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Effect of substituted pyrazoles and related compounds on geotropism in cress seedlings |
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| Authors: | Art E Geissler John L Huppatz Gerard F Katekar |
| Abstract: | The effects on root geotropism of three series of compounds related to 2-phenyl-8H-pyrazolo5,1-a]isoindol-8-one (IV), its 3,3a-dihydro derivative (V) and 5-(2-carboxyphenyl)-3-phenylpyrazole (VI) have been assessed using cress seedlings. Compounds (IV) and (VI), and their derivatives, are highly active, destroying geotropism at concentrations of 10?7-10?9M. Substitution with various functional groups and increased molecular size resulted in only minor variation in the level of activity. |
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