Abstract
Fluoresceins are shown to be effective inhibitors of indoleacetic acid transport as measured by the receiver agar block technique, eosin having the same order of activity as 2,3,5-triiodobenzoic acid and N-1-naphthylphthalamic acid, with fluorescein less effective. It is suggested that many of their characteristic effects on plants, especially those which involve auxin, are at least partially due to their effects on auxin transport.
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Selected References
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