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Plant and Cell Physiology, 1984, Vol. 25, No. 7 1153-1160
© 1984

Article

Photoregulation of Anthocyanin Synthesis X. Dependence on Photosynthesis of High Irradiance Response Anthocyanin Synthesis in Brassica oleracea Leaf Disks and Spirodela polyrrhiza

Alberto L. Mancinelli1 and Isaac Rabino2

1Department of Biological Sciences, Columbia University New York, NY 10027, U.S.A.
2Department of Natural Sciences, CUNY Baruch College New York, NY 10010, U.S.A.

The most effective spectral regions for anthocyanin production in cabbage leaf disks and Spirodela are the red, blue and ultraviolet A, with action in the far red (FR) minimal or nil. Phytochrome is involved in the photoregulation of anthocyanin production in these two systems. The expression of the response depends upon photosynthetic activity. Comparison with data from other systems suggests that a spectral sensitivity with high efficiency of red and blue and low or nil efficiency of FR might be a common feature of anthocyanin production in systems with a low phytochrome content and dependent on photosynthetic activity for the expression of the response.

(Received January 6, 1984; Accepted June 30, 1984)
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