"We keep looking for life in other planets. But what is the definition for life? What is the difference between living and non-living?"
Content with the tag: “phosphorus”
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Strategies for Evolutionary Success - Sulfolipids
Researchers from NAI’s University of Rhode Island Team and their colleagues have studied the use of phosphorus vs. sulfur in the membrane lipid sythesis pathways of organisms resident in the ocean’s subtropical gyres. Their data show that the dominant organism in the phytoplankton, a cyanobacterium, has evolved a “sulfur-for-phosphorus” strategy; producing a membrane lipid containing sulfate and sugar instead of phosphate. This adaptation may have been a major event in Earth’s early history when the relative availability of sulfate and phosphate was different than in today’s oceans. Their paper appears in the June 6th issue of PNAS.
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July 5, 2006 / Posted by: Shige Abe
Module 1: The Building Blocks of Life
ROADMAP OBJECTIVES: 3.1, 3.2, 4.2, 7.1
Sulfur and Phosphorus Cosmochemistry: Implications
ROADMAP OBJECTIVES: 3.1, 3.2, 3.3, 3.4, 4.1, 4.3, 5.1, 7.1
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