Accession Number : AD0762111


Title :   Gibberellic Acid Induced Leaf Abscission in the Bean Plant.


Descriptive Note : Technical rept. Jan-Nov 72,


Corporate Author : EDGEWOOD ARSENAL ABERDEEN PROVING GROUND MD


Personal Author(s) : Leather,Gerald R. ; Forrence,Leonard E.


Report Date : APR 1973


Pagination or Media Count : 13


Abstract : The action mechanism of gibberellic acid during abscission of bean leaves was studied. Three phenomena that occur during the abscission process were experimentally monitored to ascertain any alteration induced by gibberellic acid: (1) ethylene production, (2) cellulase synthesis, and/or (3) cellulase secretion. No increase in ethylene production was noted. Results show an increase in cellulase synthesis induced by gibberellic acid with a subsequent increase in secretion of this enzyme. (Author)


Descriptors :   (*PLANTS(BOTANY), *GROWTH SUBSTANCES), HORMONES, ENZYMES, PHYSIOLOGY, BIOCHEMISTRY, ETHYLENES, CELLULOSE, BIOSYNTHESIS


Subject Categories : ANATOMY AND PHYSIOLOGY


Distribution Statement : APPROVED FOR PUBLIC RELEASE