Katalog - Lichenological literature

34794

Medeiros I. & Lutzoni F. (2022): Contribution to a modern treatment of Graphidaceae biodiversity in South Africa: genera of tribe Graphideae with hyaline ascospores, Lichenologist, 54(5): 253-270

Additions and corrections are provided for the South African species of Graphidaceae tribe Graphideae with hyaline ascospores. Allographa oldayana I. Medeiros sp. nov. is described as new to science based on morphological, chemical and molecular data. The new species is characterized by lirellae with striate labia and a complete thalline margin, a completely carbonized excipulum, large, muriform ascospores, and the presence of hirtifructic acid. Allographa consanguinea (Müll. Arg.) Lücking, A. … Read more...

34795

Mkhize K., Minibayeva F. & Beckett R. (2022): Adaptions of photosynthesis in sun and shade in populations of some Afromontane lichens, Lichenologist, 54(5): 319-329

Photosynthetic organisms have evolved a great variety of mechanisms to optimize their use of sunlight. Some of the clearest examples of adaptations can be seen by comparing photosynthesis in different species and in different individuals of the same species that grow under high and low light levels. While the adaptations of sun and shade higher plants have been relatively well studied, much less information is available on the photobionts of lichenized Ascomycetes. An important adaptation that can … Read more...

34796

Nadel M. & Clerc P. (2022): Notes on the genus Usnea Adans. (lichenized Ascomycota, Parmeliaceae) from the islands of São Tomé and Príncipe in tropical West Africa, Lichenologist, 54(5): 271-289

An investigation of the genus Usnea, in the biodiversity hotspot of the Republic of São Tomé and Príncipe in tropical West Africa, is presented here. Fifteen species, or species aggregates, were recorded for the islands: Usnea articulata aggr., Usnea baileyi (Stirt.) Zahlbr., Usnea beckeri P. Clerc & Nadel, Usnea bicolorata Motyka, Usnea erinacea aggr., Usnea exasperata (Müll. Arg.) Motyka, Usnea firmula (Stirt.) Motyka, Usnea krogiana P. Clerc, Usnea longiciliata P. Clerc & Nadel, Usnea nodulosa … Read more...

34797

Temu S., Clerc P., Nadel M., Tibell L., Tibuhwa D. & Tibell S. (2022): Molecular, morphological and chemical variation of the Usnea pectinata aggregate from Tanzania, São Tomé and Príncipe, Lichenologist, 54(5): 291-298

This study investigated the molecular, chemical and morphological variation in the Usnea pectinata aggregate using 42 specimens, 22 from Tanzania and 20 from São Tomé and Príncipe. A total of 31 sequences (13 ITS, 13 nuLSU and 5 RPB1) were generated. The results are presented in two phylogenies: first a three-markers ‘backbone’ phylogeny for the U. pectinata aggregate, where six distinct, strongly supported subclades indicate considerable genetic variation in the dataset; and second, an ITS … Read more...

34798

Aptroot A. (2022): Foliicolous lichens and their lichenicolous fungi in Macaronesia and Atlantic Europe By Pieter PG van den Boom. 2021. Bibliotheca Lichenologica 111. Pp 197, 101 figures. Page size 14 × 21cm, weight 410 g. ISBN 978-3-443-58090-2. Paperback. Price: €89.00, Lichenologist, 54(5): 343

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34799

Fryday A.M., Beckett R.P. & Kirika P.M. (2022): Lichenology in Africa, Lichenologist, 54(5): 227-230

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34800

Marcano V. (2022): Eight new species of lichenized Basidiomycota in the genera Acantholichen, Cyphellostereum and Dictyonema s.str. (Agaricales, Hygrophoraceae) from northern South America, Phytotaxa, 574(3): 199–225

A study of Acantholichen P.M. Jørgensen, Cyphellostereum D.A. Reid and Dictyonema s.str. C. Agardh ex Kunth from the Venezuelan Andes (Sierra Nevada de Mérida) and the Guayana Highlands (Alto Orinoco) revealed the presence of eight species new to science, viz., Acantholichen dendroideus V. Marcano, Cyphellostereum mucuyense V. Marcano, Dictyonema andinum V. Marcano, D. duidense V. Marcano, D. laurae V. Marcano, D. subinvolutum V. Marcano, D. subsericeum V. Marcano and D. umbricola V. Marcano. … Read more...

34801

Schulz M., Schmitt I., Weber D. & Dal Grande F. (2022): Fungal host affects photosynthesis in a lichen holobiont, Journal of Fungi, 8(12): 1267 [10 p.]

Corals and lichens are iconic examples of photosynthetic holobionts, i.e., ecological and evolutionary units resulting from the tightly integrated association of algae and prokaryotic microbiota with animal or fungal hosts, respectively. While the role of the coral host in modulating photosynthesis has been clarified to a large extent in coral holobionts, the role of the fungal host in this regard is far less understood. Here, we address this question by taking advantage of the recent discovery of … Read more...

34807

Wang J., Zhao H., Guo Q. & Ding H. (2022): Identification and antibacterial activity of Thamnolia vermicularis and Thamnolia subuliformis, Journal of Microbiological Methods, 203: 106628 [8 p.]

Thamnolia vermicularis (Tv) and Thamnolia subuliformis (Ts) are two species from the same habitat with such similar external morphological characteristics that researchers often confuse the two in their scientific work and do not distinguish between them. This study applies three different methods to distinguish them. The diversity of endophytic fungi was also compared and their antibacterial activity in vitro was evaluated. The results show that all three methods can distinguish Tv and Ts, and can … Read more...

34811

Gupta A., Sahu N., Singh A.P., Singh V.K., Singh S.C., Upadhye V.J., Mathew A.T., Kumar R. & Sinha R.P. (2022): Exploration of novel lichen compounds as inhibitors of SARS-CoV-2 Mpro: Ligand-based design, molecular dynamics, and ADMET analyses, Applied Biochemistry and Biotechnology, 194: 6386–6406

In the year 2019–2020, the whole world witnessed the spread of a disease called COVID-19 caused by SARS-CoV-2. A number of effective drugs and vaccine has been formulated to combat this outbreak. For the development of anti-COVID-19 drugs, the main protease (Mpro) is considered a key target as it has rare mutations and plays a crucial role in the replication of the SARS CoV-2. In this study, a library of selected lichen compounds was prepared and used for virtual screening against SARS-CoV-2 Mpro … Read more...