Application of γ-Aminobutyric Acid Treatment Differently Affects Physicochemical Characteristics of Tomato Fruits during Post-harvest Storage

The quality of tomato fruit, from harvest to human consumption, requires a lengthy period for shipping, storing, and marketing. γ-aminobutyric acid (GABA) is good candidate because it natural substance produced by plants defend themselves against stress conditions. In this study, the effect post-harvest GABA treatments at 0 (control), 5 mM and, 20 on physical biochemical properties polysaccharide content tomatoes during 28 days storage were investigated. Our results indicated that treatment increased firmness shelf-life maintaining integrity fruits compared control treated fruits. with decreased amount WSP expression cell wall related genes Pectate lyase (PL) Polygalacturonase (PG). There was not clear difference in colour index (CI) values among all groups end storage. Moreover, also showed somewhat less ethylene production, respiration rate level two synthesis ACS2 ACS4 towards These suggested could be beneficial strategy morphological under