Chemically defined liquid media were devised which supported
excellent growth of Taphrina cerasi and T. deformans. When grown
in fermentation culture vessels, T. cerasi and T. deformans released
cytokinins into the liquid media. The presence of these cell division
factors was demonstrated with the soybean tissue assay which is
specific...
Certain plant-associated prokaryotes such as Corynebacteriurn
fascians and Agrobacterium tumefaciens are known to produce substantial
levels of cytokinins. In view of the fragmentary and
presumptive evidence available on the quantitative and qualitative
levels of cytokinins produced by A. tumefaciens, it was decided to
conduct a study of the cytokinins produced...