contaminants on more or less a global scale, as well as for regional comparisons, and certainly at a more local scale. Some examples will be given for th...

the rate and efficiency of decolorization of dyes likeblue ca, black b133, and corazol violet sr were tested to evaluate white rot fungal strains. trametes hirsuta and pleurotus florida showed the greatest extent ofdecolorization on nutrient salt media. maximum decolorization of 200 mg/l of blue 133 was obtained by 4days old incubated pleurotus florida followed bytrametes hirsuta after 6 days. ...