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.

Salicylic Acid in Nutrient Solution Influence the Fruit Quality and Shelf Life of Cherry Tomato Grown in Hydroponics

“…In agreement with Mo et al (2008), we found that SA delays the ripening process by maintaining membrane integrity and decreasing ethylene production. In apples (Mo et al 2008) and tomatoes (Aghdam et al 2014), SA application increases the membrane integrity and firmness. Moreover, SA increases the Ca 2+ level in intercellular spaces and in plasma membranes of grape plants .…”

Influence of 1‐methylcyclopropene (1‐MCP) combined with salicylic acid (SA) treatment on the postharvest physiology and quality of bananas

“…So how can one prevent bananas from being damaged due to reactive oxygen species is an issue deserving serious consideration (Srivastava & Dwivedi, ). Salicylic acid (SA) is considered a vital signaling molecule which plays an important role in regulating disease resistance (Liu, Ma, Liu, Zhu, & Hao, ) and reducing the production rate of superoxide anions in fruits (Hao, ), such as kiwi (Fatemi, Mohammadi, & Aminifard, ), cherry (Dokhanieh, Aghdam, Fard, & Hassanpour, ), apple (Mo et al, ), tomato (Aghdam, Asghari, Khorsandi, & Mohayeji, ), mango (Pagadala Damodaram et al, ), and pear (Wang, Cao, Lin, Sun, & Jiang, ).…”

Genome-wide identification and expression analysis of lipoxygenase genes in Tartary buckwheat

“…Linolenic acid and linoleic acid are substrates of LOXs, and LOX activity is increased under low-temperature stress, resulting in a decreased content of linolenic acid and linoleic acid. Aghdam et al [14] found that the LOX activity increases when tomatoes are chilled. In tomato, chilling can improve the integrity of the cell membrane and enhance cold tolerance by reducing the activity of LOX [14].…”

“…Aghdam et al [14] found that the LOX activity increases when tomatoes are chilled. In tomato, chilling can improve the integrity of the cell membrane and enhance cold tolerance by reducing the activity of LOX [14]. LOXs can contribute to the degradation of storage lipids during seed germination [39].…”

“…Light is one of the essential factors for plants, not only for their photosynthesis but also as a trigger for plant growth and development and as an effector of plant regulatory processes. The expression of LOX is affected by light during growth and development; however, it varies greatly among different plants [14]. Illumination was shown to regulate 13-LOX in olives at the transcriptional level [15].…”