

Dithiocarbamates_ 
Dimethyldithiocarbamate 
Ethylene bis (dithiocarbamate) 
Methyldithiocarbamate 
Dimethyldithiocarbamate (DDC) 
Ferric Salt (Ferbam) 
Sodium Salt (NaDDC) 
Zinc Salt (Ziram) 
(See also TMTD and TTD) 
NaDDC 
After uptake of the fungicide sodium dimethyldithiocarbamate by the 
roots of cucumber plants, three other fungitoxic agents could be dis- 
tinguished on paper chromatograms. Studies with bean plants gave similar 
results. Incubation of potato chips in a solution of dimethyldithiocar- 
bamate produced two of the compounds. One of these was identified by 
ultraviolet, infra-red, and optical rotation as: dimethyldithiocarbamate-s- 
glucoside. By similar methods, another compound was isolated and identified 
as §-(dimethylthiocarbamoylthio)alanine. A third compound was identified as 
optically active thiazolidine-2-thione-4-carboxylic acid. This latter 
probably arises through non-enzymatic decomposition of the alanine deriva- 
tive (361, 362, 363, 364, 365, 766, 761, 1301). 
From suspensions of yeast cells (Saccharomyces cerevisiae) and 
sodium dimethyldithiocarbamate, a compound identified as y-(dimethyl- 
thiocarbamoylthio)-a-aminobutyric acid was isolated. Another unstable 
compound, thought to be the corresponding keto acid, was found but not 
completely identified. Similar results were obtained with many other soil 
microorganisms. A scheme involving Cysteine and homoserine was proposed 
(1301, 1304). 
DDC, labeled with c!4 in the methyl groups and $35 in the dithiocar- 
bamate, was applied to leaves and roots of papaya seedling (Carica Papaya) 
as the potassium or zinc salt. Part of the auugPerde was hydrolyzed to CS9 
and dimethylamine. An appreciable amount of ss appeared in the sulfur 
amino acids, free and in protein, and an inorganic sulfate. clio, was 
collected and some C!* was found in many plant constituents. The largest 
amount of foliarly applied radioactivity was recovered from cell sap as 
dimethyldithiocarbamyl glucoside. Lesser amounts were present as dimethyl- 
dithiocarbamyl alanine and four other compounds not identified (1557). 
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