.6 °F). Each treatment had four replicates; 1 mg·L −1 = 1 ppm, 1 mg·g −1 = 1000 ppm. Papaya fruit had a quadratic decrease in weight loss in response to increasing Ca concentrations at 4000 to 5400 mg·L −1 Ca ( Fig. 6A ). Ca may increase cell wall
. Plants have various antioxidant metabolites and enzymes to cope with the ROS. Peroxidase (POD) is an antioxidant enzyme that can scavenge H 2 O 2 . Research has shown that H 2 O 2 and POD are involved in cell wall stiffening during plant hypersensitive
here does not use water-containing solvents. In fact, pigments diffused but remained in the petals of dehydrated flowers. Some pigments such as flavonoids may get deposited on cell walls ( Markham et al., 2000 ). In this protocol, ethyl alcohol and
fungal polygalacturonase enzymes by forming cation cross bridges between pectin acids in the plant cell walls. Souza et al. (1999 , 2001 ) reported that postharvest application of calcium chloride solution into wounds of ‘Buiti’ peaches promoted Ca
-induced strengthening of cell walls (PQ Corporation, 2003 ). Larcher et al. (1991) suggested that low supercooling points noted in chinese windmill palm may have been due at least in part to cell walls strengthened with silica. Thus, a topical spray designed to
size of this variety. Being firmer than the control, GA 3 -treated fruit can be harvested at a later date than the untreated fruit. Literature cited Andrews, P.K. Shulin, L. 1995 Cell wall hydrolytic enzyme activity during development of nonclimacteric
softening associated with higher rates of NAA. The reduction in fruit drop following preharvest NAA sprays was associated with reduced expression of genes involved in cell wall degradation (MdPG2 and MdEG1) in the fruit abscission zone ( Li and Yuan, 2008
softening in sweet cherry fruit and GA 3 may uphold fruit firmness by decreasing activities of these cell wall hydrolytic enzymes ( Andrews and Shulin, 1995 ). PGR treatments did not affect SSC in this study. Although GA applications significantly increased
released by the vacuole resulting in the production of dark coloration associated with a bruise. Bruising may also lead to the leakage of cellular water into the cell wall leading to water-soaked areas ( Fig. 2 ) and release of enzymes into the cell wall
.21273/JASHS.129.5.0752 Jeong, J. Huber, D.J. 2004 Suppression of avocado ( Persea americana Mill.) fruit softening, and changes in cell wall matrix polysaccharides and enzyme activities: Differential responses to 1-MCP and delayed ethylene application J. Amer