Work

Minimization of 1-Methylcyclopropene Concentration to Regulate Cell Wall Metabolism of ‘Arisoo’ and ‘Picnic’ Apples in Cold Storage

Year: 2022

Type: article

Abstract: Cell wall constituents and cell wall hydrolase (CWH) enzyme activities play crucial roles in extending the postharvest storability of apples.1-Methylcyclopropene (1-MCP) has been extensively used to regulate cell wall metabolism of apples during storage.However, the consequences of 1-MCP can differ according to its concentration and the cultivar being treated.In this study, we investigated how 1-MCP concentrations (0.5 and 1.0 µL•L -1 ) regulate the cell wall components and the activities of CWH in two new apple cultivars, 'Arisoo' and 'Picnic', during their cold storage.In 1-MCP-treated fruits, uronic acid (UAC) and total sugar contents (TSC) were significantly higher in 'Arisoo', but only UAC was significantly higher in 'Picnic', when compared with control fruits.1-MCP significantly inhibited CWH activities in both cultivars.The results observed between 0.5 and 1.0 µL•L -1 did not diverge obviously in 'Arisoo', however, 0.5 µL•L -1 generated better results over 1.0 µL•L -1 in 'Picnic'.Conclusively, the results suggest that it is economically more appropriate to use 0.5 µL•L -1 1-MCP to extend the postharvest storability of apples, especially 'Arisoo', because of its ability to delay the solubilization of fruit softening-related cell wall components and to suppress CWH enzyme activities.

Source: Horticultural Science and Technology

DOI: 10.7235/hort.20220037