Bacterium prodigiosum were separated from corrupt matsutakc mushrooms. Tests were carried out on their properties and how they could decarboxylate specifically histidine and phenylalanine. Bacterium prodigiosum were devided by the colors-red and white. The red one when pH=7.0, could decarboxylate histidine exceedingly; but the other could only a little. The white one, however, decarboxylated phenylalanine much more.
