Metabolism of 2,4-Dichlorophenoxyacetic Acid. I. C14O2 Production by Bean Plants Treated with Labeled 2,4-Dichlorophenoxyacetic Acids

Effect of 2,4-dichlorophenoxyacetic acid on utilization of labeled acetate by bean leaf & stem tissues.

AIn increase of C'4O., pro(luction from acetate-i-C'4 and acetate-2-C14 in corn roots by 2,4-D treatment has been reported; the percenitage increase was larger fronm the methbl carbon than from the carboxyl carbon (4). Usinig root tissues it was found that 2,4-D cause(d an increase in the amliouint of glucose catabolized via the pentose phosphate pathxway in root tissues (3). Whlen bean stem ti...

The Absorption and Translocation Of 2,4-Dichlorophenoxyacetic Acid by Bean Plants.

The compound 2,4-dichlorophenoxyacetic acid (2,4-D) and similar compounds applied locally to aerial parts of plantsmay cause responses in plant parts distant from the place of treatment. Such responses have been used by several investigators as a measure of the translocation of 2,4-D. These studies have produced an important body of evidence on growth-regulator translocation. It has been report...

Metabolism of 2,4-dichlorophenoxyacetic Acid in 2,4-dichlorophenoxyacetic Acid-resistant soybean callus tissue.

Three 2,4-dichlorophenoxyacetic acid (2,4-D) -resistant root callus tissue lines of Glycine max L. Merrill var. Acme were derived by culturing callus tissue 2 to 6 months on 40 milligrams per liter 2,4-D and designated 40R, 40B, and 40C. Tissue line 40R had a lower level of 2,4-D uptake in 2-week-old tissue which disappeared in 3.5-week-old tissue and less free 2,4-D following incubation for 24...

Changes in Chemical Composition of the Stems of Red Kidney Bean Plants Treated with 2, 4-dichlorophenoxyacetic Acid.

It has been shown (2, 5, 8, 11) that treatment of plants with 2, 4-D results in a reduction in carbohydrate content and an accumulation of nitrogen. Investigators (4, 6,) have reported that some plants sprayed with solutions of 2, 4-D develop enlarged and proliferated tissues, noted primarily in the stems. It has also been observed that some plants which were sprayed with 2, 4-D and which devel...

Metabolites of 2,4-dichlorophenoxyacetic acid from bean stems.