The Chromatiaceae are the main family of purple sulfur bacteria. Many members conduct an anoxygenic photosynthesis. They are distinguished from the Ectothiorhodospiraceae by producing sulfur globules and storing them within their cells. Most species of Ectothiorhodospiraceae are also purple sulfur bacteria but they store the globules without their...
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http://en.wikipedia.org/wiki/Chromatiaceae
(from the article `bacteria`) ...absorbs light of long, low-energy wavelengths. These organisms require an electron donor other than water and do not release oxygen. The green ...
Found on
http://www.britannica.com/eb/a-z/c/80
Generally strictly anaerobic organisms found in the anaerobic and sulfide-containing parts of all kinds of aquatic environments. ... (12 Dec 1998) ...
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http://www.encyclo.co.uk/local/20973
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