Rhizomorph exudate of Armillaria mellea

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Abstract
Droplets of exudate from rhizomorphs of A. mellea, grown on carrot agar, grew larger in size and darkened with age. The exudate contains free amino acids, protein and inorganic elements, but no oxalic acid was detected. .beta.-Glucosidase, peroxidase, polyphenoloxidase and acid and alkaline protease activities were also detected. Gel electrophoresis was used to analyze the dark brown exudate. A single dark brown band was obtained using the disc gel procedure, whereas many brown bands were formed using the isoelectric focusing technique.