25. Suzuki, H.; Fujioka, S.; Takatsuto, S.; Yokota, T.; Murofushi, N. y Sakurai, A. Biosynthesis of brassinolide from teasterone via typhasterol and castasterone in cultured cells of Catharanthus roseus. J. Plant Growth Regul., 1994, vol. 13, p. 21-26.