Teppo Rämä
YOU?
Author Swipe
View article: Marine-derived Acremonium strain prioritization using untargeted metabolomics approach for the identification of cytotoxic cyclic depsipeptides
Marine-derived Acremonium strain prioritization using untargeted metabolomics approach for the identification of cytotoxic cyclic depsipeptides Open
Background The Arctic environment, characterized by extreme conditions, hosts a largely untapped reservoir of fungal communities that have adapted to these harsh conditions by producing specialized bioactive secondary metabolites. Among th…
View article: Biodiversity and Biological Interactions of Actinobacteria Associated with Deep Sea and Intertidal Marine Invertebrates
Biodiversity and Biological Interactions of Actinobacteria Associated with Deep Sea and Intertidal Marine Invertebrates Open
Studying marine Actinobacteria across ecological niches is essential for discovering novel natural products and understanding microbial interactions. In this study, we investigated the diversity of Actinobacteria associated with five Arcti…
View article: Metabolomics-Guided Discovery of Bipolarolides H–O, New Ophiobolin-Type Sesterterpenes with Antibacterial Activity from the Marine-Derived Fungus <i>Uzbekistanica storfjordensis</i> sp. nov.
Metabolomics-Guided Discovery of Bipolarolides H–O, New Ophiobolin-Type Sesterterpenes with Antibacterial Activity from the Marine-Derived Fungus <i>Uzbekistanica storfjordensis</i> sp. nov. Open
A marine-derived Pleosporales fungus, Uzbekistanica storfjordensis, was isolated from driftwood and described as a new species. The fungus was cultivated in liquid media and a molecular networking-driven approach was used to identif…
View article: Towards an integrative morpho-molecular classification of the Lulworthiomycetidae
Towards an integrative morpho-molecular classification of the Lulworthiomycetidae Open
This study re-evaluates the classification of the Lulworthiomycetidae based on phylogenetic analyses of 18S, 28S and ITS (internal transcribed spacers and 5.8S) regions of rDNA and protein coding genes (TEF1α, RPB1, RPB2, TUB2, MCM7) along…
View article: Bioprospecting of inhibitors of EPEC virulence from metabolites of marine actinobacteria from the Arctic Sea
Bioprospecting of inhibitors of EPEC virulence from metabolites of marine actinobacteria from the Arctic Sea Open
A considerable number of antibacterial agents are derived from bacterial metabolites. Similarly, numerous known compounds that impede bacterial virulence stem from bacterial metabolites. Enteropathogenic Escherichia coli (EPEC) is a notabl…
View article: Development of gp64 Gene based Real-time Quantitative PCR Assay for Rapid and Accurate Determination of Baculovirus Titer
Development of gp64 Gene based Real-time Quantitative PCR Assay for Rapid and Accurate Determination of Baculovirus Titer Open
The present study was conducted to develop a simple and rapid quantitative real-time PCR (qPCR) assay for determination of baculovirus titer.Recombinant baculovirus expressing CE1E2 structural proteins of classical swine fever virus (CSFV)…
View article: Discovery and structural assignment of (S)-sydosine from amphipod-derived <i>Aspergillus sydowii</i> MBC15-11F through HRMS, advanced Mosher, and molecular modelling analyses
Discovery and structural assignment of (S)-sydosine from amphipod-derived <i>Aspergillus sydowii</i> MBC15-11F through HRMS, advanced Mosher, and molecular modelling analyses Open
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 configurati…
View article: Recent progress in marine mycological research in different countries, and prospects for future developments worldwide
Recent progress in marine mycological research in different countries, and prospects for future developments worldwide Open
Early research on marine fungi was mostly descriptive, with an emphasis on their diversity and taxonomy, especially of those collected at rocky shores on seaweeds and driftwood. Subsequently, further substrata (e.g. salt marsh grasses, mar…
View article: Redisposition of acremonium-like fungi in <i> Hypocreales</i>
Redisposition of acremonium-like fungi in <i> Hypocreales</i> Open
Acremonium is acknowledged as a highly ubiquitous genus including saprobic, parasitic, or endophytic fungi that inhabit a variety of environments. Species of this genus are extensively exploited in industrial, commercial, pharmaceutical, a…
View article: Fungal Planet description sheets: 1383-1435.
Fungal Planet description sheets: 1383-1435. Open
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…
View article: Fungal Planet description sheets: 1383–1435
Fungal Planet description sheets: 1383–1435 Open
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…
View article: Chlovalicin B, a Chlorinated Sesquiterpene Isolated from the Marine Mushroom Digitatispora marina
Chlovalicin B, a Chlorinated Sesquiterpene Isolated from the Marine Mushroom Digitatispora marina Open
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 collect…
View article: Lulworthinone, a New Dimeric Naphthopyrone From a Marine Fungus in the Family Lulworthiaceae With Antibacterial Activity Against Clinical Methicillin-Resistant Staphylococcus aureus Isolates
Lulworthinone, a New Dimeric Naphthopyrone From a Marine Fungus in the Family Lulworthiaceae With Antibacterial Activity Against Clinical Methicillin-Resistant Staphylococcus aureus Isolates Open
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 microorgan…
View article: Improving Fungal Cultivability for Natural Products Discovery
Improving Fungal Cultivability for Natural Products Discovery Open
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 wit…
View article: Two Novel Lyso-Ornithine Lipids Isolated from an Arctic Marine Lacinutrix sp. Bacterium
Two Novel Lyso-Ornithine Lipids Isolated from an Arctic Marine Lacinutrix sp. Bacterium Open
The Lacinutrix genus was discovered in 2005 and includes 12 Gram-negative bacterial species. To the best of our knowledge, the secondary metabolite production potential of this genus has not been explored before, and examination of Lacinut…
View article: Genomic characterization of three marine fungi, including Emericellopsis atlantica sp. nov. with signatures of a generalist lifestyle and marine biomass degradation
Genomic characterization of three marine fungi, including Emericellopsis atlantica sp. nov. with signatures of a generalist lifestyle and marine biomass degradation Open
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. T…
View article: <i>Psoroma capense</i>and<i>P. esterhuyseniae</i>(<i>Pannariaceae</i>), two new alpine species from South Africa
<i>Psoroma capense</i>and<i>P. esterhuyseniae</i>(<i>Pannariaceae</i>), two new alpine species from South Africa Open
The new species Psoroma capense and P. esterhuyseniae are described from four alpine localities in the Western Cape Province of South Africa and are the only known Psoroma species from Africa. The specimens were all collected from moist si…
View article: Diversity and ecology of aphyllophoroid fungi on driftwood logs on the shores of the Baltic Sea
Diversity and ecology of aphyllophoroid fungi on driftwood logs on the shores of the Baltic Sea Open
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 lar…
View article: Cultivable marine fungi from the Arctic Archipelago of Svalbard and their antibacterial activity
Cultivable marine fungi from the Arctic Archipelago of Svalbard and their antibacterial activity Open
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 Hig…
View article: Fungal Planet description sheets: 868–950
Fungal Planet description sheets: 868–950 Open
Novel species of fungi described in this study include those from various countries as follows: Australia , Chaetomella pseudocircinoseta and Coniella pseudodiospyri on Eucalyptus microcorys leaves, Cladophialophora eucalypti , Teratosphae…
View article: Arctic marine fungi: biomass, functional genes, and putative ecological roles
Arctic marine fungi: biomass, functional genes, and putative ecological roles Open
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 t…
View article: The Neglected Marine Fungi, Sensu stricto, and Their Isolation for Natural Products’ Discovery
The Neglected Marine Fungi, Sensu stricto, and Their Isolation for Natural Products’ Discovery Open
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. Techniqu…
View article: Cultivable marine fungi from the Arctic Archipelago of Svalbard and their antibacterial activity
Cultivable marine fungi from the Arctic Archipelago of Svalbard and their antibacterial activity Open
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 Hig…
View article: Characterization of Rhamnolipids Produced by an Arctic Marine Bacterium from the Pseudomonas fluorescence Group
Characterization of Rhamnolipids Produced by an Arctic Marine Bacterium from the Pseudomonas fluorescence Group Open
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 p…
View article: Hundreds of species observations and four ascomycetes new to Norway during a mycology field course
Hundreds of species observations and four ascomycetes new to Norway during a mycology field course Open
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 Tatraea dumbirensis, Corollospora maritima, Nectriop…
View article: Cryptomyces maximus rediscovered in Finland after 99 years
Cryptomyces maximus rediscovered in Finland after 99 years Open
Cryptomyces maximus is a conspicuous ascomycete, which is easy to identify due to its characteristic ecology and morphological appearance.The fungus was found in three locations in the northwesternmost part of the country, 99 years after t…
View article: Morphological update on <i>Calycina marina</i> (Pezizellaceae, Helotiales, Leotiomycetes), a new combination for <i>Laetinaevia marina</i>
Morphological update on <i>Calycina marina</i> (Pezizellaceae, Helotiales, Leotiomycetes), a new combination for <i>Laetinaevia marina</i> Open
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 o…
View article: <i>Lophium elegans</i> (<i>Ascomycota</i>), a rare European species
<i>Lophium elegans</i> (<i>Ascomycota</i>), a rare European species Open
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. …