Abstract
The ascorbic acid (AsA) content and the mRNA levels of L-galactose-1-phosphate phosphatase (GPPase), and L-galactono-1,4-lactone dehydrogenase (GalLDH) increased by intense light, and decreased in the dark. Moreover, the promoter regions of GPPase and GalLDH contained light responsible cis-elements. These results suggest that in rice, AsA synthesis is regulated by light.
MeSH terms
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Ascorbic Acid / biosynthesis*
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Ascorbic Acid / genetics
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Ascorbic Acid / metabolism*
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Galactosephosphates
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Genes
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Light*
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Oryza / genetics
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Oryza / metabolism*
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Oxidoreductases / genetics
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Oxidoreductases / metabolism
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Oxidoreductases Acting on CH-CH Group Donors
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Phosphoric Monoester Hydrolases / genetics
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Phosphoric Monoester Hydrolases / metabolism
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RNA, Messenger / genetics
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RNA, Messenger / metabolism
Substances
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Galactosephosphates
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RNA, Messenger
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galactose-1-phosphate
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Oxidoreductases
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Oxidoreductases Acting on CH-CH Group Donors
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galactonolactone dehydrogenase
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galactose-1-phosphatase
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Phosphoric Monoester Hydrolases
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Ascorbic Acid