Studies on 3-Indoleacetic Acid Metabolism. V. Effect of Calcium Ions on 3-indoleacetic Acid Uptake and Metabolism by Pea Roots
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چکیده
منابع مشابه
Studies on 3-Indoleacetic Acid Metabolism. V. Effect of Calcium Ions on 3-indoleacetic Acid Uptake and Metabolism by Pea Roots.
It has previously been shown that indoleacetic acid (IAA) applied to pea roots is in part clegraded and in part conjugated witlh aspartic acid to form indoleacetylaspartic acicl (IAAspA) (2, 6). WVhile other workers (9) have reported that IAA applied to pea roots is metabolically bound to tissue protein to give a Salkowski reactive derivative, w\e have found no evidlence of such a complex. almo...
متن کاملStudies on 3-Indoleacetic Acid Metabolism. VI. 3-Indoleacetic Acid Uptake and Metabolism by Pea Roots and Epicotyls.
For several years we have studied the metabolism of applied indoleacetic acid (IAA) by plant tissues to determine whether growth stimulation or inhibition by IAA could be in any way related to its metabolism. So far we have been chiefly concerned with IAA metabolism by pea epicotyls, and in previous publications (2, 3, 4) have suggested that the toxic action of IAA might be related to the accum...
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The major effects of the gibberellins (GA) on plants have been reviewed recently (13, 14) but no definite linkage with any metabolic pathway has been established. In their study of photosynthesis in gibberellin treated leaves Haber and Tolbert (8) concluded that gibberellic acid neither enhanced the rate of CO2 fixation per unit of leaf tissue nor altered the general pathways of short time meta...
متن کاملRapid effects of indoleacetic Acid and ethylene on the growth of intact pea roots.
Root auxanometers were used to determine the growth rates of individual intact primary roots accurately and quickly. The growth of pea (Pisum sativum L.) roots was inhibited by both indoleacetic acid and ethylene within 20 minutes. A supramaximal concentration of ethylene inhibited root growth less than did 5 to 20 mum indoleacetic acid, indicating that inhibition of root growth by auxin was no...
متن کاملThe effect of 3-indoleacetic acid on the response of Lactobacillus arabinosus 17-5 to nicotinamide.
Lactobacillus arabinosus 17-5 has been widely used as an assay organism for nicotinic acid (NA) since the development of the method by Snell and Wright (1). Although it has been realized that other substances present in tissue extracts may interfere with the bioassay, the nature of such substances has not been elucidated. During an investigation of tryptophan metabolism in the pea plant, we stu...
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ژورنال
عنوان ژورنال: Plant Physiology
سال: 1960
ISSN: 0032-0889,1532-2548
DOI: 10.1104/pp.35.2.220