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Article: A revision of the Rostania occultata (Collemataceae) complex in Fennoscandia

Košuthová, Alica / Westberg, Martin / Wedin, Mats

Lichenologist. 2022 Jan., v. 54, no. 1

2022

Abstract: The Rostania occultata species complex (‘Collema occultatum s. lat.’) is revised in Fennoscandia and found to consist of four species, all epiphytes on deciduous trees: Rostania effusa A. Košuth., M. Westb. & Wedin sp. nov., R. occultata (Bagl.) Otálora ... ...

Abstract	The Rostania occultata species complex (‘Collema occultatum s. lat.’) is revised in Fennoscandia and found to consist of four species, all epiphytes on deciduous trees: Rostania effusa A. Košuth., M. Westb. & Wedin sp. nov., R. occultata (Bagl.) Otálora et al., R. pallida A. Košuth., M. Westb. & Wedin sp. nov. and R. populina (Th. Fr.) A. Košuth., M. Westb. & Wedin comb. nov. Rostania effusa and R. pallida are newly described from humid habitats in old-growth boreal coniferous forests, usually with a mixture of deciduous trees, and from similar areas in the subalpine birch-dominated forests of Fennoscandia. Rostania effusa is characterized by apothecia with red-brown apothecium discs and an excipulum thallinum with a simple pseudocortex and cubic to oblong, muriform spores. Rostania pallida has apothecia with whitish to pale yellowish discs and an excipulum thallinum with a distinct cellular pseudocortex, and ellipsoid, muriform mature spores that are often constricted at the centre. A lectotype is designated for Collema quadratum J. Lahm ex Körb. The new combination Rostania populina is introduced for the species recognized until now as the variety Rostania occultata var. populina (Th. Fr.) Perlmutter & Rivas Plata. A key to the six species in Rostania s. str. is included.
Keywords	Collema ; apothecia ; epiphytes ; lectotypes ; new combination ; Scandinavia
Language	English
Dates of publication	2022-01
Size	p. 13-24.
Publishing place	Cambridge University Press
Document type	Article
ZDB-ID	1471008-0
ISSN	1096-1135 ; 0024-2829
ISSN (online)	1096-1135
ISSN	0024-2829
DOI	10.1017/S0024282921000487
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: An Exception to the Rule? Could Photobiont Identity Be a Better Predictor of Lichen Phenotype than Mycobiont Identity?

Steinová, Jana / Holien, Håkon / Košuthová, Alica / Škaloud, Pavel

Journal of fungi (Basel, Switzerland)

2022 Volume 8, Issue 3

Abstract: With rare exceptions, the shape and appearance of lichen thalli are determined by the fungal partner; thus, mycobiont identity is normally used for lichen identification. However, it has repeatedly been shown in recent decades that phenotypic data often ... ...

Abstract	With rare exceptions, the shape and appearance of lichen thalli are determined by the fungal partner; thus, mycobiont identity is normally used for lichen identification. However, it has repeatedly been shown in recent decades that phenotypic data often does not correspond with fungal gene evolution. Here, we report such a case in a three-species complex of red-fruited
Language	English
Publishing date	2022-03-09
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2784229-0
ISSN	2309-608X ; 2309-608X
ISSN (online)	2309-608X
ISSN	2309-608X
DOI	10.3390/jof8030275
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Article ; Online: Species delimitation in the cyanolichen genus Rostania.

Košuthová, Alica / Bergsten, Johannes / Westberg, Martin / Wedin, Mats

BMC evolutionary biology

2020 Volume 20, Issue 1, Page(s) 115

Abstract: Background: In this study, we investigate species limits in the cyanobacterial lichen genus Rostania (Collemataceae, Peltigerales, Lecanoromycetes). Four molecular markers (mtSSU rDNA, β-tubulin, MCM7, RPB2) were sequenced and analysed with two ... ...

Abstract	Background: In this study, we investigate species limits in the cyanobacterial lichen genus Rostania (Collemataceae, Peltigerales, Lecanoromycetes). Four molecular markers (mtSSU rDNA, β-tubulin, MCM7, RPB2) were sequenced and analysed with two coalescent-based species delimitation methods: the Generalized Mixed Yule Coalescent model (GMYC) and a Bayesian species delimitation method (BPP) using a multispecies coalescence model (MSC), the latter with or without an a priori defined guide tree. Results: Species delimitation analyses indicate the presence of eight strongly supported candidate species. Conclusive correlation between morphological/ecological characters and genetic delimitation could be found for six of these. Of the two additional candidate species, one is represented by a single sterile specimen and the other currently lacks morphological or ecological supporting evidence. Conclusions: We conclude that Rostania includes a minimum of six species: R. ceranisca, R. multipunctata, R. occultata 1, R. occultata 2, R. occultata 3, and R. occultata 4,5,6. Three distinct Nostoc morphotypes occur in Rostania, and there is substantial correlation between these morphotypes and Rostania thallus morphology.
MeSH term(s)	Ascomycota/classification ; Bayes Theorem ; DNA, Ribosomal/genetics ; Genetic Markers ; Genetic Speciation ; Lichens/microbiology ; Models, Genetic ; Phylogeny ; Species Specificity
Chemical Substances	DNA, Ribosomal ; Genetic Markers
Language	English
Publishing date	2020-09-10
Publishing country	England
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ISSN	1471-2148
ISSN (online)	1471-2148
DOI	10.1186/s12862-020-01681-w
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Article ; Online: Rostania

Košuthová, Alica / Westberg, Martin / Tálora, Mónica A G / Wedin, Mats

MycoKeys

2019 , Issue 47, Page(s) 17–33

Abstract: Here, we test the current generic delimitation ... ...

Abstract	Here, we test the current generic delimitation of
Language	English
Publishing date	2019-02-20
Publishing country	Bulgaria
Document type	Journal Article
ZDB-ID	2630648-7
ISSN	1314-4049 ; 1314-4049
ISSN (online)	1314-4049
ISSN	1314-4049
DOI	10.3897/mycokeys.47.32227
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Article: Rostania revised: testing generic delimitations in Collemataceae (Peltigerales, Lecanoromycetes)

Košuthová, Alica / Westberg, Martin / tálora, Mónica A.G / Wedin, Mats

MycoKeys. 2019 Feb. 20, v. 47

2019

Abstract: Here, we test the current generic delimitation of Rostania (Collemataceae, Peltigerales, Ascomycota) utilizing molecular phylogeny and morphological investigations. Using DNA sequence data from the mitochondrial SSU rDNA and two nuclear protein-coding ... ...

Abstract	Here, we test the current generic delimitation of Rostania (Collemataceae, Peltigerales, Ascomycota) utilizing molecular phylogeny and morphological investigations. Using DNA sequence data from the mitochondrial SSU rDNA and two nuclear protein-coding genes (MCM7 and β-tubulin) and utilizing parsimony, maximum likelihood and Bayesian phylogenetic methods, Rostania is shown to be non-monophyletic in the current sense. A new generic delimitation of Rostania is thus proposed, in which the genus is monophyletic, and three species (Rostania coccophylla, R. paramensis, R. quadrifida) are excluded and transferred to other genera. Rostania occultata is further non-monophyletic, and a more detailed investigation of species delimitations in Rostania s. str. is needed. The new combinations Leptogium paramense and Scytinium quadrifidum are proposed.
Keywords	Collemataceae ; genes ; mitochondria ; monophyly ; new combination ; nucleotide sequences ; statistical analysis ; testing
Language	English
Dates of publication	2019-0220
Size	p. 17-33.
Publishing place	Pensoft Publishers
Document type	Article
Note	NAL-light
ZDB-ID	2630648-7
ISSN	1314-4049
ISSN	1314-4049
DOI	10.3897/mycokeys.47.32227
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Article: Phylogenomic reconstruction addressing the Peltigeralean backbone (Lecanoromycetes, Ascomycota)

Widhelm, Todd J. / Grewe, Felix / Goffinet, Bernard / Wedin, Mats / Goward, Trevor / Coca, Luis F. / Distefano, Isabel / Košuthová, Alica / Lumbsch, H. Thorsten

Fungal diversity. 2021 Sept., v. 110, no. 1

2021

Abstract: Rapid radiations in Fungi are only beginning to be studied with phylogenomic data. The evolutionary history of the lichenized fungal order Peltigerales has not been well resolved, particularly for the Collematineae. Here, we used concatenation and ... ...

Abstract	Rapid radiations in Fungi are only beginning to be studied with phylogenomic data. The evolutionary history of the lichenized fungal order Peltigerales has not been well resolved, particularly for the Collematineae. Here, we used concatenation and coalescent-based species tree methods to reconstruct the phylogeny of the Peltigerales based on sequences of 125 nuclear single-copy exon sequences among 60 samples, representing 58 species. Despite uneven, lineage-specific missing data and significant topological incongruence of individual exon trees, the resulting phylogenies were concordant and successfully resolved the phylogenetic relationships of the Peltigerales. Relationships in the Collematineae were defined by short branches and lower nodal support than in other parts of the tree, due in part to conflicting signal in exon trees, suggesting rapid diversification events in the early evolution of the suborder. Using tree distance measures, we were able to identify a minimum subset of exons that could reconstruct phylogenetic relationships in Peltigerales with higher support than the 125-exon dataset. Comparisons between the minimum and complete datasets in species tree inferences, bipartition analyses, and divergence time estimations displayed similar results, although the minimum dataset was characterized by higher levels of error in estimations of divergence times. Contrasting our inferences from the complete and minimum datasets to those derived from few nuclear and mitochondrial loci reveal that our topology is concordant with topologies reconstructed using the nuclear large subunit and mitochondrial small subunit ribosomal DNA markers, but the target capture datasets had much higher support values. We demonstrated how target capture approaches can effectively decipher ancient rapid radiations in cases where well resolved individual exon trees are sufficiently sampled and how to identify subsets of loci that are appropriate for fungal order-level phylogenetics.
Keywords	Peltigerales ; data collection ; exons ; fungi ; lichens ; mitochondria ; phylogeny ; ribosomal DNA ; topology ; trees
Language	English
Dates of publication	2021-09
Size	p. 59-73.
Publishing place	Springer Netherlands
Document type	Article
ZDB-ID	2424484-3
ISSN	1878-9129 ; 1560-2745
ISSN (online)	1878-9129
ISSN	1560-2745
DOI	10.1007/s13225-021-00476-8
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Article: Dehydration-induced changes in spectral reflectance indices and chlorophyll fluorescence of Antarctic lichens with different thallus color, and intrathalline photobiont

Miloš, Barták / Hájek Josef / Košuthová Alica / Morkusová Jana / Skácelová Kateřina

Acta physiologiae plantarum. 2018 Oct., v. 40, no. 10

2018

Abstract: In this study, we investigated responses of the Photochemical Reflectance Index (PRI), and Normalized Difference Vegetation Index (NDVI) to gradual dehydration of several Antarctic lichen species (chlorolichens: Xanthoria elegans, Rhizoplaca ... ...

Abstract	In this study, we investigated responses of the Photochemical Reflectance Index (PRI), and Normalized Difference Vegetation Index (NDVI) to gradual dehydration of several Antarctic lichen species (chlorolichens: Xanthoria elegans, Rhizoplaca melanophthalma, Physconia muscigena, cyanolichen: Leptogium puberulum), and a Nostoc commune colony from fully wet to a dry state. The gradual loss of physiological activity during dehydration was evaluated by chlorophyll fluorescence parameters. The experimental lichen species differed in thallus color, and intrathalline photobiont. In the species that did not exhibit color change with desiccation (X. elegans), NDVI and PRI were more or less constant (mean of 0.25, − 0.36, respectively) throughout a wide range of thallus hydration status showing a linear relation to relative water content (RWC). In contrast, the species with apparent species-specific color change during dehydration exhibited a curvilinear relation of NDVI and PRI to RWC. PRI decreased (R. melanophthalma, L. puberulum), increased (N. commune) or showed a polyphasic response (P. muscigena) with desiccation. Except for X. elegans, a curvilinear relation was found between the NDVI response to RWC in all species indicating the potential of combined ground research and remote sensing spectral data analyses in polar regions dominated by lichen flora. The chlorophyll fluorescence data recorded during dehydration (RWC decreased from 100 to 0%) revealed a polyphasic species-specific response of variable fluorescence measured at steady state—Fs, effective quantum yield of photosystem II (ΦPSII), and non-photochemical quenching (qN). Full hydration caused an inhibition of ΦPSII in N. commune while other species remained unaffected. The dehydration-dependent fall in ΦPSII was species-specific, starting at an RWC range of 22–32%. Critical RWC for ΦPSII was around 5–10%. Desiccation led to a species-specific polyphasic decrease in Fs and an increase in qN indicating the involvement of protective mechanisms in the chloroplastic apparatus of lichen photobionts and N. commune cells. In this study, the spectral reflectance and chlorophyll fluorescence data are discussed in relation to the potential of ecophysiological processes in Antarctic lichens, their resistance to desiccation and survival in Antarctic vegetation oases.
Keywords	chlorophyll ; color ; ecophysiology ; flora ; fluorescence ; Leptogium ; lichens ; normalized difference vegetation index ; Nostoc commune ; oases ; photochemistry ; photosystem II ; reflectance ; remote sensing ; spectral analysis ; thallus ; vegetation ; water content ; Xanthoria ; Antarctic region
Language	English
Dates of publication	2018-10
Size	p. 177.
Publishing place	Springer Berlin Heidelberg
Document type	Article
ZDB-ID	783102-x
ISSN	1861-1664 ; 0137-5881
ISSN (online)	1861-1664
ISSN	0137-5881
DOI	10.1007/s11738-018-2751-3
Database	NAL-Catalogue (AGRICOLA)

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Article: Ecological indicator values and life history traits of terricolous lichens of the Western Carpathians

Dingová Košuthová, Alica / Šibík, Jozef

Ecological indicators. 2013 Nov., v. 34

2013

Abstract: Plant indicator values are widely used in ecological studies, but they are not well developed for cryptogams, what prevents their application in some environments such as lichen-rich habitats. The aim of this study was to determine the ecological ... ...

Abstract	Plant indicator values are widely used in ecological studies, but they are not well developed for cryptogams, what prevents their application in some environments such as lichen-rich habitats. The aim of this study was to determine the ecological indicator values of terricolous lichens occurring in the Western Carpathians. A total of 271 lichen taxa from the eastern part of Central Europe in Czech Republic, Slovakia, Hungary and Austria are listed and evaluated. Their known indicator values for light conditions, climate (temperature, continentality), substratum (humidity, soil reaction-pH, nutrients, eutrophication) were reviewed or modified, and original values were established for taxa with missing information. Besides the traditional ordinal scale, the index of variability was established to distinguish between generalists and specialists in particular applications. Our list further contains important species traits such as ecological strategies (growth and life forms, photobiont type, substrate, reproduction) and geographic values (geographical elements, threat, frequency) allowing applications in functional ecology and macroecology. Our database can be easily associated with widely used software for the analysis of vegetation data allowing the indication of ecological conditions in lichen-rich vegetation types in currently developed large-scale vegetation surveys.
Keywords	climate ; computer software ; cryptogams ; databases ; eutrophication ; habitats ; humidity ; indicator species ; lichens ; life history ; nutrients ; reproduction ; soil ; surveys ; temperature ; vegetation types ; Austria ; Central European region ; Czech Republic ; Hungary ; Slovakia
Language	English
Dates of publication	2013-11
Size	p. 246-259.
Publishing place	Elsevier Ltd
Document type	Article
ZDB-ID	2036774-0
ISSN	1470-160X
ISSN	1470-160X
DOI	10.1016/j.ecolind.2013.05.013
Database	NAL-Catalogue (AGRICOLA)

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Article: Collolechia revisited and a re-assessment of ascus characteristics in Placynthiaceae (Peltigerales, Ascomycota)

KOŠUTHOVÁ, Alica / FERNÁNDEZ-BRIME, Samantha / WESTBERG, Martin / WEDIN, Mats

Lichenologist. 2016 Jan., v. 48, no. 1

2016

Abstract: We investigated the phylogenetic relationships in the cyanolichen family Placynthiaceae to test the current generic delimitations, where the monotypic Collolechia is currently accepted as distinct, based on differences in ascospores, ascus apex ... ...

Abstract	We investigated the phylogenetic relationships in the cyanolichen family Placynthiaceae to test the current generic delimitations, where the monotypic Collolechia is currently accepted as distinct, based on differences in ascospores, ascus apex characteristics and the leprose thallus. Bayesian and maximum likelihood phylogenetic analyses of two sequence marker datasets confirmed that Collolechia caesia is nested within Placynthium, and should be called Placynthium caesium (Fr.) Jatta. We reassessed the spore and ascus characteristics and showed that Placynthium caesium falls well within the variation in Placynthium and is thus yet another example of a species that differs from close relatives by its crustose-leprose thallus structure.
Keywords	Placynthium ; ascospores ; cesium ; data collection ; lichens ; phylogeny ; thallus
Language	English
Dates of publication	2016-01
Size	p. 3-12.
Publishing place	Cambridge University Press
Document type	Article
ZDB-ID	1471008-0
ISSN	1096-1135 ; 0024-2829
ISSN (online)	1096-1135
ISSN	0024-2829
DOI	10.1017/S0024282915000432
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Article: The impact of forest management on changes in composition of terricolous lichens in dry acidophilous Scots pine forests

DINGOVÁ KOŠUTHOVÁ, Alica / SVITKOVÁ, Ivana / PIŠÚT, Ivan / SENKO, Dušan / VALACHOVIČ, Milan

Lichenologist. 2013 May, v. 45, no. 3

2013

Abstract: This study focuses on dry acidophilous Scots pine forests, well known for their high biodiversity of cryptogams. We hypothesized that dense forests and heavy management were responsible for changes in species diversity, decreasing trends in lichen cover ... ...

Abstract	This study focuses on dry acidophilous Scots pine forests, well known for their high biodiversity of cryptogams. We hypothesized that dense forests and heavy management were responsible for changes in species diversity, decreasing trends in lichen cover and increasing moss cover. This hypothesis was tested in three types of Scots pine forests maintained under three different management regimes: 1) managed forests (forest plantations regenerated by planting), 2) semi-natural forests (forest plantations regenerated naturally), both located in the Borská nížina lowland in SW Slovakia, and 3) natural forests (primordial vegetation without visible management actions from the association Cladonio-Pinetum Juraszek 1928), located in the Bory Tucholskie National Park, NW Poland. We observed that the cover of the canopy tree layer had the most significant influence on the diversity of lichens. Managed forests are planted and maintained to achieve denser tree stocking, and although the environmental conditions created appear optimal for moss species, they are less suitable for terricolous lichens.
Keywords	Pinus sylvestris ; acid soils ; canopy ; coniferous forests ; cryptogams ; dry forests ; environmental factors ; forest management ; forest plantations ; lichens ; mosses and liverworts ; national parks ; planting ; species diversity ; trees ; Slovakia
Language	English
Dates of publication	2013-05
Size	p. 413-425.
Publishing place	Cambridge University Press
Document type	Article
ZDB-ID	1471008-0
ISSN	1096-1135 ; 0024-2829
ISSN (online)	1096-1135
ISSN	0024-2829
DOI	10.1017/S002428291300011X
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