Acropetal movement of auxin: dependence on temperature.
The amounts of radioactive indole-3-acetic acid that moved, both basipetally and acropetally, through short sections of bean epicotyl were measured at 15 degrees and 25 degrees C in the presence and absence of 2,3,5-triiodobenzoic acid. Low temperature and this second compound each inhibited acropetal efflux of indole 3-acetic acid more than they did the influx. Results are interpreted as supporting a metabolically dependent component of the acropetal movement of auxin in bean epicotyls.
D001565:Benzoates / Q000494:pharmacology*; D001693:Biological Transport, Active / Q000187:drug effects*; D003864:Depression, Chemical; D004058:Diffusion; D007210:Indoleacetic Acids / Q000378:metabolism*; D007455:Iodine / Q000494:pharmacology*; D010937:Plant Growth Regulators / Q000378:metabolism*; D010945:Plants, Edible / Q000378:metabolism*; D013696:Temperature
D001565:Benzoates; D007210:Indoleacetic Acids; D010937:Plant Growth Regulators; D007455:Iodine