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Penicillium nalgiov...
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Svahn, Stefan,1977-Uppsala universitet,Avdelningen för farmakognosi,Uppsala Universitet
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Penicillium nalgiovense Laxa isolated from Antarctica is a new source of the antifungal metabolite amphotericin B
- Article/chapterEnglish2015
Publisher, publication year, extent ...
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2015-01-17
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Springer Science and Business Media LLC,2015
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LIBRIS-ID:oai:DiVA.org:uu-242609
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https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-242609URI
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https://doi.org/10.1186/s40694-014-0011-xDOI
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http://kipublications.ki.se/Default.aspx?queryparsed=id:228955453URI
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Language:English
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Summary in:English
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
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Background: The need for new antibiotic drugs increases as pathogenic microorganisms continue to develop resistance against current antibiotics. We obtained samples from Antarctica as part of a search for new antimicrobial metabolites derived from filamentous fungi. This terrestrial environment in the South Pole is hostile and extreme due to a sparsely populated food web, low temperatures, and insufficient liquid water availability. We hypothesize that this environment could cause the development of fungal defense or survival mechanisms not found elsewhere.Results: We isolated a strain of Penicillium nalgiovense Laxa from a soil sample obtained from an abandoned penguin’s nest. Amphotericin B was the only metabolite secreted from P. nalgiovense Laxa with noticeable antimicrobial activity,with minimum inhibitory concentration of 0.125 µg/mL against Candida albicans. This is the first time that amphotericin B has been isolated from an organism other than the bacterium Streptomyces nodosus. In terms of amphotericin B production, cultures on solid medium proved to be a more reliable and favorable choice compared to a liquid.Conclusions: These results encourage further investigation of the many unexplored sampling sites characterized by extreme conditions, and confirm filamentous fungi as potential sources of metabolites with antimicrobial activity.
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Chryssanthou, ErjaKarolinska Institutet
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Olsen, Björn
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Bohlin, LarsUppsala universitet,Avdelningen för farmakognosi(Swepub:uu)larsbohl
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Göransson, UlfUppsala universitet,Avdelningen för farmakognosi(Swepub:uu)ugo29049
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Uppsala universitetAvdelningen för farmakognosi
(creator_code:org_t)
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In:Fungal biology and biothechnology: Springer Science and Business Media LLC2:12054-3085
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