Katalog - Lichenological literature

38097

Kuusisto I., Huttunen S. & Virtanen R. (2025): Tundra plant communities along the mesotopographic gradient in NE Finland, Nordic Journal of Botany, 2025(2): e04430 [12 p.]

In this study, we describe plant communities along the mesotopographic gradient in the low-elevation subcontinental mountains of NE Finland (Utsjoki region). We sampled vascular plants, bryophytes and lichens along 18 mesotopographic ridge-snowbed transects comprising a total of 180 plots. We used non-metric multidimensional scaling (NMDS) ordination with envfit to explore the differentiation of plant communities in relation to mesotopography, elevation, rock cover, cover of bare ground, snowbed … Read more...

38096

Millot M., Imbert C., Pouget C., Girardot M. & Mambu L. (2025): Lichen and its microbiome as an untapped source of anti-biofilm compounds, Chemistry and Biodiversity, 22(4): e202401557 [14 p.]

Lichen substances have been first described in the 1870s, and around 10 000 compounds have been isolated and characterized. Most of them have been evaluated for their activity on planktonic microorganisms (bacteria and fungi). More recently, microorganisms colonizing the lichen thallus have been isolated and identified using DNA sequencing, giving access to a wide diversity of culturable microorganisms. The increasing research in lichen-associated microbiomes in recent years has emphasized a wide … Read more...

38095

Ji Q. & Matsuda Y. (2025): Biosynthesis of depsides, depsidones, and diphenyl ethers from fungi and lichens, Asian Journal of Organic Chemistry, 14(2): e202400451 [14 p.]

Depsides are a class of natural products in which two or more (poly)phenolic acid derivatives are linked by an ester bond. Depsides and related natural products, such as depsidones and diphenyl ethers, are widespread in nature and exhibit a wide range of biological activities. Although their biosynthesis has attracted considerable research interest for many decades, it remained largely elusive until recently. Recent studies have revealed the molecular mechanisms underlying the biosynthesis of several … Read more...

38094

Finne E.A., Bjerke J.W., Stordal F. & Tallaksen L.M. (2025): Lichens are more tolerant against winter warming stress than vascular and non-vascular plants: Insights from an alpine field experiment, Journal of Ecology, 113(3): 518–530

Extreme weather events influence carbon cycling and lead to pervasive changes in ecosystem structure and function. Vegetation at high latitudes and in alpine bioclimatic zones can be particularly sensitive to winter warming events, which are short-lived climatic events where temperatures are unusually high and often include rainfall. With climate change the frequency and severity of winter warming events are increasing. We report here from a field experiment on a lichen-dominated ridge at a high … Read more...

38093

Worthy F.R., Schaefer D.A., Goldberg S.D., Wanasinghe D., Li H.L., Thiyagaraja V., Xu J.C., Wang L.S. & Wang X.Y. (2025): Simulated climate change impacts health, growth, photosynthesis, and reproduction of high-elevation epiphytic lichens, Ecosphere, 16(4): e70224 [57 p.]

Epiphytic lichens are especially threatened by accelerated climatic change at high elevations. All lichens are sensitive to atmospheric conditions. Treelines constrain epiphyte ability to migrate upward to follow suitable conditions. Thus, acclimation to changing conditions will likely determine their survival. To simulate lichen response to climate change, we conducted a translocation field experiment in three regions of the trans-Himalayas. Translocation of thalli to lower elevations simulated … Read more...

38092

Marioni J., Romero B.C., Mugas M.L., Martinez F., Gómez T.I., Morales J.M.N., Konigheim B.S., Borsarelli C.D. & Nuñez-Montoya S.C. (2025): The natural anthraquinone parietin inactivates Candida tropicalis biofilm by photodynamic mechanisms, Pharmaceutics, 17(5): 548 [14 p.]

Background/Objectives: Parietin (PTN), a blue-light absorbing pigment from Teloschistes spp. lichens, exhibit photosensitizing properties via Type I (superoxide anion, O2•−) and Type II (singlet oxygen, 1O2) mechanisms, inactivating bacteria in vitro after photoexcitation. We evaluate the in vitro antifungal activity of PTN against Candida tropicalis biofilms under actinic irradiation, its role in O2•− and 1O2 production, and the cellular stress response. Methods: Minimum inhibitory concentration … Read more...

38091

Sleptsov I.V., Rozhina S.M., Prokopiev I.A., Mikhailov V.V., Mestnikova A.A., Alekseev K.V., Zholobova Z.O. & Frolova D.A. (2025): The allelopathic effect of the epiphytic lichen Physcia alnophila on biochemical and growth processes in the tissues of Larix gmelinii in the cryolithozone, Forests, 16(5): 711 [21 p.]

Epiphytic lichens are integral to boreal forest ecosystems, yet their allelopathic interactions with host trees, particularly in cryolithozone regions, remain poorly understood. This study elucidates the physiological and biochemical impacts of the epiphytic lichen Physcia alnophila on Larix gmelinii (Gmelin larch), a keystone species in Siberian permafrost forests. By combining dendrochronology, GC–MS metabolomic analysis, and HPLC–ESI–MS/MS analysis, we demonstrate that the lichen’s primary … Read more...

38090

Jenkins B. & Richards T.A. (2019): Symbiosis: Wolf lichens harbour a choir of fungi, Current Biology, 29(3): R88-R90

Identification of the fungus Tremella as a consistent fourth component of wolf lichens further challenges the conventional view of lichen symbiosis as a mutualistic interaction between two players. Read more...

38089

Jiang T., Wang D., Meng B., Chi J., Laudon H. & Liu J. (2020[2019): The concentrations and characteristics of dissolved organic matter in high-latitude lakes determine its ambient reducing capacity, Water Research, 169: 115217

The reducing capacity (RC) of natural organic matter plays an important role in the carbon cycle and biogeochemical fates of environmental contaminants in the aquatic system. However, the electron donation potentials of dissolved organic matter (DOM) from high-latitude lakes are still uncertain. In this study, we collected DOM samples from high-latitude lakes across the Arctic and boreal regions in Sweden and Norway to investigate the effects of the DOM concentration and characteristics on its ambient … Read more...

38088

Nelsen M.P., Lücking R., Boyce C.K., Lumbsch H.T. & Ree R.H. (2020): The macroevolutionary dynamics of symbiotic and phenotypic diversification in lichens, Proceedings of the National Academy of Sciences U.S.A., 117(35): 21495-21503

Symbioses are evolutionarily pervasive and play fundamental roles in structuring ecosystems, yet our understanding of their macroevolutionary origins, persistence, and consequences is incomplete. We traced the macroevolutionary history of symbiotic and phenotypic diversification in an iconic symbiosis, lichens. By inferring the most comprehensive time-scaled phylogeny of lichen-forming fungi (LFF) to date (over 3,300 species), we identified shifts among symbiont classes that broadly coincided with … Read more...