作者
Asaph Aharoni, CH Ric De Vos, Martina Wein, Zhongkui Sun, Raffaella Greco, Arthur Kroon, Joseph NM Mol, Ann P O'Connell
发表日期
2001/11
期刊
The Plant Journal
卷号
28
期号
3
页码范围
319-332
出版商
Blackwell Science Ltd
简介
Fruit ripening is characterized by dramatic changes in gene expression, enzymatic activities and metabolism. Although the process of ripening has been studied extensively, we still lack valuable information on how the numerous metabolic pathways are regulated and co‐ordinated. In this paper we describe the characterization of FaMYB1, a ripening regulated strawberry gene member of the MYB family of transcription factors. Flowers of transgenic tobacco lines overexpressing FaMYB1 showed a severe reduction in pigmentation. A reduction in the level of cyanidin 3‐rutinoside (an anthocyanin) and of quercetin‐glycosides (flavonols) was observed. Expression of late flavonoid biosynthesis genes and their enzyme activities were aversely affected by FaMYB1 overexpression. Two‐hybrid assays in yeast showed that FaMYB1 could interact with other known anthocyanin regulators, but it does not act as a …
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