title: Analysis of light-controlled accumulation of carotenoids in mustard (Sinapis alba L.) seedlings.
abstract: Carotenoid accumulation in the cotyledons of the mustard seedling (Sinapis alba L.) is controlled by light. Besides the stimulatory function of phytochrome in carotenogenesis the experiments reveal the significance of chlorophyll accumulation for the accumulation of larger amounts of acrotenoids. A specific blue light effect was not found. The data suggest that light exerts its control over carotenoid biogenesis through two separate mechanisms: A phytochrome regulation of enzyme levels before a postulated pool of free carotenoids, and a regulation by chlorophyll draining the pool by complex-formation.
authors.affiliation: Biologisches Institut II, Universität Freiburg, Schänzlestraße 1, D-7800, Freiburg, Germany.
authors.forename: S
authors.initials: S
authors.lastname: Frosch
authors.forename: H
authors.initials: H
authors.lastname: Mohr