Copyright 1998-2022 Yoshiaki Yoneda

Tokio Hagiwara energetically advanced our understanding of flower color inheritance in the morning glory. Analytic instruments to elucidate the molecular structure of a pigment have been developed recently, and the constituents and the quantity ratio of the morning glory pigment ingredient have been elucidated.

The morning glory flower contains all colors except a strong yellow. The molecular structure analysis of the flower pigments is progressing.

References

1. Hagiwara, T. (1931) The genetics of flower colours in Pharbitis Nil. J. Coll. Agr. Imp. Univ. Tokyo 51: 241-262.
   
2. Lu, T. S., Saito, N., Yokoi, M., Shigihara, A. and Honda, T. (1991) An acylated peonidin glucoside in the violet-blue flowers of Pharbitis nil. Phytochemistry 30, 2387.
   
3. Saito, N., Cheng, J., Ichimura, M., Yokoi, M., Abe, Y., Honda, T. (1994) Flavonoids in the acyanic flowers of Pharbitis nil. Phytochmistry 35: 687-69l