scholarly journals Changes in Indoleacetic Acid Oxidase Isoenzymes in Tobacco Tissues after Treatment with 2,4-Dichlorophenoxyacetic Acid

1972 ◽  
Vol 49 (6) ◽  
pp. 957-960 ◽  
Author(s):  
T. T. Lee
Keyword(s):  
Indoleacetic Acid ◽  
Dichlorophenoxyacetic Acid ◽  
Acid Oxidase ◽  
Indoleacetic Acid Oxidase ◽  
2,4 Dichlorophenoxyacetic Acid

scholarly journals Effect of Manganese Toxicity on the Indoleacetic Acid Oxidase System of Cotton

1966 ◽  
Vol 41 (4) ◽  
pp. 718-724 ◽  
Author(s):  
Page W. Morgan ◽  
Howard E. Joham ◽  
J. V. Amin
Keyword(s):  
Indoleacetic Acid ◽  
Manganese Toxicity ◽  
Acid Oxidase ◽  
Oxidase System ◽  
Indoleacetic Acid Oxidase

Studies of a Quinyl-p-coumarate in the Pineapple Plant (Ananas comosus var. cayenne)

1959 ◽  
Vol 12 (2) ◽  
pp. 240 ◽  
Author(s):  
GK Sutherland ◽  
WA Gortner
Keyword(s):  
Indoleacetic Acid ◽  
Spectral Characteristics ◽  
Periodate Oxidation ◽  
Quinic Acid ◽  
Ananas Comosus ◽  
Acid Oxidase ◽  
Coumaric Acid ◽  
Indoleacetic Acid Oxidase ◽  
Acid Lactone ◽  
Mild Hydrolysis

An ester is found in small concentrations in vegetative pineapple plants, with spectral characteristics in the ultraviolet of an ester of p-coumaric acid. p-Coumaric acid is obtained after hydrolysis, and the remaining aqueous hydrolysate indicates the presence of quinic acid lactone on chromatograms. On the basis of neutral equivalent determinations, boric acid conductivity and periodate oxidation experiments, and analyses following mild hydrolysis, the structure of the ester is suggested to be a quinyl-di-p-coumarate. It serves in the plant as a cofactor for pineapple indoleacetic acid oxidase.

scholarly journals Dehydration of Macromolecules I. Effect of Dehydration-Rehydration on Indoleacetic Acid Oxidase, Ribonuclease, Ribulosediphosphate Carboxylase, and Ketose-1-Phosphate Aldolase

1973 ◽  
Vol 26 (3) ◽  
pp. 591 ◽  
Author(s):  
B Darbyshire ◽  
BT Steer
Keyword(s):  
Water Potential ◽  
Indoleacetic Acid ◽  
Acid Oxidase ◽  
Enzyme Preparations ◽  
Water Potentials ◽  
Membrane Technique ◽  
Indoleacetic Acid Oxidase

A pressure-membrane technique has been developed to physically manipulate the water potential of in vitro enzyme preparations. Enzyme preparations were subjected to a range of water potentials using this technique.

scholarly journals Reversion of Senescence: Effects of 2,4-Dichlorophenoxyacetic Acid and Indoleacetic Acid on Respiration, Ethylene Production, and Ripening of Banana Fruit Slices

1969 ◽  
Vol 22 (3) ◽  
pp. 601 ◽  
Author(s):  
M Vendrell
Keyword(s):  
Aqueous Solutions ◽  
Ethylene Production ◽  
Indoleacetic Acid ◽  
Dichlorophenoxyacetic Acid ◽  
Banana Fruit ◽  
Unripe Fruit ◽  
2,4 Dichlorophenoxyacetic Acid

Slices cut from green, unripe fruit were treated by infiltration with aqueous solutions of 2,4�dichlorophenoxyacetic acid (2,4�D) and indoleacetic acid (lAA). 2,4.D delayed but increased the size of those peaks in respiration and ethylene production which are induced by cutting; ripening was also delayed. These effects were proportional to concentrations of 2,4.D in the range 1O-LlO-3M. Higher concentrations caused injury.

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