{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,27]],"date-time":"2026-08-27T06:01:05Z","timestamp":1787810465342,"version":"build-2784847793"},"reference-count":36,"publisher":"American Society for Microbiology","issue":"8","license":[{"start":{"date-parts":[[2003,8,1]],"date-time":"2003-08-01T00:00:00Z","timestamp":1059696000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.asm.org\/non-commercial-tdm-license"}],"content-domain":{"domain":["journals.asm.org"],"crossmark-restriction":true},"short-container-title":["Appl Environ Microbiol"],"published-print":{"date-parts":[[2003,8]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n          <jats:p>\n            Strains DBVPG 6662 and DBVPG 6739 of\n            <jats:italic>Rhodosporidium toruloides<\/jats:italic>\n            , a basidiomycete yeast, grew on thiosulfate as a sulfur source and glucose (2 g liter\n            <jats:sup>\u22121<\/jats:sup>\n            or 10.75 mM) as a carbon source. DBVPG 6662 has a defective sulfate transport system, whereas DBVPG 6739 barely grew on sulfate. They were compared for the ability to use dibenzothiophene (DBT) and related organic sulfur compounds as sulfur sources. In the presence of glucose as a carbon source and DBT as a sulfur source, strain DBVPG 6662 grew better than DBVPG 6739. In the presence of thiosulfate as a sulfur source, the two yeast strains did not use DBT, DBT-sulfone, benzenesulfonic acid, biphenyl, and fluorene. When the two strains were grown in the presence of glucose, strain DBVPG 6662 transformed 27% of the DBT present (10 \u03bcM) at a rate of 0.023 \u03bcmol liter\n            <jats:sup>\u22121<\/jats:sup>\n            h\n            <jats:sup>\u22121<\/jats:sup>\n            in 36 h. Traces of 2,2\u2032-dihydroxylated biphenyl were transiently accumulated under these conditions. When the same strain was grown on glucose in the presence of a higher concentration of DBT (0.5 g liter\n            <jats:sup>\u22121<\/jats:sup>\n            ), mainly in an insoluble form, the whole surface of the DBT crystals was colonized by a thick mycelium. This adherent structure was imaged by confocal microscopy with fluorescent concanavalin A, a lectin that specifically binds glucose and mannose residues. When DBVPG 6662 was grown on glucose in the presence of a commercial emulsion of bitumen, i.e., orimulsion, 68% of the benzo- and dibenzothiophenes and DBTs was removed after 15 days of incubation. The fungus adhered by hyphae to orimulsion droplets. When cultivated in the presence of commercial emulsifier-free fuel oil containing alkylated benzothiophenes and DBTs and having a composition similar to that of orimulsion, strain DBVPG 6662 removed only 11% of the total organic sulfur that occurs in the medium and did not adhere to the oil droplets. These results indicate that strain DBVPG 6662 is able to utilize the organic sulfur of DBT and a large variety of thiophenic compounds that occur extensively in commercial fuel oils by physically adhering to the organic sulfur source.\n          <\/jats:p>","DOI":"10.1128\/aem.69.8.4689-4696.2003","type":"journal-article","created":{"date-parts":[[2003,8,5]],"date-time":"2003-08-05T22:09:55Z","timestamp":1060121395000},"page":"4689-4696","update-policy":"https:\/\/doi.org\/10.1128\/asmj-crossmark-policy-page","source":"Crossref","is-referenced-by-count":32,"title":["Growth of\n            <i>Rhodosporidium toruloides<\/i>\n            Strain DBVPG 6662 on Dibenzothiophene Crystals and Orimulsion"],"prefix":"10.1128","volume":"69","author":[{"given":"Franco","family":"Baldi","sequence":"first","affiliation":[{"name":"Department of Environmental Sciences, Ca\u0300 Foscari University, S. Marta, Dorsoduro 2137I-30121 Venice"},{"name":"Interuniversity Consortium for Environmental Chemistry, Marghera, I-30175 Venice"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Milva","family":"Pepi","sequence":"additional","affiliation":[{"name":"Interuniversity Consortium for Environmental Chemistry, Marghera, I-30175 Venice"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Fabio","family":"Fava","sequence":"additional","affiliation":[{"name":"DICASM, Faculty of Engineering, University of Bologna, I-40136 Bologna, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"235","reference":[{"key":"e_1_3_2_2_2","unstructured":"J. Biol. 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