• Arctic marine fungi: biomass, functional genes, and putative ecological roles 

      Hassett, Brandon Thomas; Borrego, Eli; Vonnahme, Tobias R.; Rämä, Teppo; Kolomiets, M.V.; Gradinger, Rolf (Journal article; Peer reviewed, 2019-02-11)
      Recent molecular evidence suggests a global distribution of marine fungi; however, the ecological relevance and corresponding biological contributions of fungi to marine ecosystems remains largely unknown. We assessed fungal biomass from the open Arctic Ocean by applying novel biomass conversion factors from cultured isolates to environmental sterol and CARD-FISH data. <br>We found an average of ...
    • Barrmaelia pseudobombarda (Ascomycota), a rare European species with a peculiar disjunct distribution 

      Mathiassen, Geir Harald; Granmo, Alfred; Rämä, Teppo (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-01-01)
      Lophium elegans (Mytilinidiales, Mytilinidiaceae) is recorded for the first time in northern Europe. It was found on Juniperus communis in two locations in Finnmark County, Norway, which represent the northernmost finds for the species. A morphological description of the species is given and its ecology and distribution discussed.
    • Characterization of Rhamnolipids Produced by an Arctic Marine Bacterium from the Pseudomonas fluorescence Group 

      Kristoffersen, Venke; Rämä, Teppo; Isaksson, Johan; Andersen, Jeanette H.; Gerwick, William H.; Hansen, Espen (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-05-14)
      The marine environment is a rich source of biodiversity, including microorganisms that have proven to be prolific producers of bioactive secondary metabolites. Arctic seas are less explored than warmer, more accessible areas, providing a promising starting point to search for novel bioactive compounds. In the present work, an Arctic marine Pseudomonas sp. belonging to the Pseudomonas (P.) fluorescence ...
    • Chlovalicin B, a Chlorinated Sesquiterpene Isolated from the Marine Mushroom Digitatispora marina 

      Jenssen, Marte; Kristoffersen, Venke; Motiram-Corral, Kumar; Isaksson, Johan; Rämä, Teppo; Andersen, Jeanette Hammer; Hansen, Espen; Østnes Hansen, Kine (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-12-13)
      As part of our search for bioactive metabolites from understudied marine microorganisms, the new chlorinated metabolite chlovalicin B (1) was isolated from liquid cultures of the marine basidiomycete Digitatispora marina, which was collected and isolated from driftwood found at Vannøya, Norway. The structure of the novel compound was elucidated by spectroscopic methods including 1D and 2D NMR and ...
    • Cultivable marine fungi from the Arctic Archipelago of Svalbard and their antibacterial activity 

      Hagestad, Ole Christian; Andersen, Jeanette hammer; Altermark, Bjørn; Hansen, Espen; Rämä, Teppo (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-12-27)
      During a research cruise in 2016, we isolated fungi from sediments, seawater, driftwood, fruiting bodies, and macroalgae using three different media to assess species richness and potential bioactivity of cultivable marine fungi in the High Arctic region. Ten stations from the Svalbard archipelago (73–80 °N, 18–31 °E) were investigated and 33 fungal isolates were obtained. These grouped into 22 ...
    • Desarmillaria ectypa ny for Norge 

      Rämä, Teppo (Journal article; Tidsskriftartikkel; Peer reviewed, 2023)
      Desarmillaria ectypa was found new to Norway on Kvaløya, Tromsø municipality on 30th of July 2022. This rare mushroom grows on medium rich to rich fens and mires. It can be identified based on the growth habitat, medium-sized fruitbodies with yellow and brownish colors, scales on the hat center, lack of veil, gills with pinkish tint and white spores. The ecology, distribution and red-list status of ...
    • Discovery and structural assignment of (S)-sydosine from amphipod-derived Aspergillus sydowii MBC15-11F through HRMS, advanced Mosher, and molecular modelling analyses 

      Qader, Mallique; Mweetwa, Larry L; Rämä, Teppo; Thissera, Bathini; Milne, Bruce F; Abdelmohsen, Usama R; Orfali, Raha; Tawfike, Ahmed; Esheli, Manal; Oluwabusola, Emmanuel T; Jaysainghe, Lalith; Jaspars, Marcel; Rateb, Mostafa E (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-07-21)
      Aims - This study aims to prioritize fungal strains recovered from under-explored habitats that produce new metabolites. HRMS dereplication is used to avoid structure redundancy, and molecular modelling is used to assign absolute configuration.<p> <p>Methods and results - MBC15-11F was isolated from an amphipod and identified using ITS, 28S, and β-tubulin phylogeny as Aspergillus sydowii. Chemical ...
    • Diversity and ecology of aphyllophoroid fungi on driftwood logs on the shores of the Baltic Sea 

      Kunttu, Panu; Pasanen, Hannes; Rämä, Teppo; Kulju, Matti; Kunttu, Sanna-Mari; Kotiranta, Heikki (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-04-26)
      Driftwood is woody debris that is floating on the sea or brought onto the shore by the sea. It can have a natural origin but often it originates from human activities. Driftwood has a significant ecological role as a microhabitat for a large range of species. Dead-wood-associated aphyllophoroid fungi on driftwood have been studied rather little globally, and there are hardly any studies conducted ...
    • Diversity of marine wood-inhabiting fungi in North Norway 

      Rämä, Teppo (Doctoral thesis; Doktorgradsavhandling, 2014-05-27)
      Marine fungi in arctic waters have rarely been studied. The main aim of this thesis was to explore the diversity of driftwood inhabiting fungal communities in the cold waters of North Norway. In order to gain as comprehensive view as possible, different methodological approaches were applied on the same study substrates, and the recovered fungal communities were analysed for taxonomic, phylogenetic ...
    • Fungal Planet description sheets: 1383–1435 

      Crous, Pedro W.; Ganzert, Lars; Rämä, Teppo; Groenewald, Johannes Z.; Boers, J.; Holdom, D.; Osieck, E.R.; Steinrucken, T.V.; Tan, Y.P.; Vitelli, J.S.; Shivas, R.G.; Barrett, M.; Boxshall, A.G.; Broadbridge, J.; Larsson, E.; Lebel, T.; Pinruan, U.; Sommai, S.; Alvarado, P.; Bonito, G.; Decock, C.A.; De la Peña-Lastra, S.; Delgado, G.; Houbraken, J.; Maciá-Vicente, J.G.; Raja, H.A.; Rigueiro-Rodríguez, A.; Rodríguez, A.; Wingfield, M.J.; Adams, S.J.; Akulov, A.; AL-Hidmi, T.; Antonín, V.; Arauzo, S.; Arenas, F.; Armada, F.; Aylward, J.; Bellanger, J-M.; Berraf-Tebbal, A.; Bidaud, A.; Boccardo, F.; Cabero, J.; Calledda, F.; Corriol, G.; Crane, J.L.; Dearnaley, J.D.W.; Dima, B.; Dovana, F.; Eichmeier, A.; Esteve-Raventós3, F.; Fine, M.; Ganzert, L.; García, D.; Torres-Garcia, D.; Gené, J.; Gutiérrez, A.; Iglesias, P.; Istel, Ł.; Jangsantear, P.; Jansen, G.M.; Jeppson, M.; Karun, N.C.; Karich, A.; Khamsuntorn, P.; Kokkonen, K.; Kolařík, M.; Kubátová, A.; Labuda, R.; Lagashetti, A.C.; Lifshitz, N.; Linde, C.; Loizides, M.; Luangsa-ard, J.J.; Lueangjaroenkit, P.; Mahadevakumar, S.; Mahamedi, A.E.; Malloch, D.W.; Marincowitz, S.; Mateos, A.; Moreau, P.-A.; Miller, A.N.; Molia, A.; Morte, A.; Navarro-Ródenas, A.; Nebesářová, J.; Nigrone, E.; Nuthan, B.R.; Oberlies, N.H.; Pepori, A.L.; Rapley, D.; Reschke, K.; Robicheau, B.M.; Roets, F.; Roux, J.; Saavedra, M.; Sakolrak, B.; Santini, A.; Ševčíková, H.; Singh, P.N.; Singh, S.K.; Somrithipol, S.; Spetik, M.; Sridhar, K.R.; Starink-Willemse, M.; Taylor, V.A.; van Iperen, A.L.; Vauras, J.; Walker, A.K.; Wingfield, B.D.; Yarden, O.; Cooke, A.W.; Manners, A.G.; Pegg, K.G. (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-07-12)
      Novel species of fungi described in this study include those from various countries as follows: Australia, Agaricus albofoetidus, Agaricus aureoelephanti and Agaricus parviumbrus on soil, Fusarium ramsdenii from stem cankers of Araucaria cunninghamii, Keissleriella sporoboli from stem of Sporobolus natalensis, Leptosphaerulina queenslandica and Pestalotiopsis chiaroscuro from leaves of Sporobolus ...
    • Fungal Planet description sheets: 868–950 

      Crous, Pedro W.; Carnegie, A.J.; Wingfield, MJ; Sharma, R.; Mughini, G.; Noordeloos, Machiel E.; Santini, A; Shouche, YS; Bezerra, JDP; Dima, B*; Guarnaccia, V; Imrefi, I; Jurjevic, Z; Knapp, DG; Kovács, Gabor G.; Magistà, D; Perrone, G; Rämä, Teppo; Rebriev, Y.A.; Shivas, R.G.; Singh, S.M.; Souza-Motta, C.M.; Thangavel, R.; Adhapure, N.N.; Alexandrova, A.V.; Alfenas, A.C.; Alfenas, R.F.; Alvarado, P.; Alves, A.L.; Andrade, D.A.; Andrade, J.P.; Barbosa, R.N.; Barili, A.; Barnes, C.W.; Baseia, I.G.; Bellanger, J.-M.; Berlanas, C.; Bessette, A.E.; Bessette, A.R.; Biketova, A.Yu.; Bomfim, F.S.; Brandrud, T.E.; Bransgrove, K.; Brito, A.C.Q.; Cano- Lira, J.F.; Cantillo, T.; Cavalcanti, A.D.; Cheewangkoon, R.; Chikowski, R.S.; Conforto, C.; Cordeiro, T.R.L.; Craine, J.D.; Cruz, R.; Damm, U.; de Oliveira, R.J.V.; de Souza, J.T.; de Souza, H.G.; Dearnaley, J.D.W.; Dimitrov, R.A.; Dovana, F.; Erhard, A.; Esteve- Raventós, F.; Félix, C.R.; Ferisin, G.; Fernandes, R.A.; Ferreira, R.J.; Ferro, L.O.; Figueiredo, C.N.; Frank, J.L.; Freire, K.T.L.S.; García, D.; Gené, J.; Gęsiorska, A.; Gibertoni, T.B.; Gondra, R.A.G.; Gouliamova, D.E.; Gramaje, D.; Guard, F.; Gusmão, L.F.P.; Haitook, S.; Hirooka, Y.; Houbraken, J.; Hubka, V.; Inamdar, A.; Iturriaga, T.; Iturrieta-González, I.; Jadan, M.; Jiang, N.; Justo, A.; Kachalkin, A.V.; Kapitonov, V.I.; Karadelev, M.; Karakehian, J.; Kasuya, T.; Kautmanová, I.; Kruse, J.; Kušan, I.; Kuznetsova, T.A.; Landell, M.F.; Larsson, K.-H.; Lee, H.B.; Lima, D.X.; Lira, C.R.S.; Machado, A.R.; Madrid, H.; Magalhães, O.M.C.; Majerova, H.; Malysheva, E.F.; Mapperson, R.R.; Marbach, P.A.S.; Martin, M.P.; Martín-Sanz, A.; Matočec, N.; McTaggart, A.R.; Mello, J.F.; Melo, R.F.R.; Mešić, A.; Michereff, S.J.; Miller, A.N.; Minoshima, A.; Molinero-Ruiz, L.; Morozova, O.V.; Mosoh, D.; Nabe, M.; Naik, R.; Nara, K.; Nascimento, S.S.; Neves, R.P.; Olariaga, I.; Oliveira, R.L.; Oliveira, T.G.L.; Ono, T.; Ordoñez, M.E.; Ottoni, A. de M.; Paiva, L.M.; Pancorbo, F.; Pant, B.; Pawłowska, J.; Peterson, S.W.; Raudabaugh, D.B.; Rodríguez-Andrade, E.; Rubio, E.; Rusevska, K.; Santiago, A.L.C.M.A.; Santos, A.C.S.; Santos, C.; Sazanova, N.A.; Shah, S.; Sharma, J.; Silva, B.D.B.; Siqiuer, J.L.; Sonawane, M.S.; Stchigel, A.M.; Svetasheva, T.; Tamakeaw, N.; Telleria, M.T.; Tiago, P.V.; Tian, C.M.; Tkalčec, Z.; Tomashevskaya, M.A.; Truong, H.H.; Vecherskii, M.V.; Visagie, C.M.; Vizzini, A.; Yilmaz, N.; Zmitrovich, I.V.; Zvyagina, E.A.; Boekhout, T.; Kehlet, T.; Læssøe, T.; Groenewald, J.Z. (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-07)
      Novel species of fungi described in this study include those from various countries as follows: <b>Australia</b>, <i>Chaetomella pseudocircinoseta</i> and <i>Coniella pseudodiospyri</i> on <i>Eucalyptus microcorys</i> leaves, <i>Cladophialophora eucalypti</i>, <i>Teratosphaeria dunnii</i> and <i>Vermiculariopsiella dunnii</i> on <i>Eucalyptus dunnii</i> leaves, <i>Cylindrium grande</i> and <i>Hypsotheca ...
    • Fungi ahoy! Diversity on marine wooden substrata in the high North 

      Rämä, Teppo; Nordén, Jenni; Davey, Marie; Mathiassen, Geir Harald; Spatafora, Joseph W.; Kauserud, Håvard (Journal article; Tidsskriftartikkel; Peer reviewed, 2014)
    • Genomic characterization of three marine fungi, including Emericellopsis atlantica sp. nov. with signatures of a generalist lifestyle and marine biomass degradation 

      Hagestad, Ole Christian; Hou, Lingwei; Andersen, Jeanette Hammer; Hansen, Espen; Altermark, Bjørn; Li, Chun; Kuhnert, Eric; Cox, Russell J.; Crous, Pedro W.; Spatafora, Joseph W.; Lail, Kathleen; Amirebrahimi, Mojgan; Lipzen, Anna; Pangilinan, Jasmyn; Andreopoulos, William; Hayes, Richard H.; Ng, Vivian; Grigoriev, Igor V.; Jackson, Stephen A.; Sutton, Thomas D. S.; Dobson, Alan D. W.; Rämä, Teppo (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-08-09)
      Marine fungi remain poorly covered in global genome sequencing campaigns; the 1000 fungal genomes (1KFG) project attempts to shed light on the diversity, ecology and potential industrial use of overlooked and poorly resolved fungal taxa. This study characterizes the genomes of three marine fungi: <i>Emericellopsis</i> sp. TS7, wood-associated <i>Amylocarpus encephaloides</i> and algae-associated ...
    • Global consortium for the classification of fungi and fungal-like taxa 

      Hyde, Kevin D.; Abdel-Wahab, Mohamed A.; + 386 authors, +; Rämä, Teppo; + 167 authors, . (Journal article; Tidsskriftartikkel, 2023-12-12)
      The Global Consortium for the Classification of Fungi and fungus-like taxa is an international initiative of more than 550 mycologists to develop an electronic structure for the classification of these organisms. The members of the Consortium originate from 55 countries/regions worldwide, from a wide range of disciplines, and include senior, mid-career and early-career mycologists and plant pathologists. ...
    • Hundreds of species observations and four ascomycetes new to Norway during a mycology field course 

      Rämä, Teppo (Journal article; Tidsskriftartikkel; Peer reviewed, 2018)
      During a mycology field course in Drøbak 29th August – 2nd September 2011 several interesting and some new taxa to Norway were found. Species not previously recorded in Norway include <i>Tatraea dumbirensis, Corollospora maritima, Nectriopsis candicans</i> and <i>Ombrophila juniperinella</i>. A list of 413 taxa, including records of three threatened species, is given and the ecology and distribution ...
    • Improving Fungal Cultivability for Natural Products Discovery 

      Rämä, Teppo; Quandt, C. Alisha (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-09-16)
      The pool of fungal secondary metabolites can be extended by activating silent gene clusters of cultured strains or by using sensitive biological assays that detect metabolites missed by analytical methods. Alternatively, or in parallel with the first approach, one can increase the diversity of existing culture collections to improve the access to new natural products. This review focuses on the ...
    • Lophium elegans (Ascomycota), a rare European species 

      Mathiassen, Geir Harald; Granmo, Alfred; Rämä, Teppo (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-01-08)
    • Lulworthinone, a New Dimeric Naphthopyrone From a Marine Fungus in the Family Lulworthiaceae With Antibacterial Activity Against Clinical Methicillin-Resistant Staphylococcus aureus Isolates 

      Jenssen, Marte; Rainsford, Philip; Juskewitz, Eric; Andersen, Jeanette Hammer; Hansen, Espen; Isaksson, Johan; Rämä, Teppo; Østnes Hansen, Kine (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-10-01)
      The emergence of drug-resistant bacteria is increasing rapidly in all parts of the world, and the need for new antibiotics is urgent. In our continuous search for new antimicrobial molecules from under-investigated Arctic marine microorganisms, a marine fungus belonging to the family Lulworthiaceae (Lulworthiales, Sordariomycetes, and Ascomycota) was studied. The fungus was isolated from driftwood, ...
    • Morphological update on Calycina marina (Pezizellaceae, Helotiales, Leotiomycetes), a new combination for Laetinaevia marina 

      Baral, Hans-Otto; Rämä, Teppo (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-11-05)
      Laetinaevia marina is a frequent ascomycetous fungus that is widely distributed on the seashores of Scandinavia and Great Britain. It grows on fronds of Fucales (Phaeophyceae) that are washed ashore and lie decaying at the high tide mark or further up on the beach. It is one of the few described marine discomycetes. In the current generic concept it is regarded as a member of Naevioideae ...
    • The Neglected Marine Fungi, Sensu stricto, and Their Isolation for Natural Products’ Discovery 

      Overy, David P.; Rämä, Teppo; Oosterhuis, Rylee; Walker, Allison K.; Pang, Ka-Lai (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-01-10)
      Despite the rapid development of molecular techniques relevant for natural product research, culture isolates remain the primary source from which natural products chemists discover and obtain new molecules from microbial sources. Techniques for obtaining and identifying microbial isolates (such as filamentous fungi) are thus of crucial importance for a successful natural products’ discovery program. ...