4.4 Article

Light Regulation of Ascorbic Acid Biosynthesis in Rice via Light Responsive cis-Elements in Genes Encoding Ascorbic Acid Biosynthetic Enzymes

Journal

BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY
Volume 74, Issue 4, Pages 888-891

Publisher

OXFORD UNIV PRESS
DOI: 10.1271/bbb.90929

Keywords

ascorbic acid; light regulation; cis-element; rice

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The ascorbic acid (MA) content and the mRNA levels of L-galactose-I-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.

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