Pigment synthesis in Cucurbita moschata cotyledons as influenced by CPTA and several inhibitors

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概要

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• 2-(4-Chlorophenylthio) triethylamine hydrochloride (CPTA) induced the accumulation of a number of carotenes in pumpkin (Cucurbita moschata) cotyledons, a tissue which does not normally accumulate these pigments. Lycopene accumulated concomitantly with a decrease in a-carotene and β-carotene. CPTA appeared to inhibit cyclases involved in the synthesis of a-carotene and β-carotene and to stimulate enzymes involved in lycopene synthesis. Cycloheximide reduced this CPTA induced enzyme synthesis while diphenylamine reduced CPTA induced carotene accumulation. Actinomycin D alone reduced accumulation of carotenes, but it did not affect CPTA induced carotene accumulation. Rather lutein, violoxanthin and neoxanthin decreased and a-carotene and β-carotene accumulated.

著者

• E. Splittstoesser

  Department Of Horticulture University Of Illinois At Urbana-champaign

• Seyama Norio

  Department of Horticulture, University of Illinois at Urbana-Champaign

• Seyama Norio

  Department Of Horticulture University Of Illinois At Urbana-champaign:(present)morioka Branch Vegeta

関連論文

• Pigment synthesis in Cucurbita moschata cotyledons as influenced by CPTA and several inhibitors

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