Biometrical parameters of two fruticose lichens from Antarctica (Usnea aurantiaco-atra, U. sphacelata) were studied using thallus cross-sections at basal, middle, and apical parts thallus. The diameter (TD), the thickness upper cortex (UCT), distribution symbiotic alga (Trebouxia sp.) in algal layer, medulla (MT), central cord diameter, area (CCD, CCA) measured. sphacelata had comparable relati...

Usnea barbata (L.) Weber ex F.H. Wigg (U. barbata) is a medicinal representative of the lichens from genus (Parmeliaceae, lichenized Ascomycetes), containing bioactive secondary metabolites. The aim this study comparative analysis between two separated parts thallus layers: medulla–cortex (mcUB) and central cord (ccUB) whole dried U. (dUB). These three samples were examined regarding color diff...

According to the results of study, it found that in upper reaches Malka River, most common is group birch forests with tallgrass vegetation cover, including Betuletum calamagrostioso-herbosum . Smaller areas occupied by complex herbaceous forests, represented Pineto-betuletum and a pine herbrich Pinetum Forest stands are mainly singlestorey, medium low-density, bonitet classes II-IV. The floris...

Acne is a cutaneous pleomorphic disorder of the pilosebaceous unit involving abnormalities in sebum production and is characterized by both inflammatory (papules, pustules and nodules) and no inflammatory (comedones, open and closed) lesions. Propionibacterium acnes and Staphylococcus epidermidis are common pus-forming microbes responsible for the development of various forms of, acne vulgaris....

The aim of this study was to investigate the chemical composition of acetone extracts of the lichens Toninia candida and Usnea barbata and in vitro antioxidant, antimicrobial, and anticancer activities of these extracts together with some of their major metabolites. The chemical composition of T. candida and U. barbata extracts was determined using HPLC-UV analysis. The major phenolic compounds...