- metachromatic granules
(met\'ah-kro-mat\'ik)Granules of polyphosphate in the cytoplasm of some bacteria that appear a different color when stained with a blue basic dye. They are storage reservoirs for phosphate. Sometimes called volutin granules.
Microbiology. Aard_Wark . 2009.
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metachromatic — adjective Date: 1876 1. staining or characterized by staining in a different color or shade from what is typical < metachromatic granules in a bacterium > 2. having the capacity to stain different elements of a cell or tissue in different colors… … New Collegiate Dictionary
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volutin granules — (vo lu tin) See metachromatic granules … Dictionary of microbiology
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