Title: Comparative effects of indole-3-acetic acid and 3-methyleneoxindole on intact lentil root elongation
Abstract: The suggestion that auxin inhibition of root elongation is mediated by 3-methyleneoxindole (3-MO) has been tested using purified 3-MO and a new type of root auxanometer. The data show that indoleacetic acid (IAA) at concentrations as low as 10−8 M rapidly and strongly inhibits intact lentil root elongation. By contrast, 3-MO was found to be ineffective as an inhibitor of root elongation at concentrations 100 to 1000-fold higher. Furthermore, chlorogenic acid, which is thought to interfere with the metabolism of IAA to 3-MO, was found to have no effect on intact lentil root elongation or on the inhibition of root elongation by IAA. It is concluded that 3-MO does not mediate the inhibitory effect of auxin on intact lentil root elongation.
Publication Year: 1976
Publication Date: 1976-12-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 9
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