Constituents of the cotton bud: XII. The carotenoids in buds,seeds and other tissue |
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Authors: | A C Thompson R D Henson P A Hedin J P Minyard |
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Affiliation: | (1) Entomology Research Division, A.R.S., USDA, 39762 State College, Mississippi;(2) Present address: Chemical Regulatory Laboratory, Mississippi State University, State College, Mississippi |
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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 β-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.
In cooperation with the Mississippi Agricultural Experiment Station, State College. |
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