2003 Annual Science Report
Astrobiology Roadmap Objective 5.3 Reports Reporting | JUL 2002 – JUN 2003
Roadmap Objective 5.3—Biochemical adaptation to extreme environments
Project Reports
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Biogeochemistry of the Early Earth
ROADMAP OBJECTIVES: 1.1 3.1 4.1 4.3 5.2 5.3 6.2 7.1 7.2 -
Isotopic and Molecular Approaches to Microbial Ecology and Biogeochemistry (The Evolution of Organic Matter)
ROADMAP OBJECTIVES: 3.2 4.1 4.2 5.1 5.2 5.3 6.1 7.1 7.2 -
First-Stage Biofilm Formation Under Extreme Conditions in Ice
ROADMAP OBJECTIVES: 5.1 5.3 6.1 6.2 7.2 -
Subsurface Biospheres
ROADMAP OBJECTIVES: 4.1 5.3 -
Bacterial Adaptation to Low Temperatures
ROADMAP OBJECTIVES: 5.1 5.3 6.2 -
Benner – Self-Reproducing Molecular Systems and Darwinian Chemistry
ROADMAP OBJECTIVES: 1.1 2.1 2.2 3.1 3.2 4.1 4.2 4.3 5.1 5.2 5.3 6.2 7.1 7.2 -
Evolution in Microbe-Based Ecosystems: Desert Springs as Analogues for the Early Development and Stabilization of Ecological Systems
ROADMAP OBJECTIVES: 4.1 5.1 5.2 5.3 6.1 7.1 -
Indigenous Bacteria of Arctic and Antarctic Permafrost
ROADMAP OBJECTIVES: 5.1 5.3 6.1 -
Molecular Survey of Microbial Diversity in Hypersaline Ecosystems, Ecogenomics
ROADMAP OBJECTIVES: 3.2 3.4 4.1 4.2 5.1 5.2 5.3 6.1 7.1 7.2 -
Eukaryotic Origins and the Evolution of Cellular Complexity – Eukaryotic rRNA Evolution: Early Diverging Eukaryotes
ROADMAP OBJECTIVES: 4.2 5.1 5.2 5.3 -
Genomic and Proteomic Analysis of Permafrost Bacteria
ROADMAP OBJECTIVES: 5.1 5.3 6.2 -
The Planetary Context of Biological Evolution Subproject: The Proterozoic Oxidiation of the Earth’s Surface
ROADMAP OBJECTIVES: 1.1 4.1 4.2 5.3 6.1 -
Genomic Evolution and the Tree of Life
Horizontal gene transfer greatly accelerates genome evolution and Innovation. We are comparing the genomes of eight prokaryotes and related horizontal gene transfer (HGT) to environmental and genomic properties of the organisms and their habitats.
ROADMAP OBJECTIVES: 3.2 3.4 4.2 5.1 5.2 5.3 -
Early Microbial Ecosystems
ROADMAP OBJECTIVES: 4.1 5.2 5.3 6.1 7.1 7.2 -
Theoretical Studies of Hydrothermal Synthesis Reactions
ROADMAP OBJECTIVES: 2.2 3.1 3.2 4.2 5.1 5.3 6.1 -
Ecological Genomics
ROADMAP OBJECTIVES: 5.1 5.2 5.3 6.1 -
Evolution of Atmospheric O2, Climate, and Biosphere – Ohmoto
ROADMAP OBJECTIVES: 1.1 2.1 4.1 4.3 5.2 5.3 6.1 7.1 7.2 -
The Virtual Planetary Laboratory – the Life Modules
ROADMAP OBJECTIVES: 1.1 4.1 5.3 6.1 7.2 -
Ecosystem to Biosphere Modeling
We have developed a simulation model called MBGC (Microbial BioGeoChemistry) to infer effects of major environmental controllers on microbial community structure and function (Decker and Potter, 2002).
ROADMAP OBJECTIVES: 4.1 5.3 6.1 7.2 -
Biological Studies of Hydrothermal Systems
Task 1. Field Studies and Laboratory Characterization of Hydrothermal Vent Microbes (Baross)
ROADMAP OBJECTIVES: 4.1 4.2 5.1 5.3 6.1 7.1 -
Organic Molecules as Biosignatures
ROADMAP OBJECTIVES: 2.1 2.2 5.2 5.3 6.1 7.1 -
Causes and Consequences of the Diversification and Tetinction of Metazoans: Neoproterozoic Variations – Arthur
ROADMAP OBJECTIVES: 4.1 5.2 5.3 6.1 -
Evolution of Biocomplexity From an Ancient Autotrophic Lineage
ROADMAP OBJECTIVES: 3.2 3.3 4.1 4.2 5.1 5.3 6.1 -
Life Beyond the Planet of Origin
ROADMAP OBJECTIVES: 5.3 6.2 -
Diversity and Physiology of Prokaryotes in Selected Thermophilic and Mesophilic Environments That Might Resemble Early Earth’s Biosphere
ROADMAP OBJECTIVES: 4.1 5.1 5.2 5.3 -
Enzymes of Ancient Metabolic Pathways
ROADMAP OBJECTIVES: 3.3 4.1 5.1 5.2 5.3 6.1 6.2 -
Microbial Mat Communities
ROADMAP OBJECTIVES: 3.2 4.1 4.2 5.1 5.2 5.3 6.1 -
Isolation of Psychrophilic Microorganisms
ROADMAP OBJECTIVES: 3.4 4.2 5.1 5.2 5.3 6.1 6.2 -
Microbe-Mineral Interactions
ROADMAP OBJECTIVES: 4.1 5.3 6.1 7.1 -
Geopulse
ROADMAP OBJECTIVES: 4.1 5.2 5.3 6.1 7.2 -
A Timescale for the Evolution of Life on Earth – Hedges
ROADMAP OBJECTIVES: 1.2 2.1 3.4 4.1 4.2 4.3 5.2 5.3 7.1 7.2 -
A Timescale for the Evolution of Life on Earth – Nei
ROADMAP OBJECTIVES: 1.2 2.1 3.4 4.1 4.2 4.3 5.2 5.3 7.1 7.2