Katalog - Lichenological literature

33777

Araújo H.D.A., Silva H.A.M.F., Silva Júnior J.G., Albuquerque M.C.P.A., Coelho L.C.B.B. & Aires A.L. (2021): The natural compound hydrophobic usnic acid and hydrophilic potassium usnate derivative: Applications and comparisons, Molecules, 26(19): 5995 [11 p.]

Usnic acid is the best-studied lichen metabolite, presenting several biological activities, such as antibacterial, immunostimulating, antiviral, antifungal, anti-inflammatory, and antiparasitic agents; despite these relevant properties, it is a hydrophobic and toxic molecule. In this context, scientific research has driven the development of innovative alternatives, considering usnic acid as a source of raw material in obtaining new molecules, allowing structural modifications (syntheses) from it. … Read more...

33778

Fałtynowicz W. (2021): Jaka ma być ochrona gatunkowa? Część I. Ochrona gatunkowa porostów, czyli co tak naprawdę chronimy? [What is the species protection? Part I. Species protection of lichens, or what are we really protecting?], Wiadomości Botaniczne, 65: 653 [41 p.]

[in Polish with English abstract:] The article contains information on all lichen species included in the Regulation on the species protection of fungi. Their systematic position is put in order, their general and country distribution is discussed. For each species, suggestions regarding the need for their legal protection are also given. An in-depth analysis showed that the regulation does not actually contain 205, but 168 species currently growing in Poland. More than 35 names listed in the ordinance … Read more...

33779

Gaarder G., Jordal J.B. & Frisch A. (2021): Phaeographis inusta new to Norway, with comments on Arthothelium macounii, Graphis Scripta, 33(4): 59–66

Phaeographis inusta (Ach.) Müll. Arg. is reported from Norway for the first time, a southern, oceanic species which in Europe previously has been found north to East Jutland in Denmark. Arthothelium macounii (G. Merr.) W.J. Noble was recently reported from Norway. Here we add some short comments on the first record in Norway of this species. The two species were found on the same hazel shrub in a boreo-nemoral rainforest on the island of Stord, growing on smooth bark. The site, located on the west … Read more...

33780

Tønsberg T., Palice Z. & Timdal E. (2021): Marchantiana asserigena, a genus and species new to Norway, Graphis Scripta, 33(4): 67–78

Marchantiana asserigena is reported new to Norway from the south-west (counties Rogaland, Hordaland, Sogn og Fjordane, and Møre og Romsdal) at altitudes from near sea level to 393 m. It occurs on branches of trees and shrubs and has been found on 33 species of phorophytes (including two hybridigenous ones). Larix decidua was the phorophyte with most collections. Based on the present material M. asserigena seems to be widespread in urban and suburban areas and in the cultural landscape. It is likely … Read more...

33781

Kantvilas G. (2021): The lichen genus Enterographa Fée (Roccellaceae) in Tasmania, Muelleria, 40: 31–38

Five species of Enterographa Fée from Tasmania are treated: the foliicolous E. bella R.Sant., the corticolous E. divergens (Müll.Arg.) Redinger, and three saxicolous species, E. cretacea P.M.McCarthy & Elix, E. subgelatinosa (Stirt.) Redinger, and E. ophiolithica Kantvilas, the last being new to science. The new species is known only from Tasmania and is characterised by a whitish thallus that lacks lichen substances, black apothecia, 0.15–0.4 mm long, and by the (3–)5–7(–8)-septate … Read more...

33782

Fávaro A., do Nascimento A.G. & Coelho F.F. (2021): Urban environmental influences on heterocyst investment in Leptogium cyanescens (Collemataceae), Nova Hedwigia, 113: 259–277

Cyanobacteria perform biological nitrogen fixation (BNF) in specialized cells called heterocysts, and their differentiation is closely associated with the balance between carbon and nitrogen quantities. Although BNF is an important ecosystem function, there are no studies verifying the production of heterocysts in cyanolichens from different habitats. Therefore, we compared the densities of heterocysts in specimens located in an urban and a forested area. Leptogium cyanescens (Collemataceae) … Read more...

33783

Eckstein J., Brackel W. v., Rettig J., Cezanne R. & Eichler M. (2021): Erste Checkliste der flechtenbewohnenden Pilze Thüringens mit neuen Funden für das Bundesland, Haussknechtia, 15: 117–139

A first checklist of lichenicolous fungi of Thuringia with 130 species is presented. Refractohilum peltigerae und Unguiculariopsis lesdainii are new to Germany, and the species Arthonia parietinaria, Carbonea supersparsa, Didymocyrtis cladoniicola, D. slaptoniensis, Endococcus exerrans, Epilichen scabrosus, Karschia talcophila, Lichenochora obscuroides, Lichenodiplis pertusariicola, Lichenostigma cosmopolites, Lichenothelia rugosa, Merismatium heterophractum, Milospium lacoizquetae, Nectriopsis … Read more...

33784

Svensson M. & Westberg M. (2021): A new lichenicolous species of Carbonea (Ascomycota, Lecanoraceae) from northern Sweden, Phytotaxa, 522(3): 221–230

Carbonea is a widely distributed genus of lecideoid fungi, including both lichenized and non-lichenized, often parasitic species. We describe the new, non-lichenized species Carbonea tephromelae, based on material collected in the Swedish part of the Scandes. The new species is characterized by a colourless hypothecium, broadly ellipsoid to globose ascospores, and by growing on the thallus of the common saxicolous lichen Tephromela atra. It is similar to the likewise lichenicolous species C. … Read more...

33785

Jung P., Brust K., Schultz M., Büdel B., Donner A. & Lakatos M. (2021): Opening the gap: Rare lichens with rare cyanobionts – Unexpected cyanobiont diversity in cyanobacterial lichens of the order Lichinales, Frontiers in Microbiology, 12: 728378 [24 p.]

The last decades of research led to a change in understanding of lichens that are now seen as self-sustaining micro-ecosystems, harboring diverse microbial organisms in tight but yet not fully understood relationships. Among the diverse interdependencies, the relationship between the myco- and photobiont is the most crucial, determining the shape, and ecophysiological properties of the symbiotic consortium. Roughly 10% of lichens associate with cyanobacteria as their primary photobiont, termed … Read more...

33786

Salminen-Paatero S. & Paatero J. (2021): Transfer of natural radionuclides in terrestrial food chains—A review of investigations in Finland, International Journal of Environmental Research and Public Health, 18: 10577 [17 p.]

Transfer of natural radionuclides 210Pb, 210Po, 238U, and 228,230,232Th in subarctic food chains has been studied in Finland since the 1960s. The unique food chain lichen-reindeer-man related to Sami people in Finnish Lapland and other food chain options, from berries or mushrooms to man, have been explored and the activity concentrations of natural radionuclides in biological samples determined. The results from Finnish radioecological studies are summarized and differences in bioaccumulation between … Read more...