Biodegradation of Mono-aromatic Compounds by Bacteria

Shrivastava, Rahul; Phale, Prashant S.

doi:10.1007/978-94-007-2229-3_21

Cited by 3 publications

(3 citation statements)

References 226 publications

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“…Relative to marine snow, oil is more recalcitrant to biodegradation because of its stable reduced aliphatic or aromatic molecular structures that need to be activated for further mineralization, i.e., through oxygen inclusion by oxygenases (Chikere et al, 2011;Nzila, 2018;Shrivastava & Phale, 2012). As a result, biodegradation of oil components with half-lives up to 60 days, depending on the oxygen availability will be slower compared to, e.g., marine snow (Bagby et al, 2017;Prince et al, 2017;Reddy et al, 2012).…”

Section: Discussionmentioning

confidence: 99%

Marine Snow-Oil Interaction Affects n-Alkane Biodegradation in Sediment

Rahsepar

Eenennaam

Radović

et al. 2022

Water Air Soil Pollut

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During the Deepwater Horizon (DwH) oil spill, an excessive production of marine snow was observed, and it was estimated that as much as 14% of the oil was transferred to the ocean floor by MOSSFA (Marine Oil Snow Sedimentation and Flocculent Accumulation). MOSSFA is an important pathway of transferring oil to the ocean floor. We performed experiments at laboratory scale in 15 aquaria, representing 5 exposures of marine snow with or without oil, only oil, and controls with only clay or sediment. We developed a method to produce artificial marine snow, which resembles the natural marine snow. Results showed 40% less biodegradation of alkanes in “marine snow with oil” compared to “only oil.” Most probably, this is due to preferred biodegradation of marine snow organics comparing to oil alkanes. Biodegradation of marine snow reduces the dissolved oxygen concentration, which might result in anaerobic conditions in the sediment layer. This finding can be projected to a potential ocean floor effect.

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Section: Discussionmentioning

confidence: 99%

Marine Snow-Oil Interaction Affects n-Alkane Biodegradation in Sediment

Rahsepar

Eenennaam

Radović

et al. 2022

Water Air Soil Pollut

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“…During ortho -cleavage pathway, the aromatic ring fission occurs between two hydroxyl groups while during meta -cleavage this is done between one hydroxylated carbon and other adjacent non-hydroxylated carbon. Both ways are catalyzed by intradiol and extradiol dioxygenases, respectively, using Fe +3 and Fe +2 at the active site [ 2 , 11 , 12 ]. Finally, ring cleavage products are transformed into aliphatic molecules that can be channeled to the central metabolism.…”

Section: Introductionmentioning

confidence: 99%

An optimized method for RNA extraction from the polyurethane oligomer degrading strain Pseudomonas capeferrum TDA1 growing on aromatic substrates such as phenol and 2,4-diaminotoluene

et al. 2021

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Bacterial degradation of xenobiotic compounds is an intense field of research already for decades. Lately, this research is complemented by downstream applications including Next Generation Sequencing (NGS), RT-PCR, qPCR, and RNA-seq. For most of these molecular applications, high-quality RNA is a fundamental necessity. However, during the degradation of aromatic substrates, phenolic or polyphenolic compounds such as polycatechols are formed and interact irreversibly with nucleic acids, making RNA extraction from these sources a major challenge. Therefore, we established a method for total RNA extraction from the aromatic degrading Pseudomonas capeferrum TDA1 based on RNAzol® RT, glycogen and a final cleaning step. It yields a high-quality RNA from cells grown on TDA1 and on phenol compared to standard assays conducted in the study. To our knowledge, this is the first report tackling the problem of polyphenolic compound interference with total RNA isolation in bacteria. It might be considered as a guideline to improve total RNA extraction from other bacterial species.

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“…Relative to marine snow, oil is recalcitrant to biodegradation because of its stable reduced aliphatic or aromatic molecular structures that need to be activated for further mineralization, i.e., through oxygen inclusion by oxygenases (Chikere et al, 2011;Nzila, 2018;Shrivastava and Phale, 2012). As a result, biodegradation of oil components with half-lives up to 60 days, depending on the oxygen availability, will be slower compared to, e.g., marine snow (Bagby et al, 2017;Prince et al, 2017;Reddy et al, 2012).…”

Section: Discussionmentioning

confidence: 99%

Deep marine oil spills : Oil-particles-dispersants interaction and impact on oil biodegradation

Rahsepar¹

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Chapter 1 11 General introduction Chapter 2 31 Chemical dispersants: oil biodegradation friend or foe? Chapter 3 49 Oil biodegradation: interactions of artificial marine snow, clay particles, oil and Corexit Chapter 4 65 Marine snow-oil interaction affects n alkanes biodegradation in sediment Chapter 5 85 Marine snow increases the adverse effects of oil on benthic invertebrates Chapter 6 1 19 General discussion on processes impacting oil biodegradation in deep marine oil spills References 145

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Biodegradation of Mono-aromatic Compounds by Bacteria

Cited by 3 publications

References 226 publications

Marine Snow-Oil Interaction Affects n-Alkane Biodegradation in Sediment

Marine Snow-Oil Interaction Affects n-Alkane Biodegradation in Sediment

An optimized method for RNA extraction from the polyurethane oligomer degrading strain Pseudomonas capeferrum TDA1 growing on aromatic substrates such as phenol and 2,4-diaminotoluene

Deep marine oil spills : Oil-particles-dispersants interaction and impact on oil biodegradation

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