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Lichen, Cetraria

Landers et al. (1995) examined US arctic ecosystems from 1990 to 1993 and obtained low values for total Hg in two lichens Cetraria cucullata and Masonhalea richardsoni 0.043 and 0.056 xg g , respectively. Mereury values in liehens which showed a negative eonnection with distance from the marine coastline suggested the impact of natural sources, i.e. marine aerosols and lithologic sources associated with the coastal plain, in addition to anthropogenic sources industrial emissions by petroleum and natural gas industries located near Prudoe Bay and Barrow in Alaska. [Pg.267]

C22H16O12. Mr 472.36, needles, decomposing between 250 and 260 °C with evolution of gas and formation of fumaric acid poorly soluble in most organic solvents, very bitter taste. A depsidone with antibiotic activity from the lichen Cetraria islandica and various Clado-nia species. [Pg.246]

Gaskell SJ, Eglinton G, Bruun T (1973) Hydrocarbon constituents of three species of Norwegian lichens Cetraria nivalis, C. crispa, and Siphula ceratites. Phytochemistry 12 1174-1176... [Pg.458]

Krishnamurty HG, Prasad JS (1975) New and simple syntheses of olivetol. Tetrahedron Lett 2511-2512 Krishna Murty T (1960) Isolierung von p-Orcincarbonsauremethylester aus Parmelia tinctorum Despr. J Sci Ind Res (India) B 19 508-509 Krivoshchekova OE, Maximov OB, Stepanenko LS, Mishchenko NP (1982) Quinones of the lichen Cetraria cucullata. Phytochemistry 21 193-196... [Pg.464]

Solberg YJ (1986) Chemical constituents of the lichen species Cetraria islandica. J Hattori Bot Lab 60 391-406 Solberg YJ (1987) Chemical constituents of the lichens Cetraria delisei, Lobaria pulmonaria, Stereocaulon tomentosum and Usnea hirtUy J Hattori Bot Lab 63 357-366... [Pg.470]

Yosioka I, Yamauchi H, Murata K, Kitagawa I (1972d) Coloring substances of a lichen Cetraria ornata, Chem Pharm Bull 20 1082-1084... [Pg.474]

Turk AO, Yilmaz M, Kivanc M et al (2003) The antimicrobial activity of extracts of the lichen Cetraria aculeata and its protolichesterinic acid constituent. Z Naturforsch 58 850-854 Turk H, Yilmaz M, Tay T et al (2006) Antimicrobial activity of extracts of chemical races of the lichen Pseudevernia furfuracea and their physodic acid, chloroatranorin, atranorin, and olivetoric acid constituents. Z Naturforsch C 61 499-507 Verma N, Behera BC, Parizadeh H et al (2011) Bactericidal activity of some lichen secondary compounds of Cladonia ochrochlora, Parmotrema nilgherrensis aadParmotrema sancti-angelii. Int J Drug Dev Res 3 222-232... [Pg.26]

Acetone, diethyl ether, and ethanol extracts of the lichen Cetraria aculeata for their antimicrobial activity have been evaluated. The extracts were found active against Escherichia coli. Staphylococcus aureus, Aeromonas hydrophila, Proteus vulgaris. Streptococcus faecalis, Bacillus cereus. Bacillus subtilis. Pseudomonas aeruginosa, and Listeria monocytogenes. However, no antimicrobial activity against the fungi was detected (Tiirk et al. 2003). The lichen extract almost... [Pg.89]

Acetone, methanol and aqueous extracts of the lichens Cetraria islandica, Lecanora atra, Parmelia pertusa, Pseudevernia furfuracea and Umbilicaria cylindrica were found to possess effective antioxidant activities (Kosanic and Rankovic 2011a). Antioxidant activities of the tested extracts were studied by DPPH radical scavenging, superoxide anion radical scavenging and reducing... [Pg.114]

Zeytinoglu H, Incesu Z, TuyluAyaz B et al (2(X)8) Determinatirai of genotoxic, antigenotoxic and cytotoxic potential of the extract from lichen Cetraria aculeata (Schieb.) Fr. in vitro. Phytother Res 22(1) 118-123... [Pg.164]

Borkowski B, Wozniak W, Gertig H et al (1964) Bacteriostatic action of some compounds from lichen Cetraria islandica and of usnic acid. Dissertationes Pharmaceuticae 16 189-194 Boustie J, Grube M (2005) Lichens—a promising source of bioactive secondary metabolites. Plant Genet Resour Char Utiliz 3 273-283... [Pg.196]

Gulcin I, Oktay M, Kufrevioglu OI et al (2002) Determination of antioxidant activity of lichen Cetraria islandica (L) Ach. J Ethnopharmacol 79 325-329 Hager A, Brunauer G, Turk R et al (2008) Production and bioactivity of common lichen metabolites as exemplified by Heterodea muelleri (Hampe) Nyl. J Chem Ecol 34 113-120 Hale ME (1973) Growth. In Ahmadjian V, Hale ME (eds) The lichens. Academic, London, pp 473-492... [Pg.198]

Ingolfsdottir K, Hjahnarsdottrr MA, Sigurdsson A et al (1997a) In vitro susceptibility of Helicobacter pylori to protolichesterinic acid from the lichen Cetraria islandica. Antimicrob Agents Chem 41 215-217... [Pg.199]

This is a lichen, Cetraria islandica, which grows in all northern countries. Iceland, Norway, and Sweden export Iceland moss. When it is boiled with water it forms a jelly after cooling. Iceland moss is used like other gums—for foods, cosmetics, and textile sizing. The gum of Iceland moss is a polysaccharide containing uronic acid, galactose, mannose, and glucose. [Pg.570]

An Alkali-Soluble Polysaccharide, from the Oak Lichen Cetraria islandica (L.) Ach. Carbohydrate Res. 80, 291 (1980). [Pg.226]

Yosioka, L, H. Yamauchi, K. Murata, and I. Kitagawa Colouring Substance of a Lichen Cetraria ornata. Chem. Pharm. Bull. (Japan) 20, 1082 (1972). [Pg.234]

Hale, M. E., Jr. (1963). Populations of chemical strains in the lichen Cetraria ciliaris. Brittonia 15,126-133. [Pg.438]

Ingolfsdottir K, Hjalmarsdottir MA, Sigurdson A, Gudjonsdottir GA, Brynjolfs-dottir A, Steingrimsson O (1997) In vitro Susceptibility of Helicobacter pylori to Protolichesterinic Acid from the Lichen Cetraria islandica. Antimicrob Agents and Chemotherapy 41 215... [Pg.259]

Krivoshchekova OE, Maximov OB, Stepanenko LS, Mishchenko NP (1982) Quinones of the Lichen Cetraria cucullata. Phytochemistry 21 193... [Pg.261]

The lichen Cetraria islandica (Iceland moss) contains the structural polysaccharide lichenan, which is insoluble in cold water, and the related water-soluble polysaccharide isolichenan. Periodate oxidation and methylation studies indicate that lichenan is a linear glucan containing both / -D-(i - 3) and /S-D-(i 4) linkages in a ratio approximately 2 5, while isolichenan is similarly constituted but with the linkages in the ratio 3 2. Isolichenan has a TTP of 42-44. [Pg.219]


See other pages where Lichen, Cetraria is mentioned: [Pg.39]    [Pg.483]    [Pg.483]    [Pg.726]    [Pg.736]    [Pg.736]    [Pg.207]    [Pg.464]    [Pg.520]    [Pg.39]    [Pg.90]    [Pg.104]    [Pg.114]    [Pg.122]    [Pg.163]    [Pg.178]    [Pg.201]    [Pg.1]    [Pg.228]    [Pg.144]   
See also in sourсe #XX -- [ Pg.3 , Pg.5 , Pg.5 , Pg.9 , Pg.9 , Pg.9 ]




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