Effects of sucrose on anthocyanin production in hypocotyl of two radish (Raphanus sativus) varieties

Radish sprouts—Characterization and elicitation of novel varieties rich in anthocyanins

“…In previous studies, sugar-regulated plant secondary metabolite production was observed in broccoli sprouts treated with 88 and 176 mM of sucrose, which increased total anthocyanins by 26 and 44%, respectively (Guo et al, 2011a); the transcription level of PAL treated by sucrose is much higher than controls (Guo, Yuan, & Wang, 2011b). Hara et al (2004) found an induction of expression of the CHS, DFR and ANS genes after sucrose treatment, increasing as the TAC (7-fold) in red radish sprouts (cv. Comet) after 6 days of sucrose optimized treatment (175 mM).…”

“…An induction of PAL and CHS activity has been also proved after SA treatment (Ghasemzadeh, Jaafar, & Karimi, 2012;Obinata et al, 2003). The induction of anthocyanin synthesis genes has been studied as sugar specific (Guo, Yuan, & Wang, 2011a;Hara, Oki, Hoshino, & Kuboi, 2004;Solfanelli, Poggi, Loreti, Alpi, & Perata, 2006;Teng, Keurentjes, Bentsink, Koornneef, & Smeekens, 2005); interestingly, Solfanelli et al showed that at least one gene up-regulated by sucrose was detected in each step of the biosynthetic pathway (i.e. flavonoid biosynthetic genes such as PAL, CHI, CHS, and those specific for anthocyanin biosynthesis PAP1, DRF, LDOX/ANS, UF3GT).…”

Sucrose enhances the accumulation of anthocyanins and glucosinolates in broccoli sprouts

“…It has been reported that the accumulation of anthocyanins in red radish (Raphanus sativus) sprouts (Hara et al, 2004) genes. A similar situation was observed in sucrose-treated broccoli sprouts in our current study.…”

“…Moreover, it has been previously reported that sugars enhanced the accumulation of anthocyanins in several plant species. Anthocyanin biosynthesis was induced by sugars in radish (Raphanus sativus) hypocotyls (Hara et al, 2004). In addition, different sugars have distinct effects on the change of anthocyanins in blood orange (Citrus sinensis) juice (Cao et al, 2009).…”

“…Anthocyanins were reported to be regulated by light (Cominelli et al, 2007), stress (Lea, Slimestad, Smedvig, & Lillo, 2007) and sugar (Hara, Oki, Hoshino, & Kuboi, 2004). Sugars act as primary messengers in signal transduction processes that regulate many important processes in all phases of the plant life cycle (Rolland, Moore, & Sheen, 2002).…”