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Plant Physiology 58:722-725 (1976)
© 1976 American Society of Plant Biologists

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Articles

Polygalacturonases Release Cell-Wall-bound Proteins 1

Larry L. Strand, Carol Rechtoris and Harry Mussell

Boyce Thompson Institute, Yonkers, New York 10701

Purified polygalacturonases from two fungi released proteins from wall fractions prepared from three plant species. Peroxidase activity was associated with the proteins released from the cell walls, and several of the protein fractions released contained hydroxyproline. Cellulase, purified free of pectic enzyme activity, was ineffective in releasing cell wall proteins. Specific inhibition of endopolygalacturonase activity prevented release of the proteins.

1 Work supported in part by United States Department of Agriculture, CSRS Grant No. 316-15-42.






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ASPB Publications PLANT PHYSIOLOGY THE PLANT CELL
Copyright © 1976 by the American Society of Plant Biologists