Research Article

Genotype-Specific Changes in Vitamin B6 Content and the PDX Family in Potato

Figure 3

Total vitB6 content in potato tubers based on a yeast bioassay. (a) Extracts from lyophilized baby potato tubers. (b) Mature potatoes, and ((c), (d)) vitB6 content in two cultivars after long-term, low-temperature storage. Letters indicate skin (first capital letter) and flesh color (second capital letter). Pi: pink; Pu: purple; Pr: pink red; R: red; Ru: Russet, W: white; Y: yellow; Yp: Yellow with pink eyes; Yr: yellow with red eyes.