Abscission: Role of Cellulase
Abstract
Cellulase activity increased during abscission and was localized in the cell separation layer of several plants. Cellulase activity was optimum at pH 7, was reduced by one-half after heating to 55C for 10 minutes, and was associated with the soluble components of the cell. Explants treated with aging retardants, CO2, actinomycin D, or cycloheximide had less cellulase activity when compared with untreated controls. Ethylene increased cellulase activity of aged explants after a 3-hour lag period. It was concluded that one of the roles of ethylene in abscission is to regulate the production of cellulase, which in turn is required for cell separation.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1968
- Accession Number
- AD0846991
Entities
People
- Frederick B. Abeles