INDOLEACETIC-NICOTINIC ACID INTERACTIONS IN THE ETIOLATED PEA PLANT
نویسندگان
چکیده
منابع مشابه
Effects of Calcium, Indoleacetic Acid & Distance From Stem Apex on Potassium & Rubidium Absorption by Excised Segments of Etiolated Pea Epicotyl.
The enhancing effect of Ca on K uptake by excised roots has been known for some time (25) and has been referred to as the Viets effect; however, whether or not such an enhancement occurs in stem tissue has not been established. Indoleacetic acid (IAA) may enhance Rb uptake by stem segments (11) and this effect in Jerusalem artichoke tuber tissue has been attributed to an increase in capacity of...
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...
متن کاملA red-far red reversible effect on uptake of exogenous indoleacetic Acid in etiolated rice coleoptiles.
The uptake and accumulation of exogenous indoleacetic acid-(14)C by intact rice coleoptiles were examined. The absorption of exogenous indoleacetic acid was controlled by phytochrome, while the subsequent accumulation of this indoleacetic acid in various portions of the coleoptile was complex, and the effect of red light in this system was small compared to the alteration of the uptake of indol...
متن کاملThe effect of water stress on indoleacetic Acid oxidase in pea plants.
Activity of indoleacetic acid oxidase was shown to increase following a period of water stress. Two fractions of indoleacetic acid oxidase were extracted from plant extracts. Similarly, two protein peaks (determined by ultraviolet absorption) were isolated. One peak, associated with an indoleacetic acid oxidase peak, increased following water stress. The second peak, not associated with extract...
متن کاملExperimental Coupling of Indoleacetic Acid to Pea Root Protein In Vivo and In Vitro.
that the molecular structure of an auxin may control its activity in growth by influencing the reaction reported here. On the basis of these experiments it is proposed that auxin may act in plant growth and metabolism at least in part by reacting with coenzyme A. It may be assumed that the reaction product is a high-energy ester like the thiol-esters of other acids with coenzyme A. From its pos...
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ژورنال
عنوان ژورنال: Plant Physiology
سال: 1949
ISSN: 0032-0889,1532-2548
DOI: 10.1104/pp.24.4.577