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      Draft Genome Sequence of Bacillus subtilis AS2, a Heavy Crude Oil-Degrading and Biosurfactant-Producing Bacterium Isolated from a Soil Sample

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          ABSTRACT

          Here, we report the draft genome sequence of Bacillus subtilis AS2 that was isolated from heavy crude oil-contaminated soil samples from sludge pits of an Omani heavy-oil field. B. subtilis AS2 was able to biodegrade heavy crude oil and produce biosurfactant. In order to provide a better understanding of the biodegradation mechanism and biosynthesis of metabolites, the B. subtilis AS2 genome was sequenced and compared to those of other B. subtilis strains.

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          Bacterial metabolism of long-chain n-alkanes.

          Degradation of alkanes is a widespread phenomenon in nature, and numerous microorganisms, both prokaryotic and eukaryotic, capable of utilizing these substrates as a carbon and energy source have been isolated and characterized. In this review, we summarize recent advances in the understanding of bacterial metabolism of long-chain n-alkanes. Bacterial strategies for accessing these highly hydrophobic substrates are presented, along with systems for their enzymatic degradation and conversion into products of potential industrial value. We further summarize the current knowledge on the regulation of bacterial long-chain n-alkane metabolism and survey progress in understanding bacterial pathways for utilization of n-alkanes under anaerobic conditions.
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            Whole-genome sequences of Bacillus subtilis and close relatives.

            We sequenced four strains of Bacillus subtilis and the type strains for two closely related species, Bacillus vallismortis and Bacillus mojavensis. We report the high-quality Sanger genome sequences of B. subtilis subspecies subtilis RO-NN-1 and AUSI98, B. subtilis subspecies spizizenii TU-B-10(T) and DV1-B-1, Bacillus mojavensis RO-H-1(T), and Bacillus vallismortis DV1-F-3(T).
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              Characterization and optimization of Bacillus subtilis ATCC 6051 as an expression host.

              The genome sequence of Bacillus subtilis ATCC 6051 and its suitability as an expression host for recombinant protein production was determined. The comparison of this undomesticated wild type with the widely used laboratory strain B. subtilis 168 reveals a high degree of congruency between the two strains. Differences could only be detected on the level of point mutations or small insertions. B. subtilis ATCC 6051 shows none of the auxotrophies known for B. subtilis 168 and is able to produce polyketides. It exhibits better use of complex media and higher genomic stability through reduced natural competence. Consequently, B. subtilis ATCC 6051 was genetically modified to yield an optimized strain for the production of heterologously expressed proteins under control of an acetoin-inducible promoter. Copyright © 2012 Elsevier B.V. All rights reserved.
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                Author and article information

                Journal
                Genome Announc
                Genome Announc
                ga
                ga
                GA
                Genome Announcements
                American Society for Microbiology (1752 N St., N.W., Washington, DC )
                2169-8287
                28 September 2017
                September 2017
                : 5
                : 39
                : e00969-17
                Affiliations
                [a ]Department of Petroleum and Chemical Engineering, College of Engineering, Sultan Qaboos University, Muscat, Oman
                [b ]Central Analytical and Applied Research Unit, College of Science, Sultan Qaboos University, Muscat, Oman
                [c ]Department of Biology, College of Science, Sultan Qaboos University, Muscat, Oman
                Author notes
                Address correspondence to Yahya Al-Wahaibi, ymn@ 123456squ.edu.om .
                Article
                genomeA00969-17
                10.1128/genomeA.00969-17
                5624754
                28963208
                2efa543b-9b31-42f1-a70f-1a9275195532
                Copyright © 2017 Al-Sayegh et al.

                This is an open-access article distributed under the terms of the Creative Commons Attribution 4.0 International license.

                History
                : 9 August 2017
                : 10 August 2017
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 10, Pages: 2, Words: 1357
                Categories
                Prokaryotes
                Custom metadata
                September 2017

                Genetics
                Genetics

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