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purple bacteria
plural noun
- a group of Gram-negative pink to purplish-brown bacteria, comprising the purple sulfur bacteria and purple nonsulfur bacteria, that occur in anaerobic aquatic environments and carry out a unique form of photosynthesis without oxygen, using the pigment bacteriochlorophyll.
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˜yÐÄvlog History and Origins
Origin of purple bacteria1
First recorded in 1895–1900
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Example Sentences
Examples have not been reviewed.
They dredged up gooey purple bacteria from a deep sinkhole in Lake Huron and tinkered with how much light it got in lab experiments.
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The purple bacteria have thus two sources of energy, one by the oxidation of sulphur and another by the absorption of "dark rays."
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