Katalog - Lichenological literature

37282

Saniewski M., Węgrzyn M.H., Fałowska P., Dziurowicz P., Waszkiewicz K. & Zalewska T. (2024): Determination of lichens’ bioaccumulation capacity for radioactive isotopes under laboratory conditions as a basis for their application as biomonitors, Applied Sciences, 14(23): 11455 [12 p.]

This study investigates the bioaccumulation capacity of the lichen Cladonia uncialis for radioactive isotopes, aiming to establish its potential as a biomonitor. Conducted under controlled laboratory conditions, the experiment utilised gamma-emitting isotopes to simulate fallout. The lichens were exposed to varying concentrations of these isotopes in three aquariums. The results demonstrated that the bioaccumulation of 54Mn, 57Co, 60Co, 65Zn, 137Cs, and 241Am by C. uncialis was proportional to their … Read more...

37281

Singh G., Dal Grande F. & Schmitt I. (2022): Genome mining as a biotechnological tool for the discovery of novel biosynthetic genes in lichens, Frontiers in Fungal Biology, 3: 993171

Natural products (NPs) and their derivatives are a major contributor to modern medicine. Historically, microorganisms such as bacteria and fungi have been instrumental in generating drugs and lead compounds because of the ease of culturing and genetically manipulating them. However, the ever-increasing demand for novel drugs highlights the need to bioprospect previously unexplored taxa for their biosynthetic potential. Next-generation sequencing technologies have expanded the range of organisms that … Read more...

37280

Koca F., Halici M., Işik Y. & Ünal G. (2022): Green synthesis of Ag-ZnO nanocomposites by using Usnea florida and Pseudevernia furfuracea lichen extracts and evaluation of their neurotoxic effects, Inorganic and Nano-Metal Chemistry, 54: 1-8

First time in this study, neuroprotective or neurotoxic effects of Pseudevernia furfuracea and Usnea florida lichen extracts based silver decorated zinc oxide nanocomposites (Ag-ZnO NCs) were evaluated. The characteristic light absorption point of P. furfuracea and U. florida based Ag-ZnO NCs were observed at 339 nm and 361 nm; effective diameter was detected at 342 nm and 495 nm. According to SEM analysis, the diameter of P. furfuracea and U. florida extract based NCs were approximately 35 nm and … Read more...

37279

Chavarria-Pizarro T., Resl P., Janjic A. & Werth S. (2022): Gene expression responses to thermal shifts in the endangered lichen Lobaria pulmonaria, Mol Ecol, 31(3): 839-858

Anthropogenic climate change has led to unprecedented shifts in temperature across many ecosystems. In a context of rapid environmental changes, acclimation is an important process as it may influence the capacity of organisms to survive under novel thermal conditions. Mechanisms of acclimation could involve upregulation of stress response genes involved in protein folding, DNA damage repair and the regulation of signal transduction genes, along with a simultaneous downregulation of genes involved … Read more...

37278

Ertz D. & Duvivier J.-P. (2022): Gregorella humida, a new lichen for Belgium, and notes on the Belgian status of two other cyanolichens, Fuscopannaria nebulosa and Protopannaria pezizoides [Gregorella humida, un lichen nouveau pour la Belgique, et notes sur le statut belge de deux autres cyanolichens, Fuscopannaria nebulosa et Protopannaria pezizoides], Dumortiera, 120: 15-22

During surveys of abandoned quarries in Entre-Sambre-et-Meuse in recent years, two superficially similar cyanolichens considered extinct or absent from Belgium were collected. The first, Gregorella humida (Arctomiaceae), is reported for the first time from Belgium. The species colonizes the soil of a kaolin sand quarry in Oret. It was only collected once in 2004, so this pioneer lichen could already have disappeared due to forest recolonization and backfilling of the quarry. The second, Fuscopannaria … Read more...

37277

Constantin M., Chioncel M.F., Petrescu L., Vrancianu C.O., Paun M., Cristian R.-E., Sidoroff M., Dionisie M.V. & Chifiriuc M.C. (2025): From rock to living systems: Lanthanides toxicity and biological interactions, Ecotoxicology and Environmental Safety, 289: 117494 [20 p.]

Since the discovery of lanthanides, the expanding range of applications and the growing demand for lanthanides in different aspects of life have escalated their dispersion in the environment, raising concerns about their impact on the living world. This review explores the interaction between lanthanides and different groups of living organisms (bacteria, algae, lichens, plants, invertebrates, and low vertebrates), reflecting the current state of scientific knowledge. We have aimed to provide a comprehensive … Read more...

37276

Timdal E. & Rui S. (2024): Contributions to the lichen flora of the province of Alberta, Canada, with the description of two new species and revised status for the subspecies of Toninia tristis, Opuscula Philolichenum, 23: 33–81

We report 53 species collected on a field trip to Alberta in 2018. We produced 57 ITS and 2 mtSSU sequences from that material, and phylogenetic reconstructions are presented for a part of Caloplaca s. lat., the Elixiaceae, Gypsoplaca, Thalloidima, and the subspecies of Toninia tristis. Two species are new to science, the soil crust lichen Caloplaca albosquamata and the saxicolous Elixia praeruptorum, both from Jasper National Park. With the exception of an undescribed species from Alaska, all sequenced … Read more...

37275

Søchting U. & Arup U. (2024): Revision of Marchantiana (Caloplacoideae, Teloschistaceae) – a misconceived lichen genus, Plant and Fungal Systematics, 695(2): 135–148

The genus Marchantiana has been a victim of changeable concepts, partly due to erroneous DNA sequences published with its description. Based on new molecular sequencing, new chemical analyses and additional field work, mainly in Patagonia, Tasmania and New Zealand, we present a new taxonomic classification for the genus and related species. M. michelagoensis is confirmed to belong to Marchantiana, and the genus Streimanniella, for which this species was the generic type, is synonymized with Marchantiana. … Read more...

37274

van den Boom P.P.G. & Brand A.M. (2024): A new Micarea species M. oleoprasina, containing oildroplets in the thallus, occuring in western Europe and Macaronesica, Archive for Lichenology, 44: 1–5

For the first time, a Micarea species has been found with oildroplets in the thallus, abundantly present and without known chemical compounds. Further characters are pale brownish coralloid thallus, pale apothecia of c. 0.35 mm and 0-1 septate, ellipsoid ascospores. It is known from Austria, Belgium, Ireland, Luxembourg, Canary Islands and Azores. Keywords: Europe, Macaronesia, taxonomy, Ascomycetes, Pilocarpaceae, Micarea prasina. Read more...

37273

van den Boom P.P.G., Lebreton E. & Magain N. (2024): A new lichen species, Scoliciosporum micareae (lichenized Ascomycota, Scoliciosporaceae), occuring in western Europe, Archive for Lichenology, 42: 1–12

Scoliciosporum micareae sp. nov. is described as new to science. The study is based on the DNA sequence of the mitochondrial ribosomal locus, as well as morpho-anatomical and chemical analyses. This species is distinguishable from others in the genus by its well-defined thallus warts or granules of 0.03‒0.2 mm wide, and slightly curved, (1‒)3-septate ascospores of 15‒20(‒22) × (2.0‒)2.5‒3.0 μm. So far, this new species is known to grow on tree trunks in Belgium, Germany and the Netherlands. Key … Read more...