Florian Lorenz

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Chick embryos ranging from the stage of first cleavage to that of about 700 cells were removed from the oviduct and examined by transmission electron microscopy. Beneath the cell membrane is yolk-free cortical region containing microfilaments. Beneath this lies cytoplasm which contains yolk spheres which are graded in size, the dorsal ones being smaller(More)
The long standing question of the source of methylglyoxal formed in glycolyzing tissues was considered. Nonbiological studies, made with chemical model systems, made evident that the formation of methylglyoxal from dihydroxyacetone and from Dr.-glyceraldehyde under physiological conditions of pH and temperature is catalyzed by Tris and by certain polyvalent(More)