Protection against diesel oil toxicity by sodium chloride-induced exopolysaccharides in Acinetobacter sp. strain DR1

Kang, Yoon Suk; Park, Woojun

doi:10.1016/j.jbiosc.2009.08.001

Cited by 49 publications

(38 citation statements)

References 31 publications

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“…Subsequent alkane metabolisms are likely mediated by alcohol dehydrogenase (encoded by AOLE_06670 and AOLE_09790) and aldehyde dehydrogenase (encoded by AOLE_06655). Expression of alkB during diesel utilization was previously confirmed (20).…”

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confidence: 79%

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Comparative Genomic Analysis of Acinetobacter oleivorans DR1 To Determine Strain-Specific Genomic Regions and Gentisate Biodegradation

Jung

Madsen

Jeon

et al. 2011

Appl Environ Microbiol

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The comparative genomics of Acinetobacter oleivorans DR1 assayed with A. baylyi ADP1, A. calcoaceticus PHEA-2, and A. baumannii ATCC 17978 revealed that the incorporation of phage-related genomic regions and the absence of transposable elements have contributed to the large size (4.15 Mb) of the DR1 genome. A horizontally transferred genomic region and a higher proportion of transcriptional regulator-and signal peptide-coding genes were identified as characteristics of the DR1 genome. Incomplete glucose metabolism, metabolic pathways of aromatic compounds, biofilm formation, antibiotics and metal resistance, and natural competence genes were conserved in four compared genomes. Interestingly, only strain DR1 possesses gentisate 1,2-dioxygenase (nagI) and grows on gentisate, whereas other species cannot. Expression of the nagI gene was upregulated during gentisate utilization, and four downstream open reading frames (ORFs) were cotranscribed, supporting the notion that gentisate metabolism is a unique characteristic of strain DR1. The genomic analysis of strain DR1 provides additional insights into the function, ecology, and evolution of Acinetobacter species.

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confidence: 79%

“…The genetics and physiology of strain DR1 (with respect to activities such as biodegradation of diesel fuel, biofilm formation, natural transformation, quorum sensing, and oxidative stress) have only begun to be investigated (16,19,20,21,30). The availability of the complete genome of strain DR1 (16) provides the opportunity for a comparative study.…”

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confidence: 99%

Comparative Genomic Analysis of Acinetobacter oleivorans DR1 To Determine Strain-Specific Genomic Regions and Gentisate Biodegradation

Jung

Madsen

Jeon

et al. 2011

Appl Environ Microbiol

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“…Although petroleum contaminants can provide growth-supporting energy and carbon to many bacteria, they are toxic in high concentrations, primarily due to negative interactions with cell walls (Ramos et al, 2002;Kang and Park, 2010), and thus require adaptations and resource trade-offs. Microbial communities can also be disrupted by nitrogen inputs, and reductions in respiration, biomass and diversity have been observed following nitrogen addition (Allison et al, 2007;Ramirez et al, 2012).…”

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confidence: 99%

Predictable bacterial composition and hydrocarbon degradation in Arctic soils following diesel and nutrient disturbance

et al. 2013

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Increased exploration and exploitation of resources in the Arctic is leading to a higher risk of petroleum contamination. A number of Arctic microorganisms can use petroleum for growth-supporting carbon and energy, but traditional approaches for stimulating these microorganisms (for example, nutrient addition) have varied in effectiveness between sites. Consistent environmental controls on microbial community response to disturbance from petroleum contaminants and nutrient amendments across Arctic soils have not been identified, nor is it known whether specific taxa are universally associated with efficient bioremediation. In this study, we contaminated 18 Arctic soils with diesel and treated subsamples of each with monoammonium phosphate (MAP), which has successfully stimulated degradation in some contaminated Arctic soils. Bacterial community composition of uncontaminated, diesel-contaminated and diesel+MAP soils was assessed through multiplexed 16S (ribosomal RNA) rRNA gene sequencing on an Ion Torrent Personal Genome Machine, while hydrocarbon degradation was measured by gas chromatography analysis. Diversity of 16S rRNA gene sequences was reduced by diesel, and more so by the combination of diesel and MAP. Actinobacteria dominated uncontaminated soils with <10% organic matter, while Proteobacteria dominated higher-organic matter soils, and this pattern was exaggerated following disturbance. Degradation with and without MAP was predictable by initial bacterial diversity and the abundance of specific assemblages of Betaproteobacteria, respectively. High Betaproteobacteria abundance was positively correlated with high diesel degradation in MAP-treated soils, suggesting this may be an important group to stimulate. The predictability with which bacterial communities respond to these disturbances suggests that costly and time-consuming contaminated site assessments may not be necessary in the future.

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“…There are 6 rRNA operons with a 16S, tRNA-Ile, tRNAAla, 23S, 5S organization. The genes studied previously were clearly identified via genome sequencing (4,5,6). The availability of the complete genome sequence of Acinetobacter sp.…”

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Complete Genome Sequence of the Diesel-Degrading Acinetobacter sp. Strain DR1

2010

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The genus Acinetobacter is ubiquitous in soil, aquatic, and sediment environments and includes pathogenic strains, such as A. baumannii. Many Acinetobacter species isolated from various environments have biotechnological potential since they are capable of degrading a variety of pollutants. Acinetobacter sp. strain DR1 has been identified as a diesel degrader. Here we report the complete genome sequence of Acinetobacter sp. DR1 isolated from the soil of a rice paddy.

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Protection against diesel oil toxicity by sodium chloride-induced exopolysaccharides in Acinetobacter sp. strain DR1

Cited by 49 publications

References 31 publications

Comparative Genomic Analysis of Acinetobacter oleivorans DR1 To Determine Strain-Specific Genomic Regions and Gentisate Biodegradation

Comparative Genomic Analysis of Acinetobacter oleivorans DR1 To Determine Strain-Specific Genomic Regions and Gentisate Biodegradation

Predictable bacterial composition and hydrocarbon degradation in Arctic soils following diesel and nutrient disturbance

Complete Genome Sequence of the Diesel-Degrading Acinetobacter sp. Strain DR1

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