1
|
Bacterial Communities Associated with Crude Oil Bioremediation through Composting Approaches with Indigenous Bacterial Isolate. Life (Basel) 2022; 12:life12111712. [DOI: 10.3390/life12111712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 10/24/2022] [Accepted: 10/25/2022] [Indexed: 11/16/2022] Open
Abstract
In this study, we aim to investigate the efficiency of crude oil bioremediation through composting and culture-assisted composting. First, forty-eight bacteria were isolated from a crude oil-contaminated soil, and the isolate with the highest crude oil degradation activity, identified as Pseudomonas aeruginosa, was selected. The bioremediation was then investigated and compared between crude oil-contaminated soil (S), the contaminated soil composted with fruit-based waste (SW), and the contaminated soil composted with the same waste with the addition of the selected bacterium (SWB). Both compost-based methods showed high efficiencies of crude oil bioremediation (78.1% and 83.84% for SW and SWB, respectively). However, only a slight difference between the treatments without and with the addition of P. aeruginosa was observed. To make a clear understanding of this point, bacterial communities throughout the 4-week bioremediation period were analyzed. It was found that the community dynamics between both composted treatments were similar, which corresponds with their similar bioremediation efficiencies. Interestingly, Pseudomonas disappeared from the system after one week, which suggests that this genus was not the key degrader or only involved in the early stage of the process. Altogether, our results elaborate that fruit-based composting is an effective approach for crude oil bioremediation.
Collapse
|
2
|
From Surface Water to the Deep Sea: A Review on Factors Affecting the Biodegradation of Spilled Oil in Marine Environment. JOURNAL OF MARINE SCIENCE AND ENGINEERING 2022. [DOI: 10.3390/jmse10030426] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Over the past century, the demand for petroleum products has increased rapidly, leading to higher oil extraction, processing and transportation, which result in numerous oil spills in coastal-marine environments. As the spilled oil can negatively affect the coastal-marine ecosystems, its transport and fates captured a significant interest of the scientific community and regulatory agencies. Typically, the environment has natural mechanisms (e.g., photooxidation, biodegradation, evaporation) to weather/degrade and remove the spilled oil from the environment. Among various oil weathering mechanisms, biodegradation by naturally occurring bacterial populations removes a majority of spilled oil, thus the focus on bioremediation has increased significantly. Helping in the marginal recognition of this promising technique for oil-spill degradation, this paper reviews recently published articles that will help broaden the understanding of the factors affecting biodegradation of spilled oil in coastal-marine environments. The goal of this review is to examine the effects of various environmental variables that contribute to oil degradation in the coastal-marine environments, as well as the factors that influence these processes. Physico-chemical parameters such as temperature, oxygen level, pressure, shoreline energy, salinity, and pH are taken into account. In general, increase in temperature, exposure to sunlight (photooxidation), dissolved oxygen (DO), nutrients (nitrogen, phosphorous and potassium), shoreline energy (physical advection—waves) and diverse hydrocarbon-degrading microorganisms consortium were found to increase spilled oil degradation in marine environments. In contrast, higher initial oil concentration and seawater pressure can lower oil degradation rates. There is limited information on the influences of seawater pH and salinity on oil degradation, thus warranting additional research. This comprehensive review can be used as a guide for bioremediation modeling and mitigating future oil spill pollution in the marine environment by utilizing the bacteria adapted to certain conditions.
Collapse
|
3
|
Schreiber L, Fortin N, Tremblay J, Wasserscheid J, Sanschagrin S, Mason J, Wright CA, Spear D, Johannessen SC, Robinson B, King T, Lee K, Greer CW. In situ microcosms deployed at the coast of British Columbia (Canada) to study dilbit weathering and associated microbial communities under marine conditions. FEMS Microbiol Ecol 2021; 97:fiab082. [PMID: 34124756 PMCID: PMC8213973 DOI: 10.1093/femsec/fiab082] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Accepted: 06/11/2021] [Indexed: 12/30/2022] Open
Abstract
Douglas Channel and the adjacent Hecate Strait (British Columbia, Canada) are part of a proposed route to ship diluted bitumen (dilbit). This study presents how two types of dilbit naturally degrade in this environment by using an in situ microcosm design based on dilbit-coated beads. We show that dilbit-associated n-alkanes were microbially biodegraded with estimated half-lives of 57-69 days. n-Alkanes appeared to be primarily degraded using the aerobic alkB, ladA and CYP153 pathways. The loss of dilbit polycyclic aromatic hydrocarbons (PAHs) was slower than of n-alkanes, with half-lives of 89-439 days. A biodegradation of PAHs could not be conclusively determined, although a significant enrichment of the phnAc gene (a marker for aerobic PAH biodegradation) was observed. PAH degradation appeared to be slower in Hecate Strait than in Douglas Channel. Microcosm-associated microbial communities were shaped by the presence of dilbit, deployment location and incubation time but not by dilbit type. Metagenome-assembled genomes of putative dilbit-degraders were obtained and could be divided into populations of early, late and continuous degraders. The majority of the identified MAGs could be assigned to the orders Flavobacteriales, Methylococcales, Pseudomonadales and Rhodobacterales. A high proportion of the MAGs represent currently unknown lineages or lineages with currently no cultured representative.
Collapse
Affiliation(s)
- Lars Schreiber
- Energy, Mining and Environment Research Center, National Research Council of Canada (NRC), 6100 Royalmount Ave, Montreal, QC H4P 2R2, Canada
| | - Nathalie Fortin
- Energy, Mining and Environment Research Center, National Research Council of Canada (NRC), 6100 Royalmount Ave, Montreal, QC H4P 2R2, Canada
| | - Julien Tremblay
- Energy, Mining and Environment Research Center, National Research Council of Canada (NRC), 6100 Royalmount Ave, Montreal, QC H4P 2R2, Canada
| | - Jessica Wasserscheid
- Energy, Mining and Environment Research Center, National Research Council of Canada (NRC), 6100 Royalmount Ave, Montreal, QC H4P 2R2, Canada
| | - Sylvie Sanschagrin
- Energy, Mining and Environment Research Center, National Research Council of Canada (NRC), 6100 Royalmount Ave, Montreal, QC H4P 2R2, Canada
| | - Jennifer Mason
- Centre for Offshore Oil, Gas and Energy Research (COOGER), Bedford Institute of Oceanography, Fisheries and Oceans Canada (DFO), 1 Challenger Drive, P.O. Box 1006, Dartmouth, NS B2Y 4A2, Canada
| | - Cynthia A Wright
- Institute of Ocean Sciences, Fisheries and Oceans Canada (DFO), 9860 West Saanich Road, P.O. Box 6000, Sidney, BC V8L 4B2, Canada
| | - David Spear
- Institute of Ocean Sciences, Fisheries and Oceans Canada (DFO), 9860 West Saanich Road, P.O. Box 6000, Sidney, BC V8L 4B2, Canada
| | - Sophia C Johannessen
- Institute of Ocean Sciences, Fisheries and Oceans Canada (DFO), 9860 West Saanich Road, P.O. Box 6000, Sidney, BC V8L 4B2, Canada
| | - Brian Robinson
- Centre for Offshore Oil, Gas and Energy Research (COOGER), Bedford Institute of Oceanography, Fisheries and Oceans Canada (DFO), 1 Challenger Drive, P.O. Box 1006, Dartmouth, NS B2Y 4A2, Canada
| | - Thomas King
- Centre for Offshore Oil, Gas and Energy Research (COOGER), Bedford Institute of Oceanography, Fisheries and Oceans Canada (DFO), 1 Challenger Drive, P.O. Box 1006, Dartmouth, NS B2Y 4A2, Canada
| | - Kenneth Lee
- Ecosystem Science, Fisheries and Oceans Canada (DFO), 200 Kent St, Ottawa,ON K1A 0E6, Canada
| | - Charles W Greer
- Energy, Mining and Environment Research Center, National Research Council of Canada (NRC), 6100 Royalmount Ave, Montreal, QC H4P 2R2, Canada
- Department of Natural Resource Sciences, McGill University, Macdonald-Stewart Building, McGill, 21111 Lakeshore Road, Sainte-Anne-de-Bellevue, QC H9X 3V9, Canada
| |
Collapse
|
4
|
Palamae S, Sompongchaiyakul P, Suttinun O. Effects of crude oil and aromatic compounds on growth and bioluminescence of Vibrio campbellii FS5. ENVIRONMENTAL MONITORING AND ASSESSMENT 2021; 193:291. [PMID: 33891179 DOI: 10.1007/s10661-021-09081-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Accepted: 04/15/2021] [Indexed: 06/12/2023]
Abstract
Fifteen native luminescent bacteria were isolated from the Gulf of Thailand, and their sensitivity for the detection of toxicity of crude oil and its aromatic components was investigated. Of these isolates, Vibrio campbellii strain FS5 was one of the two most highly inhibited bacteria at all crude oil concentrations. This bacterium showed a decrease in luminescence intensity of between 10.7 and 80.2% after a 15-min exposure to 0.0001-10 mg/L of crude oil. The degree of bioluminescence inhibition increased with increasing concentrations of crude oil. The presence of crude oil at all concentrations had negative effects on the log bioluminescence per log number of viable cells after 15- to 105-min exposure. About 10 to 100 times, lower half maximal effective concentration (EC50) values were observed for polycyclic aromatic hydrocarbons (PAHs) than those for benzene, toluene, ethylbenzene, and xylene (BTEX). In the presence of each individual BTEX and PAH, the bioluminescence inhibition increased with increasing exposure time (1-32 h). This indigenous bacterium can be used as a simple and general indicator of oil contamination and its impact on coastal waters as well as for assessing potential toxicity during oil bioremediation.
Collapse
Affiliation(s)
- Suriya Palamae
- Environmental Assessment and Technology for Hazardous Waste Management Research Center, Faculty of Environmental Management, Prince of Songkla University, Songkhla, 90112, Thailand
| | - Penjai Sompongchaiyakul
- Department of Marine Science, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
- Center of Excellence On Hazardous Substance Management (HSM), Bangkok, 10330, Thailand
| | - Oramas Suttinun
- Environmental Assessment and Technology for Hazardous Waste Management Research Center, Faculty of Environmental Management, Prince of Songkla University, Songkhla, 90112, Thailand.
- Center of Excellence On Hazardous Substance Management (HSM), Bangkok, 10330, Thailand.
| |
Collapse
|
5
|
Hernández-López EL, Gasperin J, Bernáldez-Sarabia J, Licea-Navarro AF, Guerrero A, Lizárraga-Partida ML. Detection of Alcanivorax spp., Cycloclasticus spp., and Methanomicrobiales in water column and sediment samples in the Gulf of Mexico by qPCR. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:35131-35139. [PMID: 31680200 PMCID: PMC6900280 DOI: 10.1007/s11356-019-06551-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Accepted: 09/16/2019] [Indexed: 06/10/2023]
Abstract
Water column and sediment samples were collected in the southern Gulf of Mexico (GoMex) during 3 oceanographic cruises: XIXIMI-04 (September 2015), XIXIMI-05 (June 2016), and XIXIMI-06 (August 2017). DNA that was extracted from the samples was analyzed by qPCR to detect and quantify bacterial groups that have been reported to metabolize alkanes (Alcanivorax) and aromatic hydrocarbons (Cycloclasticus) and are involved in methane production (Methanomicrobiales). The results were then analyzed with regard to the water masses that are currently detected in the GoMex. Generally, we observed a decrease in the proportion of Alcanivorax and a rise in those of Cycloclasticus and Methanomicrobiales in samples from the surface to deep waters and in sediment samples. Scatterplots of the results showed that the relative abundance of the 3 groups was higher primarily from the surface to 1000 m, but the levels of Cycloclasticus and Methanomicrobiales were high in certain water samples below 1000 m and in sediments. In conclusion, oil-degrading bacteria are distributed widely from the surface to deep waters and sediments throughout the southern GoMex, representing a potential inoculum of bacteria for various hydrocarbon fractions that are ready for proliferation and degradation in the event of an oil spill from the seafloor or along the water column.
Collapse
Affiliation(s)
- Edna L Hernández-López
- Centro de Investigación Científica y de Educación Superior de Ensenada, Carretera Ensenada-Tijuana 3918, zona Playitas, 22860, Ensenada, Baja California, México
| | - Jahaziel Gasperin
- Centro de Investigación Científica y de Educación Superior de Ensenada, Carretera Ensenada-Tijuana 3918, zona Playitas, 22860, Ensenada, Baja California, México
| | - Johanna Bernáldez-Sarabia
- Centro de Investigación Científica y de Educación Superior de Ensenada, Carretera Ensenada-Tijuana 3918, zona Playitas, 22860, Ensenada, Baja California, México
| | - Alexei F Licea-Navarro
- Centro de Investigación Científica y de Educación Superior de Ensenada, Carretera Ensenada-Tijuana 3918, zona Playitas, 22860, Ensenada, Baja California, México
| | - Abraham Guerrero
- Centro de Investigación Científica y de Educación Superior de Ensenada, Carretera Ensenada-Tijuana 3918, zona Playitas, 22860, Ensenada, Baja California, México
| | - Marcial Leonardo Lizárraga-Partida
- Centro de Investigación Científica y de Educación Superior de Ensenada, Carretera Ensenada-Tijuana 3918, zona Playitas, 22860, Ensenada, Baja California, México.
| |
Collapse
|
6
|
Thompson HF, Lesaulnier C, Pelikan C, Gutierrez T. Visualisation of the obligate hydrocarbonoclastic bacteria Polycyclovorans algicola and Algiphilus aromaticivorans in co-cultures with micro-algae by CARD-FISH. J Microbiol Methods 2018; 152:73-79. [DOI: 10.1016/j.mimet.2018.07.016] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2018] [Revised: 07/26/2018] [Accepted: 07/27/2018] [Indexed: 12/28/2022]
|
7
|
Michas A, Vestergaard G, Trautwein K, Avramidis P, Hatzinikolaou DG, Vorgias CE, Wilkes H, Rabus R, Schloter M, Schöler A. More than 2500 years of oil exposure shape sediment microbiomes with the potential for syntrophic degradation of hydrocarbons linked to methanogenesis. MICROBIOME 2017; 5:118. [PMID: 28893308 PMCID: PMC5594585 DOI: 10.1186/s40168-017-0337-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2017] [Accepted: 09/03/2017] [Indexed: 05/25/2023]
Abstract
BACKGROUND Natural oil seeps offer the opportunity to study the adaptation of ecosystems and the associated microbiota to long-term oil exposure. In the current study, we investigated a land-to-sea transition ecosystem called "Keri Lake" in Zakynthos Island, Greece. This ecosystem is unique due to asphalt oil springs found at several sites, a phenomenon already reported 2500 years ago. Sediment microbiomes at Keri Lake were studied, and their structure and functional potential were compared to other ecosystems with oil exposure histories of various time periods. RESULTS Replicate sediment cores (up to 3-m depth) were retrieved from one site exposed to oil as well as a non-exposed control site. Samples from three different depths were subjected to chemical analysis and metagenomic shotgun sequencing. At the oil-exposed site, we observed high amounts of asphalt oil compounds and a depletion of sulfate compared to the non-exposed control site. The numbers of reads assigned to genes involved in the anaerobic degradation of hydrocarbons were similar between the two sites. The numbers of denitrifiers and sulfate reducers were clearly lower in the samples from the oil-exposed site, while a higher abundance of methanogens was detected compared to the non-exposed site. Higher abundances of the genes of methanogenesis were also observed in the metagenomes from other ecosystems with a long history of oil exposure, compared to short-term exposed environments. CONCLUSIONS The analysis of Keri Lake metagenomes revealed that microbiomes in the oil-exposed sediment have a higher potential for methanogenesis over denitrification/sulfate reduction, compared to those in the non-exposed site. Comparison with metagenomes from various oil-impacted environments suggests that syntrophic interactions of hydrocarbon degraders with methanogens are favored in the ecosystems with a long-term presence of oil.
Collapse
Affiliation(s)
- Antonios Michas
- Research Unit Comparative Microbiome Analysis (COMI), Helmholtz Zentrum München, Ingolstaedter Landstraße 1, D-85764 Neuherberg, Germany
| | - Gisle Vestergaard
- Research Unit Comparative Microbiome Analysis (COMI), Helmholtz Zentrum München, Ingolstaedter Landstraße 1, D-85764 Neuherberg, Germany
| | - Kathleen Trautwein
- General and Molecular Microbiology, Institute for Chemistry and Biology of the Marine Environment (ICBM), Carl von Ossietzky University Oldenburg, Carl-von-Ossietzky-Straße 9-11, 26111 Oldenburg, Germany
| | - Pavlos Avramidis
- Department of Geology, University of Patras, Panepistimioupoli Patron, 26504 Rio-Patras, Greece
| | - Dimitris G. Hatzinikolaou
- Department of Biology, National and Kapodistrian University of Athens, Zografou University Campus, 15784 Athens, Greece
| | - Constantinos E. Vorgias
- Department of Biology, National and Kapodistrian University of Athens, Zografou University Campus, 15784 Athens, Greece
| | - Heinz Wilkes
- Organic Geochemistry, Institute for Chemistry and Biology of the Marine Environment (ICBM), Carl von Ossietzky University Oldenburg, Carl-von-Ossietzky-Straße 9-11, 26129 Oldenburg, Germany
| | - Ralf Rabus
- General and Molecular Microbiology, Institute for Chemistry and Biology of the Marine Environment (ICBM), Carl von Ossietzky University Oldenburg, Carl-von-Ossietzky-Straße 9-11, 26111 Oldenburg, Germany
| | - Michael Schloter
- Research Unit Comparative Microbiome Analysis (COMI), Helmholtz Zentrum München, Ingolstaedter Landstraße 1, D-85764 Neuherberg, Germany
| | - Anne Schöler
- Research Unit Comparative Microbiome Analysis (COMI), Helmholtz Zentrum München, Ingolstaedter Landstraße 1, D-85764 Neuherberg, Germany
| |
Collapse
|
8
|
Terrisse F, Cravo-Laureau C, Noël C, Cagnon C, Dumbrell AJ, McGenity TJ, Duran R. Variation of Oxygenation Conditions on a Hydrocarbonoclastic Microbial Community Reveals Alcanivorax and Cycloclasticus Ecotypes. Front Microbiol 2017; 8:1549. [PMID: 28861063 PMCID: PMC5562018 DOI: 10.3389/fmicb.2017.01549] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Accepted: 07/31/2017] [Indexed: 12/26/2022] Open
Abstract
Deciphering the ecology of marine obligate hydrocarbonoclastic bacteria (MOHCB) is of crucial importance for understanding their success in occupying distinct niches in hydrocarbon-contaminated marine environments after oil spills. In marine coastal sediments, MOHCB are particularly subjected to extreme fluctuating conditions due to redox oscillations several times a day as a result of mechanical (tide, waves and currents) and biological (bioturbation) reworking of the sediment. The adaptation of MOHCB to the redox oscillations was investigated by an experimental ecology approach, subjecting a hydrocarbon-degrading microbial community to contrasting oxygenation regimes including permanent anoxic conditions, anoxic/oxic oscillations and permanent oxic conditions. The most ubiquitous MOHCB, Alcanivorax and Cycloclasticus, showed different behaviors, especially under anoxic/oxic oscillation conditions, which were more favorable for Alcanivorax than for Cycloclasticus. The micro-diversity of 16S rRNA gene transcripts from these genera revealed specific ecotypes for different oxygenation conditions and their dynamics. It is likely that such ecotypes allow the colonization of distinct ecological niches that may explain the success of Alcanivorax and Cycloclasticus in hydrocarbon-contaminated coastal sediments during oil-spills.
Collapse
Affiliation(s)
- Fanny Terrisse
- IPREM UMR CNRS 5254, Equipe Environnement et Microbiologie, MELODY Group, Université de Pau et des Pays de l'AdourPau, France
| | - Cristiana Cravo-Laureau
- IPREM UMR CNRS 5254, Equipe Environnement et Microbiologie, MELODY Group, Université de Pau et des Pays de l'AdourPau, France
| | - Cyril Noël
- IPREM UMR CNRS 5254, Equipe Environnement et Microbiologie, MELODY Group, Université de Pau et des Pays de l'AdourPau, France
| | - Christine Cagnon
- IPREM UMR CNRS 5254, Equipe Environnement et Microbiologie, MELODY Group, Université de Pau et des Pays de l'AdourPau, France
| | - Alex J Dumbrell
- School of Biological Sciences, University of EssexColchester, United Kingdom
| | - Terry J McGenity
- School of Biological Sciences, University of EssexColchester, United Kingdom
| | - Robert Duran
- IPREM UMR CNRS 5254, Equipe Environnement et Microbiologie, MELODY Group, Université de Pau et des Pays de l'AdourPau, France
| |
Collapse
|
9
|
Abstract
Cycloclasticus bacteria are ubiquitous in oil-rich
regions of the ocean and are known for their ability to degrade polycyclic
aromatic hydrocarbons (PAHs). In this study, we describe
Cycloclasticus that have established a symbiosis with
Bathymodiolus heckerae mussels and poecilosclerid sponges
from asphalt-rich, deep-sea oil seeps at Campeche Knolls in the southern Gulf of
Mexico. Genomic and transcriptomic analyses revealed that in contrast to all
known Cycloclasticus, the symbiotic
Cycloclasticus appeared to lack the genes needed for PAH
degradation. Instead, these symbionts use propane and other short-chain alkanes
such as ethane and butane as carbon and energy sources, thus expanding the
limited range of substrates known to power chemosynthetic symbioses. Analyses of
short-chain alkanes in the environment of the Campeche Knolls symbioses revealed
that these are present at high concentrations (in the µM to mM range).
Comparative genomic analyses revealed high similarities between the genes used
by the symbiotic Cycloclasticus to degrade short-chain alkanes
and those of free-living Cycloclasticus that bloomed during the
Deepwater Horizon (DWH) oil spill. Our results indicate that the metabolic
versatility of bacteria within the Cycloclasticus clade is
higher than previously assumed, and highlight the expanded role of these
keystone species in the degradation of marine hydrocarbons.
Collapse
|
10
|
Čučak DI, Spasojević JM, Babić OB, Maletić SP, Simeunović JB, Rončević SD, Dalmacija BD, Tamaš I, Radnović DV. A chemical and microbiological characterization and toxicity assessment of the Pančevo industrial complex wastewater canal sediments, Serbia. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:8458-8468. [PMID: 28188553 DOI: 10.1007/s11356-017-8513-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Accepted: 01/26/2017] [Indexed: 06/06/2023]
Abstract
The wastewater canal Vojlovica of the Pančevo industrial area, Serbia, is the main collector of the effluents from the local industrial complex. The canal is directly connected to the Europe's second largest river, the Danube. Here, we present a chemical and microbiological analysis of the sediment in order to determine the fate of pollutants over the years, as well as its current condition. Dry matter, clay and organic matter content, a Kjeldahl ammonia, phosphorus, metals, and polychlorinated biphenyls as well as polycyclic aromatic hydrocarbons concentrations were measured. Microbiological analysis included heterotrophic and oil-degrading bacterial counts, isolation of the phenanthrene-degrading bacteria, and identification of cyanobacteria. Generally, in comparison to the results from previous studies, concentrations of the measured pollutants have been in a decline. Specifically, the metal and polycyclic aromatic hydrocarbon concentrations were reduced whereas microbial counts and toxicity tests did not indicate significant pollution. The obtained results are probably a consequence of an improved wastewater treatment and microbial degradation of pollutants.
Collapse
Affiliation(s)
- Dragana I Čučak
- Department of Chemistry, Biochemistry and Environmental Protection, University of Novi Sad Faculty of Sciences, Trg Dositeja Obradovića 3, Novi Sad, 21000, Serbia.
| | - Jelena M Spasojević
- Department of Chemistry, Biochemistry and Environmental Protection, University of Novi Sad Faculty of Sciences, Trg Dositeja Obradovića 3, Novi Sad, 21000, Serbia
| | - Olivera B Babić
- Department of Biology and Ecology, University of Novi Sad Faculty of Sciences, Trg Dositeja Obradovića 2, Novi Sad, 21000, Serbia
| | - Snežana P Maletić
- Department of Chemistry, Biochemistry and Environmental Protection, University of Novi Sad Faculty of Sciences, Trg Dositeja Obradovića 3, Novi Sad, 21000, Serbia
| | - Jelica B Simeunović
- Department of Biology and Ecology, University of Novi Sad Faculty of Sciences, Trg Dositeja Obradovića 2, Novi Sad, 21000, Serbia
| | - Srđan D Rončević
- Department of Chemistry, Biochemistry and Environmental Protection, University of Novi Sad Faculty of Sciences, Trg Dositeja Obradovića 3, Novi Sad, 21000, Serbia
| | - Božo D Dalmacija
- Department of Chemistry, Biochemistry and Environmental Protection, University of Novi Sad Faculty of Sciences, Trg Dositeja Obradovića 3, Novi Sad, 21000, Serbia
| | - Ivica Tamaš
- Department of Biology and Ecology, University of Novi Sad Faculty of Sciences, Trg Dositeja Obradovića 2, Novi Sad, 21000, Serbia
| | - Dragan V Radnović
- Department of Biology and Ecology, University of Novi Sad Faculty of Sciences, Trg Dositeja Obradovića 2, Novi Sad, 21000, Serbia
| |
Collapse
|
11
|
Lee J, Han I, Kang BR, Kim SH, Sul WJ, Lee TK. Degradation of crude oil in a contaminated tidal flat area and the resilience of bacterial community. MARINE POLLUTION BULLETIN 2017; 114:296-301. [PMID: 27671845 DOI: 10.1016/j.marpolbul.2016.09.043] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2016] [Revised: 09/12/2016] [Accepted: 09/19/2016] [Indexed: 06/06/2023]
Abstract
Crude oil spills, Hebei Spirit in South Korea, is considered as one of the worst environmental disasters of the region. Our understanding on activation of oil-degrading bacteria and resilience of microbial community in oil contaminated sites are limited due to scarcity of such event. In the present study, tidal flat sediment contaminated by the oil spill were investigated for duration of 13months to identify temporal change in microbial community and functional genes responsible for PAH-degradation. The results showed predominance of previously known oil-degrading genera, such as Cycloclasticus, Alcanivorax, and Thalassolituus, displaying significant increase within first four months of the accident. The disturbance caused by the oil spill altered the microbial community and its functional structures, but they were almost restored to the original state after 13months. Present study demonstrated high detoxification capacity of indigenous bacterial populations in the tidal flat sediments and its resilience of microbial community.
Collapse
Affiliation(s)
- Jaejin Lee
- Unit of Antarctic K-route Expedition, Korea Polar Research Institute, Incheon, Republic of Korea
| | - Il Han
- Department of Environmental Engineering, Yonsei University, Wonju, Republic of Korea
| | - Bo Ram Kang
- Department of Environmental Engineering, Yonsei University, Wonju, Republic of Korea
| | - Seong Heon Kim
- Department of Environmental Engineering, Yonsei University, Wonju, Republic of Korea
| | - Woo Jun Sul
- Department of System Biotechnology, Chung-Ang University, Anseong, Republic of Korea
| | - Tae Kwon Lee
- Department of Environmental Engineering, Yonsei University, Wonju, Republic of Korea.
| |
Collapse
|
12
|
Acosta-González A, Martirani-von Abercron SM, Rosselló-Móra R, Wittich RM, Marqués S. The effect of oil spills on the bacterial diversity and catabolic function in coastal sediments: a case study on the Prestige oil spill. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2015; 22:15200-14. [PMID: 25869434 DOI: 10.1007/s11356-015-4458-y] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2015] [Accepted: 03/27/2015] [Indexed: 05/20/2023]
Abstract
The accident of the Prestige oil tanker in 2002 contaminated approximately 900 km of the coastline along the northern Spanish shore, as well as parts of Portugal and France coast, with a mixture of heavy crude oil consisting of polycyclic aromatic hydrocarbons, alkanes, asphaltenes and resins. The capacity of the autochthonous bacterial communities to respond to the oil spill was assessed indirectly by determining the hydrocarbon profiles of weathered oil samples collected along the shore, as well as through isotope ratios of seawater-dissolved CO2, and directly by analyses of denaturing gradient gel electrophoresis fingerprints and 16S rRNA gene libraries. Overall, the results evidenced biodegradation of crude oil components mediated by natural bacterial communities, with a bias towards lighter and less substituted compounds. The changes observed in the Proteobacteria, the most abundant phylum in marine sediments, were related to the metabolic profiles of the sediment. The presence of crude oil in the supratidal and intertidal zones increased the abundance of Alpha- and Gammaproteobacteria, dominated by the groups Sphingomonadaceae, Rhodobacteraceae and Chromatiales, whilst Gamma- and Deltaproteobacteria were more relevant in subtidal zones. The phylum Actinobacteria, and particularly the genus Rhodococcus, was a key player in the microbial response to the spill, especially in the degradation of the alkane fraction. The addition of inorganic fertilizers enhanced total biodegradation rates, suggesting that, in these environments, nutrients were insufficient to support significant growth after the huge increase in carbon sources, as evidenced in other spills. The presence of bacterial communities able to respond to a massive oil input in this area was consistent with the important history of pollution of the region by crude oil.
Collapse
Affiliation(s)
- Alejandro Acosta-González
- Department of Environmental Protection, Consejo Superior de Investigaciones Científicas, Estación Experimental del Zaidín, Profesor Albareda 1, 18008, Granada, Spain
- Facultad de Ingeniería, Universidad de La Sabana, Autopista Norte km 7, Chía, Cundinamarca, Colombia
| | - Sophie-Marie Martirani-von Abercron
- Department of Environmental Protection, Consejo Superior de Investigaciones Científicas, Estación Experimental del Zaidín, Profesor Albareda 1, 18008, Granada, Spain
| | - Ramon Rosselló-Móra
- Institut Mediterrani d'Estudis Avançats, IMEDEA, CSIC-UIB, C/. Miquel Marqués 21, 07190, Esporles, Illes Balears, Spain
| | - Regina-Michaela Wittich
- Department of Environmental Protection, Consejo Superior de Investigaciones Científicas, Estación Experimental del Zaidín, Profesor Albareda 1, 18008, Granada, Spain
| | - Silvia Marqués
- Department of Environmental Protection, Consejo Superior de Investigaciones Científicas, Estación Experimental del Zaidín, Profesor Albareda 1, 18008, Granada, Spain.
| |
Collapse
|
13
|
Bioconversion of α-pinene by a novel cold-adapted fungus Chrysosporium pannorum. J Ind Microbiol Biotechnol 2014; 42:181-8. [PMID: 25487757 PMCID: PMC4293472 DOI: 10.1007/s10295-014-1550-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2014] [Accepted: 07/02/2014] [Indexed: 11/30/2022]
Abstract
The psychrotrophic fungus Chrysosporium pannorum A-1 is reported for the first time as a novel biocatalyst for O2-promoted oxidation of α-pinene. GC–MS analysis indicated that the main products of the reaction were compounds of a high commercial value, verbenol (1) and verbenone (2). Exponentially growing cells (days 2–3) were about twice as active as cells in the late stationary phase in terms of the total concentration of products. The highest yields of 1 and 2 were obtained using three-day and two-day-old mycelia and a medium containing 1.5 and 1 % (v/v) of the substrate, respectively. The optimal time for the bioconversion of α-pinene varied from 1 to 3 days, and depended on the kind of product desired. Most of 1 was produced at a relatively high concentration of 360 mg/L after the first six hours of α-pinene bioconversion [with an average yield of 69 mg/(g dry cell L aqueous phase)]. The oxidative activity of C. pannorum was identified across a wide temperature range of 5–25 °C, 10 °C being the optimum for the production of 1 and 20 °C for the production of 2. Sequential addition of the substrate during 3 days of the biotransformation resulted in a significant increase in 1 and 2 up to 722 and 176 mg/L, respectively, and a 2-fold enhancement of product yield as compared to bioconversion with a single supply of α-pinene. The concentration of total conversion products in the culture medium reached 1.33 g/L [which corresponded product yield of 225 mg/(g dry cell L)]. This represents probably the most promising result reported to date for oxidative biotransformation of α-pinene by a wild-type microorganism.
Collapse
|
14
|
Sauret C, Séverin T, Vétion G, Guigue C, Goutx M, Pujo-Pay M, Conan P, Fagervold SK, Ghiglione JF. 'Rare biosphere' bacteria as key phenanthrene degraders in coastal seawaters. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2014; 194:246-253. [PMID: 25156140 DOI: 10.1016/j.envpol.2014.07.024] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2014] [Revised: 07/16/2014] [Accepted: 07/18/2014] [Indexed: 05/20/2023]
Abstract
By coupling DNA-SIP and pyrosequencing approaches, we identified Cycloclasticus sp. as a keystone degrader of polycyclic aromatic hydrocarbons (PAH) despite being a member of the 'rare biosphere' in NW Mediterranean seawaters. We discovered novel PAH-degrading bacteria (Oceanibaculum sp., Sneathiella sp.) and we identified other groups already known to possess this function (Alteromonas sp., Paracoccus sp.). Together with Cycloclasticus sp., these groups contributed to potential in situ phenanthrene degradation at a rate >0.5 mg l(-1) day(-1), sufficient to account for a considerable part of PAH degradation. Further, we characterized the PAH-tolerant bacterial communities, which were much more diverse in the polluted site by comparison to unpolluted marine references. PAH-tolerant bacteria were also members of the rare biosphere, such as Glaciecola sp. Collectively, these data show the complex interactions between PAH-degraders and PAH-tolerant bacteria and provide new insights for the understanding of the functional ecology of marine bacteria in polluted waters.
Collapse
Affiliation(s)
- Caroline Sauret
- CNRS, UMR 7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique, F-66650 Banyuls/mer, France; Sorbonne Universités, UPMC Univ Paris 06, UMR 7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique, F-66650 Banyuls/mer, France
| | - Tatiana Séverin
- CNRS, UMR 7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique, F-66650 Banyuls/mer, France; Sorbonne Universités, UPMC Univ Paris 06, UMR 7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique, F-66650 Banyuls/mer, France
| | - Gilles Vétion
- CNRS, UMR 7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique, F-66650 Banyuls/mer, France; CNRS, UMR 8222, Laboratoire d'Ecogéochimie des Environments Benthiques (LECOB), Observatoire Océanologique, F-66650 Banyuls/mer, France
| | - Catherine Guigue
- Aix-Marseille University, Mediterranean Institute of Oceanography (M I O), 13288 Marseille, Cedex 9, France; CNRS-INSU/IRD UM 110, Université du Sud Toulon-Var, 83957 La Garde Cedex, France
| | - Madeleine Goutx
- Aix-Marseille University, Mediterranean Institute of Oceanography (M I O), 13288 Marseille, Cedex 9, France; CNRS-INSU/IRD UM 110, Université du Sud Toulon-Var, 83957 La Garde Cedex, France
| | - Mireille Pujo-Pay
- CNRS, UMR 7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique, F-66650 Banyuls/mer, France; Sorbonne Universités, UPMC Univ Paris 06, UMR 7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique, F-66650 Banyuls/mer, France
| | - Pascal Conan
- CNRS, UMR 7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique, F-66650 Banyuls/mer, France; Sorbonne Universités, UPMC Univ Paris 06, UMR 7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique, F-66650 Banyuls/mer, France
| | - Sonja K Fagervold
- CNRS, UMR 7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique, F-66650 Banyuls/mer, France; CNRS, UMR 8222, Laboratoire d'Ecogéochimie des Environments Benthiques (LECOB), Observatoire Océanologique, F-66650 Banyuls/mer, France
| | - Jean-François Ghiglione
- CNRS, UMR 7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique, F-66650 Banyuls/mer, France; Sorbonne Universités, UPMC Univ Paris 06, UMR 7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique, F-66650 Banyuls/mer, France.
| |
Collapse
|
15
|
Todorova NH, Mironova RS, Karamfilov VK. Comparative molecular analysis of bacterial communities inhabiting pristine and polluted with polycyclic aromatic hydrocarbons Black Sea coastal sediments. MARINE POLLUTION BULLETIN 2014; 83:231-240. [PMID: 24759506 DOI: 10.1016/j.marpolbul.2014.03.047] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2013] [Revised: 03/13/2014] [Accepted: 03/29/2014] [Indexed: 06/03/2023]
Abstract
Molecular analysis was applied to characterize bacterial community structure in sediment samples collected from pristine site and oil-polluted Black Sea harbor. Amplified Ribosomal DNA Restriction Analysis (ARDRA) revealed a high similarity in the restriction patterns of both samples thus not demonstrating the effect of the pollutant on the structure of the bacterial communities. Constructed 16S rRNA gene libraries gave more detailed assessment of members. Results showed that α- and γ-Proteobacteria were dominant in the oil polluted site, whereas the pristine site was characterized by prevalence of Actinobacteria. The biodegradative potential of the adapted bacterial community in the oil-polluted sediments was demonstrated by the presence of the aromatic ring hydroxylating dioxygenase genes.
Collapse
Affiliation(s)
- Nadezhda H Todorova
- Institute of Biodiversity and Ecosystem Research, Bulgarian Academy of Sciences, Y. Gagarin 2 str., 1113 Sofia, Bulgaria.
| | - Roumyana S Mironova
- Institute of Molecular Biology "Roumen Tsanev", Bulgarian Academy of Sciences, G. Bonchev str., bl. 21, 1113 Sofia, Bulgaria.
| | - Ventzislav K Karamfilov
- Institute of Biodiversity and Ecosystem Research, Bulgarian Academy of Sciences, Y. Gagarin 2 str., 1113 Sofia, Bulgaria.
| |
Collapse
|
16
|
Wu B, Lan T, Lu D, Liu Z. Ecological and enzymatic responses to petroleum contamination. ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2014; 16:1501-9. [PMID: 24765642 DOI: 10.1039/c3em00731f] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
The changes in microbial ecology interpreted from taxonomic and functional genes and biological functions represented by urease and dehydrogenase activities were monitored in soil contaminated with different petroleum hydrocarbons including crude oil, diesel, n-hexadecane and poly-aromatic hydrocarbons (PAHs). It was shown that the presence of n-hexadecane stimulated the activity of indigenous microorganisms, especially alkane degrading bacteria, and led to over 20% degradation of n-hexadecane within one month. No obvious degradation of the other three types of petroleum hydrocarbons was observed. The stimulation effect was most marked in the soil spiked with a medium concentration (2500 mg kg(-1) dry soil) of n-hexadecane. However, the presence of PAHs completely inhibited the previously-mentioned bioactivities of the soil. The content of PAH degrading bacteria, however, increased more than 10-fold, indicating the selection effect of PAHs on soil bacteria. The impacts of diesel and crude oil on the microbial ecology and biological functions varied significantly with their concentration. The disclosure of the ecological and enzymatic responses could be helpful in soil bioremediation.
Collapse
Affiliation(s)
- Binbin Wu
- Department of Chemical Engineering, Tsinghua University, Beijing, 10084, PR China.
| | | | | | | |
Collapse
|
17
|
Singh AK, Sherry A, Gray ND, Jones DM, Bowler BFJ, Head IM. Kinetic parameters for nutrient enhanced crude oil biodegradation in intertidal marine sediments. Front Microbiol 2014; 5:160. [PMID: 24782848 PMCID: PMC3990054 DOI: 10.3389/fmicb.2014.00160] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2013] [Accepted: 03/25/2014] [Indexed: 11/13/2022] Open
Abstract
Availability of inorganic nutrients, particularly nitrogen and phosphorous, is often a primary control on crude oil hydrocarbon degradation in marine systems. Many studies have empirically determined optimum levels of inorganic N and P for stimulation of hydrocarbon degradation. Nevertheless, there is a paucity of information on fundamental kinetic parameters for nutrient enhanced crude oil biodegradation that can be used to model the fate of crude oil in bioremediation programmes that use inorganic nutrient addition to stimulate oil biodegradation. Here we report fundamental kinetic parameters (Ks and qmax) for nitrate- and phosphate-stimulated crude oil biodegradation under nutrient limited conditions and with respect to crude oil, under conditions where N and P are not limiting. In the marine sediments studied, crude oil degradation was limited by both N and P availability. In sediments treated with 12.5 mg/g of oil but with no addition of N and P, hydrocarbon degradation rates, assessed on the basis of CO2 production, were 1.10 ± 0.03 μmol CO2/g wet sediment/day which were comparable to rates of CO2 production in sediments to which no oil was added (1.05 ± 0.27 μmol CO2/g wet sediment/day). When inorganic nitrogen was added alone maximum rates of CO2 production measured were 4.25 ± 0.91 μmol CO2/g wet sediment/day. However, when the same levels of inorganic nitrogen were added in the presence of 0.5% P w/w of oil (1.6 μmol P/g wet sediment) maximum rates of measured CO2 production increased more than four-fold to 18.40 ± 1.04 μmol CO2/g wet sediment/day. Ks and qmax estimates for inorganic N (in the form of sodium nitrate) when P was not limiting were 1.99 ± 0.86 μmol/g wet sediment and 16.16 ± 1.28 μmol CO2/g wet sediment/day respectively. The corresponding values for P were 63 ± 95 nmol/g wet sediment and 12.05 ± 1.31 μmol CO2/g wet sediment/day. The qmax values with respect to N and P were not significantly different (P < 0.05). When N and P were not limiting Ks and qmax for crude oil were 4.52 ± 1.51 mg oil/g wet sediment and 16.89 ± 1.25 μmol CO2/g wet sediment/day. At concentrations of inorganic N above 45 μmol/g wet sediment inhibition of CO2 production from hydrocarbon degradation was evident. Analysis of bacterial 16S rRNA genes indicated that Alcanivorax spp. were selected in these marine sediments with increasing inorganic nutrient concentration, whereas Cycloclasticus spp. were more prevalent at lower inorganic nutrient concentrations. These data suggest that simple empirical estimates of the proportion of nutrients added relative to crude oil concentrations may not be sufficient to guarantee successful crude oil bioremediation in oxic beach sediments. The data we present also help define the maximum rates and hence timescales required for bioremediation of beach sediments.
Collapse
Affiliation(s)
- Arvind K Singh
- School of Civil Engineering and Geosciences, Newcastle University Newcastle upon Tyne, UK ; Department of Biochemistry, North - Eastern Hill University Shillong, Meghalaya, India
| | - Angela Sherry
- School of Civil Engineering and Geosciences, Newcastle University Newcastle upon Tyne, UK
| | - Neil D Gray
- School of Civil Engineering and Geosciences, Newcastle University Newcastle upon Tyne, UK
| | - D Martin Jones
- School of Civil Engineering and Geosciences, Newcastle University Newcastle upon Tyne, UK
| | - Bernard F J Bowler
- School of Civil Engineering and Geosciences, Newcastle University Newcastle upon Tyne, UK
| | - Ian M Head
- School of Civil Engineering and Geosciences, Newcastle University Newcastle upon Tyne, UK
| |
Collapse
|
18
|
Lamendella R, Strutt S, Borglin S, Chakraborty R, Tas N, Mason OU, Hultman J, Prestat E, Hazen TC, Jansson JK. Assessment of the Deepwater Horizon oil spill impact on Gulf coast microbial communities. Front Microbiol 2014; 5:130. [PMID: 24772107 PMCID: PMC3982105 DOI: 10.3389/fmicb.2014.00130] [Citation(s) in RCA: 101] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2013] [Accepted: 03/13/2014] [Indexed: 02/01/2023] Open
Abstract
One of the major environmental concerns of the Deepwater Horizon oil spill in the Gulf of Mexico was the ecological impact of the oil that reached shorelines of the Gulf Coast. Here we investigated the impact of the oil on the microbial composition in beach samples collected in June 2010 along a heavily impacted shoreline near Grand Isle, Louisiana. Successional changes in the microbial community structure due to the oil contamination were determined by deep sequencing of 16S rRNA genes. Metatranscriptomics was used to determine expression of functional genes involved in hydrocarbon degradation processes. In addition, potential hydrocarbon-degrading Bacteria were obtained in culture. The 16S data revealed that highly contaminated samples had higher abundances of Alpha- and Gammaproteobacteria sequences. Successional changes in these classes were observed over time, during which the oil was partially degraded. The metatranscriptome data revealed that PAH, n-alkane, and toluene degradation genes were expressed in the contaminated samples, with high homology to genes from Alteromonadales, Rhodobacterales, and Pseudomonales. Notably, Marinobacter (Gammaproteobacteria) had the highest representation of expressed genes in the samples. A Marinobacter isolated from this beach was shown to have potential for transformation of hydrocarbons in incubation experiments with oil obtained from the Mississippi Canyon Block 252 (MC252) well; collected during the Deepwater Horizon spill. The combined data revealed a response of the beach microbial community to oil contaminants, including prevalence of Bacteria endowed with the functional capacity to degrade oil.
Collapse
Affiliation(s)
- Regina Lamendella
- Lawrence Berkeley National Laboratory, Earth Sciences Division, Ecology Department Berkeley, CA, USA ; Biology Department, Juniata College Huntingdon, PA, USA
| | - Steven Strutt
- Biology Department, Juniata College Huntingdon, PA, USA
| | - Sharon Borglin
- Lawrence Berkeley National Laboratory, Earth Sciences Division, Ecology Department Berkeley, CA, USA
| | - Romy Chakraborty
- Lawrence Berkeley National Laboratory, Earth Sciences Division, Ecology Department Berkeley, CA, USA
| | - Neslihan Tas
- Lawrence Berkeley National Laboratory, Earth Sciences Division, Ecology Department Berkeley, CA, USA
| | - Olivia U Mason
- Lawrence Berkeley National Laboratory, Earth Sciences Division, Ecology Department Berkeley, CA, USA ; Department of Earth, Ocean and Atmospheric Science, Florida State University Tallahassee, FL, USA
| | - Jenni Hultman
- Lawrence Berkeley National Laboratory, Earth Sciences Division, Ecology Department Berkeley, CA, USA ; Department of Food Hygiene and Environmental Health, University of Helsinki Helsinki, Finland
| | - Emmanuel Prestat
- Lawrence Berkeley National Laboratory, Earth Sciences Division, Ecology Department Berkeley, CA, USA
| | - Terry C Hazen
- Lawrence Berkeley National Laboratory, Earth Sciences Division, Ecology Department Berkeley, CA, USA ; Department of Civil and Environmental Engineering, University of Tennessee Knoxville, TN, USA ; Oak Ridge National Laboratory, Biosciences Division Oak Ridge, TN, USA
| | - Janet K Jansson
- Lawrence Berkeley National Laboratory, Earth Sciences Division, Ecology Department Berkeley, CA, USA ; Department of Energy, Joint Genome Institute Walnut Creek, CA, USA
| |
Collapse
|
19
|
Enhanced bioremediation of oil spills in the sea. Curr Opin Biotechnol 2014; 27:191-4. [PMID: 24657912 DOI: 10.1016/j.copbio.2014.02.004] [Citation(s) in RCA: 178] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2013] [Revised: 02/04/2014] [Accepted: 02/05/2014] [Indexed: 11/23/2022]
Abstract
Hydrocarbon-degrading bacteria are ubiquitous in the sea, including hydrocarbonoclastic bacteria that utilize hydrocarbons almost exclusively as carbon and energy sources. However, the rates at which they naturally degrade petroleum following an oil spill appear to be too slow to prevent oil from reaching the shore and causing environmental damage, as has been documented in the Exxon Valdez and Gulf of Mexico disasters. Unfortunately, there is, at present, no experimentally demonstrated methodology for accelerating the degradation of hydrocarbons in the sea. The rate-limiting factor for petroleum degradation in the sea is availability of nitrogen and phosphorus. Oleophilic fertilizers, such as Inipol EAP 22 and urea-formaldehyde polymers, have stimulated hydrocarbon degradation on shorelines but are less effective in open systems. We suggest uric acid as a potentially useful fertilizer enhancing bioremediation at sea.
Collapse
|
20
|
Degradation of [Dha(7)]MC-LR by a Microcystin Degrading Bacterium Isolated from Lake Rotoiti, New Zealand. ISRN MICROBIOLOGY 2013; 2013:596429. [PMID: 23936728 PMCID: PMC3712209 DOI: 10.1155/2013/596429] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/01/2013] [Accepted: 05/28/2013] [Indexed: 11/24/2022]
Abstract
For the first time a microcystin-degrading bacterium (NV-3 isolate) has been isolated and characterized from a NZ lake. Cyanobacterial blooms in New Zealand (NZ) waters contain microcystin (MC) hepatotoxins at concentrations which are a risk to animal and human health. Degradation of MCs by naturally occurring bacteria is an attractive bioremediation option for removing MCs from drinking and recreational water sources. The NV-3 isolate was identified by 16S rRNA sequence analysis and found to have 100% nucleotide sequence homology with the Sphingomonas MC-degrading bacterial strain MD-1 from Japan. The NV-3 isolate (concentration of 1.0 × 108 CFU/mL) at 30°C degraded a mixture of [Dha7]MC-LR and MC-LR (concentration 25 μg/mL) at a maximum rate of 8.33 μg/mL/day. The intermediate by-products of [Dha7]MC-LR degradation were detected and similar to MC-LR degradation by-products. The presence of three genes (mlrA, mlrB, and mlrC), that encode three enzymes involved in the degradation of MC-LR, were identified in the NV-3 isolate. This study confirmed that degradation of [Dha7]MC-LR by the Sphingomonas isolate NV-3 occurred by a similar mechanism previously described for MC-LR by Sphingomonas strain MJ-PV (ACM-3962). This has important implications for potential bioremediation of toxic blooms containing a variety of MCs in NZ waters.
Collapse
|
21
|
Teramoto M, Queck SY, Ohnishi K. Specialized Hydrocarbonoclastic Bacteria Prevailing in Seawater around a Port in the Strait of Malacca. PLoS One 2013; 8:e66594. [PMID: 23824553 PMCID: PMC3688937 DOI: 10.1371/journal.pone.0066594] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2013] [Accepted: 05/08/2013] [Indexed: 11/18/2022] Open
Abstract
Major degraders of petroleum hydrocarbons in tropical seas have been indicated only by laboratory culturing and never through observing the bacterial community structure in actual environments. To demonstrate the major degraders of petroleum hydrocarbons spilt in actual tropical seas, indigenous bacterial community in seawater at Sentosa (close to a port) and East Coast Park (far from a port) in Singapore was analyzed. Bacterial species was more diverse at Sentosa than at the Park, and the composition was different: γ-Proteobacteria (57.3%) dominated at Sentosa, while they did not at the Park. Specialized hydrocarbonoclastic bacteria (SHCB), which use limited carbon sources with a preference for petroleum hydrocarbons, were found as abundant species at Sentosa, indicating petroleum contamination. On the other hand, SHCB were not the abundant species at the Park. The abundant species of SHCB at Sentosa were Oleibacter marinus and Alcanivorax species (strain 2A75 type), which have previously been indicated by laboratory culturing as important petroleum-aliphatic-hydrocarbon degraders in tropical seas. Together with the fact that SHCB have been identified as major degraders of petroleum hydrocarbons in marine environments, these results demonstrate that the O. marinus and Alcanivorax species (strain 2A75 type) would be major degraders of petroleum aliphatic hydrocarbons spilt in actual tropical seas.
Collapse
Affiliation(s)
- Maki Teramoto
- Oceanography Section, Kochi University, Kohasu, Oko, Nankoku, Kochi, Japan
- * E-mail:
| | - Shu Yeong Queck
- School of Chemical & Life Sciences, Nanyang Polytechnic, Singapore, Singapore
| | - Kouhei Ohnishi
- Research Institute of Molecular Genetics, Kochi University, Nankoku, Kochi, Japan
| |
Collapse
|
22
|
Raggi L, Schubotz F, Hinrichs KU, Dubilier N, Petersen JM. Bacterial symbionts of Bathymodiolus mussels and Escarpia tubeworms from Chapopote, an asphalt seep in the Southern Gulf of Mexico. Environ Microbiol 2012; 15:1969-87. [PMID: 23279012 DOI: 10.1111/1462-2920.12051] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2011] [Accepted: 11/14/2012] [Indexed: 11/28/2022]
Abstract
Chemosynthetic life was recently discovered at Chapopote, an asphalt hydrocarbon seep in the southern Gulf of Mexico. Preliminary morphological analyses indicated that one tubeworm and two mussel species colonize Chapopote. Our molecular analyses identified the tubeworm as Escarpia sp., and the mussels as Bathymodiolus heckerae and B. brooksi. Comparative 16S rRNA analysis and FISH showed that all three species harbour intracellular sulfur-oxidizing symbionts highly similar or identical to those found in the same host species from northern Gulf of Mexico (nGoM). The mussels also harbour methane-oxidizing symbionts, and these shared highly similar to identical 16S rRNA sequences to their nGoM conspecifics. We discovered a novel symbiont in B. heckerae, which is closely related to hydrocarbon-degrading bacteria of the genus Cycloclasticus. In B. heckerae, we found key genes for the use of aromatic compounds, and its stable carbon isotope values were consistently higher than B. brooksi, indicating that the novel symbiont might use isotopically heavy aromatic hydrocarbons from the asphalt seep. This discovery is particularly intriguing because until now only methane and reduced sulfur compounds have been shown to power cold-seep chemosynthetic symbioses. The abundant hydrocarbons available at Chapopote would provide these mussel symbioses with a rich source of nutrition.
Collapse
Affiliation(s)
- L Raggi
- Max Planck Institute for Marine Microbiology, Celsiusstr. 1, 28359 Bremen, Germany
| | | | | | | | | |
Collapse
|
23
|
Zhu Y, Kitamura K, Maruyama A, Higashihara T, Kiyama R. Estrogenic activity of bio-degradation products of C-heavy oil revealed by gene-expression profiling using an oligo-DNA microarray system. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2012; 168:10-14. [PMID: 22580234 DOI: 10.1016/j.envpol.2012.04.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2012] [Revised: 04/05/2012] [Accepted: 04/06/2012] [Indexed: 05/31/2023]
Abstract
Degradation of heavy oil by bacteria to decompose organic compounds such as aliphatic and aromatic hydrocarbons has been used in bioremediation. However, the biological and environmental effects of the degradation products including intermediates are still not clear. Here, we monitored the degradation of C-heavy oil by analyzing the products formed in cultures with oil-degrading bacteria (complex microbes or a single bacterial strain). Furthermore, proliferation assays using breast cancer MCF-7 cells and gene-expression profiling of MCF-7 cells using oligonucleotide-DNA microarrays were performed to evaluate the estrogenic activity of the degradation products. While the products did not show any significant cell-proliferative activity, the oil samples cultured for longer periods (2-3 months), whether cultured with mixed microbes or a single bacterial strain, showed gene-expression profiles similar to that of 17β-estradiol (E2). These results suggest that oil-degradation products have estrogenic activity, and estrogen-like components could possibly be produced during the degradation process.
Collapse
Affiliation(s)
- Yun Zhu
- Signaling Molecules Research Group, Biomedical Research Institute, National Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki 305-8566, Japan
| | | | | | | | | |
Collapse
|
24
|
Jin HM, Kim JM, Lee HJ, Madsen EL, Jeon CO. Alteromonas as a key agent of polycyclic aromatic hydrocarbon biodegradation in crude oil-contaminated coastal sediment. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2012; 46:7731-7740. [PMID: 22709320 DOI: 10.1021/es3018545] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Following the 2007 oil spill in South Korean tidal flats, we sought to identify microbial players influencing the environmental fate of released polycyclic aromatic hydrocarbons (PAHs). Two years of monitoring showed that PAH concentrations in sediments declined substantially. Enrichment cultures were established using seawater and modified minimal media containing naphthalene as sole carbon source. The enriched microbial community was characterized by 16S rRNA-based DGGE profiling; sequencing selected bands indicated Alteromonas (among others) were active. Alteromonas sp. SN2 was isolated and was able to degrade naphthalene, phenanthrene, anthracene, and pyrene in laboratory-incubated microcosm assays. PCR-based analysis of DNA extracted from the sediments revealed naphthalene dioxygenase (NDO) genes of only two bacterial groups: Alteromonas and Cycloclasticus, having gentisate and catechol metabolic pathways, respectively. However, reverse transcriptase PCR-based analysis of field-fixed mRNA revealed in situ expression of only the Alteromonas-associated NDO genes; in laboratory microcosms these NDO genes were markedly induced by naphthalene addition. Analysis by GC/MS showed that naphthalene in tidal-flat samples was metabolized predominantly via the gentisate pathway; this signature metabolite was detected (0.04 μM) in contaminated field sediment. A quantitative PCR-based two-year data set monitoring Alteromonas-specific 16S rRNA genes and NDO transcripts in sea-tidal flat field samples showed that the abundance of bacteria related to strain SN2 during the winter season was 20-fold higher than in the summer season. Based on the above data, we conclude that strain SN2 and its relatives are site natives--key players in PAH degradation and adapted to winter conditions in these contaminated sea-tidal-flat sediments.
Collapse
Affiliation(s)
- Hyun Mi Jin
- School of Biological Sciences, Chung-Ang University , 84, HeukSeok-Ro, Seoul 156-756, Republic of Korea
| | | | | | | | | |
Collapse
|
25
|
Khondee N, Tathong S, Pinyakong O, Powtongsook S, Chatchupong T, Ruangchainikom C, Luepromchai E. Airlift bioreactor containing chitosan-immobilized Sphingobium sp. P2 for treatment of lubricants in wastewater. JOURNAL OF HAZARDOUS MATERIALS 2012; 213-214:466-473. [PMID: 22398031 DOI: 10.1016/j.jhazmat.2012.02.018] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2011] [Revised: 02/04/2012] [Accepted: 02/08/2012] [Indexed: 05/31/2023]
Abstract
An internal loop airlift bioreactor containing chitosan-immobilized Sphingobium sp. P2 was applied for the removal of automotive lubricants from emulsified wastewater. The chitosan-immobilized bacteria had higher lubricant removal efficiency than free and killed-immobilized cells because they were able to sorp and degrade the lubricants simultaneously. In a semi-continuous batch experiment, the immobilized bacteria were able to remove 80-90% of the 200 mg L(-1) total petroleum hydrocarbons (TPH) from both synthetic and carwash wastewater. The internal loop airlift bioreactor, containing 4 g L(-1) immobilized bacteria, was later designed and operated at 2.0 h HRT (hydraulic retention time) for over 70 days. At a steady state, the reactor continuously removed 85±5% TPH and 73±11% chemical oxygen demand (COD) from the carwash wastewater with 25-200 mg L(-1) amended lubricant. The internal loop airlift reactor's simple operation and high stability demonstrate its high potential for use in treating lubricants in emulsified wastewater from carwashes and other industries.
Collapse
Affiliation(s)
- Nichakorn Khondee
- International Postgraduate Programs in Environmental Management, Graduate School, Chulalongkorn University, Bangkok, Thailand
| | | | | | | | | | | | | |
Collapse
|
26
|
Gutierrez T, Nichols PD, Whitman WB, Aitken MD. Porticoccus hydrocarbonoclasticus sp. nov., an aromatic hydrocarbon-degrading bacterium identified in laboratory cultures of marine phytoplankton. Appl Environ Microbiol 2012; 78:628-37. [PMID: 22139001 PMCID: PMC3264135 DOI: 10.1128/aem.06398-11] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2011] [Accepted: 11/11/2011] [Indexed: 11/20/2022] Open
Abstract
A marine bacterium, designated strain MCTG13d, was isolated from a laboratory culture of the dinoflagellate Lingulodinium polyedrum CCAP1121/2 by enrichment with polycyclic aromatic hydrocarbons (PAHs) as the sole carbon source. Based on 16S rRNA gene sequence comparisons, the strain was most closely related to Porticoccus litoralis IMCC2115(T) (96.5%) and to members of the genera Microbulbifer (91.4 to 93.7%) and Marinimicrobium (90.4 to 92.0%). Phylogenetic trees showed that the strain clustered in a distinct phyletic line in the class Gammaproteobacteria for which P. litoralis is presently the sole cultured representative. The strain was strictly aerobic, rod shaped, Gram negative, and halophilic. Notably, it was able to utilize hydrocarbons as sole sources of carbon and energy, whereas sugars did not serve as growth substrates. The predominant isoprenoid quinone of strain MCTG13d was Q-8, and the dominant fatty acids were C(16:1ω7c), C(18:1ω7c), and C(16:0). DNA G+C content for the isolate was 54.9 ± 0.42 mol%. Quantitative PCR primers targeting the 16S rRNA gene of this strain showed that this organism was common in other laboratory cultures of marine phytoplankton. On the basis of phenotypic and genotypic characteristics, strain MCTG13d represents a novel species of Porticoccus, for which the name Porticoccus hydrocarbonoclasticus sp. nov. is proposed. The discovery of this highly specialized hydrocarbon-degrading bacterium living in association with marine phytoplankton suggests that phytoplankton represent a previously unrecognized biotope of novel bacterial taxa that degrade hydrocarbons in the ocean.
Collapse
Affiliation(s)
- Tony Gutierrez
- Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina, USA.
| | | | | | | |
Collapse
|
27
|
Chanthamalee J, Luepromchai E. Isolation and application of Gordonia sp. JC11 for removal of boat lubricants. J GEN APPL MICROBIOL 2012; 58:19-31. [DOI: 10.2323/jgam.58.19] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
28
|
Hydrocarbon-degrading bacteria and the bacterial community response in gulf of Mexico beach sands impacted by the deepwater horizon oil spill. Appl Environ Microbiol 2011; 77:7962-74. [PMID: 21948834 DOI: 10.1128/aem.05402-11] [Citation(s) in RCA: 469] [Impact Index Per Article: 36.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
A significant portion of oil from the recent Deepwater Horizon (DH) oil spill in the Gulf of Mexico was transported to the shoreline, where it may have severe ecological and economic consequences. The objectives of this study were (i) to identify and characterize predominant oil-degrading taxa that may be used as model hydrocarbon degraders or as microbial indicators of contamination and (ii) to characterize the in situ response of indigenous bacterial communities to oil contamination in beach ecosystems. This study was conducted at municipal Pensacola Beach, FL, where chemical analysis revealed weathered oil petroleum hydrocarbon (C₈ to C₄₀) concentrations ranging from 3.1 to 4,500 mg kg⁻¹ in beach sands. A total of 24 bacterial strains from 14 genera were isolated from oiled beach sands and confirmed as oil-degrading microorganisms. Isolated bacterial strains were primarily Gammaproteobacteria, including representatives of genera with known oil degraders (Alcanivorax, Marinobacter, Pseudomonas, and Acinetobacter). Sequence libraries generated from oiled sands revealed phylotypes that showed high sequence identity (up to 99%) to rRNA gene sequences from the oil-degrading bacterial isolates. The abundance of bacterial SSU rRNA gene sequences was ∼10-fold higher in oiled (0.44 × 10⁷ to 10.2 × 10⁷ copies g⁻¹) versus clean (0.024 × 10⁷ to 1.4 × 10⁷ copies g⁻¹) sand. Community analysis revealed a distinct response to oil contamination, and SSU rRNA gene abundance derived from the genus Alcanivorax showed the largest increase in relative abundance in contaminated samples. We conclude that oil contamination from the DH spill had a profound impact on the abundance and community composition of indigenous bacteria in Gulf beach sands, and our evidence points to members of the Gammaproteobacteria (Alcanivorax, Marinobacter) and Alphaproteobacteria (Rhodobacteraceae) as key players in oil degradation there.
Collapse
|
29
|
Teramoto M, Ohuchi M, Hatmanti A, Darmayati Y, Widyastuti Y, Harayama S, Fukunaga Y. Oleibacter marinus gen. nov., sp. nov., a bacterium that degrades petroleum aliphatic hydrocarbons in a tropical marine environment. Int J Syst Evol Microbiol 2011; 61:375-380. [DOI: 10.1099/ijs.0.018671-0] [Citation(s) in RCA: 72] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Three Gram-negative, motile, mesophilic, aerobic, rod-shaped bacterial strains, designated 2O1T, 1O14 and 1O18, were isolated from Indonesian seawater after enrichment with crude oil and a continuous supply of supplemented seawater. The strains exhibited high n-alkane-degrading activity, which indicated that the strains were important degraders of petroleum aliphatic hydrocarbons in tropical marine environments. Phylogenetic analyses based on 16S rRNA gene sequences of members of the Gammaproteobacteria showed that the isolates formed a coherent and distinct cluster in a stable lineage containing Oceanobacter kriegii IFO 15467T (96.4–96.5 % 16S rRNA gene sequence similarity) and Thalassolituus oleivorans MIL-1T. DNA G +C content was 53.0–53.1 mol%. The major fatty acids were C16 : 0, C16 : 1
ω7 and C18 : 1
ω9 and the hydroxy fatty acids were C12 : 0 3-OH and C10 : 0 3-OH. The polar lipids were phosphatidylglycerol, a ninhydrin-positive phospholipid(s) and glycolipids. The major quinone was Q-9 (97–99 %), which distinguished the isolates from Oceanobacter kriegii NBRC 15467T (Q-8; 91 %). On the basis of phenotypic, genotypic and chemotaxonomic data, including DNA–DNA hybridization, the isolates represent a novel genus and species, for which the name Oleibacter marinus gen. nov., sp. nov. is proposed. The type strain of Oleibacter marinus is 2O1T (=NBRC 105760T =BTCC B-675T).
Collapse
Affiliation(s)
- Maki Teramoto
- NITE Biotechnology Development Center (NBDC), National Institute of Technology and Evaluation (NITE), 2-5-8 Kazusakamatari, Kisarazu, Chiba 292-0818, Japan
| | - Motoyuki Ohuchi
- NITE Biotechnology Development Center (NBDC), National Institute of Technology and Evaluation (NITE), 2-5-8 Kazusakamatari, Kisarazu, Chiba 292-0818, Japan
| | - Ariani Hatmanti
- Research Center for Oceanography, Indonesian Institute of Sciences (LIPI), Jakarta Utara 14430, Indonesia
| | - Yeti Darmayati
- Research Center for Oceanography, Indonesian Institute of Sciences (LIPI), Jakarta Utara 14430, Indonesia
| | | | - Shigeaki Harayama
- NITE Biotechnology Development Center (NBDC), National Institute of Technology and Evaluation (NITE), 2-5-8 Kazusakamatari, Kisarazu, Chiba 292-0818, Japan
| | - Yukiyo Fukunaga
- NITE Biotechnology Development Center (NBDC), National Institute of Technology and Evaluation (NITE), 2-5-8 Kazusakamatari, Kisarazu, Chiba 292-0818, Japan
| |
Collapse
|
30
|
Valentine DL, Kessler JD, Redmond MC, Mendes SD, Heintz MB, Farwell C, Hu L, Kinnaman FS, Yvon-Lewis S, Du M, Chan EW, Garcia Tigreros F, Villanueva CJ. Propane respiration jump-starts microbial response to a deep oil spill. Science 2010; 330:208-11. [PMID: 20847236 DOI: 10.1126/science.1196830] [Citation(s) in RCA: 206] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The Deepwater Horizon event resulted in suspension of oil in the Gulf of Mexico water column because the leakage occurred at great depth. The distribution and fate of other abundant hydrocarbon constituents, such as natural gases, are also important in determining the impact of the leakage but are not yet well understood. From 11 to 21 June 2010, we investigated dissolved hydrocarbon gases at depth using chemical and isotopic surveys and on-site biodegradation studies. Propane and ethane were the primary drivers of microbial respiration, accounting for up to 70% of the observed oxygen depletion in fresh plumes. Propane and ethane trapped in the deep water may therefore promote rapid hydrocarbon respiration by low-diversity bacterial blooms, priming bacterial populations for degradation of other hydrocarbons in the aging plume.
Collapse
Affiliation(s)
- David L Valentine
- Department of Earth Science and Marine Science Institute, University of California, Santa Barbara, CA 93106, USA.
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
31
|
Occurrence, production, and export of lipophilic compounds by hydrocarbonoclastic marine bacteria and their potential use to produce bulk chemicals from hydrocarbons. Appl Microbiol Biotechnol 2010; 86:1693-706. [DOI: 10.1007/s00253-010-2515-5] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2010] [Revised: 02/15/2010] [Accepted: 02/18/2010] [Indexed: 10/19/2022]
|
32
|
Teramoto M, Suzuki M, Hatmanti A, Harayama S. The potential of Cycloclasticus and Altererythrobacter strains for use in bioremediation of petroleum-aromatic-contaminated tropical marine environments. J Biosci Bioeng 2010; 110:48-52. [PMID: 20541115 DOI: 10.1016/j.jbiosc.2009.12.008] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2009] [Revised: 12/18/2009] [Accepted: 12/18/2009] [Indexed: 11/29/2022]
Abstract
Cycloclasticus sp. A5, which has been suggested to be a major degrader of petroleum aromatics spilled in temperate seas, showed higher degrading activities for petroleum aromatics, at both 25 degrees C and tropical sea temperature 30 degrees C, than the novel aromatic-degrading isolates, related to Altererythrobacter epoxidivorans (97.5% similarity in the almost full-length 16S rRNA gene sequence) and Rhodovulum iodosum (96.3% similarity), obtained after enrichment on crude oil in a continuous supply of Indonesian seawater. Cycloclasticus A5 degraded petroleum aromatics at a similar rate or faster at 30 degrees C as compared to 25 degrees C, but its growth on acetate was severely inhibited at 30 degrees C. These results suggest that, although their abundance would be low in tropical seas not contaminated with aromatics, the Cycloclasticus strains could be major degraders of petroleum aromatics spilled in tropical seas. The 16S rRNA gene of the Cycloclasticus strains has been identified from Indonesian seawater, and the gene fragments showed 96.7-96.8% similarities to that of Cycloclasticus A5. Introducing Cycloclasticus A5 may be an ecologically advantageous bioremediation strategy for petroleum-aromatic-contaminated tropical seas because strain A5 would disappear at 30 degrees C after complete consumption of the aromatics. Altererythrobacter and Rhodovulum-related isolates grew well on pyruvate in 10% strength marine broth at 30 degrees C whereas Cycloclasticus A5 did not grow well on acetate in the broth at 30 degrees C. These growth results, along with its petroleum-aromatic-degrading activity, suggest that the Altererythrobacter isolate could be an important petroleum-aromatic degrader in and around nutrient-rich tropical marine environments.
Collapse
Affiliation(s)
- Maki Teramoto
- NITE Biotechnology Development Center, National Institute of Technology and Evaluation, 2-5-8 Kazusakamatari, Kisarazu, Chiba 292-0818, Japan.
| | | | | | | |
Collapse
|
33
|
Niepceron M, Portet-Koltalo F, Merlin C, Motelay-Massei A, Barray S, Bodilis J. Both Cycloclasticusâspp. and Pseudomonasâspp. as PAH-degrading bacteria in the Seine estuary (France). FEMS Microbiol Ecol 2010; 71:137-47. [DOI: 10.1111/j.1574-6941.2009.00788.x] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
|
34
|
Alonso-Gutiérrez J, Lekunberri I, Teira E, Gasol JM, Figueras A, Novoa B. Bacterioplankton composition of the coastal upwelling system of ‘Ría de Vigo’, NW Spain. FEMS Microbiol Ecol 2009; 70:493-505. [DOI: 10.1111/j.1574-6941.2009.00766.x] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
|
35
|
Oceanobacter-related bacteria are important for the degradation of petroleum aliphatic hydrocarbons in the tropical marine environment. Microbiology (Reading) 2009; 155:3362-3370. [DOI: 10.1099/mic.0.030411-0] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Petroleum-hydrocarbon-degrading bacteria were obtained after enrichment on crude oil (as a ‘chocolate mousse’) in a continuous supply of Indonesian seawater amended with nitrogen, phosphorus and iron nutrients. They were related to Alcanivorax and Marinobacter strains, which are ubiquitous petroleum-hydrocarbon-degrading bacteria in marine environments, and to Oceanobacter kriegii (96.4–96.5 % similarities in almost full-length 16S rRNA gene sequences). The Oceanobacter-related bacteria showed high n-alkane-degrading activity, comparable to that of Alcanivorax borkumensis strain SK2. On the other hand, Alcanivorax strains exhibited high activity for branched-alkane degradation and thus could be key bacteria for branched-alkane biodegradation in tropical seas. Oceanobacter-related bacteria became most dominant in microcosms that simulated a crude oil spill event with Indonesian seawater. The dominance was observed in microcosms that were unamended or amended with fertilizer, suggesting that the Oceanobacter-related strains could become dominant in the natural tropical marine environment after an accidental oil spill, and would continue to dominate in the environment after biostimulation. These results suggest that Oceanobacter-related bacteria could be major degraders of petroleum n-alkanes spilt in the tropical sea.
Collapse
|
36
|
Gertler C, Gerdts G, Timmis K, Yakimov M, Golyshin P. Populations of heavy fuel oil-degrading marine microbial community in presence of oil sorbent materials. J Appl Microbiol 2009; 107:590-605. [DOI: 10.1111/j.1365-2672.2009.04245.x] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
37
|
Alonso-Gutiérrez J, Figueras A, Albaigés J, Jiménez N, Viñas M, Solanas AM, Novoa B. Bacterial communities from shoreline environments (costa da morte, northwestern Spain) affected by the prestige oil spill. Appl Environ Microbiol 2009; 75:3407-18. [PMID: 19376924 PMCID: PMC2687268 DOI: 10.1128/aem.01776-08] [Citation(s) in RCA: 116] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2008] [Accepted: 03/26/2009] [Indexed: 11/20/2022] Open
Abstract
The bacterial communities in two different shoreline matrices, rocks and sand, from the Costa da Morte, northwestern Spain, were investigated 12 months after being affected by the Prestige oil spill. Culture-based and culture-independent approaches were used to compare the bacterial diversity present in these environments with that at a nonoiled site. A long-term effect of fuel on the microbial communities in the oiled sand and rock was suggested by the higher proportion of alkane and polyaromatic hydrocarbon (PAH) degraders and the differences in denaturing gradient gel electrophoresis patterns compared with those of the reference site. Members of the classes Alphaproteobacteria and Actinobacteria were the prevailing groups of bacteria detected in both matrices, although the sand bacterial community exhibited higher species richness than the rock bacterial community did. Culture-dependent and -independent approaches suggested that the genus Rhodococcus could play a key role in the in situ degradation of the alkane fraction of the Prestige fuel together with other members of the suborder Corynebacterineae. Moreover, other members of this suborder, such as Mycobacterium spp., together with Sphingomonadaceae bacteria (mainly Lutibacterium anuloederans), were related as well to the degradation of the aromatic fraction of the Prestige fuel. The multiapproach methodology applied in the present study allowed us to assess the complexity of autochthonous microbial communities related to the degradation of heavy fuel from the Prestige and to isolate some of their components for a further physiological study. Since several Corynebacterineae members related to the degradation of alkanes and PAHs were frequently detected in this and other supralittoral environments affected by the Prestige oil spill along the northwestern Spanish coast, the addition of mycolic acids to bioremediation amendments is proposed to favor the presence of these degraders in long-term fuel pollution-affected areas with similar characteristics.
Collapse
MESH Headings
- Alkenes/metabolism
- Bacteria/classification
- Bacteria/genetics
- Bacteria/isolation & purification
- Biodegradation, Environmental
- Biodiversity
- Cluster Analysis
- DNA Fingerprinting
- DNA, Bacterial/chemistry
- DNA, Bacterial/genetics
- DNA, Ribosomal/chemistry
- DNA, Ribosomal/genetics
- Electrophoresis, Polyacrylamide Gel
- Geologic Sediments/microbiology
- Hydrocarbons, Aromatic/metabolism
- Mineral Oil
- Molecular Sequence Data
- Nucleic Acid Denaturation
- Phylogeny
- RNA, Ribosomal, 16S/genetics
- Sequence Analysis, DNA
- Sequence Homology, Nucleic Acid
- Spain
- Water Pollution, Chemical
Collapse
|
38
|
Taketani RG, dos Santos HF, van Elsas JD, Rosado AS. Characterisation of the effect of a simulated hydrocarbon spill on diazotrophs in mangrove sediment mesocosm. Antonie van Leeuwenhoek 2009; 96:343-54. [PMID: 19468855 PMCID: PMC2729449 DOI: 10.1007/s10482-009-9351-6] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/01/2009] [Accepted: 05/12/2009] [Indexed: 02/01/2023]
Abstract
An analysis of the effect of an oil spill on mangrove sediments was carried out by contamination of mesocosms derived from two different mangroves, one with a history of contamination and one pristine. The association between N2 fixers and hydrocarbon degradation was assessed using quantitative PCR (qPCR) for the genes rrs and nifH, nifH clone library sequencing and total petroleum hydrocarbon (TPH) quantification using gas chromatography. TPH showed that the microbial communities of both mangroves were able to degrade the hydrocarbons added; however, whereas the majority of oil added to the mesocosm derived from the polluted mangrove was degraded in the 75 days of the experiment, there was only partially degradation in the mesocosm derived from the pristine mangrove. qPCR showed that the addition of oil led to an increase in rrs gene copy numbers in both mesocosms, having almost no effect on the nifH copy numbers in the pristine mangrove. Sequencing of nifH clones indicated that the changes promoted by the oil in the polluted mangrove were greater than those observed in the pristine mesocosm. The main effect observed in the polluted mesocosm was the selection of a single phylotype which is probably adapted to the presence of petroleum. These results, together with previous reports, give hints about the relationship between N2 fixation and hydrocarbon degradation in natural ecosystems.
Collapse
Affiliation(s)
- Rodrigo Gouvêa Taketani
- Laboratório de Ecologia Microbiana Molecular, Instituto de Microbiologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil.
| | | | | | | |
Collapse
|
39
|
Wang B, Lai Q, Cui Z, Tan T, Shao Z. A pyrene-degrading consortium from deep-sea sediment of the West Pacific and its key memberCycloclasticussp. P1. Environ Microbiol 2008; 10:1948-63. [DOI: 10.1111/j.1462-2920.2008.01611.x] [Citation(s) in RCA: 155] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
40
|
Cui Z, Lai Q, Dong C, Shao Z. Biodiversity of polycyclic aromatic hydrocarbon-degrading bacteria from deep sea sediments of the Middle Atlantic Ridge. Environ Microbiol 2008; 10:2138-49. [PMID: 18445026 PMCID: PMC2702504 DOI: 10.1111/j.1462-2920.2008.01637.x] [Citation(s) in RCA: 118] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The bacteria involved in the biodegradation of polycyclic aromatic hydrocarbons (PAHs) in deep sea subsurface environments are largely unknown. In order to reveal their biodiversity, sediments from 2.2 m under the bottom surface at a water depth of 3542 m were sampled on the Middle Atlantic Ridge with a gravity column sampler. The sediments were promptly enriched with either crude oil or a mixture of PAHs (naphthalene, phenanthrene and pyrene) as the sole carbon source, and further enriched with the PAH mixture mentioned above in the lab. The resulting consortia were named C2CO and C2PPN respectively. Their bacterial composition was analysed with plate cultivation, PCR-DGGE and 16S rDNA library analysis. On plates, isolates belonging to Pseudoalteromonas, Halomonas, Marinobacter, Thalassospira and Tistrella dominated the culturable populations. With PCR-DGGE, five major bands closely related to Cycloclasticus, Alteromonas, Thalassospira, Alcanivorax and Rhodospirillaceae were detected in consortium C2CO, while only one major band of Cycloclasticus was detected in consortium C2PPN. In addition, the dynamics of community structure in response to aromatic substrate alterations were examined. As a result, three ribotypes of Cycloclasticus were detected by 16S rDNA library analysis, one which played a key role in phenanthrene degradation; two Alteromonas bacteria dominated the naphthalene reselected consortium. Although bacteria of the two genera grew as the main members of the communities, none of them were isolated, probably owing to their poor cultivability. These results confirm that bacteria of Cycloclasticus are important obligate PAH degraders in marine environments, and coexist with other degrading bacteria that inhabit the deep subsurface sediment of the Atlantic. This supports the view that PAH accumulation and bioattenuation occur in remote areas consistently and continuously.
Collapse
Affiliation(s)
- Zhisong Cui
- Key Laboratory of Marine Biogenetic Resources, The Third Institute of Oceanography, State Oceanic Administration, Xiamen 361005, Fujian, China
| | | | | | | |
Collapse
|
41
|
Lozada M, Riva Mercadal JP, Guerrero LD, Di Marzio WD, Ferrero MA, Dionisi HM. Novel aromatic ring-hydroxylating dioxygenase genes from coastal marine sediments of Patagonia. BMC Microbiol 2008; 8:50. [PMID: 18366740 PMCID: PMC2364624 DOI: 10.1186/1471-2180-8-50] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2007] [Accepted: 03/25/2008] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Polycyclic aromatic hydrocarbons (PAHs), widespread pollutants in the marine environment, can produce adverse effects in marine organisms and can be transferred to humans through seafood. Our knowledge of PAH-degrading bacterial populations in the marine environment is still very limited, and mainly originates from studies of cultured bacteria. In this work, genes coding catabolic enzymes from PAH-biodegradation pathways were characterized in coastal sediments of Patagonia with different levels of PAH contamination. RESULTS Genes encoding for the catalytic alpha subunit of aromatic ring-hydroxylating dioxygenases (ARHDs) were amplified from intertidal sediment samples using two different primer sets. Products were cloned and screened by restriction fragment length polymorphism analysis. Clones representing each restriction pattern were selected in each library for sequencing. A total of 500 clones were screened in 9 gene libraries, and 193 clones were sequenced. Libraries contained one to five different ARHD gene types, and this number was correlated with the number of PAHs found in the samples above the quantification limit (r = 0.834, p < 0.05). Overall, eight different ARHD gene types were detected in the sediments. In five of them, their deduced amino acid sequences formed deeply rooted branches with previously described ARHD peptide sequences, exhibiting less than 70% identity to them. They contain consensus sequences of the Rieske type [2Fe-2S] cluster binding site, suggesting that these gene fragments encode for ARHDs. On the other hand, three gene types were closely related to previously described ARHDs: archetypical nahAc-like genes, phnAc-like genes as identified in Alcaligenes faecalis AFK2, and phnA1-like genes from marine PAH-degraders from the genus Cycloclasticus. CONCLUSION These results show the presence of hitherto unidentified ARHD genes in this sub-Antarctic marine environment exposed to anthropogenic contamination. This information can be used to study the geographical distribution and ecological significance of bacterial populations carrying these genes, and to design molecular assays to monitor the progress and effectiveness of remediation technologies.
Collapse
Affiliation(s)
- Mariana Lozada
- Centro Nacional Patagónico (CENPAT-CONICET), Boulevard Brown 2825, Puerto Madryn (9120), Chubut, Argentina.
| | | | | | | | | | | |
Collapse
|
42
|
Miralles G, Nérini D, Manté C, Acquaviva M, Doumenq P, Michotey V, Nazaret S, Bertrand JC, Cuny P. Effects of spilled oil on bacterial communities of mediterranean coastal anoxic sediments chronically subjected to oil hydrocarbon contamination. MICROBIAL ECOLOGY 2007; 54:646-61. [PMID: 17334965 DOI: 10.1007/s00248-007-9221-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2007] [Revised: 01/15/2007] [Accepted: 01/22/2007] [Indexed: 05/14/2023]
Abstract
The effects of spilled oil on sedimentary bacterial communities were examined in situ at 20 m water depth in a Mediterranean coastal area. Sediment collected at an experimental site chronically subjected to hydrocarbon inputs was reworked into PVC cores with or without a massive addition of crude Arabian light oil ( approximately 20 g kg(-1) dry weight). Cores were reinserted into the sediment and incubated in situ at the sampling site (20 m water depth) for 135 and 503 days. The massive oil contamination induced significant shifts in the structure of the indigenous bacterial communities as shown by ribosomal intergenic spacer analysis (RISA). The vertical heterogeneity of the bacterial communities within the sediment was more pronounced in the oiled sediments particularly after 503 days of incubation. Response to oil of the deeper depth communities (8-10 cm) was slower than that of superficial depth communities (0-1 and 2-4 cm). Analysis of the oil composition by gas chromatography revealed a typical microbial alteration of n-alkanes during the experiment. Predominant RISA bands in oiled sediments were affiliated to hydrocarbonoclastic bacteria sequences. In particular, a 395-bp RISA band, which was the dominant band in all the oiled sediments for both incubation times, was closely related to hydrocarbonoclastic sulfate-reducing bacteria (SRB). These bacteria may have contributed to the main fingerprint changes and to the observed biodegradation of n-alkanes. This study provides useful information on bacterial dynamics in anoxic contaminated infralittoral sediments and highlights the need to assess more precisely the contribution of SRB to bioremediation in oil anoxic contaminated areas.
Collapse
Affiliation(s)
- Gilles Miralles
- Laboratoire de Microbiologie, de Géochimie et d'Ecologie Marines, CNRS-UMR 6117, Centre d'Océanologie de Marseille, Cedex 9, Case 901, Campus de Luminy, Marseille, 13288, France
| | | | | | | | | | | | | | | | | |
Collapse
|
43
|
Jiménez N, Viñas M, Bayona JM, Albaiges J, Solanas AM. The Prestige oil spill: bacterial community dynamics during a field biostimulation assay. Appl Microbiol Biotechnol 2007; 77:935-45. [PMID: 17943279 DOI: 10.1007/s00253-007-1229-9] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2007] [Revised: 09/26/2007] [Accepted: 09/26/2007] [Indexed: 11/29/2022]
Abstract
A field bioremediation assay using the oleophilic fertilizer S200 was carried out 12 months after the Prestige heavy fuel-oil spill on a beach on the Cantabrian coast (north Spain). This assay showed that S200-enhanced oil degradation, particularly of high-molecular-weight n-alkanes and alkylated PAHs, suggesting an increase in the microbial bioavailability of these compounds. The bacterial community structure was determined by cultivation-independent analysis of polymerase chain reaction-amplified 16S rDNA by denaturing gradient gel electrophoresis. Bacterial community was mainly composed of alpha-Proteobacteria (Rhodobacteriaceae and Sphingomonadaceae). Representatives of gamma-Proteobacteria (Chromatiales, Moraxellaceae, and Halomonadaceae), Bacteroidetes (Flavobacteriaceae), and Actinobacteria group (Nocardiaceae and Corynebacteriaceae) were also found. The addition of the fertilizer led to the appearance of the bacterium Mesonia algae in the early stages, with a narrow range of growth substrates, which has been associated with the common alga Achrosiphonia sonderi. The presence of Mesonia algae may be attributable to the response of the microbial community to the addition of N and P rather than indicating a role in the biodegradation process. The Rhodococcus group appeared in both assay plots, especially at the end of the experiment. It was also found at another site on the Galician coast that had been affected by the same spill. This genus has been associated with the degradation of n-alkanes up to C(36). Taking into account the high content of heavy alkanes in the Prestige fuel, these microorganisms could play a significant role in the degradation of such fuel. A similar bacterial community structure was observed at another site that showed a similar degree of fuel weathering.
Collapse
Affiliation(s)
- Núria Jiménez
- Department of Microbiology, University of Barcelona, Diagonal, 645, 08028, Barcelona, Spain
| | | | | | | | | |
Collapse
|
44
|
Teira E, Lekunberri I, Gasol JM, Nieto-Cid M, Alvarez-Salgado XA, Figueiras FG. Dynamics of the hydrocarbon-degrading Cycloclasticus bacteria during mesocosm-simulated oil spills. Environ Microbiol 2007; 9:2551-62. [PMID: 17803779 DOI: 10.1111/j.1462-2920.2007.01373.x] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We used catalysed reported deposition - fluorescence in situ hybridization (CARD-FISH) to analyse changes in the abundance of the bacterial groups Alphaproteobacteria, Gammaproteobacteria and Bacteroidetes, and of hydrocarbon-degrading Cycloclasticus bacteria in mesocosms that had received polycyclic aromatic hydrocarbons (PAHs) additions. The effects of PAHs were assessed under four contrasting hydrographic conditions in the coastal upwelling system of the Rías Baixas: winter mixing, spring bloom, summer stratification and autumn upwelling. We used realistic additions of water soluble PAHs (approximately 20-30 microg l(-1) equivalent of chrysene), but during the winter period we also investigated the effect of higher PAHs concentrations (10-80 microg l(-1) chrysene) on the bacterial community using microcosms. The most significant change observed was a significant reduction (68 +/- 5%) in the relative abundance of Alphaproteobacteria. The magnitude of the response of Cycloclasticus bacteria (positive with probe CYPU829) to PAHs additions varied depending on the initial environmental conditions, and on the initial concentration of added PAHs. Our results clearly show that bacteria of the Cycloclasticus group play a major role in low molecular weight PAHs biodegradation in this planktonic ecosystem. Their response was stronger in colder waters, when their background abundance was also higher. During the warm periods, the response of Cycloclasticus was limited, possibly due to both, a lower bioavailability of PAHs caused by abiotic factors (solar radiation, temperature), and by inorganic nutrient limitation of bacterial growth.
Collapse
Affiliation(s)
- Eva Teira
- Departamento de Ecoloxía e Bioloxía Animal, Universidade de Vigo, Vigo, Spain.
| | | | | | | | | | | |
Collapse
|
45
|
Yakimov MM, Timmis KN, Golyshin PN. Obligate oil-degrading marine bacteria. Curr Opin Biotechnol 2007; 18:257-66. [PMID: 17493798 DOI: 10.1016/j.copbio.2007.04.006] [Citation(s) in RCA: 442] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2007] [Revised: 03/18/2007] [Accepted: 04/30/2007] [Indexed: 11/17/2022]
Abstract
Over the past few years, a new and ecophysiologically unusual group of marine hydrocarbon-degrading bacteria - the obligate hydrocarbonoclastic bacteria (OHCB) - has been recognized and shown to play a significant role in the biological removal of petroleum hydrocarbons from polluted marine waters. The introduction of oil or oil constituents into seawater leads to successive blooms of a relatively limited number of indigenous marine bacterial genera--Alcanivorax, Marinobacter, Thallassolituus, Cycloclasticus, Oleispira and a few others (the OHCB)--which are present at low or undetectable levels before the polluting event. The types of OHCB that bloom depend on the latitude/temperature, salinity, redox and other prevailing physical-chemical factors. These blooms result in the rapid degradation of many oil constituents, a process that can be accelerated further by supplementation with limiting nutrients. Genome sequencing and functional genomic analysis of Alcanivorax borkumensis, the paradigm of OHCB, has provided significant insights into the genomic basis of the efficiency and versatility of its hydrocarbon utilization, the metabolic routes underlying its special hydrocarbon diet, and its ecological success. These and other studies have revealed the potential of OHCB for multiple biotechnological applications that include not only oil pollution mitigation, but also biopolymer production and biocatalysis.
Collapse
|
46
|
Cuny P, Miralles G, Cornet-Barthaux V, Acquaviva M, Stora G, Grossi V, Gilbert F. Influence of bioturbation by the polychaete Nereis diversicolor on the structure of bacterial communities in oil contaminated coastal sediments. MARINE POLLUTION BULLETIN 2007; 54:452-9. [PMID: 17254615 DOI: 10.1016/j.marpolbul.2006.12.008] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2006] [Accepted: 12/03/2006] [Indexed: 05/13/2023]
Abstract
Patterns of change in the structure of bacterial communities monitored by ribosomal intergenic spacer analysis (RISA) in oil contaminated sediments inhabited or not by the marine polychaete Nereis diversicolor were studied during 45 days under laboratory conditions. Results supported by principal component analysis showed a marked response of the bacterial communities to the oil contamination and to the presence of N. diversicolor. Phylogenetic affiliation of specific RISA bands showed that, in the contaminated sediments, the presence of the marine polychaetes favoured the development of bacteria which may play an active role in natural bioremediation processes of oil polluted environments.
Collapse
Affiliation(s)
- Philippe Cuny
- Laboratoire de Microbiologie, Géochimie et Ecologie Marines, UMR CNRS 6117, Campus de Luminy, Case 901, F-13288 Marseille Cedex 9, France.
| | | | | | | | | | | | | |
Collapse
|
47
|
Abstract
Hundreds of millions of litres of petroleum enter the environment from both natural and anthropogenic sources every year. The input from natural marine oil seeps alone would be enough to cover all of the world's oceans in a layer of oil 20 molecules thick. That the globe is not swamped with oil is testament to the efficiency and versatility of the networks of microorganisms that degrade hydrocarbons, some of which have recently begun to reveal the secrets of when and how they exploit hydrocarbons as a source of carbon and energy.
Collapse
Affiliation(s)
- Ian M Head
- School of Civil Engineering and Geosciences, University of Newcastle upon Tyne, Newcastle upon Tyne NE1 7RU, UK.
| | | | | |
Collapse
|
48
|
Abstract
Although diverse bacteria capable of degrading petroleum hydrocarbons have been isolated and characterized, the vast majority of hydrocarbon-degrading bacteria, including anaerobes, could remain undiscovered, as a large fraction of bacteria inhabiting marine environments are uncultivable. Using culture-independent rRNA approaches, changes in the structure of microbial communities have been analyzed in marine environments contaminated by a real oil spill and in micro- or mesocosms that mimic such environments. Alcanivorax and Cycloclasticus of the gamma-Proteobacteria were identified as two key organisms with major roles in the degradation of petroleum hydrocarbons. Alcanivorax is responsible for alkane biodegradation, whereas Cycloclasticus degrades various aromatic hydrocarbons. This information will be useful to develop in situ bioremediation strategies for the clean-up of marine oil spills.
Collapse
Affiliation(s)
- Shigeaki Harayama
- Department of Biotechnology, National Institute of Technology and Evaluation, 2-5-8 Kazusakamatari, Kisarazu, Chiba 292-0818, Japan.
| | | | | |
Collapse
|