High levels of expression of multiple enzymes in the Smirnoff-Wheeler pathway are important for high accumulation of ascorbic acid in acerola fruits

Acerola fruits contain abundant ascorbic acid (AsA). The gene expression levels of three upstream enzymes in the primary AsA biosynthesis pathway were correlated with AsA contents in the fruits of two acerola cultivars. Multiple overexpression of the enzymes increased AsA contents, suggesting their...

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Published inBioscience, biotechnology, and biochemistry Vol. 83; no. 9; pp. 1713 - 1716
Main Authors Suekawa, Marina, Fujikawa, Yukichi, Inoue, Akari, Kondo, Takayuki, Uchida, Eriko, Koizumi, Takeshi, Esaka, Muneharu
Format Journal Article
LanguageEnglish
Published England Taylor & Francis 02.09.2019
Oxford University Press
Subjects
acerola
ascorbic acid
multiple expressions
the Smirnoff-Wheeler pathway
multiple expressions
ascorbic acid
the Smirnoff-Wheeler pathway
acerola
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Summary:Acerola fruits contain abundant ascorbic acid (AsA). The gene expression levels of three upstream enzymes in the primary AsA biosynthesis pathway were correlated with AsA contents in the fruits of two acerola cultivars. Multiple overexpression of the enzymes increased AsA contents, suggesting their high expression is important for high AsA accumulation in acerola fruits and the breeding of AsA-rich plants. Abbreviations: AsA: ascorbic acid; PMI: phosphomannose isomerase; PMM: phosphomannomutase; GMP: GDP-d-mannose pyrophosphorylase; GME: GDP-d-mannose 3ʹ,5ʹ-epimerase; GGP: GDP-l-galactose phosphorylase; GPP: l-galactose-1-phosphate phosphatase; GDH: l-galactose dehydrogenase; GLDH: l-galactono-1,4-lactone dehydrogenase
Bibliography:ObjectType-Article-1
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ISSN:0916-8451
1347-6947
DOI:10.1080/09168451.2019.1608808