Changes in Indoleacetic Acid Oxidase Isoenzymes in Tobacco Tissues after Treatment with 2,4-Dichlorophenoxyacetic Acid
نویسندگان
چکیده
منابع مشابه
Changes in indoleacetic Acid oxidase isoenzymes in tobacco tissues after treatment with 2,4-dichlorophenoxyacetic Acid.
2,4-Dichlorophenoxyacetic acid had a multiple effect on the development of indoleacetic acid oxidase isoenzymes in tobacco callus tissues (Nicotiana tabacum, cv. White Gold) cultured in vitro, and the development of these isoenzymes was differentially associated with growth promotion or inhibition depending on the concentration of 2,4-dichlorophenoxyacetic acid. At low concentrations (0.1 to 1 ...
متن کاملPromotion of indoleacetic Acid oxidase isoenzymes in tobacco callus cultures by indoleacetic Acid.
Indoleacetic acid oxidase in tobacco callus cultures (Nicotiana tabacum L., cv. White Gold) was composed of at least two groups of isoenzymes, which were distinctly different in electrophoretic mobilities and in responses to growth substances. Indoleacetic acid had dual effects; at low concentrations it promoted the development of two fast-migrating indoleacetic acid oxidase isoenzymes, but at ...
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Tang and Bonner (16) have described an indoleacetic acid (IAA) oxidase system in pea epicotyls, and also an IAA oxidase inhibitor (17). These findings have been confirmed and extended by others (5-8, 18) and an IAA oxidase has been found in several plants, including beans (18) and pineapple leaf tissue (9). The presence of an inhibitor of IAA oxidation has not previously been shown in the pinea...
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چکیده ندارد.
15 صفحه اولEffect of 2,4-dichlorophenoxyacetic Acid on Meristematic Tissues of Corn.
In recent years the use of 2,4-dichlorophenoxyacetic acid (2,4-D) as a selective herbicide has become increasingly important in the production of small grains and corn. Yield reductions due to direct injury to the crops are usually small. However, severe yield reductions have occurred occasionally when 2,4-D was used at herbicidal dosages during certain stages of crop growth. Corn plants spraye...
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ژورنال
عنوان ژورنال: Plant Physiology
سال: 1972
ISSN: 0032-0889,1532-2548
DOI: 10.1104/pp.49.6.957