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Novel Applications of Exogenous Melatonin on Cold Stress Mitigation in Postharvest Cucumbers by Qianting Liu; Dandan Xin; Linjie Xi; Tingting Gu; Zhen Jia; Boce Zhang; Liping Kou is a Agricultural and Biological Sciences article available to read on EtoBox.

What is Novel Applications of Exogenous Melatonin on Cold Stress Mitigation in Postharvest Cucumbers about?

This study aims to investigate the effect of exogenous melatonin (EMT) on cold injury (CI) and the physiological indicators of cucumbers under refrigerated conditions (2 °C). After being treated with different concentrations (0, 50, 100, and 500 μmol L−1) of EMT, the postharvest cucumbers were stored at 2 °C. During storage, cucumbers were collected at designed intervals (0, 3, 6, 9, and 12 d) and rewarmed for 2 days at room temperature (20–22 °C). The impacts of EMT were evaluated by periodically monitoring the changes in chilling injury index and physiological properties including weight loss rate, respiratory intensity, tissue electrolyte leakage, malondialdehyde (MDA) content, vitamin C, soluble protein content, free proline, and reactive oxygen species. Compared with the control, the treatment of EMT at the concentration of 100 μmol L−1 could significantly improve the contents of soluble protein, vitamin C, and free proline content and inhibit the rise of chilling injure index, weight loss rate, respiration intensity, tissue electrolyte leakage, MDA content, and reactive oxygen species. In addition, the results indicated that EMT treatment at a specific level (100 μmol L−1) ha

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Author

Qianting Liu; Dandan Xin; Linjie Xi; Tingting Gu; Zhen Jia; Boce Zhang; Liping Kou

Publisher

Elsevier BV

Published

2022

Language

EN

Field

Agricultural and Biological Sciences (Life Sciences)