Navigation Links
Gulf oil spill researcher: Bacteria ate some toxins, but worst remain

TALLAHASSEE, Fla. A Florida State University researcher found that bacteria in the Gulf of Mexico consumed many of the toxic components of the oil released during the Deepwater Horizon spill in the months after the spill, but not the most toxic contaminants.

In two new studies conducted in a deep sea plume, Assistant Professor Olivia Mason found a species of bacteria called Colwellia likely consumed gaseous hydrocarbons and perhaps benzene, toluene, ethylbenzene and xylene compounds that were released as part of the oil spill.

But, her research also showed that bacteria did not consume the most toxic parts of the oil spill in the water column plume or in the oil that settled on the seafloor.

The most toxic contaminants are called polycyclic aromatic hydrocarbons or PAHs. PAHs are a group of semi-volatile organic compounds that are present in crude oil and can cause long-term health problems such as cancer.

"Those PAHs could persist for a long time, particularly if they are buried in the ocean floor where lack of oxygen would slow PAH degradation by microorganisms," Mason said. "They're going to persist in the environment and have deleterious effects on whatever is living in the sediment."

When the Deepwater Horizon spill occurred, more than 4 million barrels of oil spilled into the Gulf of Mexico. Some of that oil has never been accounted for, and thus has unknown environmental and health consequences for the region.

Mason and colleagues investigated the oil deposits on 64 sediment samples in different areas around the oil wellhead.

To understand the functional capacity of the microorganisms to degrade oil, microbial DNA was sequenced in 14 of those samples. Of those 14, seven of the samples were so contaminated with PAHs that they exceeded the U.S. Environmental Protection Agency's water quality benchmarks for aquatic life.


Contact: Kathleen Haughney
Florida State University

Page: 1

Related biology news :

1. Crabs, insects and spiders vulnerable to oil spill, but also resilient
2. University of Houston study shows BP oil spill hurt marshes, but recovery possible
3. Researchers call for a new direction in oil spill research
4. Marine scientists urge government to reassess oil spill response
5. NCEAS researchers offer new ecological model for deep-water oil spills
6. Microbial communities shifted dramatically after Deepwater Horizon spill
7. BP Deepwater Horizon oil spill exacerbated existing environmental problems in Louisiana marshes
8. Spillways can divert sand from river to rebuild wetlands
9. New oil spill dispersant made from ingredients in peanut butter, chocolate, ice cream
10. At least 200,000 tons of oil and gas from Deepwater Horizon spill consumed by gulf bacteria
11. Research, response for future oil spills: Lessons learned from Deepwater Horizon
Post Your Comments:
(Date:6/3/2016)... , June 3, 2016 ... von Nepal hat ... Lieferung hochsicherer geprägter Kennzeichen, einschließlich Personalisierung, Registrierung ... in der Produktion und Implementierung von Identitätsmanagementlösungen. ... Ausschreibung im Januar teilgenommen, aber Decatur wurde ...
(Date:6/2/2016)...   The Weather Company , an IBM Business (NYSE: ... capability in which consumers will be able to interact with ... via voice or text and receive relevant information about the ... Marketers have long sought an advertising solution that can create ... relevant and valuable; and can scale across millions of interactions ...
(Date:6/1/2016)... -- Favorable Government Initiatives Coupled With Implementation ... to Boost Global Biometrics System Market Through 2021  ... " Global Biometrics Market By Type, By End ... - 2021", the global biometrics market is projected to ... growing security concerns across various end use sectors such ...
Breaking Biology News(10 mins):
(Date:6/27/2016)... 27, 2016  Liquid Biotech USA ... of a Sponsored Research Agreement with The University ... (CTCs) from cancer patients.  The funding will be ... correlate with clinical outcomes in cancer patients undergoing ... then be employed to support the design of ...
(Date:6/24/2016)... ... ... Researchers at the Universita Politecnica delle Marche in Ancona combed medical journal articles ... findings are the subject of a new article on the Surviving Mesothelioma website. ... blood, lung fluid or tissue of mesothelioma patients that can help point doctors to ...
(Date:6/23/2016)... , June 23, 2016 A person commits ... the crime scene to track the criminal down. ... U.S. Food and Drug Administration (FDA) uses DNA evidence to ... Sound far-fetched? It,s not. The FDA has ... to support investigations of foodborne illnesses. Put as simply as ...
(Date:6/23/2016)...   EpiBiome , a precision microbiome engineering company, ... financing from Silicon Valley Bank (SVB). The financing will ... its drug development efforts, as well as purchase additional ... has been an incredible strategic partner to us – ... would provide," said Dr. Aeron Tynes Hammack , ...
Breaking Biology Technology: