Elucidating Cause of Inferior Color by a Decrease in Anthocyanin Concentration

Authors:Haffner Brenna, Ogunbona Philip

Abstract


It has been reported that strawberries grown at high temperatures have a poor color. It is well known that high temperatures can adversely affect the pigmentation of many other plants, including the skin of Asian pears and the leaves of smoked trees (Cotinus coggygria). The reduction in anthocyanin concentration can be controlled by the expression of genes involved in anthocyanin synthesis. Anthocyanin synthesis requires two sets of genes: genes encoding enzymes that are directly involved in the synthesis of anthocyanins and other flavonoids, and regulatory genes that control the transcription of enzyme genes. Regarding regulatory genes, it has been demonstrated that the expression of a gene encoding an enzyme responsible for anthocyanin synthesis is regulated by the MYB-bHLH-WD40 transcription factor complex. We focused on FaMYB1, FaMYB5, and FaMYB10 isolated from previous studies. Other studies on the relationship between MYB and anthocyanin synthesis have found that in grape and apple varieties, MYB affects DFR (dihydroflavonol 4-reductase), UFGT (UDP-glucose: flavonoid 3-O-glucosyl) Transferase) promoter to regulate anthocyanin concentration.) And other enzyme genes. As mentioned above, high temperatures have been found to affect anthocyanin synthesis in several different plants.


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References


Ahmed, N.U., J.I. Park, H.J. Jung, Y. Hur and I.S. Nou. 2015. Anthocyanin biosynthesis for cold and freezing stress tolerance and desirable color in Brassica rapa. Functional & integrative genomics, 15 (4), 383-394.

Akula, R. and G.A. Ravishankar. 2011. Influence of abiotic stress signals on secondary metabolites in plants. Plant signaling & behavior, 6 (11), 1720-1731.

Crifò, T., I. Puglisi, G. Petrone, G.R. Recupero and A.R.L. Piero. 2011. Expression analysis in response to low temperature stress in blood oranges: implication of the flavonoid biosynthetic pathway. Gene, 476 (1-2), 1-9.

Guo, J., W. Han and M. Wang.2008. Ultraviolet and environmental stresses involved in the induction and regulation of anthocyanin biosynthesis: a review. African Journal of Biotechnology, 7 (25).

Romero, I., M.T. Sanchez-Ballesta, R. Maldonado, M.I. Escribano and C. Merodio. 2008. Anthocyanin, antioxidant activity and stress-induced gene expression in high CO2-treated table grapes stored at low temperature. Journal of plant physiology, 165 (5), 522-530.

Wahid, A. 2007. Physiological implications of metabolite biosynthesis for net assimilation and heat-stress tolerance of sugarcane (Saccharum officinarum) sprouts. Journal of plant Research, 120 (2), 219-228.


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