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      Genome Sequence of Martelella sp. Strain AD-3, a Moderately Halophilic Polycyclic Aromatic Hydrocarbon-Degrading Bacterium

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          Abstract

          Martelella sp. strain AD-3, enriched from a petroleum-contaminated site with high salinity, can efficiently degrade polycyclic aromatic hydrocarbons. Here, we report the 4.75-Mb genome sequence of strain AD-3 with its genetic feature of helping to remediate environmental organic pollutants.

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          Progress in decontamination by halophilic microorganisms in saline wastewater and soil.

          Xuliang Zhuang, Zhen Hai Han, Zhihui Bai … (2010)
          Environments with high-salt concentrations are often populated by dense microbial communities. Halophilic microorganisms can be isolated from different saline environments and different strains even belonging to the same genus have various applications. Wastewater and soil rich in both organic matter and salt are difficult to treat using conventional microorganisms typically found in wastewater treatment and soil bioremediation facilities. Studies on decontaminative capabilities and decontamination pathways of organic contaminants (i.e., aromatic compounds benzoate, cinnamate, 3-phenylpropionate, 4-hydroxybenzoic acid), heavy metals (i.e., tellurium, vanadium), and nutrients in the biological treatment of saline wastewater and soil by halophilic microorganisms are discussed in this review. Copyright 2010 Elsevier Ltd. All rights reserved.
          Article 0 comments Cited 34 times – based on 0 reviews     Review now
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            Phenanthrene biodegradation by halophilic Martelella sp. AD-3.

            T Feng, Y. Feng, Fang Liu … (2012)
            To investigate the phenanthrene-degrading abilities of the halophilic Martelella species AD-3 under different conditions and to propose a possible metabolic pathway. Using HPLC and GC-MS analyses, the phenanthrene-degrading properties of the halophilic strain AD-3 and its metabolites were analysed. This isolate efficiently degraded phenanthrene under multiple conditions characterized by different concentrations of phenanthrene (100-400 mg l(-1) ), a broad range of salinities (0·1-15%) and varying pHs (6·0-10·0). Phenanthrene (200 mg l(-1) ) was completely depleted under 3% salinity and a pH of 9·0 within 6 days. The potential toxicity of phenanthrene and its generated metabolites towards the bacterium Vibrio fischeri was significantly reduced 10 days after the bioassay. On the basis of the identified metabolites, enzyme activities and the utilization of probable intermediates, phenanthrene degradation by strain AD-3 was proposed in two distinct routes. In route I, metabolism of phenanthrene was initiated by the dioxygenation at C-3,4 via 1-hydroxy-2-naphthoic acid, 1-naphthol, salicylic acid and gentisic acid. In route II, phenanthrene was metabolized to 9-phenanthrol and 9,10-phenanthrenequinone. Further study indicated that strain AD-3 exhibited a wide spectrum of substrate utilization including other polycyclic aromatic hydrocarbons (PAHs). The results suggest that strain AD-3 possesses a high phenanthrene biodegradability and that the degradation occurs via two routes that remarkably reduce toxicity. To the best of our knowledge, this work presents the first report of phenanthrene degradation by a halophilic PAH-degrading strain via two routes. In the future, the use of halophilic strain AD-3 provides a potential application for efficient PAH-contaminated hypersaline field remediation. © 2012 The Authors Journal of Applied Microbiology © 2012 The Society for Applied Microbiology.
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              Biodegradation of phenol in hypersaline conditions by Halomonas sp. strain PH2-2 isolated from saline soil

              Azam Haddadi, Mahmoud Shavandi (2013)
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                Author and article information

                Journal
                Journal ID (nlm-ta): Genome Announc
                Journal ID (iso-abbrev): Genome Announc
                Journal ID (hwp): ga
                Journal ID (pmc): ga
                Journal ID (publisher-id): GA
                Title: Genome Announcements
                Publisher: American Society for Microbiology (1752 N St., N.W., Washington, DC )
                ISSN (Electronic): 2169-8287
                Publication date (Electronic): 16 January 2014
                Publication date Collection: Jan-Feb 2014
                Volume: 2
                Issue: 1
                Electronic Location Identifier: e01189-13
                Affiliations
                State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, School of Resources and Environmental Engineering, East China University of Science and Technology, Shanghai, China [a ]
                State Key Laboratory of Microbial Metabolism and School of Life Sciences & Biotechnology, Shanghai Jiao Tong University, Shanghai, China [b ]
                State Environmental Protection Engineering Center for Urban Soil Contamination Control and Remediation, Institute of Wastes and Soil Environment, Shanghai Academy of Environmental Science, Shanghai, China [c ]
                School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, China [d ]
                Author notes
                Address correspondence to Hongzhi Tang, tanghongzhi@ 123456sjtu.edu.cn , or Yongdi Liu, ydliu@ 123456ecust.edu.cn .
                Article
                Publisher ID: genomeA01189-13
                DOI: 10.1128/genomeA.01189-13
                PMC ID: 3894287
                PubMed ID: 24435873
                SO-VID: 727457ab-04ef-480e-a685-aeed2d965439
                Copyright © Copyright © 2014 Cui et al.
                License:

                This is an open-access article distributed under the terms of the Creative Commons Attribution 3.0 Unported license.

                History
                Date received : 10 December 2013
                Date accepted : 13 December 2013
                Page count
                Pages: 2
                Categories
                Subject: Prokaryotes
                Custom metadata
                cover-date January/February 2014
                access-type free

                ScienceOpen disciplines: Genetics
                Data availability:
                ScienceOpen disciplines: Genetics

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