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Osyczka P, Myśliwa-Kurdziel B. Do the expected heatwaves pose a threat to lichens?: Linkage between a passive decline in water content in thalli and response to heat stress. PLANT, CELL & ENVIRONMENT 2024. [PMID: 38874284 DOI: 10.1111/pce.14999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 05/25/2024] [Accepted: 05/30/2024] [Indexed: 06/15/2024]
Abstract
Being poikilohydric, lichens are inherently exposed to alternating desiccation and hydration cycles. They can exhibit extraordinary resistance to extreme temperatures in a dehydrated state but thermal thresholds for hydrated lichens are lower. The ability of the lichen Cetraria aculeata to recovery after high temperature treatment (40°C, 60°C) at different air humidity levels (relative humidity [RH]: <15%, 25%, 50%, 75%, ≅100%) was examined to find a linkage between passive dehydration of the lichen and its physiological resistance to heat stress. The response to heating was determined by measuring parameters related to photosynthesis and respiration after 2- and 24-h recovery. A higher RH level resulted in a slower decline in relative water content (RWC) in hydrated thalli. In turn, the stress resistance of active thalli depended on the ambient humidity and associated RWC reduction. Elevated temperature had a negative impact on bioenergetic processes, but only an unnatural state of permanent full hydration during heat stress resulted in a lethal effect. Hydrated lichen thalli heated at 40°C and 50% relative humidity (RH) tended to be least susceptible to stress-induced damage. Although atypical climatic conditions may lead lichens to lethal thresholds, the actual likelihood of deadly threat to lichens due to heat events per se is debatable.
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Affiliation(s)
- Piotr Osyczka
- Institute of Botany, Faculty of Biology, Jagiellonian University, Krakow, Poland
| | - Beata Myśliwa-Kurdziel
- Department of Plant Physiology and Biochemistry, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
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Chowaniec K, Latkowska E, Skubała K. Effect of thallus melanisation on the sensitivity of lichens to heat stress. Sci Rep 2023; 13:5083. [PMID: 36977766 PMCID: PMC10049980 DOI: 10.1038/s41598-023-32215-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Accepted: 03/24/2023] [Indexed: 03/30/2023] Open
Abstract
Extreme climatic phenomena such as heat waves, heavy rainfall and prolonged droughts are one of the main problems associated with ongoing climate change. The global increase in extreme rainfalls associated with summer heatwaves are projected to increase in amplitude and frequency in the near future. However, the consequences of such extreme events on lichens are largely unknown. The aim was to determine the effect of heat stress on the physiology of lichen Cetraria aculeata in a metabolically active state and to verify whether strongly melanised thalli are more resistant than poorly melanised thalli. In the present study, melanin was extracted from C. aculeata for the first time. Our study showed that the critical temperature for metabolism is around 35 °C. Both symbiotic partners responded to heat stress, manifested by the decreased maximum quantum yield of PSII photochemistry, high level of cell membrane damage, increased membrane lipid peroxidation and decreased dehydrogenase activity. Highly melanised thalli were more sensitive to heat stress, which excludes the role of melanins as compounds protecting against heat stress. Therefore, mycobiont melanisation imposes a trade-off between protection against UV and avoidance of damage caused by high temperature. It can be concluded that heavy rainfall during high temperatures may significantly deteriorate the physiological condition of melanised thalli. However, the level of membrane lipid peroxidation in melanised thalli decreased over time after exposure, suggesting greater efficiency of antioxidant defence mechanisms. Given the ongoing climate changes, many lichen species may require a great deal of plasticity to maintain their physiological state at a level that ensures their survival.
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Affiliation(s)
- Karolina Chowaniec
- Institute of Botany, Faculty of Biology, Jagiellonian University, Gronostajowa 3, 30-387, Kraków, Poland
- Doctoral School of Exact and Natural Sciences, Jagiellonian University in Kraków, Prof. S. Łojasiewicza 11, 30-348, Kraków, Poland
| | - Ewa Latkowska
- Laboratory of Metabolomics, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387, Kraków, Poland
| | - Kaja Skubała
- Institute of Botany, Faculty of Biology, Jagiellonian University, Gronostajowa 3, 30-387, Kraków, Poland.
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Lõhmus A, Motiejūnaitė J, Lõhmus P. Regionally Varying Habitat Relationships in Lichens: The Concept and Evidence with an Emphasis on North-Temperate Ecosystems. J Fungi (Basel) 2023; 9:jof9030341. [PMID: 36983509 PMCID: PMC10056719 DOI: 10.3390/jof9030341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 03/07/2023] [Accepted: 03/08/2023] [Indexed: 03/14/2023] Open
Abstract
Habitat ecology of lichens (lichen-forming fungi) involves diverse adaptations to stressful environments where lichens use specific habitat conditions. Field observations confirm that such habitat ‘preferences’ can vary significantly across species’ distribution ranges, sometimes revealing abrupt changes over short distances. We critically review and generalize such empirical evidence as broad ecological patterns, link these with the likely physiological mechanisms and evolutionary processes involved, and outline the implications for lichen conservation. Non-replicated correlative studies remain only suggestive because the data are frequently compromised by sampling bias and pervasive random errors; further noise is related to unrecognized cryptic species. Replicated evidence exists for three macroecological patterns: (a) regional limiting factors excluding a species from a part of its microhabitat range in suboptimal areas; (b) microhabitat shifts to buffer regionally adverse macroclimates; (c) substrate suitability changed by the chemical environment, notably air pollution. All these appear to be primarily buffering physiological challenges of the adverse conditions at the macrohabitat scale or, in favorable environments, coping with competition or predation. The roles of plasticity, adaptation, dispersal, and population-level stochasticity remain to be studied. Although lichens can inhabit various novel microhabitats, there is no evidence for a related adaptive change. A precautionary approach to lichen conservation is to maintain long-term structural heterogeneity in lichen habitats, and consider lichen ecotypes as potential evolutionarily significant units and a bet-hedging strategy for addressing the climate change-related challenges to biodiversity.
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Affiliation(s)
- Asko Lõhmus
- Institute of Ecology and Earth Sciences, University of Tartu, J. Liivi 2, 50409 Tartu, Estonia
- Correspondence:
| | - Jurga Motiejūnaitė
- Laboratory of Mycology, Institute of Botany, Nature Research Centre, Žaliųjų Ežerų 49, LT-08406 Vilnius, Lithuania
| | - Piret Lõhmus
- Institute of Ecology and Earth Sciences, University of Tartu, J. Liivi 2, 50409 Tartu, Estonia
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Sánchez M, Ureña-Vacas I, González-Burgos E, Divakar PK, Gómez-Serranillos MP. The Genus Cetraria s. str.-A Review of Its Botany, Phytochemistry, Traditional Uses and Pharmacology. Molecules 2022; 27:molecules27154990. [PMID: 35956939 PMCID: PMC9370490 DOI: 10.3390/molecules27154990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 07/29/2022] [Accepted: 08/03/2022] [Indexed: 11/16/2022] Open
Abstract
The genus Cetraria s. str. (Parmeliaceae family, Cetrarioid clade) consists of 15 species of mostly erect brown or greenish yellow fruticose or subfoliose thallus. These Cetraria species have a cosmopolitan distribution, being primarily located in the Northern Hemisphere, in North America and in the Eurasia area. Phytochemical analysis has demonstrated the presence of dibenzofuran derivatives (usnic acid), depsidones (fumarprotocetraric and protocetraric acids) and fatty acids (lichesterinic and protolichesterinic acids). The species of Cetraria, and more particularly Cetraria islandica, has been widely employed in folk medicine for the treatment of digestive and respiratory diseases as decoctions, tinctures, aqueous extract, and infusions. Moreover, Cetraria islandica has had an important nutritional and cosmetic value. These traditional uses have been validated in in vitro and in vivo pharmacological studies. Additionally, new therapeutic activities are being investigated, such as antioxidant, immunomodulatory, cytotoxic, genotoxic and antigenotoxic. Among all Cetraria species, the most investigated by far has been Cetraria islandica, followed by Cetraria pinastri and Cetraria aculeata. The aim of the current review is to update all the knowledge about the genus Cetraria covering aspects that include taxonomy and phylogeny, morphology and distribution, ecological and environmental interest, phytochemistry, traditional uses and pharmacological properties.
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Shanmugam K, Srinivasan M, Neelakantan HG. Insights into in vitro phenotypic plasticity, growth and secondary metabolites of the mycobiont isolated from the lichen Platygramme caesiopruinosa. Arch Microbiol 2021; 204:90. [DOI: 10.1007/s00203-021-02685-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 10/29/2021] [Accepted: 11/01/2021] [Indexed: 12/01/2022]
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Scur MC, Kitaura MJ, de Paula JB, Spielmann AA, Lorenz AP. Contrasting variation patterns in Austroplaca hookeri and Rusavskia elegans (Teloschistaceae, lichenized Ascomycota) in maritime Antarctica. Polar Biol 2021. [DOI: 10.1007/s00300-021-02976-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Lücking R, Leavitt SD, Hawksworth DL. Species in lichen-forming fungi: balancing between conceptual and practical considerations, and between phenotype and phylogenomics. FUNGAL DIVERS 2021. [DOI: 10.1007/s13225-021-00477-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
AbstractLichens are symbiotic associations resulting from interactions among fungi (primary and secondary mycobionts), algae and/or cyanobacteria (primary and secondary photobionts), and specific elements of the bacterial microbiome associated with the lichen thallus. The question of what is a species, both concerning the lichen as a whole and its main fungal component, the primary mycobiont, has faced many challenges throughout history and has reached new dimensions with the advent of molecular phylogenetics and phylogenomics. In this paper, we briefly revise the definition of lichens and the scientific and vernacular naming conventions, concluding that the scientific, Latinized name usually associated with lichens invariably refers to the primary mycobiont, whereas the vernacular name encompasses the entire lichen. Although the same lichen mycobiont may produce different phenotypes when associating with different photobionts or growing in axenic culture, this discrete variation does not warrant the application of different scientific names, but must follow the principle "one fungus = one name". Instead, broadly agreed informal designations should be used for such discrete morphologies, such as chloromorph and cyanomorph for lichens formed by the same mycobiont but with either green algae or cyanobacteria. The taxonomic recognition of species in lichen-forming fungi is not different from other fungi and conceptual and nomenclatural approaches follow the same principles. We identify a number of current challenges and provide recommendations to address these. Species delimitation in lichen-forming fungi should not be tailored to particular species concepts but instead be derived from empirical evidence, applying one or several of the following principles in what we call the LPR approach: lineage (L) coherence vs. divergence (phylogenetic component), phenotype (P) coherence vs. divergence (morphological component), and/or reproductive (R) compatibility vs. isolation (biological component). Species hypotheses can be established based on either L or P, then using either P or L (plus R) to corroborate them. The reliability of species hypotheses depends not only on the nature and number of characters but also on the context: the closer the relationship and/or similarity between species, the higher the number of characters and/or specimens that should be analyzed to provide reliable delimitations. Alpha taxonomy should follow scientific evidence and an evolutionary framework but should also offer alternative practical solutions, as long as these are scientifically defendable. Taxa that are delimited phylogenetically but not readily identifiable in the field, or are genuinely cryptic, should not be rejected due to the inaccessibility of proper tools. Instead, they can be provisionally treated as undifferentiated complexes for purposes that do not require precise determinations. The application of infraspecific (gamma) taxonomy should be restricted to cases where there is a biological rationale, i.e., lineages of a species complex that show limited phylogenetic divergence but no evidence of reproductive isolation. Gamma taxonomy should not be used to denote discrete phenotypical variation or ecotypes not warranting the distinction at species level. We revise the species pair concept in lichen-forming fungi, which recognizes sexually and asexually reproducing morphs with the same underlying phenotype as different species. We conclude that in most cases this concept does not hold, but the actual situation is complex and not necessarily correlated with reproductive strategy. In cases where no molecular data are available or where single or multi-marker approaches do not provide resolution, we recommend maintaining species pairs until molecular or phylogenomic data are available. This recommendation is based on the example of the species pair Usnea aurantiacoatra vs. U. antarctica, which can only be resolved with phylogenomic approaches, such as microsatellites or RADseq. Overall, we consider that species delimitation in lichen-forming fungi has advanced dramatically over the past three decades, resulting in a solid framework, but that empirical evidence is still missing for many taxa. Therefore, while phylogenomic approaches focusing on particular examples will be increasingly employed to resolve difficult species complexes, broad screening using single barcoding markers will aid in placing as many taxa as possible into a molecular matrix. We provide a practical protocol how to assess and formally treat taxonomic novelties. While this paper focuses on lichen fungi, many of the aspects discussed herein apply generally to fungal taxonomy. The new combination Arthonia minor (Lücking) Lücking comb. et stat. nov. (Bas.: Arthonia cyanea f. minor Lücking) is proposed.
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Garrido-Benavent I, Pérez-Ortega S, de Los Ríos A, Mayrhofer H, Fernández-Mendoza F. Neogene speciation and Pleistocene expansion of the genus Pseudephebe (Parmeliaceae, lichenized fungi) involving multiple colonizations of Antarctica. Mol Phylogenet Evol 2020; 155:107020. [PMID: 33242583 DOI: 10.1016/j.ympev.2020.107020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 09/07/2020] [Accepted: 11/17/2020] [Indexed: 11/25/2022]
Abstract
Widespread geographic distributions in lichens have been usually explained by the high dispersal capacity of their tiny diaspores. However, recent phylogenetic surveys have challenged this assumption and provided compelling evidence for cryptic speciation and more restricted distribution ranges in diverse lineages of lichen-forming fungi. To evaluate these scenarios, we focus on the fungal genus Pseudephebe (Parmeliaceae) which includes amphitropical species, a distribution pattern whose origin has been a matter of debate since first recognized in the nineteenth century. In our study, a six-locus dataset and a broad specimen sampling covering almost all Earth's continents is used to investigate species delimitation in Pseudephebe. Population structure, gene flow and dating analyses, as well as genealogical reconstruction methods, are employed to disentangle the most plausible transcontinental migration routes, and estimate the timing of the origin of the amphitropical distribution and the Antarctic populations. Our results demonstrate the existence of three partly admixed phylogenetic species that diverged between the Miocene and Pliocene, and whose Quaternary distribution has been strongly driven by glacial cycles. Pseudephebe minuscula is the only species showing an amphitropical distribution, with populations in Antarctica, whereas the restricted distribution of P. pubescens and an undescribed Alaskan species might reflect the survival of these species in European and North American refugia. Our microevolutionary analyses suggest a Northern Hemisphere origin for P. minuscula, which could have dispersed into the Southern Hemisphere directly and/or through "mountain-hopping" during the Pleistocene. The Antarctic populations of this species are sorted into two genetic clusters: populations of the Antarctic Peninsula were grouped together with South American ones, and the Antarctic Continental populations formed a second cluster with Bolivian and Svalbard populations. Therefore, our data strongly suggest that the current distribution of P. minuscula in Antarctica is the outcome of multiple, recent colonizations. In conclusion, our results stress the need for integrating species delimitation and population analyses to properly approach historical biogeography in lichen-forming fungi.
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Affiliation(s)
- Isaac Garrido-Benavent
- Department of Biogeochemistry and Microbial Ecology, National Museum of Natural Sciences (MNCN-CSIC), Serrano 115 dpdo, E-28045 Madrid, Spain; Institute of Plant Sciences, Karl-Franzens-Universität Graz, Graz A-8010, Austria.
| | - Sergio Pérez-Ortega
- Department of Mycology, Real Jardín Botánico (CSIC), Plaza Murillo 2, E-28014 Madrid, Spain
| | - Asunción de Los Ríos
- Department of Biogeochemistry and Microbial Ecology, National Museum of Natural Sciences (MNCN-CSIC), Serrano 115 dpdo, E-28045 Madrid, Spain
| | - Helmut Mayrhofer
- Institute of Plant Sciences, Karl-Franzens-Universität Graz, Graz A-8010, Austria
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Degtjarenko P, Mark K, Moisejevs R, Himelbrant D, Stepanchikova I, Tsurykau A, Randlane T, Scheidegger C. Low genetic differentiation between apotheciate Usnea florida and sorediate Usnea subfloridana (Parmeliaceae, Ascomycota) based on microsatellite data. Fungal Biol 2020; 124:892-902. [PMID: 32948277 DOI: 10.1016/j.funbio.2020.07.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2020] [Revised: 07/15/2020] [Accepted: 07/22/2020] [Indexed: 10/23/2022]
Abstract
Accurate species delimitation has a pivotal role in conservation biology, and it is especially important for threatened species where decisions have political and economic consequences. Finding and applying appropriate character sets and analytical tools to resolve interspecific relationships remains challenging in lichenized fungi. The main aim of our study was to re-assess the species boundaries between Usnea subfloridana and Usnea florida, which have been phylogenetically indistinguishable until now, but are different in reproductive mode and ecological preferences, using fungal-specific simple sequence repeats (SSR), i.e. microsatellite markers. Bayesian clustering analysis, discriminant analysis of principal components (DAPC), minimal spanning network (MSN), and principal component analysis (PCA) failed to separate U. florida and U. subfloridana populations. However, a low significant differentiation between the two taxa was observed across all populations according to AMOVA results. Also, analysis of shared haplotypes and statistical difference in clonal diversity (M) supported the present-day isolation between the apotheciate U. florida and predominantly sorediate U. subfloridana. Our results do not provide a clear support either for the separation of species in this pair or the synonymization of U. florida and U. subfloridana. We suggest that genome-wide data could help resolve the taxonomic question in this species pair.
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Affiliation(s)
- Polina Degtjarenko
- Biodiversity and Conservation Biology, Swiss Federal Research Institute WSL, Zürcherstrasse 111, 8903, Birmensdorf, Switzerland; Department of Botany, University of Tartu, Lai 40, 51005, Tartu, Estonia; Institute of Life Sciences and Technology, Daugavpils University, Parādes 1a, 5401, Daugavpils, Latvia.
| | - Kristiina Mark
- Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Fr.R.Kreutzwaldi 1, 51006, Tartu, Estonia
| | - Rolands Moisejevs
- Institute of Life Sciences and Technology, Daugavpils University, Parādes 1a, 5401, Daugavpils, Latvia
| | - Dmitry Himelbrant
- Department of Botany, St. Petersburg State University, Universitetskaya Emb. 7-9, 199034, St. Petersburg, Russia; Laboratory of Lichenology and Bryology, Komarov Botanical Institute RAS, Professor Popov St. 2, 197376, St. Petersburg, Russia
| | - Irina Stepanchikova
- Department of Botany, St. Petersburg State University, Universitetskaya Emb. 7-9, 199034, St. Petersburg, Russia; Laboratory of Lichenology and Bryology, Komarov Botanical Institute RAS, Professor Popov St. 2, 197376, St. Petersburg, Russia
| | - Andrei Tsurykau
- Department of Biology, F. Skorina Gomel State University, Sovetskaja Str. 104, BY-246019, Gomel, Belarus; Department of Ecology, Botany and Nature Protection, Institute of Natural Sciences, Samara National Research University, Moskovskoye Shosse 34, 443086, Samara, Russia
| | - Tiina Randlane
- Department of Botany, University of Tartu, Lai 40, 51005, Tartu, Estonia
| | - Christoph Scheidegger
- Biodiversity and Conservation Biology, Swiss Federal Research Institute WSL, Zürcherstrasse 111, 8903, Birmensdorf, Switzerland
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Coalescence-based species delimitation using genome-wide data reveals hidden diversity in a cosmopolitan group of lichens. ORG DIVERS EVOL 2020. [DOI: 10.1007/s13127-019-00424-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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11
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Hurtado P, Prieto M, Martínez-Vilalta J, Giordani P, Aragón G, López-Angulo J, Košuthová A, Merinero S, Díaz-Peña EM, Rosas T, Benesperi R, Bianchi E, Grube M, Mayrhofer H, Nascimbene J, Wedin M, Westberg M, Martínez I. Disentangling functional trait variation and covariation in epiphytic lichens along a continent-wide latitudinal gradient. Proc Biol Sci 2020; 287:20192862. [PMID: 32156209 PMCID: PMC7126072 DOI: 10.1098/rspb.2019.2862] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Accepted: 02/17/2020] [Indexed: 11/12/2022] Open
Abstract
Characterizing functional trait variation and covariation, and its drivers, is critical to understand the response of species to changing environmental conditions. Evolutionary and environmental factors determine how traits vary among and within species at multiple scales. However, disentangling their relative contribution is challenging and a comprehensive trait-environment framework addressing such questions is missing in lichens. We investigated the variation in nine traits related to photosynthetic performance, water use and nutrient acquisition applying phylogenetic comparative analyses in lichen epiphytic communities on beech across Europe. These poikilohydric organisms offer a valuable model owing to their inherent limitations to buffer contrasting environmental conditions. Photobiont type and growth form captured differences in certain physiological traits whose variation was largely determined by evolutionary processes (i.e. phylogenetic history), although the intraspecific component was non-negligible. Seasonal temperature fluctuations also had an impact on trait variation, while nitrogen content depended on photobiont type rather than nitrogen deposition. The inconsistency of trait covariation among and within species prevented establishing major resource use strategies in lichens. However, we did identify a general pattern related to the water-use strategy. Thus, to robustly unveil lichen responses under different climatic scenarios, it is necessary to incorporate both among and within-species trait variation and covariation.
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Affiliation(s)
- P. Hurtado
- Área de Biodiversidad y Conservación, Departmento de Biología y Geología, Física y Química Inorgánica, Universidad Rey Juan Carlos, Móstoles, Madrid, Spain
| | - M. Prieto
- Área de Biodiversidad y Conservación, Departmento de Biología y Geología, Física y Química Inorgánica, Universidad Rey Juan Carlos, Móstoles, Madrid, Spain
| | | | | | - G. Aragón
- Área de Biodiversidad y Conservación, Departmento de Biología y Geología, Física y Química Inorgánica, Universidad Rey Juan Carlos, Móstoles, Madrid, Spain
| | - J. López-Angulo
- Área de Biodiversidad y Conservación, Departmento de Biología y Geología, Física y Química Inorgánica, Universidad Rey Juan Carlos, Móstoles, Madrid, Spain
| | - A. Košuthová
- Department of Botany, Swedish Museum of Natural History, Stockholm, Sweden
- Institute of Botany, Plant Science and Biodiversity Center, Slovak Academy of Sciences, Bratislava, Slovak Republic
| | - S. Merinero
- Área de Biodiversidad y Conservación, Departmento de Biología y Geología, Física y Química Inorgánica, Universidad Rey Juan Carlos, Móstoles, Madrid, Spain
- Department of Ecology, Environment and Plant Sciences, Stockholm University, Stockholm, Sweden
| | - E. M. Díaz-Peña
- Área de Biodiversidad y Conservación, Departmento de Biología y Geología, Física y Química Inorgánica, Universidad Rey Juan Carlos, Móstoles, Madrid, Spain
| | - T. Rosas
- CREAF, Bellaterra (Cerdanyola del Valles), Catalonia, Spain
| | - R. Benesperi
- Department of Biology, University of Florence, Firenze, Italy
| | - E. Bianchi
- Department of Biology, University of Florence, Firenze, Italy
| | - M. Grube
- Institute of Biology, Karl-Franzens-Universität Graz, Graz, Austria
| | - H. Mayrhofer
- Institute of Biology, Karl-Franzens-Universität Graz, Graz, Austria
| | - J. Nascimbene
- Department of Biological, Geological and Environmental Sciences, University of Bologna, Bologna, Italy
| | - M. Wedin
- Department of Botany, Swedish Museum of Natural History, Stockholm, Sweden
| | - M. Westberg
- Museum of Evolution, Uppsala University, Uppsala, Sweden
| | - I. Martínez
- Área de Biodiversidad y Conservación, Departmento de Biología y Geología, Física y Química Inorgánica, Universidad Rey Juan Carlos, Móstoles, Madrid, Spain
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Phylotypic Characterization of Mycobionts and Photobionts of Rock Tripe Lichen in East Antarctica. Microorganisms 2019; 7:microorganisms7070203. [PMID: 31323808 PMCID: PMC6681027 DOI: 10.3390/microorganisms7070203] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Revised: 07/13/2019] [Accepted: 07/16/2019] [Indexed: 01/26/2023] Open
Abstract
Saxicolous rock ripe lichens that grow on rocks in the East Antarctic fellfields were sampled for phylotypic characterization of its constituent mycobionts (fungi) and photobionts (algae and cyanobacteria). The rock tripe lichen-forming fungal and algal phylotypes were classified under the common lichen-forming genera of ascomycetes, namely, Umbilicaria, and green algae, namely, Trebouxia and Coccomyxa. However, phylotypes of the green algal chloroplasts and the lichen-associated cyanobacteria showed unexpectedly high diversity. The detected chloroplast phylotypes were not fully affiliated with the green algal genera Trebouxia or Coccomyxa. The predominant chloroplast phylotype demonstrated maximum resemblance to Neglectella solitaria, which is neither a known Antarctic species nor a typical lichen photobiont. Another dominant chloroplast phylotype belonged to the atypical Antarctic green algae family. Cyanobacterial phylotypes were dominated by those affiliated with the Microcoleus species rather than the well-known lichen-associates, Nostoc species. The occurrences of these Microcoleus-affiliated cyanobacterial phylotypes were specifically abundant within the Yukidori Valley site, one of the Antarctic Specially Protected Areas (ASPA). The ASPA site, along with another 50 km-distant site, yielded most of the cryptic diversity in the phylotypes of chloroplasts and cyanobacteria, which may contribute to the phenotypic variability within the rock tripe lichen photobionts.
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Kitaura MJ, Costa PC, Scur MC, Lorenz A.P. Genetic and morphological variations of the lichenized fungus Steinera intricata (Arctomiaceae, Lecanoromycetes) from southern South America to Antarctic Peninsula. Polar Biol 2019. [DOI: 10.1007/s00300-019-02486-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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14
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Ceker S, Orhan F, Sezen S, Gulluce M, Ozkan H, Aslan A, Agar G. Anti-mutagenic and Anti-oxidant Potencies of Cetraria Aculeata (Schreb.) Fr., Cladonia Chlorophaea (Flörke ex Sommerf.) Spreng. and Cetrelia olivetorum (Nyl.) W.L. Culb. & C.F. Culb.). IRANIAN JOURNAL OF PHARMACEUTICAL RESEARCH : IJPR 2018; 17:326-335. [PMID: 29755563 PMCID: PMC5937102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
In this study, the mutagenic and anti-mutagenic effects of methanol extract of three lichen species (Cetraria aculeata, Cladonia chlorophaea and Cetrelia olivetorum) were investigated by using E. coli-WP2, Ames-Salmonella (TA1535 and TA1537) and sister chromatid exchange (SCE) test systems. The results obtained from bacterial test systems demonstrated that methanol extracts of three lichen species have strong anti-mutagenic potencies on TA1535, TA1537 strains and to a lesser extent on E. coli-WP2 strain. The anti-oxidant level of human lymphocytes cells was determined in order to clarify the mechanism underlying the anti-mutagenic effects of these lichen species. Co-treatments of 5, 10 and 20 µg/mL concentrations of these three lichen species with AFB decreased the frequencies of SCE and the level of MDA and increased the amount of SOD, GSH and GPx which decreased by aflatoxin. The findings of this work have clearly demonstrated that Cetraria aculeata, Cladonia chlorophaea and Cetrelia olivetorum have significant anti-mutagenic effects which are thought to be partly due to the anti-oxidant activities and the interaction capability of lichen extracts with mutagen agents (Sodium azide, acridin, N-methyl-N'-nitro-N-nitrosoguanidine and aflatoxin B1).
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Affiliation(s)
- Selcuk Ceker
- Agri Ibrahim Cecen University, Faculity of Pharmacy, Agri, TR-04100, Turkey. ,Corresponding author: E-mail:
| | - Furkan Orhan
- Agri Ibrahim Cecen University, Central Research and Application Laboratory, Agri, TR-04100, Turkey.
| | - Selma Sezen
- Ataturk University, Faculty of Science, Department of Biology, Erzurum, TR-25240, Turkey.
| | - Medine Gulluce
- Ataturk University, Faculty of Science, Department of Biology, Erzurum, TR-25240, Turkey.
| | - Hakan Ozkan
- Ataturk University, Faculty of Science, Department of Biology, Erzurum, TR-25240, Turkey.
| | - Ali Aslan
- Yüzüncü Yıl University, Faculity of Pharmacy TR-65150, Turkey.
| | - Güleray Agar
- Ataturk University, Faculty of Science, Department of Biology, Erzurum, TR-25240, Turkey.
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Williams L, Colesie C, Ullmann A, Westberg M, Wedin M, Büdel B. Lichen acclimation to changing environments: Photobiont switching vs. climate-specific uniqueness in Psora decipiens. Ecol Evol 2017; 7:2560-2574. [PMID: 28428847 PMCID: PMC5395455 DOI: 10.1002/ece3.2809] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2016] [Revised: 01/17/2017] [Accepted: 01/18/2017] [Indexed: 01/25/2023] Open
Abstract
Unraveling the complex relationship between lichen fungal and algal partners has been crucial in understanding lichen dispersal capacity, evolutionary processes, and responses in the face of environmental change. However, lichen symbiosis remains enigmatic, including the ability of a single fungal partner to associate with various algal partners. Psora decipiens is a characteristic lichen of biological soil crusts (BSCs), across semi-arid, temperate, and alpine biomes, which are particularly susceptible to habitat loss and climate change. The high levels of morphological variation found across the range of Psora decipiens may contribute to its ability to withstand environmental change. To investigate Psora decipiens acclimation potential, individuals were transplanted between four climatically distinct sites across a European latitudinal gradient for 2 years. The effect of treatment was investigated through a morphological examination using light and SEM microscopy; 26S rDNA and rbcL gene analysis assessed site-specific relationships and lichen acclimation through photobiont switching. Initial analysis revealed that many samples had lost their algal layers. Although new growth was often determined, the algae were frequently found to have died without evidence of a new photobiont being incorporated into the thallus. Mycobiont analysis investigated diversity and determined that new growth was a part of the transplant, thus, revealing that four distinct fungal clades, closely linked to site, exist. Additionally, P. decipiens was found to associate with the green algal genus Myrmecia, with only two genetically distinct clades between the four sites. Our investigation has suggested that P. decipiens cannot acclimate to the substantial climatic variability across its environmental range. Additionally, the different geographical areas are home to genetically distinct and unique populations. The variation found within the genotypic and morpho-physiological traits of P. decipiens appears to have a climatic determinant, but this is not always reflected by the algal partner. Although photobiont switching occurs on an evolutionary scale, there is little evidence to suggest an active environmentally induced response. These results suggest that this species, and therefore, other lichen species, and BSC ecosystems themselves may be significantly vulnerable to climate change and habitat loss.
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Affiliation(s)
- Laura Williams
- Plant Ecology and SystematicsBiology InstituteUniversity of KaiserslauternKaiserslauternGermany
| | - Claudia Colesie
- Plant Ecology and SystematicsBiology InstituteUniversity of KaiserslauternKaiserslauternGermany
| | - Anna Ullmann
- Plant Ecology and SystematicsBiology InstituteUniversity of KaiserslauternKaiserslauternGermany
| | | | - Mats Wedin
- Department of BotanySwedish Museum of Natural HistoryStockholmSweden
| | - Burkhard Büdel
- Plant Ecology and SystematicsBiology InstituteUniversity of KaiserslauternKaiserslauternGermany
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Dal Grande F, Sharma R, Meiser A, Rolshausen G, Büdel B, Mishra B, Thines M, Otte J, Pfenninger M, Schmitt I. Adaptive differentiation coincides with local bioclimatic conditions along an elevational cline in populations of a lichen-forming fungus. BMC Evol Biol 2017; 17:93. [PMID: 28359299 PMCID: PMC5374679 DOI: 10.1186/s12862-017-0929-8] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Accepted: 03/01/2017] [Indexed: 12/12/2022] Open
Abstract
Background Many fungal species occur across a variety of habitats. Particularly lichens, fungi forming symbioses with photosynthetic partners, have evolved remarkable tolerances for environmental extremes. Despite their ecological importance and ubiquity, little is known about the genetic basis of adaption in lichen populations. Here we studied patterns of genome-wide differentiation in the lichen-forming fungus Lasallia pustulata along an altitudinal gradient in the Mediterranean region. We resequenced six populations as pools and identified highly differentiated genomic regions. We then detected gene-environment correlations while controlling for shared population history and pooled sequencing bias, and performed ecophysiological experiments to assess fitness differences of individuals from different environments. Results We detected two strongly differentiated genetic clusters linked to Mediterranean and temperate-oceanic climate, and an admixture zone, which coincided with the transition between the two bioclimates. High altitude individuals showed ecophysiological adaptations to wetter and more shaded conditions. Highly differentiated genome regions contained a number of genes associated with stress response, local environmental adaptation, and sexual reproduction. Conclusions Taken together our results provide evidence for a complex interplay between demographic history and spatially varying selection acting on a number of key biological processes, suggesting a scenario of ecological speciation. Electronic supplementary material The online version of this article (doi:10.1186/s12862-017-0929-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Francesco Dal Grande
- Senckenberg Biodiversity and Climate Research Centre (BiK-F), Senckenberganlage 25, 60325, Frankfurt am Main, Germany.
| | - Rahul Sharma
- Institut für Ökologie, Evolution und Diversität, Goethe-Universität Frankfurt, Max-von-Laue-Str. 9, 60438, Frankfurt am Main, Germany
| | - Anjuli Meiser
- Senckenberg Biodiversity and Climate Research Centre (BiK-F), Senckenberganlage 25, 60325, Frankfurt am Main, Germany.,Institut für Ökologie, Evolution und Diversität, Goethe-Universität Frankfurt, Max-von-Laue-Str. 9, 60438, Frankfurt am Main, Germany
| | - Gregor Rolshausen
- Senckenberg Biodiversity and Climate Research Centre (BiK-F), Senckenberganlage 25, 60325, Frankfurt am Main, Germany
| | - Burkhard Büdel
- Plant Ecology and Systematics, Biology Department, University of Kaiserslautern, 67653, Kaiserslautern, Germany
| | - Bagdevi Mishra
- Senckenberg Biodiversity and Climate Research Centre (BiK-F), Senckenberganlage 25, 60325, Frankfurt am Main, Germany
| | - Marco Thines
- Senckenberg Biodiversity and Climate Research Centre (BiK-F), Senckenberganlage 25, 60325, Frankfurt am Main, Germany
| | - Jürgen Otte
- Senckenberg Biodiversity and Climate Research Centre (BiK-F), Senckenberganlage 25, 60325, Frankfurt am Main, Germany
| | - Markus Pfenninger
- Senckenberg Biodiversity and Climate Research Centre (BiK-F), Senckenberganlage 25, 60325, Frankfurt am Main, Germany.,Institut für Ökologie, Evolution und Diversität, Goethe-Universität Frankfurt, Max-von-Laue-Str. 9, 60438, Frankfurt am Main, Germany
| | - Imke Schmitt
- Senckenberg Biodiversity and Climate Research Centre (BiK-F), Senckenberganlage 25, 60325, Frankfurt am Main, Germany. .,Institut für Ökologie, Evolution und Diversität, Goethe-Universität Frankfurt, Max-von-Laue-Str. 9, 60438, Frankfurt am Main, Germany.
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Molina MC, Divakar PK, Goward T, Millanes AM, Lumbsch HT, Crespo A. Neogene diversification in the temperate lichen-forming fungal genus Parmelia (Parmeliaceae, Ascomycota). SYST BIODIVERS 2016. [DOI: 10.1080/14772000.2016.1226977] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- M. Carmen Molina
- Departamento de Biología y Geología, Física y Química Inorgánica (Área de Biodiversidad y Conservación), ESCET, Universidad Rey Juan Carlos, Móstoles, 28933 Madrid, Spain
| | - Pradeep K. Divakar
- Departamento de Biología Vegetal II, Facultad de Farmacia, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Trevor Goward
- UBC Herbarium, Beaty Museum, University of British Columbia, Vancouver, BC V6T 1Z4, Canada
| | - Ana M. Millanes
- Departamento de Biología y Geología, Física y Química Inorgánica (Área de Biodiversidad y Conservación), ESCET, Universidad Rey Juan Carlos, Móstoles, 28933 Madrid, Spain
| | | | - Ana Crespo
- Departamento de Biología Vegetal II, Facultad de Farmacia, Universidad Complutense de Madrid, 28040 Madrid, Spain
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Shackletonia cryodesertorum (Teloschistaceae, Ascomycota), a new species from the McMurdo Dry Valleys (Antarctica) with notes on the biogeography of the genus Shackletonia. Mycol Prog 2016. [DOI: 10.1007/s11557-016-1204-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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19
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Alors D, Lumbsch HT, Divakar PK, Leavitt SD, Crespo A. An Integrative Approach for Understanding Diversity in the Punctelia rudecta Species Complex (Parmeliaceae, Ascomycota). PLoS One 2016; 11:e0146537. [PMID: 26863231 PMCID: PMC4749632 DOI: 10.1371/journal.pone.0146537] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2015] [Accepted: 12/18/2015] [Indexed: 11/23/2022] Open
Abstract
High levels of cryptic diversity have been documented in lichenized fungi, especially in Parmeliaceae, and integrating various lines of evidence, including coalescent-based species delimitation approaches, help establish more robust species circumscriptions. In this study, we used an integrative taxonomic approach to delimit species in the lichen-forming fungal genus Punctelia (Parmeliaceae), with a particular focus on the cosmopolitan species P. rudecta. Nuclear, mitochondrial ribosomal DNA and protein-coding DNA sequences were analyzed in phylogenetic and coalescence-based frameworks. Additionally, morphological, ecological and geographical features of the sampled specimens were evaluated. Five major strongly supported monophyletic clades were recognized in the genus Punctelia, and each clade could be characterized by distinct patterns in medullary chemistry. Punctelia rudecta as currently circumscribed was shown to be polyphyletic. A variety of empirical species delimitation methods provide evidence for a minimum of four geographically isolated species within the nominal taxon Punctelia rudecta, including a newly described saxicolous species, P. guanchica, and three corticolous species. In order to facilitate reliable sample identification for biodiversity, conservation, and air quality bio-monitoring research, these three species have been epitypified, in addition to the description of a new species.
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Affiliation(s)
- David Alors
- Departamento de Biología Vegetal II, Facultad de Farmacia, Universidad Complutense de Madrid, Plaza de Ramón y Cajal s/n, Madrid, Spain
| | - H. Thorsten Lumbsch
- Science and Education, Field Museum, Chicago, Illinois, United States of America
| | - Pradeep K. Divakar
- Departamento de Biología Vegetal II, Facultad de Farmacia, Universidad Complutense de Madrid, Plaza de Ramón y Cajal s/n, Madrid, Spain
| | - Steven D. Leavitt
- Science and Education, Field Museum, Chicago, Illinois, United States of America
| | - Ana Crespo
- Departamento de Biología Vegetal II, Facultad de Farmacia, Universidad Complutense de Madrid, Plaza de Ramón y Cajal s/n, Madrid, Spain
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20
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Leavitt SD, Kraichak E, Nelsen MP, Altermann S, Divakar PK, Alors D, Esslinger TL, Crespo A, Lumbsch T. Fungal specificity and selectivity for algae play a major role in determining lichen partnerships across diverse ecogeographic regions in the lichen‐forming family Parmeliaceae (Ascomycota). Mol Ecol 2015; 24:3779-97. [DOI: 10.1111/mec.13271] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2014] [Revised: 06/04/2015] [Accepted: 06/10/2015] [Indexed: 02/06/2023]
Affiliation(s)
- Steven D. Leavitt
- Committee on Evolutionary Biology University of Chicago Chicago IL USA
- Science & Education The Field Museum Chicago IL USA
| | - Ekaphan Kraichak
- Science & Education The Field Museum Chicago IL USA
- Department of Botany Faculty of Science Kasetsart University Bangkok Thailand
| | - Matthew P. Nelsen
- Geological and Environmental Sciences Stanford University Stanford CA USA
| | | | - Pradeep K. Divakar
- Departamento de Biología Vegetal II Facultad de Farmacia Universidad Complutense de Madrid Madrid Spain
| | - David Alors
- Departamento de Biología Vegetal II Facultad de Farmacia Universidad Complutense de Madrid Madrid Spain
| | | | - Ana Crespo
- Departamento de Biología Vegetal II Facultad de Farmacia Universidad Complutense de Madrid Madrid Spain
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21
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Leavitt SD, Lumbsch HT, Stenroos S, Clair LLS. Pleistocene speciation in North American lichenized fungi and the impact of alternative species circumscriptions and rates of molecular evolution on divergence estimates. PLoS One 2013; 8:e85240. [PMID: 24386465 PMCID: PMC3873437 DOI: 10.1371/journal.pone.0085240] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2013] [Accepted: 11/24/2013] [Indexed: 12/04/2022] Open
Abstract
Pleistocene climatic fluctuations influenced patterns of genetic variation and promoted speciation across a wide range of species groups. Lichens are commonly found in habitats that were directly impacted by glacial cycles; however, the role of Pleistocene climate in driving speciation in most lichen symbionts remains unclear. This uncertainty is due in part to limitations in our ability to accurately recognize independently evolving lichen-forming fungal lineages and a lack of relevant fossil calibrations. Using a coalescent-based species tree approach, we estimated divergence times for two sister clades in the genus Xanthoparmelia (Parmeliaceae) restricted to western North America. We assessed the influence of two different species circumscription scenarios and various locus-specific rates of molecular evolution on divergence estimates. Species circumscriptions were validated using the program BP&P. although speciation was generally supported in both scenarios, divergence times differed between traditional species circumscriptions and those based on genetic data, with more recent estimates resulting from the former. Similarly, rates of evolution for different loci resulted in variable divergence time estimates. However, our results unambiguously indicate that diversification in the sampled Xanthoparmelia clades occurred during the Pleistocene. Our study highlights the potential impact of ambiguous species circumscriptions and uncertain rates of molecular evolution on estimating divergence times within a multilocus species tree framework.
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Affiliation(s)
- Steven D. Leavitt
- Committee on Evolutionary Biology, University of Chicago, Chicago, Illinois, United States of America
- Science & Education, The Field Museum, Chicago, Illinois, United States of America
- Department of Biology and M. L. Bean Life Science Museum, Brigham Young University, Provo, Utah, United States of America
- * E-mail:
| | - H. Thorsten Lumbsch
- Science & Education, The Field Museum, Chicago, Illinois, United States of America
| | - Soili Stenroos
- Botanical Museum, Finnish Museum of Natural History, University of Helsinki, Helsinki, Finland
| | - Larry L. St. Clair
- Department of Biology and M. L. Bean Life Science Museum, Brigham Young University, Provo, Utah, United States of America
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Fernández-Mendoza F, Printzen C. Pleistocene expansion of the bipolar lichenCetraria aculeatainto the Southern hemisphere. Mol Ecol 2013; 22:1961-83. [DOI: 10.1111/mec.12210] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2012] [Revised: 12/11/2012] [Accepted: 12/13/2012] [Indexed: 11/30/2022]
Affiliation(s)
- Fernando Fernández-Mendoza
- Abt. Botanik und Molekulare Evolutionsforschung; Senckenberg Forschungsinstitut und Naturmuseum; Senckenberganlage 25 D-60325 Frankfurt am Main Germany
- Biodiversity and Climate Research Centre; Senckenberganlage 25 D-60325 Frankfurt am Main Germany
| | - Christian Printzen
- Abt. Botanik und Molekulare Evolutionsforschung; Senckenberg Forschungsinstitut und Naturmuseum; Senckenberganlage 25 D-60325 Frankfurt am Main Germany
- Biodiversity and Climate Research Centre; Senckenberganlage 25 D-60325 Frankfurt am Main Germany
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