2006 Annual Science Report
Astrobiology Roadmap Objective 3.3 Reports Reporting | JUL 2005 – JUN 2006
Roadmap Objective 3.3—Origins of energy transduction
Project Reports
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Microbial Diversity and Population Structure Studies in the Rio Tinto
We have begun analyzing data from a new molecular diversity survey method called SARST-V6 (Serial Analysis of Ribosomal Sequence Tags) applied to the October 2002 samples. With SARST, the PCR products from orthologous hypervariable regions (~100 bp long for the bacterial V6 region) in rRNA genes are ligated together to form large concatemers. Our SARST data are currently only available for bacteria. A total of 10,575 RSTs (ribosomal sequence tags) were BLASTED against the GenBank and RDP Databases
ROADMAP OBJECTIVES: 3.3 5.1 5.2 -
Design and Assembly of a Cavity-Ring Down Spectrometer for Determination of Concentration and Isotopic Composition of Methane in Gases
ROADMAP OBJECTIVES: 2.1 3.2 3.3 4.1 5.2 5.3 6.2 7.1 7.2 -
Laser Fluorometry for Remote Detection of Oxygenic Phototrophs on Earth And, Potentially, on Mars.
ROADMAP OBJECTIVES: 3.3 4.2 5.1 5.3 -
Leigh Project
ROADMAP OBJECTIVES: 3.2 3.3 4.1 4.2 5.1 5.2 5.3 6.1 -
Oxygen Metabolism and Oxidatie Stress in Anaerobic Microorganisms (Ferry)
ROADMAP OBJECTIVES: 3.3 4.1 4.2 5.1 6.1 -
Experimental Study of Radiolytic Oxidation of Pyrite: Implications for Mars-Relevant Crustal Processes
In subsurface environments, radiolysis can produce gradients of both electron acceptors and electron donors that are possible sources of metabolic energy [2]. Radiation-induced chemical reactions have particular significance in geologic environments where molecular oxygen derived from the atmosphere is a negligible input.
ROADMAP OBJECTIVES: 3.3 4.1 4.2 5.1 5.2 5.3 6.1 7.2