Light regulation of anthocyanin accumulation and chalcone synthase gene expression in petunia flowers

Anat Katz, David Weiss*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

We have previously shown that light is essential for anthocyanin synthesis in detached petunia flowers. In this study, we examined the effect of light quality on anthocyanin accumulation and on the expression of the anthocyanin biosynthetic gene chalcone synthase (chs) in the attached petunia flowers. When plants were kept for 48 h in the dark, chs expression could not be detected. Blue light and red light promoted the expression of the gene to similar levels, whereas the effect of green light was slightly smaller. Neither UV-A nor UV-B radiation were required for anthocyanin accumulation, or for the induction and maintenance of chs expression. The results of this study show that light is essential for anthocyanin synthesis in petunia flowers and that its active spectrum includes most of the visible part but not UV radiation.

Original languageAmerican English
Pages (from-to)225-229
Number of pages5
JournalIsrael Journal of Plant Sciences
Volume47
Issue number4
DOIs
StatePublished - 1999

Bibliographical note

Funding Information:
This work was supported by a grant from the Ministry of Agriculture, Israel.

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