TY  - BOOK
AU  - Zhang,Kai Ming
AU  - Wang,Jia Wan
AU  - Guo,Mei Li
AU  - Du,Wen Li
AU  - Wu,Rong Hua
AU  - Wang,Xian
TI  - Short-day signals are crucial for the induction of anthocyanin biosynthesis in Begonia semperflorens under low temperature condition
SN  - 0176-1617
AV  - QK711.2 JOU 
PY  - 2016///
CY  - Amsterdam
PB  - Elsevier GmbH
KW  - Carbohydrate
KW  - Carbon over-flux
KW  - Inhibitory site
N2  - The leaves of Begonia semperflorens accumulate anthocyanins and turn red in autumn in sub-temperate areas. This induction of anthocyanin biosynthesis in autumn has been attributed to the effects of low temperature, but the effects of different light regimes on this process are still being debated. In the present work, short days were found to be necessary for anthocyanin biosynthesis at low temperature. Under the same low-temperature conditions, Begonia seedlings grown under the short-day condition accumulated more carbohydrates and abscisic acid (ABA), which both induce anthocyanin biosynthesis. However, fewer carbohydrates and more gibberellin (GA) accumulated under the long-day conditions to maintain growth, which blocked anthocyanin biosynthesis and resulted in a lack of increases in the activities of dihydroflavonol 4-reductase (DFR) and flavonoid-3-O-glucosyl transferase (UFGT). Consequently, carbon flux, which was altered due to the blockade of anthocyanin synthesis, was channelled into the production of quercetin and phenolic acids but not lignin
UR  - https://doi.org/10.1016/j.jplph.2016.06.021
ER  -