{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,29]],"date-time":"2026-03-29T20:23:00Z","timestamp":1774815780574,"version":"3.50.1"},"reference-count":36,"publisher":"MDPI AG","issue":"8","license":[{"start":{"date-parts":[[2018,8,20]],"date-time":"2018-08-20T00:00:00Z","timestamp":1534723200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001871","name":"Funda\u00e7\u00e3o para a Ci\u00eancia e a Tecnologia","doi-asserted-by":"publisher","award":["PTDC\/MAR-BIO\/4694\/2014"],"award-info":[{"award-number":["PTDC\/MAR-BIO\/4694\/2014"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]},{"name":"North Portugal Regional Operational Programme (NORTE 2020","award":["NORTE-01-0145-FEDER-000035"],"award-info":[{"award-number":["NORTE-01-0145-FEDER-000035"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Marine Drugs"],"abstract":"<jats:p>A previously unreported chromene derivative, 1-hydroxy-12-methoxycitromycin (1c), and four previously undescribed chromone derivatives, including pyanochromone (3b), spirofuranochromone (4), 7-hydroxy-6-methoxy-4-oxo-3-[(1E)-3-oxobut-1-en-1-yl]-4H-chromene-5-carboxylic acid (5), a pyranochromone dimer (6) were isolated, together with thirteen known compounds: \u03b2-sitostenone, ergosterol 5,8-endoperoxide, citromycin (1a), 12-methoxycitromycin (1b), myxotrichin D (1d), 12-methoxycitromycetin (1e), anhydrofulvic acid (2a), myxotrichin C (2b), penialidin D (2c), penialidin F (3a), SPF-3059-30 (7), GKK1032B (8) and secalonic acid A (9), from cultures of the marine sponge- associated fungus Penicillium erubescens KUFA0220. Compounds 1a\u2013e, 2a, 3a, 4, 7\u20139, were tested for their antibacterial activity against Gram-positive and Gram-negative reference and multidrug-resistant strains isolated from the environment. Only 8 exhibited an in vitro growth inhibition of all Gram-positive bacteria whereas 9 showed growth inhibition of methicillin-resistant Staphyllococus aureus (MRSA). None of the compounds were active against Gram-negative bacteria tested.<\/jats:p>","DOI":"10.3390\/md16080289","type":"journal-article","created":{"date-parts":[[2018,8,20]],"date-time":"2018-08-20T11:23:06Z","timestamp":1534764186000},"page":"289","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":28,"title":["Chromone Derivatives and Other Constituents from Cultures of the Marine Sponge-Associated Fungus Penicillium erubescens KUFA0220 and Their Antibacterial Activity"],"prefix":"10.3390","volume":"16","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-1434-3958","authenticated-orcid":false,"given":"Decha","family":"Kumla","sequence":"first","affiliation":[{"name":"<i>ICBAS<\/i>\u2014Instituto de Ci\u00eancias Biom\u00e9dicas Abel Salazar, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal"},{"name":"Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), Universidade do Porto, Terminal de Cruzeiros do Porto de Lex\u00f5es, Av. General Norton de Matos s\/n, 4450-208 Matosinhos, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2604-2375","authenticated-orcid":false,"given":"Jos\u00e9 A.","family":"Pereira","sequence":"additional","affiliation":[{"name":"<i>ICBAS<\/i>\u2014Instituto de Ci\u00eancias Biom\u00e9dicas Abel Salazar, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal"},{"name":"Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), Universidade do Porto, Terminal de Cruzeiros do Porto de Lex\u00f5es, Av. General Norton de Matos s\/n, 4450-208 Matosinhos, Portugal"}]},{"given":"Tida","family":"Dethoup","sequence":"additional","affiliation":[{"name":"Department of Plant Pathology, Faculty of Agriculture, Kasetsart University, Bangkok 10240, Thailand"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8352-6539","authenticated-orcid":false,"given":"Luis","family":"Gales","sequence":"additional","affiliation":[{"name":"<i>ICBAS<\/i>\u2014Instituto de Ci\u00eancias Biom\u00e9dicas Abel Salazar, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal"},{"name":"Instituto de Biologia Molecular e Celular (i3S-IBMC), Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0235-4991","authenticated-orcid":false,"given":"Joana","family":"Freitas-Silva","sequence":"additional","affiliation":[{"name":"<i>ICBAS<\/i>\u2014Instituto de Ci\u00eancias Biom\u00e9dicas Abel Salazar, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal"},{"name":"Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), Universidade do Porto, Terminal de Cruzeiros do Porto de Lex\u00f5es, Av. General Norton de Matos s\/n, 4450-208 Matosinhos, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6115-8811","authenticated-orcid":false,"given":"Paulo M.","family":"Costa","sequence":"additional","affiliation":[{"name":"<i>ICBAS<\/i>\u2014Instituto de Ci\u00eancias Biom\u00e9dicas Abel Salazar, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal"},{"name":"Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), Universidade do Porto, Terminal de Cruzeiros do Porto de Lex\u00f5es, Av. General Norton de Matos s\/n, 4450-208 Matosinhos, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0249-3825","authenticated-orcid":false,"given":"Michael","family":"Lee","sequence":"additional","affiliation":[{"name":"Department of Chemistry, University of Leicester, University Road, Leicester LE 7 RH, UK"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2861-8286","authenticated-orcid":false,"given":"Artur M. S.","family":"Silva","sequence":"additional","affiliation":[{"name":"Departamento de Qu\u00edmica &amp; QOPNA, Universidade de Aveiro, 3810-193 Aveiro, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0630-0106","authenticated-orcid":false,"given":"Nazim","family":"Sekeroglu","sequence":"additional","affiliation":[{"name":"Department of Food Engineering, Faculty of Engineering and Architecture, Kilis 7 Aral\u0131k University, 79000 Kilis, Turkey"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4676-1409","authenticated-orcid":false,"given":"Madalena M. M.","family":"Pinto","sequence":"additional","affiliation":[{"name":"Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), Universidade do Porto, Terminal de Cruzeiros do Porto de Lex\u00f5es, Av. General Norton de Matos s\/n, 4450-208 Matosinhos, Portugal"},{"name":"Laborat\u00f3rio de Qu\u00edmica Org\u00e2nica, Departamento de Ci\u00eancias Qu\u00edmicas, Faculdade de Farm\u00e1cia, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3321-1061","authenticated-orcid":false,"given":"Anake","family":"Kijjoa","sequence":"additional","affiliation":[{"name":"<i>ICBAS<\/i>\u2014Instituto de Ci\u00eancias Biom\u00e9dicas Abel Salazar, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal"},{"name":"Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), Universidade do Porto, Terminal de Cruzeiros do Porto de Lex\u00f5es, Av. 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