C–S Targeted Biodegradation of Dibenzothiophene by Stenotrophomonas sp. NISOC-04

Papizadeh, Moslem; Ardakani, Mohammad Roayaei; Motamedi, Hossein; Rasouli, I; Zarei, Mohammad

doi:10.1007/s12010-011-9310-3

Cited by 33 publications

(15 citation statements)

References 27 publications

(42 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The presence of both anoxygenic and oxygenic phototrophic microorganisms in the sites contaminated with hydrocarbons, especially crude oil, have been shown in previous studies as well . The production of molecular oxygen, specifically by the phototrophic microorganisms, as well as nitrogen fixation and the production of simple organics can be critical for the improvement of bioremediation of hydrocarbons by chemoheterotrophic bacteria . However, as reported by AN et al, the phototrophic microorganisms comprise only a small portion of the microbial communities in the crude oil contaminated sites.…”

Section: Discussionmentioning

confidence: 70%

Microbial diversity and hydrocarbon degrading gene capacity of a crude oil field soil as determined by metagenomics analysis

Abbasian¹,

Thavamani²,

Megharaj³

et al. 2016

Biotechnology Progress

View full text Add to dashboard Cite

Soils contaminated with crude oil are rich sources of enzymes suitable for both degradation of hydrocarbons through bioremediation processes and improvement of crude oil during its refining steps. Due to the long term selection, crude oil fields are unique environments for the identification of microorganisms with the ability to produce these enzymes. In this metagenomic study, based on Hiseq Illumina sequencing of samples obtained from a crude oil field and analysis of data on MG-RAST, Actinomycetales (9.8%) were found to be the dominant microorganisms, followed by Rhizobiales (3.3%). Furthermore, several functional genes were found in this study, mostly belong to Actinobacteria (12.35%), which have a role in the metabolism of aliphatic and aromatic hydrocarbons (2.51%), desulfurization (0.03%), element shortage (5.6%), and resistance to heavy metals (1.1%). This information will be useful for assisting in the application of microorganisms in the removal of hydrocarbon contamination and/or for improving the quality of crude oil. © 2016 American Institute of Chemical Engineers Biotechnol. Prog., 32:638-648, 2016.

show abstract

Section: Discussionmentioning

confidence: 70%

Microbial diversity and hydrocarbon degrading gene capacity of a crude oil field soil as determined by metagenomics analysis

Abbasian¹,

Thavamani²,

Megharaj³

et al. 2016

Biotechnology Progress

View full text Add to dashboard Cite

show abstract

“…SRB microbial populations differed with position on the beach, with populations within supratidal SRBs distinct from intertidal snare oil and SOM samples (Urbano et al, 2013). Specifically, known PAH degrading genera such as Mycobacterium (Khan et al, 2002; Uyttebroek et al, 2006) and Stenotrophomonas (Juhasz et al, 2000; Papizadeh et al, 2011) comprised significant bands in the supratidal and intertidal snare samples, respectively (Urbano et al, 2013). These results compliment microbial community structure analyses in oiled beach sands in Florida (Kostka et al, 2011) that revealed a diverse response, including sequences derived from members of oil-degrading taxa such as Gammaproteobacteria ( Alcanivorax, Marinobacter ) and Alphaproteobacteria ( Rhodobacteraceae ).…”

Section: Discussionmentioning

confidence: 99%

Biodegradation of MC252 oil in oil:sand aggregates in a coastal headland beach environment

et al. 2014

View full text Add to dashboard Cite

Unique oil:sand aggregates, termed surface residue balls (SRBs), were formed on coastal headland beaches along the northern Gulf of Mexico as emulsified MC252 crude oil mixed with sand following the Deepwater Horizon spill event. The objective of this study is to assess the biodegradation potential of crude oil components in these aggregates using multiple lines of evidence on a heavily-impacted coastal headland beach in Louisiana, USA. SRBs were sampled over a 19-month period on the supratidal beach environment with reasonable control over and knowledge of the residence time of the aggregates on the beach surface. Polycyclic aromatic hydrocarbons (PAHs) and alkane concentration ratios were measured including PAH/C30-hopane, C2/C3 phenanthrenes, C2/C3 dibenzothiophenes and alkane/C30-hopane and demonstrated that biodegradation was occurring in SRBs in the supratidal. These biodegradation reactions occurred over time frames relevant to the coastal processes moving SRBs off the beach. In contrast, submerged oil mat samples from the intertidal did not demonstrate chemical changes consistent with biodegradation. Review and analysis of additional biogeochemical parameters suggested the existence of a moisture and nutrient-limited biodegradation regime on the supratidal beach environment. At this location, SRBs possess moisture contents <2% and molar C:N ratios from 131–323, well outside of optimal values for biodegradation in the literature. Despite these limitations, biodegradation of PAHs and alkanes proceeded at relevant rates (2–8 year−1) due in part to the presence of degrading populations, i.e., Mycobacterium sp., adapted to these conditions. For submerged oil mat samples in the intertidal, an oxygen and salinity-impacted regime is proposed that severely limits biodegradation of alkanes and PAHs in this environment. These results support the hypothesis that SRBs deposited at different locations on the beach have different biogeochemical characteristics (e.g., moisture, salinity, terminal electron acceptors, nutrient, and oil composition) due, in part, to their location on the landscape.

show abstract

“…(betaproteobacteria), Desulfobacterium (deltaproteobacteria), able to desulfurize DBT, have been also described and some of them have been used in BDS processes (Table 1) (Papizadeh et al, 2011;Gunam et al, 2013;Liu et al, 2015;Bordoloi et al, 2016;Mohebali and Ball, 2016;Dejaloud et al, 2017;Gunam et al, 2017;Papizadeh et al, 2017). Nevertheless, the genetic characterization of the desulfurization gene clusters in these Gram-negative bacteria is still missing.…”

Section: Biodesulfurization: Microorganisms and Pathwaysmentioning

confidence: 99%

Metabolic and process engineering for biodesulfurization in Gram-negative bacteria

Martínez¹,

Mohamed

Santos

et al. 2017

Journal of Biotechnology

View full text Add to dashboard Cite

Microbial desulfurization or biodesulfurization (BDS) is an attractive low-cost and environmentally friendly complementary technology to the hydrotreating chemical process based on the potential of certain bacteria to specifically remove sulfur from S-heterocyclic compounds of crude fuels that are recalcitrant to the chemical treatments. The 4S or Dsz sulfur specific pathway for dibenzothiophene (DBT) and alkyl-substituted DBTs, widely used as model S-heterocyclic compounds, has been extensively studied at the physiological, biochemical and genetic levels mainly in Gram-positive bacteria. Nevertheless, several Gram-negative bacteria have been also used in BDS because they are endowed with some properties, e.g., broad metabolic versatility and easy genetic and genomic manipulation, that make them suitable chassis for systems metabolic engineering strategies. A high number of recombinant bacteria, many of which are Pseudomonas strains, have been constructed to overcome the major bottlenecks of the desulfurization process, i.e., expression of the dsz operon, activity of the Dsz enzymes, retro-inhibition of the Dsz pathway, availability of reducing power, uptake-secretion of substrate and intermediates, tolerance to organic solvents and metals, and other host-specific limitations. However, to attain a BDS process with industrial applicability, it is necessary to apply all the knowledge and advances achieved at the genetic and metabolic levels to the process engineering level, i.e., kinetic modelling, scale-up of biphasic systems, enhancing mass transfer rates, biocatalyst separation, etc. The production of high-added value products derived from the organosulfur material present in oil can be regarded also as an economically viable process that has barely begun to be explored.

show abstract

C–S Targeted Biodegradation of Dibenzothiophene by Stenotrophomonas sp. NISOC-04

Cited by 33 publications

References 27 publications

Microbial diversity and hydrocarbon degrading gene capacity of a crude oil field soil as determined by metagenomics analysis

Microbial diversity and hydrocarbon degrading gene capacity of a crude oil field soil as determined by metagenomics analysis

Biodegradation of MC252 oil in oil:sand aggregates in a coastal headland beach environment

Metabolic and process engineering for biodesulfurization in Gram-negative bacteria

Contact Info

Product

Resources

About