title: Alleviation of postharvest chilling injury of tomato fruit by salicylic acid treatment.
abstract: Tomato fruit at the mature green stage were treated with salicylic acid at different concentration (0, 1 and 2 mM) and analyzed for chilling injury (CI), electrolyte leakage (EL), malondialdehyde (MDA) and proline contents and phospholipase D (PLD) and lipoxygenase (LOX) activities during cold storage. PLD and LOX activities were significantly reduced by salicylic acid treatment. Compared with the control fruit, salicylic acid treatment alleviated chilling injury, reduced electrolyte leakage, malondialdehyde content and increased proline content. Our result suggest that the reduce activity of PLD and LOX, by salicylic acid may be a chilling tolerance strategy in tomato fruit. Inhibition of PLD and LOX activity during low temperature storage could ameliorate chilling injury and oxidation damage and enhance membrane integrity in tomato fruit.
authors.affiliation: Young Researchers Club, Ahar Branch, Islamic Azad University, Ahar, Iran.
authors.forename: Morteza Soleimani
authors.initials: MS
authors.lastname: Aghdam
authors.affiliation: Department of Horticulture, Faculty of Agriculture, Urmia University, Urmia, Iran.
authors.forename: Mohammadreza
authors.initials: M
authors.lastname: Asghari
authors.affiliation: Young Researchers Club, Ahar Branch, Islamic Azad University, Ahar, Iran.
authors.forename: Orojali
authors.initials: O
authors.lastname: Khorsandi
authors.affiliation: Department of Agronomy, Faculty of Agriculture, University of Tabriz, Tabriz, Iran.
authors.forename: Mehdi
authors.initials: M
authors.lastname: Mohayeji
keywords: Chilling injury; Postharvest; Salicylic acid; Tomato