Michigan Geomicrobiology Lab


Gregory J. Dick
Associate Professor
Deptartment of Earth and Environmental Sciences

Department of Ecology and Evolutionary Biology

Affiliate Faculty Member
Center for Computational Medicine
and Bioinformatics

Faculty Associate
Program in the Environment

office: 2014 CC Little
ph: (734) 763-3228
fax: (734) 763-4690

Dept. of Earth & Environmental Sciences
2534 CC Little Bldg
1100 North University Ave
Ann Arbor, MI 48109-1005

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Group News
5/19/2014 -- Greg is promoted to Associate Professor with tenure! Thanks to all the students, postdocs, and staff who made this possible!
5/16/2014 -- New paper in Science shows that deep-sea viruses carry genes for sulfur oxidation. Excellent work Karthik!
5/8/2014 -- "Lab Meeting" at a Tigers game! We are celebrating the completion of Meng Li's postdoc and his new position as Assistant Professor at the Institute for Advanced Study, Shenzhen University
5/5/2014 -- Moore Foundation Marine Microbiology Initative synthesis meeting. The whole team got together in Ann Arbor to summarize and reflect on what we learned.

From left: Sunit Jain, Houshuo Jiang, Jon Kaye, Meng Li, Daniel Reed, Cody Sheik, Brandy Toner, Greg Dick, Chip Breier, Brandi Kamermans, Rebecca Sims, Brett Baker, Chris Klausmeier
3/28/14 -- Karthik Anantharaman successfully defends his PhD dissertation! "Geomicrobiology of hydrothermal plumes: elucidating the role of microorganisms in deep ocean carbon and sulfur biogeochemical cycles". Karthik now moves on to a postdoc in Jill Banfield's lab. Congratulations Karthik!
1/20/14 -- Alex Voorhies successfully defends his PhD dissertation! "Investigation of microbial interactions and ecosystem dynamics in a low O2 cyanobacterial mat". Congratulations Alex!
October, 2013 - lab party!

Bottom from left: Karthik Anantharaman, Brett Baker, Meng Li, Dan Marcus. Top from left: Melissa Duhaime, Gabriel Vargas, Daniel Reed, Sunit Jain, Alex Voorhies, Greg Dick, Cody Sheik, Lauren Kinsman-Costell, Paul DenUyl

5/30/2013 - Cody cruises to the Mid Cayman Rise on R/V Falcor. He will be sampling hydrothermal plumes for microbes and viruses. Follow him on twitter or via the cruise blog here!

5/23/2013 - New paper on heterotrophy and nitrite oxidation in deep-sea hydrothermal plumes in The ISME Journal. Congrats Brett!

This work was supported by The Gordon and Betty Moore Foundation and the National Science Foundation Biological Oceanography Program.


5/21/2013 - New paper on hydrothermal plume microbiology in Frontiers in Microbiology.

This work was supported by The Gordon and Betty Moore Foundation and the National Science Foundation Biological Oceanography Program.

2/24/2013 - Greg is named a Alfred P. Sloan Research Fellow in Ocean Sciences.
February 2013 - Sunit gets married! Dan and Kathryn make the trip to India. Congrats Sunit!


January 2013 - New paper in PNAS: Evidence for hydrogen oxidation and metabolic plasticity in widespread deep-sea sulfur-oxidizing bacteria. Congratulations Karthik!

This work was supported by The Gordon and Betty Moore Foundation and the National Science Foundation Biological Oceanography Program.



6/14/2012 - Two new papers on the metatranscriptome of deep-sea hydrotheraml plumes available online at The ISME Journal. We find that Guaymas Basin plumes are dominated by water column methanotrophs and lithotrophs, including ammonia-oxidizing Archaea. Congrats to Brett and Ryan!

This work was supported by The Gordon and Betty Moore Foundation and the National Science Foundation Biological Oceanography Program.





3/13/12 - New paper in Nature Education: Underwater sinkholes are habitats for ancient microbial life.


3/12/12 - New paper in Geobiology: genomics and function of cyanobacterial mats at low oxygen. Congrats to Alex on his first first-author paper! Photo at right shows the mats in Lake Huron sinkhole, by Tane Casserly, NOAA-TBNMS.

This work was supported by the NSF Geobiology & Low-Temperature Geochemistry Program.


January, 2012 - Research cruise the Mid-Cayman Rise. Fantastic samples collected from rising hydrothermal plumes at the deepest known deep-sea vents.

This work is supported by the Gordon and Betty Moore Foundation Marine Microbiology Initiative.


11/1/2011 - Daniel Reed joins the lab!


Daniel is a postdoc modeling microbial and biogeochemical processes in deep-sea hydrothermal plumes.


10/1/11 - Meng Li joins the lab!


Meng is a postdoc working on methanotrophs in deep-sea hydrothermal plumes.


7/17/11 - Going away party for Ryan and Kathryn. Ryan starts grad school at USC and Kathryn heads to Pat Schloss's lab. Good luck guys!


7/15/11 - Sinkholes project featured in Earth Magazine


7/1/11 - Cody Sheik joins the lab!

Cody is a postdoc working work on the microbial diversity of deep-sea hydrothermal vent plumes.  

6/7/11 - sinkhole field work: first night dive! Thanks to the NOAA-TBNMS crew for excellent sampling!


11/1/10 - new project on deep-sea hydrothermal vents

This work will explore the interplay between microbiology and geochemistry in rising plumes at deep-sea hydrothermal vents.  

9/1/10 - Brett Baker joins the lab!


6/13/10 - Goldschmidt 2010, Knoxville, TN

Alex and Karthik present posters  

9/22/09 - sinkhole project on the discovery channel


8/19/09 - Lab party!


6/25/2009 - Genomics of Geochemistry session at Goldschmidt in Davos, Switzerland.


6/12/2009 - Karthik heads to Lau Basin! He will join an oceanographic expedition on the R/V Thompson to investigate the geomicrobiology of buoyant hydrothermal plumes at the Lau Basin backarc spreading center. Follow the cruise blog.


6/1/2009 - sampling amazing microbial mats at sinkholes in Lake Huron (below).