Changes in Chemical Composition of the Leaves and Roots of Red Kidney Bean Plants Treated With 2, 4-Dichlorophenoxyacetic Acid

Effect of 2,4-Dichlorophenoxyacetic Acid on Proteolytic Activity of Red Kidney Bean Plants

“…It is of interest that the proteolytic activity determined with hemoglobin, glycylglycine and cystinyldiglycine substrates exhibited the same trends and that the differences between the treated and non-treated tissue were approximately of the same order of magnitude. The lower proteolytic activity in the treated leaf tissue was not surprising since there is a slightly lower amino acid content in the treated leaves (16). There was also evidence of an inhibition of the growth of the leaf tissue in the treated plants as compared to the controls.…”

The Influence of 2,4-Dichlorophenoxyacetic Acid on the Phosphorus Metabolism of Cranberry Bean Plants (Phaseolus vulgaris)

“…Sell et al (6,9) have reported that the greatest effect of 2,4-D upon the metabolism of red kidney bean plants occurred in the stem tissue resulting in an accumulation of protein. The data reported herein are in accord with this observation.…”

The Mode of Action of Foliage‐applied Translocated Herbicides With Particular Reference to the Phenoxy‐acid Compounds

“…Several workers have found that the nitrogen, amino-acid and protein content of the stems increased (e.g. Sell et al, 1949), possibly at the expense of the levels in leaves and roots (Weller et al, 1950). However, studies on Phaseolus vulgaris L. (Rebstock et al,, 1952) and on soybean (Freiberg & Clark, 1955) have shown that the increase in protein of stems is paralleled by an increased level of proteolytic enzymes and similarly that, in leaves, the concentrations of protein and digestive enzyme decrease together.…”