Physiologic and genomic diversity of marine archaea

Physiologic and genomic diversity of marine archaea

Collaborators: Chris Dupont (JCVI), Mak Saito (WHOI)

Funding: NSF Biological Oceanography

A major focus of our lab is the cultivation of previously uncultured marine archaea.  Enrichment cultures of archaea that can carry out the first step of nitrification by oxidizing ammonia (NH3) to nitrite (NO2-) are a powerful tool for learning about what controls this process in the environment, how ammonia-oxidizing archaea interact with other microorganisms, and understanding the evolution of ammonia oxidation. Our lab houses a unique culture collection of ammonia-oxidizing archaea from the open ocean. We have used the cultures to describe the stable isotopic signature of nitrite produced by archaea and to show that they can produce the greenhouse gas nitrous oxide (N2O). We are using a combination of molecular techniques (including genomics, transcriptomics, and proteomics) and traditional physiology to understand how these archaea have expanded to become such ubiquitous and abundant members of the microbial world.

Thanks to Paul Carini for pointing out this recent Nature editorial about the importance of microbial cultivation.

A story about marine archaea and our research written for non-scientists recently appeared on Science News for Students.

 

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Ride booking giant uber launches in hobart, bhutan, and korea

Ride booking giant uber launches in hobart, bhutan, and korea

The RideBahn train service in the United States will start in two cities this summer, with the first service starting next week in Hobart, Australia, and the next service scheduled to arrive in Seoul, Korea in October 20카지노 사이트17.

The train will operate as an off-peak service between Toronto (TTC) and Hobart on weekdays, and from Hobart to Singapore in the evenings. The service will also operate from Hobart to Toronto in other ways, including off-peak departures (such as to Sydney, Sydney via Bora Bora, or between Bora Bora via Dubai), and occasional special departures (such as for a night on the Town of Bathurst, to Stoney Creek in B.C.)

The trip will be booked on the “Fly to Canada” website. A list of train stations and times is also online at: ww바카라w.ridebahn.com/train.

About ridebahn.co바카라m: RideBahn is a company, created in November 2004 and headquartered in London, England, that offers transportation on demand (tram) by ride-sharing service. The network offers an extensive range of rail and bus options for those looking to go off-road and enjoy the great outdoors.