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Photoprotective role of carotenoids in yeasts: Response to UV-B of pigmented and naturally-occurring albino strains

Paper ID Volume ID Publish Year Pages File Format Full-Text
29972 44449 2009 6 PDF Available
Title
Photoprotective role of carotenoids in yeasts: Response to UV-B of pigmented and naturally-occurring albino strains
Abstract

In this work, the photoprotective role of carotenoids in yeasts was analysed by contrasting the responses to UV-B of pigmented and naturally occurring albino strains of Sporobolomyces ruberrimus and Cystofilobasidium capitatum in different conditions. Albino and pigmented strains were confirmed to be conspecific by PCR fingerprinting and rDNA sequencing. Experimental exposure to UV-B conducted with both yeast species showed that the pigmented strains were more tolerant to UV-B than the albino strains and that the increment in carotenoid contents during the stationary growth phase enhance survivorship. These results indicated that carotenoid pigments afford UV-B protection in yeasts.

Keywords
Carotenoids; UV radiation; Yeasts
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Photoprotective role of carotenoids in yeasts: Response to UV-B of pigmented and naturally-occurring albino strains
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology B: Biology - Volume 95, Issue 3, 3 June 2009, Pages 156–161
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
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