Katalog - Lichenological literature

39229

Dieu A., Millot M., Champavier Y., Mambu L., Chaleix V., Sol V. & Gloaguen V. (2014): Uncommon chlorinated xanthone and other antibacterial compounds from the lichen Cladonia incrassata, Planta Medica, 80: 931–935

Bioassay-guided fractionation of an extract of the lichen Cladonia incrassata against Staphylococcus aureus led to a novel compound, 1,5-dihydroxy-2,4,6-trichloro-7-methylxanthone (1), along with six known compounds: (−)-usnic acid (2), didymic acid (3), condidymic acid (4), squamatic acid (5), thamnolic acid (6), and prasinic acid (7). Didymic, condidymic, and prasinic acids were isolated for the first time from C. incrassata. Didymic, condidymic, and (−)-usnic acids were active against S. aureus … Read more...

39228

Tullus E., Randlane T., Saag A., Lutter R., Tullus A., Siller M.-L., Sopp R., Täll K., Vysotska N., Kaivapalu-Kaasik M., Ots K. & Tullus H. (2026): Mature hybrid aspen plantations on former agricultural land can enhance landscape connectivity for forest species, Trees, Forests and People, 23: 101161 [9 p.]

Fast-growing hybrid aspen has been widely planted on former agricultural lands in Northern and Eastern Europe to produce pulpwood and sequester carbon into woody biomass. The biodiversity of mature hybrid aspen plantations has so far been rarely analysed. Moreover, the potential of hybrid aspen plantations to host flora typical of European aspen stands – recognised as biodiversity hotspots in Eurasian boreal forests – has not been evaluated. This study focused on two organism groups with contrasting … Read more...

39227

Chrismas N., Cunliffe M., Adkins P. & Harley J. (2026): The chromosomal genome sequence of the Black Lichen, Lichina pygmaea (Lightf.) C.Agardh (Lichinales: Lichinaceae) and its associated microbial metagenome sequences [version 1; peer review: awaiting peer review], Wellcome Open Research, 11: 42 [12 p.]

We present a haploid genome assembly from an individual Lichina pygmaea (Black Lichen; Ascomycota; Lichinomycetes; Lichinales; Lichinaceae). The genome sequence has a total length of 32.42 megabases. The assembly is scaffolded into 7 chromosomal pseudomolecules. The mitochondrial genome has also been assembled, with a length of 47.95 kilobases. Gene annotation of this assembly on Ensembl identified 8 665 protein-coding genes. From the metagenome data, we recovered 9 bins, of which 4 were high-quality … Read more...

39226

Jönsson M., Hekkala A.-M., Clemmensen K., Kyaschenko J., Kärvemo S., Mielke L., Sjögren J. & Strengbom J. (2025): Inter-observer reliability in forest conservation value assessments, Forest Ecology and Management, 595: 123006 [11 p.]

Identifying and safeguarding forests of high conservation value is central to sustainable forest management. Qualitative and semi-quantitative surveys of forest conservation indicators often form the evidence base for management decisions. However, it remains unclear how consistently different surveyors assess such indicators using these methods. In this study, we evaluated inter-observer reliability (IOR) among triplets of professional biologists conducting independent surveys in 14 boreal, conifer-dominated … Read more...

39225

Howland J.W., Boggess L., Hollinger J.P. & Lendemer J.C. (2026): Karinomyces (Pilocarpaceae), a new genus for the Appalachian endemic Schadonia saulskelleyana, Bryologist, 129(1): 4–22

Schadonia saulskellyana is an endemic crustose lichen narrowly restricted to the fragmented high elevation spruce-fir forests of the central and Southern Appalachians. These communities are predicted to face rapid changes in temperatures and precipitation which may impact habitat suitability of many species including S. saulskellyana. The placement of S. saulskellyana within the family Pilocarpaceae was investigated through newly generated molecular data and phylogenetic analysis. Both Bayesian and … Read more...

39224

Kossowska M., Fałtynowicz W., Kowalewska A. & Piedgoń A. (2025): Lichens of the Ujście Warty National Park, Acta Mycologica, 60: 215424 [11 p.]

The first checklist of lichens occurring in the Ujście Warty National Park and its buffer zone is presented. The list is based primarily on the research conducted in years 2022–2024, but incorporates also the earlier literature data. During the research 138 lichen taxa were recorded, including 122 within the boundaries of the national park and 81 in its buffer zone. They represent various habitat groups: epiphytes (63 species), epixyles (59 species), epigeits (31 species), epiliths (39 species, … Read more...

39223

Nguyen T.T.T., Chollet-Krugler M., Lohézic-Le Dévéhat F., Rouaud I. & Boustie J. (2015): Mycosporine-like compounds in chlorolichens: Isolation from Dermatocarpon luridum and Dermatocarpon miniatum, and their photoprotective properties, Planta Medica Letters, 2(1): e1-e5

Two mycosporines were isolated for the first time in two chlorolichen species, Dermatocarpon luridum and Dermatocarpon miniatum. Mycosporine glutaminol (1) and mycosporine glutamicol (2) were isolated along with the ethyl ester of mycosporine glutamicol (3), which was formed during the purification process. Aqueous extracts and pure mycosporines were then investigated for their antioxidant activities and photoprotective properties along with their photostability and photocytotoxicity. Semi-purified … Read more...

39222

Mendonça S.C.S., de Vasconcelos C.M.L., Cruz J.S., Roman-Campos D., Menezes-Filho J.E.R., Anjos-Neto R.A., Martins D.L.C., Araújo A.A.S., da Silva L.C.C., Bezerra M.S., de Albuquerque-Júnior R.L.C. & Conde-Garcia E.A. (2017): (+)-usnic acid isolated from the lichen Cladonia substellata impairs myocardial contractility, Planta Medica International Open, 4: e59–e65

The scientific interest in (+)-usnic acid has grown because of its antitumor, cytotoxic, and antimicrobial activities as well as weight loss. However, overuse of usnic acid has been related with severe hepatotoxicity, making its use questionable. In this study, we decided to expand the knowledge of usnic acid biological activities by characterizing its effects on the mammalian myocardium as a potential pharmacological target. Usnic acid was isolated from samples of Cladonia substellata and submitted … Read more...

39221

Ureña-Vacas I., González-Burgos E., Divakar P.K. & Gómez-Serranillos M.P. (2022): Lichen depsidones with biological interest, Planta Medica, 88: 855–880

Depsidones are some of the most abundant secondary metabolites produced by lichens. These compounds have aroused great pharmacological interest due to their activities as antioxidants, antimicrobial, and cytotoxic agents. Hence, this paper aims to provide up-to-date knowledge including an overview of the potential biological interest of lichen depsidones. So far, the most studied depsidones are fumarprotocetraric acid, lobaric acid, norstictic acid, physodic acid, salazinic acid, and stictic acid. … Read more...

39220

Rositzki M.J., Raksat A., Simmons C.J., Smith C., Choi R.D.V., Wongwiwatthananukit S. & Chang L.C. (2026): A new trichlorinated xanthone and compounds isolated from Cladonia skottsbergii with Antimicrobial properties, Pharmaceuticals, 19(1): 174 [17 p.]

Background/Objectives: The global rise in multidrug-resistant (MDR) bacteria, particularly methicillin-resistant and methicillin-susceptible Staphylococcus aureus (MRSA and MSSA), continues to pose a major public health challenge, including in Hawaii. This underscores the need to discover new antimicrobial agents from natural sources. Guided by teachings from a Buddhist master regarding the medicinal value of lichens, we investigated the endemic Hawaiian lichen Cladonia skottsbergii. Methods: Specimens … Read more...