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Fig. 4 | Journal of Genetic Engineering and Biotechnology

Fig. 4

From: Phytohormones: plant switchers in developmental and growth stages in potato

Fig. 4

The regulatory network of the involved players during the onset of tuber development in potato. StSP6A protein and StBEL5 mRNA are the molecular signals in tuber development. POTH1 is a negative regulator in GA signaling during the tuberization stage. GA acts as a tuberization repressor and StSP6A and StBEL5 play roles as tuberization promoters. Auxin and CK promote tuber development. StSP6A protein and StBEL5 RNA are considered long-distance tuberization signals, moving through the phloem from the leaf to the stolon. StGA20ox delayed tuber development in potato by increasing GA at this stage. StGA2ox1 expression inhibits tuber development

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