• Bar-Akiva A, Ovadia R, Rogachev I, Bar-Or C, Bar E, Freiman Z, Nissim-Levi A, Gollop N, Lewinsohn E, Aharoni A, Weiss D, Koltai H, Oren-Shamir M. 2010. Metabolic networking in Brunfelsia calycina petals after flower opening. J Exp Bot 61: 13931403.
  • Choi YH, Tapias EC, Kim HK, Lefeber AW, Erkelens C, Verhoeven JT, Brzin J, Zel J, Verpoorte R. 2004. Metabolic discrimination of Catharanthus roseus leaves infected by phytoplasma using 1H-NMR spectroscopy and multivariate data analysis. Plant Physiol 135: 23982410.
  • Ferreres F, Pereira DM, Valentão P, Andrade PB, Seabra RM, Sottomayor M. 2008. New phenolic compounds and antioxidant potential of Catharanthus roseus. J Agric Food Chem 56: 99679974.
  • Forsyth WGC, Simmonds NW. 1957. Anthocyanidins of Lochnera rosea. Nature 180: 247.
  • Kim HK, Choi YH, Verpoorte R. 2010a. NMR based metabolomic analysis of plants. Nat Protoc 5: 536548.
  • Kim HK, Saifullah, Khan S, Wilson EG, Kricun SD, Meissner A, Goraler S, Deelder AM, Choi YH, Verpoorte R. 2010b. Metabolic classification of South American Ilex species by NMR-based metabolomics. Phytochemistry 71: 773784.
  • Malien-Aubert C, Dangles O, Amiot MJ. 2001. Color stability of commercial anthocyanin-based extracts in relation to the phenolic composition. Protective effects by intra and intermolecular copigmentation. J Agric Food Chem 49: 170176.
  • Markham KR, Ofman DJ. 1993. Lisianthus flavonoid pigments and factors influencing their expression in flower colour. Phytochemistry 34: 679685.
  • Miller R, Owens SJ, Rørslett B. 2011. Plants and colour: Flowers and pollination. Opt Laser Technol 43: 282294.
  • Milo J, Levy A, Akavia N, Ashri A, Palevitch D.1985. Inheritance of corolla color and anthocyanin pigments in periwinkle (Catharanthus roseus [L.] G. Don). Z Pflanzenzüchtung 95: 352360.
  • Mustafa NR, Verpoorte R. 2007. Phenolic compounds in Catharanthus roseus. Phytochem Rev 6: 243258.
  • Nishihara M, Nakatsuka T. 2011. Genetic engineering of flavonoid pigments to modify flower color in floricultural plants. Biotechnol Lett 33: 433441.
  • Pereira DM, Ferreres F, Oliveira J, Valentão P, Andrade PB, Sottomayor M. 2009. Targeted metabolite analysis of Catharanthus roseus and its biological potential. Food Chem Toxicol 47: 13491354.
  • Robinson GM, Robinson R. 1931. A survey of anthocyanins. I. Biochem 25: 16871705.
  • Seigler DS. 1995. Plant Secondary Metabolism. Kluwer Academic Publishers: Dordrecht.
  • Tanaka Y, Brugliera F, Kalc G, Senior M, Dyson B, Nakamura N, Katsumoto Y, Chandler S. 2010. Flower color modification by engineering of the flavonoid biosynthetic pathway: practical perspectives. Biosci Biotechnol Biochem 74: 17601769.
  • Weissenberg M, Levy A, Schaeffler I, Levy EC. 1988. High-performance liquid chromatographic analysis of the ajmalicine distribution in roots of Catharanthus roseus lines with different flower colours. J Chromatogr A 452: 485490.
  • Willstätter R, Mallison H. 1915. Untersuchungen über die Anthocyane. X. Über Variationen der Blütenfarben. Justus Liebigs Ann Chem 408: 147162.
  • Yang SO, Kim SH, Kim Y, Kim HS, Chun YJ, Choi HK. 2009. Metabolic discrimination of Catharanthus roseus calli according to their relative locations using 1H-NMR and principal component analysis. Biosci Biotechnol Biochem 73: 20322036.
  • Yoshida K, Toyama-Kato Y, Kameda K, Kondo T. 2003. Sepal color variation of Hydrangea macrophylla and vacuolar pH measured with a proton-selective microelectrode. Plant Cell Physiol 44: 262268.
  • Yoshida K, Mori M, Kondo T. 2009. Blue flower color development by anthocyanins: from chemical structure to cell physiology. Nat Prod Rep 26: 857964.
  • Zhu C, Bai C, Sanahuja G, Yuan D, Farré G, Naqvi S, Shi L, Capell T, Christou P. 2010. The regulation of carotenoid pigmentation in flowers. Arch Biochem Biophys 504: 132141.