Photoperiodic control of phenolic metabolism in Kalanchoe blossfeldiana

When grown in conditions of long day length, the leaves of Kalanchoe blossfeldiana contain high levels of soluble phenolic compounds, mainly present as tannins. A decreasing concentration gradient is observed in the leaves from the apex to the base. When transferred to short day conditions, the abil...

Full description

Saved in:
Bibliographic Details
Published inPhytochemistry (Oxford) Vol. 18; no. 7; pp. 1159 - 1163
Main Authors Balsa, Chantal, Alibert, Gilbert, Brulfert, Jeanne, Queiroz, Orlando, Boudet, Alain M.
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 1979
Subjects
CAM
Crassulaceae
Kalanchoe blossfeldiana
phenolic compounds
phenolic metabolism
photoperiodism
tannins
Kalanchoe blossfeldiana
Crassulaceae
photoperiodism
phenolic compounds
tannins
phenolic metabolism
CAM
Online AccessGet full text

Cover

More Information
Summary:When grown in conditions of long day length, the leaves of Kalanchoe blossfeldiana contain high levels of soluble phenolic compounds, mainly present as tannins. A decreasing concentration gradient is observed in the leaves from the apex to the base. When transferred to short day conditions, the ability of leaves of the same physiological age to accumulate phenolics decreases with time. The very low phenolic content after 25 short days indicates pronounced changes in the metabolism of the plant induced by new photoperiodic conditions. Moreover, during development in short days the amount of tannins per leaf reaches a maximum then decreases suggesting an over-polymerization or even a degradation of the substances. A similar lag time is required for the depressing effect of short days on phenolies and for their stimulating effect on CAM.
ISSN:0031-9422
1873-3700
DOI:10.1016/0031-9422(79)80126-0