F. Murillo
1980
Citations
0
Influential Citations
18
Citations
Quality indicators
Journal
Plant Science Letters
Abstract
Abstract The presence in the medium of 2-(4-chlorophenylthio)-triethylamine hydrochloride (CPTA), an inhibitor of carotenogenesis, results in an increase of carotenoids. Lycopene and γ-carotene are the main carotenoids form no carotenoids. Lycopene and γ-carotene are the main carotenoids accumulated. The effect of CPTA on carA mutants does not occur in the presence of the protein-synthesis inhibitor cycloheximide. These and other results, previously reported, suggest that blocking of lycopene cyclisation by CPTA releases a negative control by β-carotene and that gene carA is involved in this regulatory mechanism. Probably the effect of carA mutations is an extreme reduction of the basal level of β-carotene required to trigger the negative control.