Uptake of Indole-3-acetic Acid and Indole-3-acetonitrile by Avena Coleoptile Sections
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چکیده
منابع مشابه
The Nitrilase ZmNIT2 converts indole-3-acetonitrile to indole-3-acetic acid.
We isolated two nitrilase genes, ZmNIT1 and ZmNIT2, from maize (Zea mays) that share 75% sequence identity on the amino acid level. Despite the relatively high homology to Arabidopsis NIT4, ZmNIT2 shows no activity toward beta-cyano-alanine, the substrate of Arabidopsis NIT4, but instead hydrolyzes indole-3-acetonitrile (IAN) to indole-3-acetic acid (IAA). ZmNIT2 converts IAN to IAA at least se...
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Science, a weekly journal, Is published each Friday by the American Association for the Advancement of Science at The Business Press, Incorporated, N. Queen St. and McGovern Ave., Lancaster, P'a. Founded In 1880. it has been since 1900 the official publication of the AAAS. Editorial and Advertising Offices, 1515 Massachusetts Avenue, N.W.. Washington 5, D. C. Telephone, EXecutive 80 or 661. Cab...
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Microelectrodes were used to measure simultaneously the effects of indole-3-acetic acid (IAA) on membrane potential and cytosolic pH of corn coleoptile cells. IAA caused an initial depolarization followed by hyperpolarization, the latter displaying rhythmic oscillations. The extent of the changes in membrane potential was dependent on IAA concentration, and hyperpolarization, but not depolariza...
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Cycloheximide inhibits polar indoleacetic acid transport in midrib tissues of leaves of citrus (Citrus sinensis [L.] Osbeck) and poplar (Populus deltoides Bartr.) as measured by the donor-receiver agar cylinder technique. It appears that the mechanism of auxin transport inhibition by cycloheximide consists in arresting protein synthesis and not in the disruption of energy flow. The interpretati...
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This paper reports an effect of indole-3-acetic acid on cell membrane potentials. Solutions with increasing IAA concentrations (from 109 to 10-7 M) make membrane potentials of coleop-tile cells more negative. This effect of IAA, which occurs at concentrations that also stimulate tissue elongation, was found inadvertently in the course of an experiment on the effect of IAA on cell wall potential...
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ژورنال
عنوان ژورنال: Plant Physiology
سال: 1964
ISSN: 0032-0889,1532-2548
DOI: 10.1104/pp.39.1.98