JJH Katalog - Lichenological literature

35091

Coppins B.J. (1992): Literature pertaining to British lichens – 12 - British Lichen Society Bulletin, 71: 46-48

35095

Purvis O.W., Coppins B.J. & James P.W. (1993): Checklist of lichens of Great Britain and Ireland - British Lichen Society Bulletin (Supplement), 72(suppl.):1-75

British Isles, checklist, great britain, New: Biatora gyrophorica (Tønsb.) Coppins comb. nov., Cladonia polydactyla var. umbricola (Tønsb. & Ahti) Coppins comb. nov., Moelleropsis humida (Kullh.) Coppins & P. M. Jørg. comb. nov., Rimularia intercedens (Magnusson) Coppins comb. nov., R. mullensis (Stirton) Coppins comb. nov. New to the British Isles: Acarospora durietzii, Arthonia abelonae, Bacidia igniari, B. myrtillicola, Carbonea assimilis, Geltingia groenlandiae, Lecanora mughicola, L. persimilis, … Read more...

35096

Badiali C., Petruccelli V., Brasili E. & Pasqua G. (2023): Xanthones: biosynthesis and trafficking in plants, fungi and lichens. - Plants, 12(4): 694 [34 p.]

Xanthones are a class of secondary metabolites produced by plant organisms. They are characterized by a wide structural variety and numerous biological activities that make them valuable metabolites for use in the pharmaceutical field. This review shows the current knowledge of the xanthone biosynthetic pathway with a focus on the precursors and the enzymes involved, as well as on the cellular and organ localization of xanthones in plants. Xanthone biosynthesis in plants involves the shikimate and … Read more...

35097

Kováčik J., Husáková L., Piroutková M. & Babula P. (2023): Mercury content and amelioration of its toxicity by nitric oxide in lichens - Plants, 12(4): 727 [12 p.]

Mercury (Hg) content measured in five epiphytic lichen species collected in Slovakia mountain forests ranged from 30 to 100 ng/g DW and was species-specific, decreasing in the order Hypogymnia > Pseudevernia > Usnea > Xanthoria > Evernia prunastri (but polluted sites had no impact on Hg amount in Xanthoria). Evernia was therefore used to study the impact of short-term exogenous Hg (100 µM, 24 h) and possible amelioration of Hg toxicity by nitric oxide (NO) donor sodium nitroprusside (SNP). NO was … Read more...

35098

Galla R., Ferrari S., Ruga S., Mantuano B., Rosso G., Tonello S., Rosa L., Valenti P. & Uberti F. (2023): Effects of usnic acid to prevent infections by creating a protective barrier in an in vitro study. - International Journal of Molecular Sciences, 24(4): 3695 [14 p.]

Nasal sprays are medical devices useful for preventing infection and the subsequent spread of airborne pathogens. The effectiveness of these devices depends on the activity of chosen compounds which can create a physical barrier against viral uptake as well as incorporate different substances with antiviral activity. Among antiviral compounds, UA, a dibenzofuran derived from lichens, has the mechanical ability to modify its structure by creating a branch capable of forming a protective barrier. The … Read more...

35099

Kaasalainen U., Kirika P.M., Mollel N.P., Hemp A. & Rikkinen J. (2023): The lichen genus Sticta (Lobariaceae, Peltigerales) in East African montane ecosystems. - Journal of Fungi, 9(2): 246 [42 p.]

The lichen flora of Africa is still poorly known. In many parts of the tropics, recent studies utilizing DNA methods have revealed extraordinary diversity among various groups of lichenized fungi, including the genus Sticta. In this study, East African Sticta species and their ecology are reviewed using the genetic barcoding marker nuITS and morphological characters. The studied regions represent montane areas in Kenya and Tanzania, including the Taita Hills and Mt. Kilimanjaro, which belong to the … Read more...

35100

Hao Y., Yan Y., Zhang Q., Liu B., Wu C. & Wang L. (2023): Phytochemical composition, antimicrobial activities, and cholinesterase inhibitory properties of the lichen Usnea diffracta Vain %U https://www.frontiersin.org/articles/10.3389/fchem.2022.1063645 - Frontiers in Chemistry, 10:1063645

Lichens are important sources of versatile bioactive compounds. Two new dibenzofurans (1–2), a multi-substituted single benzene ring (3), and two organic acid compounds (4–5) along with 25 known compounds (6–30) were isolated from the lichen Usnea diffracta Vain. Their structures were identified by physicochemical properties and spectral analyses. Compounds 1–30 were tested for inhibitory activities against Staphylococcus aureus, Escherichia coli, and Candida albicans by the disk diffusion … Read more...