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Microbiology: September 2008


Due to the hardship caused by Hurricane Ike to institutions on the Gulf Coast, NASA is again extending the deadline for the NASA Research Announcement NNH08ZTT003N NRA: Research Opportunities for Fundamental Space Biology Investigations in Microbial, Plant and Cell Biology from September 19, 2008 to September 24, 2008.

NAI's University of Wisconsin team presents a review of iron isotope fingerprints created through biogeochemical cycling in the May, 2008 issue of The Annual Review of Earth and Planetary Sciences. This landmark paper brings together for the first time the co-evolution records of photosynthesis, bacterial sulfate reduction, and bacterial iron reduction in the early Earth. They review data on natural systems and experiments, looking at both abiological and biological processes, and conclude that the temporal carbon, sulfur, and iron isotope record reflects the interplay of changing microbial metabolisms over Earth's history. [Source: NAI Newsletter]