Katalog - Lichenological literature

39249

de Abreu J., Barcenas-Peña A., Poengsungnoen V., Wang X., Huang J.-P., Lumbsch H.T. & Grewe F. (2026): High-throughput sequencing supports strong geographical patterns in the Cladia aggregata complex (Ascomycota, Lecanorales) and identifies the Asian clade as an independent species, Journal of Fungi, 12(2): 90 [17 p.]

The Cladia aggregata group of lichen-forming fungi comprises multiple species that are difficult to differentiate based on phenotypic characters. It has a wide distribution across several continents, but is most diverse in Australasia. We aimed to delimit the species complex further, investigate the relatedness of the lineages, and examine their distributional ranges and phenotypic traits. We used Restriction Site Associated DNA Sequencing (RAD-seq) to compare thousands of loci across 91 individuals … Read more...

39248

Uriac P., Ferron S., Jéhan P., Roisnel T. & Tomasi S. (2024): ∆-Keto-acid/hydroxy-lactone isomerization in some lichen depsides, depsidones and diphenyl ethers, Organic and Biomolecular Chemistry, 22(11): 2264–2270

In some compounds in lichens, the carboxylic acid is ortho-substituted by an 2-oxoalkyl chain. This particular structure induces the existence of δ-keto-acid ka or hydroxy-lactone hl isomers, clearly identified by their NMR data and chemical properties, such as dehydration, methylation and behaviour in thermal conditions. Internal hydrogen bonding between the carboxylic acid and substituent in the ortho′ position is proposed as an isomerization modulator: an H-bond acceptor (OCH3) leads to ka … Read more...

39247

Thadhani V.M., Choudhary M.I., Andersen R.J. & Karunaratne V. (2010): Novel entry into 5-decarboxydibenzofurans via Smiles rearrangement of the lichen para-depside, erythrin, Journal of Chemical Research, 34(3): 154–157

Erythrin, isolated in 7.3% yield from the lichen Roccella montagnei, was converted via a Smiles rearrangement to a series of diphenyl ethers. Those with a free carboxylic acid at C-1 underwent a novel decarboxylative oxidative cyclisation in the presence of Pd(OAc)2 to produce 5-decarboxydibenzofurans. All compounds were assayed for their antioxidant and β-glucuronidase enzyme inhibitory activity. Keywords: erythrin, Smiles rearrangement, 5-decarboxydibenzofurans, antioxidant activity, β-glucuronidase … Read more...

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Tamang D., Sarma M., Nayaka S., Upreti D.K., Kumar V. & Adhikari R.S. (2026): First report of lichens from Burachapori Wildlife Sanctuary with new records for Assam and India, Environment and Ecology, 44(1): 1–9

Although lichens significantly contribute to biodiversity and are crucial bioindicators of ecosystem health, their broad diversity is still inadequately studied in several regions. To provide fundamental data for ecological monitoring and planning for conservation, this study assessed lichen diversity, composition, and distribution across the study area. This work was performed in Burachapori Wildlife Sanctuary under the Nagaon Wildlife Division of Assam to document the lichen diversity for the first … Read more...

39245

Bargagli R. & Rota E. (2026): Potential role of mosses in evaluating airborne microplastic deposition in terrestrial ecosystems, Journal of Xenobiotics, 16(1): 21 [13 p.]

The deposition of airborne microplastics (MPs) poses potential risks to human health and terrestrial ecosystems. Therefore, suitable mitigation efforts are needed, as is knowledge of their deposition patterns in inhabited and remote regions. Currently, there are no standardized protocols for monitoring airborne MPs, and implementing and managing automatic monitoring systems would be costly and feasible only in a few fixed locations. Over the past few decades, several species of cryptogams have proven … Read more...

39244

孙汉董林中文沈晓羽钮芳娣周灿 [Sun H., Lin Z., Shen X., Niu F. & Zhou C.] (1986): 七种云南地衣植物的化学成分 [Studies on the chemical constituents of seven species of lichen plants in Yunnan], 云南植物研究 [Acta Botanica Yunnanica], 8(4): 483–488

[in Chinese with English abstract: ] Yunnan Province is very rich in Lichen plant resources, of which many kinds can be provided for the exploitation and utilization in food, vege- table, perfume, medicine, and dyestuff, etc. In their studies on the exploitation and utilization of Lichen plants, the authors examined the constituents of seven species of Lichen plants. The names of these plants and the isolated chemical constituents are as follows: 1. Alectoria asiatica DR. ...Usnic acid (1 ). 2. Alectoria … Read more...

39243

Brandão J.F.G., Santos N.P.S., Pereira E.C.G., da Silva N.H., Matos M.F.C., Bogo D. & Honda N.K. (2017): Effects of fumarprotocetraric acid, a depsidone from the lichen Cladonia verticillaris, on tyrosinase activity, Orbital: The Electronic Journal of Chemistry, 9(4): 256–260

Lichens are widely distributed around the world. Their phenolic compounds, consisting mainly of depsides and depsidones, have been extensively studied for important biological activities. More recently, these compounds have been evaluated for their inhibitory activity against enzymes such as tyrosinase, a key agent in melanin biosynthesis. In the present investigation, the depsidone fumarprotocetraric acid isolated from the lichen Cladonia verticillaris (Raddi) Fr. was evaluated for its inhibitory … Read more...

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Prokopiev I., Chesnokov S., Serebryakov E. & Konoreva L. (2022): Chemical variation in the Arctoparmelia separata (Parmeliaceae, Lichenized Ascomycota), Biochemical Systematics and Ecology, 102: 104418 [8 p.]

In the present study, we characterized the chemical variability of Arctoparmelia separata (Th. Fr.) Hale lichens are distributed in the Asian part of Russia and the northern part of North America to detect diversities within the species by high-performance liquid chromatography-mass spectrometry (HPLC-MS). A new chemotype of A. separata, containing stictic acid and related β-orcinol depsidones was identified. The difference in chemical composition correlated with geographical distribution, but not … Read more...

39241

Lishtva A.V. (2025): Geographical elements and arealogical groups of epiphytic lichens of the Cisbaikal region, Geography and Natural Resources, 46(Suppl 1): S50–S54

On the territory of Cisbaikal region, 433 species of lichens have been identified, including 11 lichenicolous and 14 species of saprophytic fungus. In applying the ecological–zonal principle, four geographical elements were distinguished in the lichen flora: Arctic–alpine, boreal, nemoral, and multizonal, which in turn were subdivided into five distribution groups (arealogical groups): multiregional; Holarctic; Eurasian–North American; Eurasian, and Asian. The epiphytic lichen flora of the … Read more...

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Singh K., Goswami R.P., Kumar A., Joshi P. & Dhouni M. (2026): Aptness of lichen Hypotrachyna cirrhata biomass in biosorption of Cu(II) from synthetic wastewater, Water, Air, & Soil Pollution, 237: 422 [19 p.]

This study evaluates the biosorption potential of Hypotrachyna cirrhata for effective removal of Cu(II) ions from synthetic wastewater, emphasising its functional chemistry and adsorption behaviour. Atomic Absorption Spectroscopy (AAS) was used to quantify Cu(II) before and after biosorption. Fourier Transform Infrared (FTIR) spectroscopy analysis revealed shifts in hydroxyl, carboxyl, and carbonyl groups, demonstrating their involvement in surface complexation and metal-binding interactions. Scanning … Read more...