title: Constituents of the cotton bud: XII. The carotenoids in buds, seeds and other tissue.
abstract: Eleven carotenoid pigments were found in the bud, leaf, flower petal, seedling and seed of the cotton plant; nine were identified and quantitated. The most abundant carotenoids in the green tissue of the cotton plant were beta-carotene and lutein. Carotene hydrocarbons comprised 12% of the total carotenoids in the seed, 15% in the 1-day-old flower petal, 51% in the bud and 57% in green leaves. Only 5,8-epoxy carotenoids were found in the flower petals and only 5,6-epoxides in the other tissue but both were present in the seed. The colorless phytoene precursors to the carotenoids comprised from 20% to 38% of the total carotenoid pigment in the growing tissue of the plant.
authors.affiliation: Entomology Research Division, A.R.S., USDA, 39762, State College, Mississippi.
authors.forename: A C
authors.initials: AC
authors.lastname: Thompson
authors.forename: R D
authors.initials: RD
authors.lastname: Henson
authors.forename: P A
authors.initials: PA
authors.lastname: Hedin
authors.forename: J P
authors.initials: JP
authors.lastname: Minyard