Changes in pectinesterase, polygalacturonase and cellulase activity during mango fruit ripening.
Abu-Sarra A. F., Abu-Goukh A. A.
Author Affiliation: Jebel Marra Rural Development Project, PO Box 9010, Khartoum, Sudan.
Journal of Horticultural Science 67 : 561-568
Abstract : Changes in the activities of the cell wall-degrading enzymes pectinesterase (PE), polygalacturonase (PG) and cellulase were studied during ripening of fruits of mango cultivars Kitchner, Dr Knight and Abu-Samaka. PE activity decreased throughout ripening in Kitchner and Dr Knight but increased in Abu-Samaka until fruit firmness reached 88 N before decreasing. PG and cellulase activities increased during ripening in all 3 cultivars. This increase in activity was highly correlated with the loss of fruit firmness.