Katalog - Lichenological literature

34135

Davydov E.A. (2022): On the status of Umbilicaria aprina var. halei and U. canescens (Umbilicariaceae, lichenized Ascomycota), Phytotaxa, 533(1): 91–97

To clarify the nomenclature of Umbilicaria aprina var. halei and U. canescens, type material from LE and MIN was investigated. Description, measurements and photos of the thalloconidia of the type specimens are provided. According to our investigation Umbilicaria aprina var. halei is a synonym of U. rhizinata, and U. canescens is a synonym of U. aprina. Both species belong to the U. aprina group and are distinguished by the septation of their thalloconidia. Additional specimens identified by … Read more...

34137

Lee S., Jeong S.Y., Nguyen D.L., So J.E., Kim K.H., Kim J.H., Han S.J., Suh S.-S., Lee J.H. & Youn U.J. (2022): Stereocalpin B, a new cyclic depsipeptide from the Antarctic lichen Ramalina terebrata, Metabolites, 12: 141 [11 p.]

Stereocalpin B, a new cyclic depsipeptide (1), and a new dibenzofuran derivative (3), were isolated from the Antarctic lichen, Ramalina terebrata (Ramalinaceae), along with a known cyclic depsipeptide (2). The structures of new compounds were characterized by comprehensive spectrometric analyses; high-resolution fast atom bombardment mass spectrometry (HR-FABMS) and liquid chromatography-tandem mass spectrometry (LC-MS/MS). Stereocalpin B (1) existed in a rotameric equilibrium, which was confirmed … Read more...

34138

Pyrczak-Felczykowska A., Reekie T.A., Jąkalski M., Hać A., Malinowska M., Pawlik A., Ryś K., Guzow-Krzemińska B. & Herman-Antosiewicz A. (2022): The isoxazole derivative of usnic acid induces an ER stress response in breast cancer cells that leads to paraptosis-like cell death, International Journal of Molecular Science, 23: 1802 [21 p.]

Derivatives of usnic acid (UA), a secondary metabolite from lichens, were synthesized to improve its anticancer activity and selectivity. Recently we reported the synthesis and activity of an UA isoxazole derivative, named 2b, against cancer cells of different origins. Herein, the molecular mechanisms underlying its activity and efficacy in vivo were tested. The viability of breast cancer or normal cells has been tested using an MTT assay. Cell and organelle morphology was analyzed using … Read more...

34140

Cichowski D., Sutherland G.D., McNay R.S. & Sulyma R. (2022): Direct and indirect effects of habitat disturbances on caribou terrestrial forage lichens in montane forests of British Columbia, Forests, 13: 251 [27 p.]

Cumulative effects of increased forest harvesting, mountain pine beetle (Dendroctonus ponderosae; MPB) outbreaks, and wildfire in low-elevation lodgepole pine (Pinus contorta) forests could limit long-term winter habitat supply for the northern group of southern mountain caribou (Rangifer tarandus). In a 17 year longitudinal study of vegetation remeasurements at eight sites in north-central and west-central British Columbia (BC), we assessed responses of terrestrial caribou forage lichen abundances … Read more...

34143

Albornoz L., Torres-Benítez A., Moreno-Palacios M., Simirgiotis M.J., Montoya-Serrano S.A., Sepulveda B., Stashenko E., García-Beltrán O. & Areche C. (2022): Phylogenetic studies and metabolite analysis of Sticta species from Colombia and Chile by ultra-high performance liquid chromatography-high resolution-Q-orbitrap-mass spectrometry, Metabolites, 12: 156 [16 p.]

Eleven species of lichens of the genus Sticta, ten of which were collected in Colombia (S. pseudosylvatica S. luteocyphellata S. cf. andina S. cf. hypoglabra, S. cordillerana, S. cf. gyalocarpa S. leucoblepharis, S. parahumboldtii S. impressula, S. ocaniensis) and one collected in Chile (S. lineariloba), were analyzed for the first time using hyphenated liquid chromatography with high-resolution mass spectrometry. In the metabolomic analysis, a total of 189 peaks were tentatively detected; the analyses … Read more...

34144

Bartemucci P., Lilles E. & Gauslaa Y. (2022): Silvicultural strategies for lichen conservation: smaller gaps and shorter distances to edges promote recolonization , Ecosphere, 13(1): e3898 [20 p.]

Conservation of epiphytic lichens in managed forest landscapes relies on understanding limitations to their dispersal and establishment after harvesting. A hot spot for cephalo- and cyanolichens, the Kispiox inland temperate rainforest of British Columbia, Canada, is an example of where forest managers seek silviculture options that allow for forest harvesting to continue, while also conserving threatened species. To characterize colonization of these lichens (including the nationally threatened … Read more...

34145

Elvebakk A. (2022): Psoroma femsjonense (Fr.) Trevis., a misunderstood species possibly extinct from Europe, Graphis Scripta, 34(2): 22–35

Psoroma femsjonense, long considered to be a synonym of P. hypnorum, is shown here to represent a distinct, misunderstood species. The collections seen are from the lowlands of southern Sweden, Denmark, Germany, the Czech Republic, and France. In these areas, the species has not been collected since 1945 and may prove to be regionally extinct from these countries. However, a report indicates that the species has recently been collected in high-altitude steppes in Anatolia of NE Turkey. Psoroma … Read more...

34146

Davydov E.A. (2022): Umbilicaria platyrhiza—a new Mediterranean endemic species of the subgenus Papillophora (Umbilicariaceae, lichenized Ascomycota), Phytotaxa, 533(2): 143–148

Umbilicaria platyrhiza Davydov sp. nov. is described within the Umbilicaria crustulosa – U. spodochroa species complex and illustrated. The new species resembles Umbilicaria crustulosa phenotypically, but is distinct by apothecia with a single gyrus of sterile tissue, grey-brown to black lower surface with flattened to strap-like rhizinomorphs, and by producing umbilicaric (vs. crustinic) acid. Umbilicaria platyrhiza inhabits silicate rocks at low elevations in the Mediterranean region of … Read more...

34157

Kalb K. (2022): The lichen genus Catillochroma (Ascomycota, Ramalinaceae). Three new species and eight new combinations, Archive for Lichenology, 30: 1–14

Three new species of Catillochroma are described, viz. C. danfordianum Kalb and C. maree- baense Kalb, both from Queensland, Australia, and C. phayapipakianum Kalb from Chiang Rai Province, Thailand. Eight species are transferred to Catillochroma, viz. C. alleniae, C. alligatorense, C. beechingii, C. bicoloratum, C. coralloideum, C. flavosorediatum, C. hainanese and C. yunnanense. Habit photographs of the new and some other species, mentioned in the text are provided. Read more...

34158

Aptroot A., de Souza M.F., Cáceres M.E.S, dos Santos L.A. & Spielmann A.A. (2022): New lichen records from Brazil, Archive for Lichenology, 31: 1–51

Based on recent records, 89 lichen species are reported as new to Brazil. For the genera Ancistrosporella, Jamesiella, Lambiella, Paulia, Polyblastia, Porocyphus, and Trimmatothele, it is the first time they are reported from Brazil. Many more, in total 523 species, are newly reported from individual states. Read more...