Katalog - Lichenological literature

31323

Widhelm T.J., Grewe F., Huang J.-P., Mercado-Díaz J.A., Goﬃnet B., Lücking R., Moncada B., Mason-Gamer R. & Lumbsch H.T. (2019): Multiple historical processes obscure phylogenetic relationships in a taxonomically difficult group (Lobariaceae, Ascomycota), Scientific Reports, 9: 8968 [16 p.]

In the age of next-generation sequencing, the number of loci available for phylogenetic analyses has increased by orders of magnitude. But despite this dramatic increase in the amount of data, some phylogenomic studies have revealed rampant gene-tree discordance that can be caused by many historical processes, such as rapid diversification, gene duplication, or reticulate evolution. We used a target enrichment approach to sample 400 single-copy nuclear genes and estimate the phylogenetic relationships … Read more...

33385

Widhelm T.J., Grewe F., Huang J.‐P., Ramanauskas K., Mason‐Gamer R. & Lumbsch H.T. (2021): Using RADseq to understand the circum‐Antarctic distribution of a lichenized fungus, Pseudocyphellaria glabra, Journal of Biogeography, 48(1): 78–90

The Southern Ocean landmasses have intrigued biologists for centuries because they share many taxonomic groups. Such disjunct taxa can provide insight into evolutionary processes that connect populations or drive divergence. The lichenized fungus Pseudocyphellaria glabra, for example, has a disjunct distribution—separated by the Tasman Sea and the Pacific Ocean—yet whether these locations should be genetically distinct is unclear. The large distances between continents may be expected to prohibit … Read more...

16853

Widmer I., Dal Grande F., Cornejo C. & Scheidegger C. (2010): Highly variable microsatellite markers for the fungal and algal symbionts of the lichen Lobaria pulmonaria and challenges in developing biont-specific molecular markers for fungal associations, Fungal Biology, 114: 538-544

The availability of highly variable markers for the partners of a fungal symbiosis enables the integrated investigation of ecological and evolutionary processes at the symbiotic level. In this article we analyze the specificity of the first and to date only microsatellite markers that had been developed for an epiphytic lichen (Lobaria pulmonaria). We used DNA extracts from cultures of the fungal and of the green algal symbionts of L. pulmonaria as well as total DNA extracts from related Lobaria … Read more...

22409

Widmer I., Dal Grande F., Excoffier L., Holderegger R., Keller C., Mikryukov V.S. & Scheidegger C. (2012): European phylogeography of the epiphytic lichen fungus Lobaria pulmonaria and its green algal symbiont, Molecular Ecology, 21: 5827–5844

In lichen symbiosis, fungal and algal partners form close associations, often codispersed by vegetative propagules. Due to the particular interdependence, processes such as colonization, dispersal or genetic drift are expected to result in congruent patterns of genetic structure in the symbionts. To study the population structure of an obligate symbiotic system in Europe, we genotyped the fungal and algal symbionts of the epiphytic lichen Lobaria pulmonaria at eight and seven microsatellite … Read more...

37102

Widodo G.A., Kartikasari D., Ichyaiddina A.N. & Pitaloka D. (2023): Keragaman Lichen di Kawasan Wisata Alam Kandung Kabupaten Tulungagung, RADIKULA: Jurnal Ilmu Pertanian, 2(1): 47-59

Spesies lichen yang terdapat di kawasan wisata Alam Kandung Kabupaten Tulungagung belum teridentifikasi. Tujuan penelitian ini untuk mengetahui keragaman lichen yang ada di kawasan wisata Alam Kandung Kabupaten Tulungagung. Metode pengumpulan data yang digunakan adalah metode survey atau jelajah bebas yang dilakukan ditiga stasiun penelitian dengan ketinggian yang berbeda, yaitu 223 mdpl, 230 mdpl, dan 245 mdpl. Data hasil penelitian dianalisis secara deskriptif kuantitatif, disajikan dalam bentuk … Read more...

28445

Widory D., Vautour G. & Poirier A. (2018): Atmospheric dispersion of trace metals between two smelters: An approach coupling lead, strontium and osmium isotopes from bioindicators, Ecological Indicators, 84: 497–506

Bioindicators, by naturally cumulating the impacts of chemical contaminants over time, have demonstrated their added value in evaluating environmental quality. We studied Pb, Sr and Os isotope systematics from Cladonia rangiferina lichens collected along a transect between two smelting complexes located in Rouyn-Noranda and Sudbury (Canada) to identify sources of these metals in the Abitibi region and to delineate the extent of their respective emission plumes. Results show that metals present … Read more...

31191

Wieczorek A. (2018): The lichen genus Opegrapha s. l. in Poland: morphological variability, ecology, and distribution, Monographiae Botanicae, 107: 1–162

This monograph presents the results of research on the morphological and anatomical variability, ecology, and distribution of Opegrapha s. l. in Poland. The study is based on roughly 1,400 specimens from Polish and some European herbaria. Out of the 18 species of the genus Opegrapha s. l. recorded from Poland, seven species belong to the genus Opegrapha Ach., four species now belong to the genus Alyxoria Ach. ex Gray, two species each are found in the genera Arthonia Ach. and Zwackhia Körb, and … Read more...

15448

Wieczorek A. (2008): Autofluorescence of ascospores and conidial spores in selected lichen species of the Opegrapha genus, Acta Mycologica, 43(1): 99-103

The paper presents findings of the research work on autofluorescence phenomenon in ascospores and conidial spores that was carried out on 12 selected species of the Opegrapha genus occurring in Poland. Key words: lichens, Opegrapha, autofluorescence. Read more...

16124

Wieczorek A. (2009): Ultrastructural examination of the pycnidia and conidia of the genus Opegrapha (Arthoniales, Ascomycota), Acta Mycologica, 44(2): 165-171

The paper presents a summary of examinations on the variation of pycnidia and conidia of the following Opegrapha species occurring in Poland: O. atra, O. calcarea, O. dolomitica, O. gyrocarpa, O. niveoatra, O. rupestris, O. varia, O. vermicellifera, O. viridis and O. vulgata. Key words: lichens, Opegrapha, conidiomata, conidial spores, Poland. Read more...

7080

Wieczorek A. (2005): Biota porostów Szczecinskiego Parku Krajobrazowego [Lichen flora of the Szczecin Landscape Park], Fragmenta Floristica et Geobotanica Polonica, 12(1): 143–156

A list is provided of 206 lichen species collected in the Szczecin Landscape Park in Poland. Some of them are rare in the Polish lowlands. Keywords: lichens, Szczecin Landscape Park, Poland. Read more...