Thirteen natural and synthetic phenylpropanoids as well as coumarin (2×104M) were tested for their biological activity on radish germination and subsequent root growth in light and darkness. Coumarin was the most potent inhibitor. With some exceptions, phenylpropanoids with a carboxylic group in the side chain inhibited root growth. Coumarin was formed spontaneously by photooxidation of 2-hydroxycinnamic acid. Microscopic observations of root treated with coumarin suggest that this substance inhibits the elongation of cells of the differentiating zone of the root. © 1993 Plenum Publishing Corporation.
Inhibition of radish germination and root growth by coumarin and phenylpropanoids
FIORENTINO, Antonio;STRUMIA, Sandro
1993
Abstract
Thirteen natural and synthetic phenylpropanoids as well as coumarin (2×104M) were tested for their biological activity on radish germination and subsequent root growth in light and darkness. Coumarin was the most potent inhibitor. With some exceptions, phenylpropanoids with a carboxylic group in the side chain inhibited root growth. Coumarin was formed spontaneously by photooxidation of 2-hydroxycinnamic acid. Microscopic observations of root treated with coumarin suggest that this substance inhibits the elongation of cells of the differentiating zone of the root. © 1993 Plenum Publishing Corporation.File in questo prodotto:
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