In vivo binding of auxin to the plasmalemma and tonoplast of parenchymal cells in the wheat coleoptile
β Scribed by Perbal, G
- Book ID
- 122823187
- Publisher
- Portland Press
- Year
- 1988
- Tongue
- English
- Weight
- 840 KB
- Volume
- 62
- Category
- Article
- ISSN
- 0248-4900
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A binding site for auxins was found in the 50,000g pellet from a homogenate of shoots from dark-grown wheat seedlings. The optimum conditions for the binding of native auxin, IAA, were within the range of physiological conditions of growth (pH 5.2, temperature 20Β°C). The binding site displayed a hig
We have compared the effects of the auxin, indole-3-acetic acid (IAA) with that of other weak acids on the plasma-membrane potential of oat (Arena sativa L.) coleoptile cells. Cells treated with ] gM IAA at pH 6 depolarize 20-25 mV in ]0-12min, but they then repolarize, until by 20-25 rain their pot