Marine methane consumed by consortia of bacteria

University Park, Pa. Methane consuming archaeobacteria and sulfate-reducing bacteria, acting together, are responsible for consuming most of the methane in the world's oceans, according to a team of microbiologists and geoscientists.

"Past research had shown that there is a consortia of these two very different single-celled organisms, and indirect tests indicated they might be the source of methane consumption," said Dr. Christopher H. House, assistant professor of geosciences at Penn State. "We decided to directly test if these organisms are responsible."

The research team explains their approach in today's (July 20) issue of the journal Science. Research team members Victoria J. Orphan, graduate student, and Dr. Edward F. Delong, chair of the science department at Monterey Bay Aquarium Research Institute, were responsible for identifying the organisms in the consortia. The sulfate-reducing bacteria, Desulfosarcina, and the methane-consuming archaeobacteria, Methanosarcinales, were tagged with flouresent dyes that attach only to individually specific genetic material. In this way, one dye attached to the Desulfosarcina and another, of a different color, attached to the Methanosarcinales. Investigation under flourescent light showed the sulfate-eaters surrounding the methane eaters in an aggregated clump about the diameter of the width of a human hair.

"To determine that these aggregates were responsible for the methane consumption, we had to test the organisms to see which carbon isotopes were incorporated into the cells," says House at Penn State.

House and Orphan, working with Dr. Kevin D. McKeegan, professor of Earth and space sciences, University of California, Los Angeles, employed an ion probe that uses cesium ions focused to a very small spot to slowly erode the cells for study. The probe allowed samples of the carbon from the consortia to be tested, beginning with the outer cells and then tunnelling toward the middl

Contact: A'ndrea Elyse Messer
Penn State

Page: 1 2

Related biology news :

1. Hopkins Marine Station honored by the American Society for Microbiology
2. Marine disease on the rise?
3. Five Marine Conservation leaders receive worlds top award from Pew Institute for Ocean Science
4. Marine sponges provide model for nanoscale materials production
5. Marine scientists discover nutrient pollution boosts fungi, bacteria killing Caribbean reefs
6. Marine pathogens spread much faster than their terrestrial counterparts
7. How many fish in the sea? Census of Marine Life launches first report
8. Marine biologists probe black box mysteries of the sea
9. Marine reserves cant do it all: Sea otters vs. red abalone
10. Marine biodiversity essential to preserving species
11. Marine researchers explore sediment highways

Post Your Comments:

(Date:7/18/2020)... ... ... Commercial launch readiness is a critical stage in a product life cycle. While ... global economic downturn will only increase price pressures overall for the industry. The era ... from every product launch is critical. However, history shows that only a third of ...
(Date:7/2/2020)... ... 01, 2020 , ... AltruBio Inc. http://www.altrubio.com , a ... for the treatment of steroid-refractory acute graft-versus-host disease (SR-aGVHD), at European Hematology Association ... of the Fred Hutchinson Cancer Research Center, this single-arm, open-label Phase 1 single ...
(Date:6/28/2020)... ... June 25, 2020 , ... Genedata, ... that it has entered into a multi-year contract with Merus N.V., a ... translational and clinical research strategy to discover and develop ground-breaking drugs. The ...
Breaking Biology News(10 mins):
(Date:7/31/2020)... Mass. (PRWEB) , ... July 29, 2020 , ... ... wire that can combine up to three different materials for use with CRM, ... combine up to three materials to meet specific design requirements, performance, and cost ...
(Date:7/31/2020)... ... July 30, 2020 , ... ... today announced the release of its signature product called Beacon - a ... and other field medical professionals. , Beacon helps MSLs streamline communication ...
(Date:7/18/2020)... ... July 16, 2020 , ... ... the early detection and prevention of high-burden diseases, and Centric Consulting, a business ... healthcare organizations to utilize existing data in order to identify and prioritize patients ...
(Date:7/10/2020)... ... 2020 , ... In most research using the zebrafish model, ... in zebrafish embryos, maintaining optical transparency to facilitate microscopic imaging. Over the past ... the zebrafish model to investigate the causes of leukaemia and its relationship with ...
Breaking Biology Technology:
Cached News: