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Meetings, Workshops and Activities
- Doug LaRowe (Assistant Research Professor at University of Southern California)
- Ileana Perez-Rodriguez (postdoc at Carnegie Institution for Science)
- Elizabeth Trembath-Reichert (graduate student at CalTech, and Schlanger fellow)
- Ben Tully (postdoc at University of Southern California)
Description: Far removed from the surface world, a significant number of Earth’s microbes live in the subsurface. This environment may have limited energy and biomass may be preserved for geologic time periods. Yet, evidence of active biogeochemical cycles can be seen in the environment. So are these microbes in a blaze of glory, or just living on a prayer? This session will cover all aspects of marine and terrestrial subsurface microbial studies, from cultivation to genomics, thermodynamic modeling to in-situ investigations, preserved biomarker to enzymatic activity studies. Microbes in the subsurface are wanted, dead or alive.
-Jen and Beth
- Session 2277: Coupling between methane and nitrogen cycles revealed by geochemical and molecular approaches
Conveners: Jennifer Glass, Joel Kostka, Joe Montoya
- Session 2707: The Thermodynamics of Life
Conveners: Lindsay Hays, Michael New
- Session 3007: Illuminating Biological Dark Matter in Extreme Environments
Conveners: Brandon Briggs and Eric Boyd
- Session 3050: Deep cycling of carbon within and beyond the limits of life
Conveners: Mark Lever, Aude Picard, Clair Cousins
- Session 3102: Proof of Life: Cutting-Edge tools for metabolic rate measurements in environmental microbiology and astrobiology
Conveners: Jeff Marlow, Shawn McGlynn
- Session 3700: Cyrptic cross-linkages among biogeochemical cycles: novel insights from the perspective of reactive intermediates
Conveners: Scott Wankel, Colleen Hansel
If you have a sessions you would like included in future announcements, please contact Matt at firstname.lastname@example.org.
EGU General Assembly 2015: Call for Sessions
The call for sessions for the next EGU general Assembly (Vienna, Apr 2015) has just been launched. As a Science Officer for the “BG7. Geomicrobiology and Extreme Environments”, Helge Niemann would like to ask you to suggest a session (perhaps about the deep biosphere?). Just go to http://meetingorganizer.copernicus.org/EGU2015/provisionalprogramme/BG#BG7 to make suggestions.
Hot Off the Press: Extracellular enzyme activity and microbial diversity measured on seafloor exposed basalts from Loihi Seamount indicate importance of basalts to global biogeochemical cycling (C-DEBI Contribution 206) in Applied and Environmental Biology
Seafloor basalts are widely distributed and host diverse prokaryotic communities, but no data exists constraining the metabolic rates of the resident microbial communities. Meyers, C-DEBI research grantee Sylvan and researcher Edwards present here potential extracellular enzyme activities of leucine aminopeptidase (LAP) and alkaline phosphatase (AP) measured on basalt samples from different locations on Loihi Seamount, Hawaii, coupled with analysis of prokaryotic biomass and pyrosequencing of the bacterial 16S rRNA gene. Community maximum potential enzyme activity (Vmax) of LAP ranged 0.47-0.90 nmol (g rock)−1 hr−1; Vmax for AP was 28-60 nmol (g rock)−1 hr−1. Km of LAP ranged 26-33 μM, while Km for AP was 2-7 μM. Bacterial communities on Loihi basalts were comprised primarily by Alpha-, Delta- and Gammaproteobacteria, Bacteroidetes and Planctomycetes. The putative ability to produce LAP is evenly distributed across the most commonly detected bacterial orders, but the ability to produce AP is likely dominated by the bacteria in the orders Xanthomonadales, Flavobacteriales and Planctomycetales. Enzyme activities on Loihi basalts were compared to other marine environments studied and found to be similar in magnitude to those from continental shelf sediments and orders of magnitude higher than any measured in the water column, demonstrating that the potential for exposed basalts to transform organic matter is substantial. We propose that basaltic rock plays a significant, quantifiable role in benthic biogeochemical processes.
DEADLINE to apply: July 23, 2014.
Ocean Leadership: Share Your Ocean Story with the BBC
Ocean Leadership has built a website to help BBC solicit ideas/content/contacts for their upcoming seven-part series follow-up to Blue Planet entitled Ocean: New Frontiers.
National Academies Research Associateships for Graduate, Postdoctoral and Senior Researchers
There are four annual review cycles and the next closes August 1.
IODP-USSSP: Proposals for Pre-Drilling Activities and Workshops
The U.S. Science Support Program (USSSP) accepts proposals on a rolling basis for pre-drilling activities and semi-annually for workshops, next submission deadline November 15, 2014, related to the International Ocean Discovery Program (IODP).
The Institute for Chemistry and Biology of the Marine Environment (ICBM) at the University of Oldenburg, Germany, seeks a PhD graduate student (job advertisement). Deep-biosphere research is central to the Paleomicrobiology group at our interdisciplinary institute and has focused on the role of phages in the deep subsurface over the last years. For more information on our previous work on viruses, visit our website www.pmbio.icbm.de or watch the talk by our former PhD student Tim Engelhardt in the C-DEBI Networked Speaker Series. The project is funded by the German Research Foundation and will investigate the deep viriosphere in Baltic Sea sediments recovered during IODP Exp. 347. Review of applications will begin August 1st, 2014; applications will continue to be accepted until the position is filled. Expected appointment is fall 2014. Questions may be directed to Dr. Bert Engelen at email@example.com.
University of Minnesota, Department of Earth Sciences: Assistant Professor in Geomicrobiology and Bioremediation
Review of applications will begin September 8, 2014; applications will continue to be accepted until the position is filled. Expected appointment is Fall 2015.
LUBEM, University of Brest (UBO), France: 12-month Postdoctoral Position
Interested candidates are encouraged to send a curriculum vitae, a cover letter outlining previous experience and support letters from 2 colleagues with first-hand knowledge of their work experience as soon as possible by e-mail to Gaëtan Burgaud (firstname.lastname@example.org). See the flyer for more information.
Texas A&M, College of Geosciences: 4 Faculty Positions
The search committee will commence review of applications starting 1 May and will continue until the positions are filled.
Don’t forget to email me with any items you’d like to share in future newsletters! You are what makes our deep biosphere community!