Journal
WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY
Volume 24, Issue 11, Pages 2671-2675Publisher
SPRINGER
DOI: 10.1007/s11274-008-9794-3
Keywords
solid-state fermentation; Monascus purpureus; red pigment; direct illumination; photoreceptors
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Funding
- Council of Scientific and Industrial Research, Government of India, New Delhi
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The capacity to sense and respond to light is widespread in animals, plants, fungi and bacteria. The effect of light quality on growth and pigment yield of Monascus purpureus was investigated. Incubation in total darkness increased red pigment production from 14. 5 OD/g dry substrate to 22 OD/g dry substrate. In contrast, growth of the fungus in direct illumination resulted in total suppression of pigment production. It was found that both red and blue light influenced pigment yield as well as culture morphology. The authors propose the existence of a light-perception system in Monascus purpureus.
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