12/31/2022

The Cyanobacteria

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The structure of a cyanobacterium (right): 1. cytoplasmic membrane 2. cell wall - gram negative 3. capsule 4. mucoid sheath 5. paired thyla...
12/31/2006

Photochemistry

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Cyanobacteria contain chlorophyll a , which is also found in plants and algae. Other photosynthetic organisms contain chlorophyll b (gree...

phycobilosomes

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The Cyanobacteria possess photosynthetic thylakoid membranes studded with phycobilin-containing phycobilosomes (PBSs). Marine Synechococc...

Phylogenetic relationships

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The Cyanobacteria are a monophyletic group within the Eubacteria , and are closely related to the purple bacteria and gram positive bacte...
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Fossilized cyanobacteria

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The cyanobacteria were not the first cells to evolve on the planet - those were probably heterotrophic prokaryotes. However, the "self-...

Endosymbiotic Gene Transfer in Cyanobacterial Plastids

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ScienceWeek : mod. "Amazingly some of the chloroplast's own genes were not simply lost from its genome but moved to the host nucle...
2/20/2006

Discovery Channel :: News :: 3-D Images Reveal Fossils Inside Rock

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Discovery Channel :: News :: 3-D Images Reveal Fossils Inside Rock : "Paleobiologist J. William Schopf of the University of California,...
12/31/2005

The initiation of biological processes on Earth: summary of empirical evidence.

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Entrez PubMed : "With the currently available geological record at band, the existence of life on this planet as from at least 3.8 Gyr ...
12/10/2005

Oxygenic photosynthesis by micro-organisms

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ScienceWeek : "Microorganisms are important for many reasons, not the least of which is their responsibility, direct or indirect, for ...