In this study, the mechanism hired by melatonin treatments (0, 1, 10, 100 and 1000 mu M) for conferring chilling tolerance in pomegranate fruit during storage at 4 degrees C for 120 days was explored. Melatonin treatment at 100 mu M meaningfully conferred chilling tolerance in pomegranate fruit manifesting by lower husk browning accompanying by higher membrane integrity representing by lower electrolyte leakage and malondialdehyde (MDA) accumulation. Higher membrane integrity in pomegranate fruit treated with melatonin may arise from lower H2O2 accumulation owing to higher reactive oxygen species (ROS) scavenging enzymes catalase (CAT), superoxide dismutase (SOD), ascorbate peroxidase (APX) and glutathione reductase (GR) activity. In addition to higher ROS scavenging enzymes activity, higher membrane integrity in pomegranate fruit treated with melatonin may ascribe to lower membrane degrading enzymes phospholipase D (PLD) and lipoxygenase (LOX) activity. Also, higher phenols accumulation giving rise to higher DPPH scavenging capacity arising from higher phenylalanine ammonia-lyase (PAL) enzyme activity concomitant with lower polyphenol oxidase (PPO) enzyme activity may be vital for conferring chilling tolerance in pomegranate fruit by exogenous melatonin applying. Accordingly, exogenous melatonin applying serves as a safe beneficial strategy for conferring chilling tolerance in pomegranate fruit during cold storage.
机构:
College of Food Science and Engineering, Hainan University, Haikou
Key Laboratory of Food Nutrition and Functional Food of Hainan Province, Haikou
Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, HaikouCollege of Food Science and Engineering, Hainan University, Haikou
Liu J.
Zhang Y.
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College of Food Science and Engineering, Hainan University, HaikouCollege of Food Science and Engineering, Hainan University, Haikou
Zhang Y.
Liu L.
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College of Food Science and Engineering, Hainan University, HaikouCollege of Food Science and Engineering, Hainan University, Haikou
Liu L.
Chen Y.
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College of Food Science and Engineering, Hainan University, HaikouCollege of Food Science and Engineering, Hainan University, Haikou
Chen Y.
Meng L.
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机构:
College of Food Science and Engineering, Hainan University, Haikou
Key Laboratory of Food Nutrition and Functional Food of Hainan Province, HaikouCollege of Food Science and Engineering, Hainan University, Haikou
Meng L.
Hu M.
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Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, HaikouCollege of Food Science and Engineering, Hainan University, Haikou
Hu M.
Jiang Y.
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South China Botanical Garden, Chinese Academy of Sciences, GuangzhouCollege of Food Science and Engineering, Hainan University, Haikou
Jiang Y.
Zhang Z.
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机构:
College of Food Science and Engineering, Hainan University, Haikou
Key Laboratory of Food Nutrition and Functional Food of Hainan Province, HaikouCollege of Food Science and Engineering, Hainan University, Haikou
机构:
ARO, Volcani Ctr, Dept Postharvest Sci Fresh Prod, POB 15159, IL-7505101 Rishon Leziyyon, Israel
Hebrew Univ Jerusalem, Robert H Smith Fac Agr Food & Environm Qual Sci, IL-76100 Rehovot, IsraelARO, Volcani Ctr, Dept Postharvest Sci Fresh Prod, POB 15159, IL-7505101 Rishon Leziyyon, Israel
Kashash, Yael
Doron-Faigenboim, Adi
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ARO, Dept Genom & Bioinformat, Volcani Ctr, POB 15159, IL-7505101 Rishon Leziyyon, IsraelARO, Volcani Ctr, Dept Postharvest Sci Fresh Prod, POB 15159, IL-7505101 Rishon Leziyyon, Israel
Doron-Faigenboim, Adi
Bar-Ya'akov, Irit
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ARO, Newe Yaar Res Ctr, Dept Fruit Tree Sci, POB 1021, IL-30095 Ramat Yishay, IsraelARO, Volcani Ctr, Dept Postharvest Sci Fresh Prod, POB 15159, IL-7505101 Rishon Leziyyon, Israel
Bar-Ya'akov, Irit
Hatib, Kamel
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ARO, Newe Yaar Res Ctr, Dept Fruit Tree Sci, POB 1021, IL-30095 Ramat Yishay, IsraelARO, Volcani Ctr, Dept Postharvest Sci Fresh Prod, POB 15159, IL-7505101 Rishon Leziyyon, Israel
Hatib, Kamel
Beja, Rotem
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ARO, Newe Yaar Res Ctr, Dept Fruit Tree Sci, POB 1021, IL-30095 Ramat Yishay, IsraelARO, Volcani Ctr, Dept Postharvest Sci Fresh Prod, POB 15159, IL-7505101 Rishon Leziyyon, Israel
Beja, Rotem
Trainin, Taly
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ARO, Newe Yaar Res Ctr, Dept Fruit Tree Sci, POB 1021, IL-30095 Ramat Yishay, IsraelARO, Volcani Ctr, Dept Postharvest Sci Fresh Prod, POB 15159, IL-7505101 Rishon Leziyyon, Israel
Trainin, Taly
Holland, Doron
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ARO, Newe Yaar Res Ctr, Dept Fruit Tree Sci, POB 1021, IL-30095 Ramat Yishay, IsraelARO, Volcani Ctr, Dept Postharvest Sci Fresh Prod, POB 15159, IL-7505101 Rishon Leziyyon, Israel
Holland, Doron
Porat, Ron
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ARO, Volcani Ctr, Dept Postharvest Sci Fresh Prod, POB 15159, IL-7505101 Rishon Leziyyon, IsraelARO, Volcani Ctr, Dept Postharvest Sci Fresh Prod, POB 15159, IL-7505101 Rishon Leziyyon, Israel