Effect of light and exogenously applied precursors on amaranthin synthesis in Amaranthus caudatus |
| |
Authors: | Christopher J. French Robert C. Pecket Harry Smith |
| |
Affiliation: | Department of Botany, University of Manchester, Manchester M13 9PL USA |
| |
Abstract: | Light stimulates the synthesis of amaranthin in Amaranthus caudatus var. viridis. Evidence suggests that this stimulation is markedly dependent on seedling age. Synthesis is controlled by both a “low-energy” red/far-red reversible phytochrome system and an HER at least partially under phytochrome control. In seedlings exposed to light, synthesis is promoted by exogenously applied DOPA and tyrosine. It is suggested that at least two light-promoted reactions occur in the biosynthetic pathway; one between tyrosine and DOPA and a second between DOPA and amaranthin. |
| |
Keywords: | Amaranthaceae love-lies-bleeding betacyanins phytochrome control biosynthesis. |
本文献已被 ScienceDirect 等数据库收录! |