Antifouling steroids isolated from red alga epiphyte filamentous bacterium Leucothrix mucor
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Cho, Ji Young | - |
dc.date.accessioned | 2021-08-12T03:26:33Z | - |
dc.date.available | 2021-08-12T03:26:33Z | - |
dc.date.issued | 2012-05 | - |
dc.identifier.issn | 0919-9268 | - |
dc.identifier.issn | 1444-2906 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/sch/handle/2021.sw.sch/15223 | - |
dc.description.abstract | Active antifouling steroids were isolated from the filamentous bacterium . Bioactivity-guided isolation by silica gel column chromatography and high-performance liquid chromatography generated two compounds. The chemical constituents having the antifouling activities were identified as 17-(1,2-dihydroxyl-5-methyl-hexane)-2,3-dihydroxyl-cholest-4-en-6-one [compound (a)] and 13-acetate-17-(1,5-dimethylhexane)-cholest-7-en-3,5,6,15-tetraol [compound (b)] by interpreting one- and two-dimensional nuclear magnetic resonance and mass spectroscopy data. The two compounds were isolated from 780 mg of crude extract, yielding 12 and 14 mg, respectively. Antifouling activities were determined against a representative soft fouling macroalgae (), a biofouling diatom (), and the bacteria KNP-3 and sp. KNS-8. The two compounds were able to inhibit the spore settlement of zoospores with a low half maximal effective concentration (EC50) (1.2-2.1 mu g/ml) and inhibit diatom growth with an EC50 of 5.2-7.5 mu g/ml. Compound (a) showed activity with minimum inhibitory concentration values of 32-56 mu g/ml and compound (b) showed an activity of 66-90 mu g/ml. Among the two compounds, compound (a) is a new compound, whereas compound (b) was previously reported to have been isolated from a marine invertebrate. | - |
dc.format.extent | 7 | - |
dc.language | 영어 | - |
dc.language.iso | ENG | - |
dc.publisher | Blackwell Publishing Inc. | - |
dc.title | Antifouling steroids isolated from red alga epiphyte filamentous bacterium Leucothrix mucor | - |
dc.type | Article | - |
dc.publisher.location | 일본 | - |
dc.identifier.doi | 10.1007/s12562-012-0490-8 | - |
dc.identifier.scopusid | 2-s2.0-84860881462 | - |
dc.identifier.wosid | 000303878800022 | - |
dc.identifier.bibliographicCitation | Fisheries Science, v.78, no.3, pp 683 - 689 | - |
dc.citation.title | Fisheries Science | - |
dc.citation.volume | 78 | - |
dc.citation.number | 3 | - |
dc.citation.startPage | 683 | - |
dc.citation.endPage | 689 | - |
dc.type.docType | Article | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | sci | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Fisheries | - |
dc.relation.journalWebOfScienceCategory | Fisheries | - |
dc.subject.keywordPlus | PAINT BOOSTER BIOCIDES | - |
dc.subject.keywordPlus | MARINE SPONGE | - |
dc.subject.keywordPlus | AQUATIC ENVIRONMENT | - |
dc.subject.keywordPlus | COASTAL WATERS | - |
dc.subject.keywordPlus | METABOLITES | - |
dc.subject.keywordAuthor | 17-(1,2,-Dihydroxyl-5-methyl-hexane)-2,3-dihydroxyl-cholest-4-en-6-one | - |
dc.subject.keywordAuthor | 13-Acetate-17-(1,5-dimethylhexane)-cholest-7-en-3,5,6,15-tetraol | - |
dc.subject.keywordAuthor | Zoospore inhibition | - |
dc.subject.keywordAuthor | Diatom | - |
dc.subject.keywordAuthor | Biofouling bacteria | - |
dc.subject.keywordAuthor | Nuclear magnetic resonance | - |
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