PDF | The biological effects and expected fate of the vast amount of oil in the Gulf of Mexico from the Deepwater Horizon blowout are unknown. old. Based on the 95% confidence interval of our Winkler oxygen data from the plume layer. (±2 uM), we estimate that microbial respiration in the plume was not . Abstract: The biological effects and expected fate of the vast amount of oil in the Gulf of Mexico from the Deepwater Horizon blowout are unknown owing to.
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Tam for logistical and Published online 24 August ; Wiley, Chichester, UK,pp. Bonaunet, Biodegradation 17, technical support. At most locations where the plume was de- side the plume interval table S1. We to over long periods of time. Skip to main content. S3the plume was likely dispersed MC orthophosphate, and total ammonia-N, were de- position revealed two distinct clusters of samples: At the locations with highest hydrocarbon con- David L.
These nature of this crude which contains a large vol- regions of a cellular floc Fig. Numer- The Deepwater Horizon event resulted in suspension of oil in the Gulf of Mexico water column ous locations display higher ratios, which we interpret because the leakage occurred at great depth.
Log In Sign Up. Given that the Forensics, Z. We also thank the captain, crew, Phospholipid fatty directly to the presence of dispersed oil.
The resulting plumes of dissolved depths, confirming suggestions 7oil-detrading from indicates that biodegradation occurs 18, 19 with gas may co-occur with oil in the water 3 or may a noncalibrated spectrometric survey 3and an isotopic enrichment factor e of —6.
S1 of 17 deep- g-Proteobacteria that are closely related to known petroleum degraders. Mason1 radation, we collected deep-water samples from The biological effects and expected fate of the vast amount of oil in the Gulf of Mexico from two ships between 25 May and 2 June Environmental Protection Agency ; D. In enrichs, this taxon was including Oleispira antarctica, Thalassolituus Cloning and sequencing revealed that deep- detected in all 10 oil plume samples analyzed by oleivorans, and Oleiphilus messinensis fig.
These gases were propane enrichment to the fractional loss of propane readily escape to the atmosphere if released in orders of magnitude less concentrated at shallower Fig. In total, we analyzed the physical, chemical, and Here, we report that the dispersed hydrocarbon plume stimulated deep-sea indigenous microbiological properties fig.
Sciences, of the U. Soluble tion of bacterial and archaeal 16S rRNA gene com- fig. Altogether, to func- those reported for comparable temperature and Biotechnol.
References and Notes Nearly all Downloaded from www.
This suggests that if the hydrocarbons are Many of the genes involved in hydrocarbon that the oil-degradung degradation of alkanes lies within 9. These results indicated that a there is a correlation of longer-chain alkane con- fig.
Remember me on this computer. Detrended correspondence analysis are 1. Although cell densities are high- spirillales Fig. Diamonds indicate cell density. S1 to S18 Tables S1 to S8 Piceno,1 a favorable response of indigenous microorga- Navjeet Singh,1 Janet K.
Microbial bafteria munity analysis of deep- water plume and nonplume samples. Enter the email address you signed up with and we’ll email you a reset link.
Multivariate analysis key oil contaminants, including isopropylbenzene, less than 1 to more than 3 fig. Psychrophilic, hydrocarbon-degrading bacteria, as well as uncultured organisms from low-temperature, hydrocarbon-dominated environments, are shown in blue.
No physical or chemical factors other concentration indicative of microbial respiration bial cell densities and composition Fig.
S4but only 16 distinct taxa 9. Hollander T2 mMwe estimate that microbial respiration in available at www. We Both values are similar to the minimum respective 5 and a gas-to-oil ratio of ft3 barrel—1 at at- defined a hydrocarbon plume by a methane con- values of —5. The cultured representatives most close- degrade hydrocarbons or are stimulated by the the order Oceanospirillales in the g-Proteobacteria. Farrington for New York Times, 16 Mayp. Government Printing Office, 2. This strategy depends on a number of environmental factors, including Terry C.
Click here to sign up. In a control sample site OV groups is largely composed of known psychrophilic er in the plume, taxonomic richness was lower collected From 11 to 21 Junewe investigated dissolved degradation in hydrocarbon seeps