1. BENSON, A. A., BASSHAM, J. A., CALVIN, M., GOODALE, T. C., HAAs, V. A. and STEPKA, W. The path of carbon in photosynthesis. V. Paper chromatography and radioautography of the products. Jour. Am. Chem. Soc. 72: 1710-1718. 1950. 2. FANG, S. C., JAWORSKI, E. G., LOGAN, A. V., FREED, V. H. and BuTrs, J. S. The absorption of radioactive 2,4-dichlorophenoxyacetic acid and the translocation of C"4 ...

Two light-sensitive analogs of 2,4-dichlorophenoxyacetic acid, namely 4-azido-2-chlorophenoxyacetic acid and 3-azido-5-chlorophenoxyacetic acid, have been synthesized for use as auxin photoaffinity labels. The preparation and biological activity of the compounds are described. Both contain the photolabile azido group; the 2,4-substituted compound shows auxin activity and the 3,5-substituted com...

A water-soluble transformation product of 2,4-D. Arch. Biochem. Biophys. 35: 171-175. 1952. 4. JAWORSKI, E. G. and BUTTS, J. S. Studies in plant metabolism. II. The metabolism of C'4 labeled 2,4-dichlorophenoxyacetic acid in bean plants. Arch. Biochem. Biophys. 38: 207-218. 1952. 5. MITCHELL, J. W. and BROW-N, J. W. Movement of 2,4-dichlorophenoxyacetic acid stimulus and its relation to the tra...

Using suspension-cultured Acer pseudoplatanus cells requiring 2,4-dichlorophenoxyacetic acid for growth, the dependence of the population doubling time and the maximum increase in cell population density on the auxin concentration was studied. It appears that in the range of 2,4-dichlorophenoxyacetic acid concentration from 4 x 10(-8) to 4 x 10(-6) M, the rate of cell division during the logari...

The transport of serine into tobacco cells (Nicotiana tabacum L.) cultured in liquid medium was examined. Transport was inhibited approximately 50% by 2,4-dichlorophenoxyacetic acid, indoleacetic acid, alpha-naphthalene acetic acid, and kinetin at a concentration of 10 micrograms per milliliter. Transport was not inhibited by 2,6-dichlorophenoxyacetic acid and inhibited less than 25% by p-chlor...

An efficient in vitro protocol has been established for somatic embryogenesis and plantlet conversion of Korean wild ginseng (Panax ginseng Meyer). Wild-type and mutant adventitious roots derived from the ginseng produced calluses on Murashige and Skoog (MS) medium supplemented with 0.5 mg/L 2,4-dichlorophenoxyacetic acid and 0.3 mg/L kinetin; 53.3% of the explants formed callus. Embryogenic ca...

An auxin-requiring soybean root callus metabolized [1-(14)C]-2,4-dichlorophenoxyacetic acid (2,4-D) to diethyl ether-soluble amino acid conjugates and water-soluble metabolites. The uptake in tissue varied with incubation time, concentration, and amount of tissue. Uptake was essentially complete (80%) after a 24-hour incubation and the percentage of free 2,4-D in the tissue fell to its lowest p...