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Gan Z, Zhang Y, Jin Z, Wang Y, Li J, Yang C, Cao Q, Chen J, Rong Z, Lu X, Guo S. Gum arabic coating alleviates chilling injury of cold-stored peach by regulating reactive oxygen species, phenolic, and sugar metabolism. Food Chem 2024; 455:139899. [PMID: 38823138 DOI: 10.1016/j.foodchem.2024.139899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Revised: 05/19/2024] [Accepted: 05/28/2024] [Indexed: 06/03/2024]
Abstract
In this study, gum arabic (GA) coating was employed to mitigate chilling injury in peach fruit, and it was observed that 10% GA coating exhibited the most favorable effect. GA coating significantly inhibited the decline of AsA content and enhanced antioxidant enzyme activity in peach fruit, thereby enhancing reactive oxygen species (ROS) scavenging rate while reducing its accumulation. Simultaneously, GA coating inhibited the activity of oxidative degradation enzymes for phenolics and enhanced synthase activity, thus maintaining higher levels of total phenolics and flavonoids in fruits. Additionally, compared to the control fruit, GA-coated fruits demonstrated higher concentrations of sucrose and sorbitol, accompanied more robust activity of sucrose synthase and sucrose phosphate synthase, as well as reduced activity of acid invertase and neutral invertase. Our study demonstrates that GA coating can effectively enhance the cold resistance of peach fruit by regulating ROS, phenolics, and sugar metabolism, maintaining high levels of phenolics and sucrose while enhancing antioxidant activity.
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Affiliation(s)
- Zengyu Gan
- Jiangxi Provincial Key Laboratory for Postharvest Storage and Preservation of Fruits & Vegetables, Jiangxi Agricultural University, Nanchang 330045, China
| | - Yupei Zhang
- Jiangxi Provincial Key Laboratory for Postharvest Storage and Preservation of Fruits & Vegetables, Jiangxi Agricultural University, Nanchang 330045, China
| | - Ziteng Jin
- Jiangxi Provincial Key Laboratory for Postharvest Storage and Preservation of Fruits & Vegetables, Jiangxi Agricultural University, Nanchang 330045, China
| | - Yongjie Wang
- Jiangxi Provincial Key Laboratory for Postharvest Storage and Preservation of Fruits & Vegetables, Jiangxi Agricultural University, Nanchang 330045, China
| | - Jiali Li
- Jiangxi Provincial Key Laboratory for Postharvest Storage and Preservation of Fruits & Vegetables, Jiangxi Agricultural University, Nanchang 330045, China
| | - Caining Yang
- Jiangxi Provincial Key Laboratory for Postharvest Storage and Preservation of Fruits & Vegetables, Jiangxi Agricultural University, Nanchang 330045, China
| | - Qing Cao
- Jiangxi Provincial Key Laboratory for Postharvest Storage and Preservation of Fruits & Vegetables, Jiangxi Agricultural University, Nanchang 330045, China
| | - Jinyin Chen
- Jiangxi Provincial Key Laboratory for Postharvest Storage and Preservation of Fruits & Vegetables, Jiangxi Agricultural University, Nanchang 330045, China
| | - Zhenbang Rong
- School of Electronics and Information Engineering, Wuyi University, Jiangmen 529020, China
| | - Xuming Lu
- School of Electronics and Information Engineering, Wuyi University, Jiangmen 529020, China.
| | - Suqin Guo
- School of Pharmacy and Food Engineering, Wuyi University, Jiangmen 529020, China.
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2
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Aghdam MS, Arnao MB. Phytomelatonin: From Intracellular Signaling to Global Horticulture Market. J Pineal Res 2024; 76:e12990. [PMID: 39030989 DOI: 10.1111/jpi.12990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2024] [Revised: 06/25/2024] [Accepted: 07/03/2024] [Indexed: 07/22/2024]
Abstract
Melatonin (N-acetyl-5-methoxytryptamine), a well-known mammalian hormone, has been having a great relevance in the Plant World in recent years. Many of its physiological actions in plants are leading to possible features of agronomic interest, especially those related to improvements in tolerance to stressors and in the postharvest life of fruits and vegetables. Thus, through the exogenous application of melatonin or by modifying the endogenous biosynthesis of phytomelatonin, some change can be made in the functional levels of melatonin in tissues and their responses. Also, acting in the respective phytomelatonin biosynthesis enzymes, regulating the expression of tryptophan decarboxylase (TDC), tryptamine 5-hydroxylase (T5H), serotonin N-acetyltransferase (SNAT), N-acetylserotonin O-methyltransferase (ASMT), and caffeic acid O-methyltransferase (COMT), and recently the possible action of deacetylases on some intermediates offers promising opportunities for improving fruits and vegetables in postharvest and its marketability. Other regulators/effectors such as different transcription factors, protein kinases, phosphatases, miRNAs, protein-protein interactions, and some gasotransmitters such as nitric oxide or hydrogen sulfide were also considered in an exhaustive vision. Other interesting aspects such as the role of phytomelatonin in autophagic responses, the posttranslational reprogramming by protein-phosphorylation, ubiquitylation, SUMOylation, PARylation, persulfidation, and nitrosylation described in the phytomelatonin-mediated responses were also discussed, including the relationship of phytomelatonin and several plant hormones, for chilling injury and fungal decay alleviating. The current data about the phytomelatonin receptor in plants (CAND2/PMTR1), the effect of UV-B light and cold storage on the postharvest damage are presented and discussed. All this on the focus of a possible new action in the preservation of the quality of fruits and vegetables.
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Affiliation(s)
| | - Marino B Arnao
- Phytohormones and Plant Development Laboratory, Department of Plant Biology (Plant Physiology), Faculty of Biology, University of Murcia, Murcia, Spain
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3
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Qian C, Sun Y, Zhang B, Shao Y, Liu J, Kan J, Zhang M, Xiao L, Jin C, Qi X. Effects of melatonin on inhibiting quality deterioration of postharvest water bamboo shoots. FOOD CHEMISTRY. MOLECULAR SCIENCES 2024; 8:100208. [PMID: 38883998 PMCID: PMC11178984 DOI: 10.1016/j.fochms.2024.100208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Revised: 04/21/2024] [Accepted: 05/25/2024] [Indexed: 06/18/2024]
Abstract
Water bamboo shoots (Zizania latifolia) is prone to quality deterioration during cold storage after harvest, which causes the decline of commodity value. Chlorophyll synthesis and lignin deposition are the major reasons for quality degradation. This paper studied the influence of exogenous melatonin (MT) on the cold storage quality of water bamboo shoots. MT treatment could delay the increase in skin browning, hardness and weight loss rate, inhibit chlorophyll synthesis and color change of water bamboo shoots, while maintain the content of total phenols and flavonoids, and inhibit lignin deposition by inhibiting the activity and gene expression of phenylpropanoid metabolism related enzymes as PAL, C4H, 4CL, CAD, and POD. The results indicate that exogenous MT treatment can effectively inhibit the quality degradation of cold stored water bamboo shoots.
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Affiliation(s)
- Chunlu Qian
- Department of Food Science and Engineering, School of Food Science and Engineering, Yangzhou University, Yangzhou, China
| | - Yan Sun
- Department of Food Science and Engineering, School of Food Science and Engineering, Yangzhou University, Yangzhou, China
| | - Bei Zhang
- Department of Food Science and Engineering, School of Food Science and Engineering, Yangzhou University, Yangzhou, China
| | - Yuyang Shao
- Department of Food Science and Engineering, School of Food Science and Engineering, Yangzhou University, Yangzhou, China
| | - Jun Liu
- Department of Food Science and Engineering, School of Food Science and Engineering, Yangzhou University, Yangzhou, China
| | - Juan Kan
- Department of Food Science and Engineering, School of Food Science and Engineering, Yangzhou University, Yangzhou, China
| | - Man Zhang
- Department of Food Science and Engineering, School of Food Science and Engineering, Yangzhou University, Yangzhou, China
| | - Lixia Xiao
- Department of Food Science and Engineering, School of Food Science and Engineering, Yangzhou University, Yangzhou, China
| | - Changhai Jin
- Department of Food Science and Engineering, School of Food Science and Engineering, Yangzhou University, Yangzhou, China
| | - Xiaohua Qi
- Department of Horticulture, College of Horticulture and Landscape Architecture, Yangzhou University, Yangzhou, China
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Lin Y, Chen J, Lin Y, Lin M, Wang H, Fan Z, Lu W, Chen Y, Lin H. DNP and ATP modulate the pulp softening and breakdown in fresh longan by acting on the antioxidant system and the metabolisms of membrane lipids and cell wall polysaccharides. Food Chem 2024; 460:140531. [PMID: 39059331 DOI: 10.1016/j.foodchem.2024.140531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 07/13/2024] [Accepted: 07/17/2024] [Indexed: 07/28/2024]
Abstract
Compared to the control longan, DNP treatment elevated pulp breakdown index, reduced the values of pulp firmness, CSP, ISP, cellulose, and hemicellulose by enhancing the activities of PE, PG, Cx, XET, and β-Gal. Additionally, DNP treatment increased the levels of PLD, lipase, LOX, PA, and SFA, and decreased the values of PC, PI, USFA, U/S, and IUFA, displaying higher cell membrane permeability and more severe cell membrane damage in longan pulp. Furthermore, DNP treatment weakened the levels of SOD, CAT, APX, AsA, GSH, TP, and TF, thereby exacerbating ROS outbreak and MDA production. These results indicate that DNP treatment destroyed the antioxidant system to cause ROS eruption. This disruption further disturbed the metabolisms of membrane lipids and cell wall polysaccharides, leading to the breakdown of cell membrane and cell wall, and eventually aggravated longan pulp softening and breakdown. However, ATP treatment exhibited the opposite effects of DNP treatment.
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Affiliation(s)
- Yifen Lin
- Institute of Postharvest Technology of Agricultural Products, College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China; Key Laboratory of Postharvest Biology of Subtropical Special Agricultural Products, Fujian Province University, Fuzhou, Fujian 350002, China
| | - Jin Chen
- Institute of Postharvest Technology of Agricultural Products, College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China; Key Laboratory of Postharvest Biology of Subtropical Special Agricultural Products, Fujian Province University, Fuzhou, Fujian 350002, China
| | - Yixiong Lin
- Institute of Postharvest Technology of Agricultural Products, College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China; Key Laboratory of Postharvest Biology of Subtropical Special Agricultural Products, Fujian Province University, Fuzhou, Fujian 350002, China; School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou, Fujian 363000, China
| | - Mengshi Lin
- Food Science Program, Division of Food, Nutrition & Exercise Sciences, University of Missouri, Columbia, MO 65211, United States
| | - Hui Wang
- Institute of Postharvest Technology of Agricultural Products, College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China; Key Laboratory of Postharvest Biology of Subtropical Special Agricultural Products, Fujian Province University, Fuzhou, Fujian 350002, China
| | - Zhongqi Fan
- Institute of Postharvest Technology of Agricultural Products, College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China; Key Laboratory of Postharvest Biology of Subtropical Special Agricultural Products, Fujian Province University, Fuzhou, Fujian 350002, China
| | - Wangjin Lu
- College of Horticulture, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - Yihui Chen
- Institute of Postharvest Technology of Agricultural Products, College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China; Key Laboratory of Postharvest Biology of Subtropical Special Agricultural Products, Fujian Province University, Fuzhou, Fujian 350002, China
| | - Hetong Lin
- Institute of Postharvest Technology of Agricultural Products, College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China; Key Laboratory of Postharvest Biology of Subtropical Special Agricultural Products, Fujian Province University, Fuzhou, Fujian 350002, China.
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5
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Kang L, Jia Y, Wu Y, Liu H, Zhao D, Ju Y, Pan C, Mao J. Selenium Nanoparticle and Melatonin Treatments Improve Melon Seedling Growth by Regulating Carbohydrate and Polyamine. Int J Mol Sci 2024; 25:7830. [PMID: 39063071 PMCID: PMC11276989 DOI: 10.3390/ijms25147830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2024] [Revised: 07/12/2024] [Accepted: 07/15/2024] [Indexed: 07/28/2024] Open
Abstract
Bio-stimulants, such as selenium nanoparticles and melatonin, regulate melon growth. However, the effects of individual and combined applications of selenium nanoparticles and melatonin on the growth of melon seedlings have not been reported. Here, two melon cultivars were sprayed with selenium nanoparticles, melatonin, and a combined treatment, and physiological and biochemical properties were analyzed. The independent applications of selenium nanoparticles, melatonin, and their combination had no significant effects on the plant heights and stem diameters of Jiashi and Huangmengcui melons. Compared with the controls, both selenium nanoparticle and melatonin treatments increased soluble sugars (6-63%) and sucrose (11-88%) levels, as well as the activity of sucrose phosphate synthase (171-237%) in melon leaves. The phenylalanine ammonia lyase (29-95%), trans cinnamate 4-hydroxylase (32-100%), and 4-coumaric acid CoA ligase (26-113%), as well as mRNA levels, also increased in the phenylpropanoid metabolism pathway. Combining the selenium nanoparticles and melatonin was more effective than either of the single treatments. In addition, the levels of superoxide dismutase (43-130%), catalase (14-43%), ascorbate peroxidase (44-79%), peroxidase (25-149%), and mRNA in melon leaves treated with combined selenium nanoparticles and melatonin were higher than in controls. The results contribute to our understanding of selenium nanoparticles and melatonin as bio-stimulants that improve the melon seedlings' growth by regulating carbohydrate, polyamine, and antioxidant capacities.
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Affiliation(s)
- Lu Kang
- Key Laboratory of National Forestry and Grassland Administration on Pest Chemical Control and Innovation Center of Pesticide Research, College of Science, China Agricultural University, Beijing 100193, China; (L.K.)
- State Key Laboratory of Desert and Oasis Ecology, Key Laboratory of Ecological Safety and Sustainable Development in Arid Lands, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China
- Institute of Agricultural Quality Standards and Testing Technology, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China
| | - Yujiao Jia
- Key Laboratory of National Forestry and Grassland Administration on Pest Chemical Control and Innovation Center of Pesticide Research, College of Science, China Agricultural University, Beijing 100193, China; (L.K.)
| | - Yangliu Wu
- School of Biological Science and Technology, University of Jinan, Jinan 250022, China
| | - Hejiang Liu
- Institute of Agricultural Quality Standards and Testing Technology, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China
| | - Duoyong Zhao
- Institute of Agricultural Quality Standards and Testing Technology, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China
| | - Yanjun Ju
- Institute of Agricultural Quality Standards and Testing Technology, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China
| | - Canping Pan
- Key Laboratory of National Forestry and Grassland Administration on Pest Chemical Control and Innovation Center of Pesticide Research, College of Science, China Agricultural University, Beijing 100193, China; (L.K.)
| | - Jiefei Mao
- State Key Laboratory of Desert and Oasis Ecology, Key Laboratory of Ecological Safety and Sustainable Development in Arid Lands, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China
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6
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Wang Z, Zhang Q, Bukvicki D, Xu Y, Peng Y, Li F, Zhang Q, Liu S, Yan J, Lin S, Qin W. Konjac glucomannan/microcapsule of thymol edible coating reduces okra pericarp browning by regulating antioxidant activity and ROS synthesis. Int J Biol Macromol 2024; 276:133641. [PMID: 38969046 DOI: 10.1016/j.ijbiomac.2024.133641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Revised: 06/12/2024] [Accepted: 07/01/2024] [Indexed: 07/07/2024]
Abstract
Okra is susceptible to browning during storage. The effects of konjac glucomannan/microcapsule of thymol edible coating (TKL) on antioxidant activity and reactive oxygen (ROS) synthesis of okra during low-temperature storage were investigated. Thymol edible coating of thymol concentration 40 mg/mL (TKL40) had a regulatory effect on okra browning. After 14 days of storage, compared with the control group, the weight loss rate of TKL was reduced by 5.26 %, the hardness was increased by 24.14 %, and the L⁎ value was increased by 31 %. Moreover, TKL40 increased the scavenging capacity of okra for DPPH and ABTS free radicals, and activated catalase and superoxide dismutase activities by promoting the accumulation of total phenolics and flavonoids. TKL40 also reduced the cell membrane damage of okra during low-temperature storage by reducing the increase of malondialdehyde and H2O2 during okra storage. Meanwhile, it delayed the increase of relative conductivity and the production of O2.-, inhibited the activity of polyphenol oxidase in the late stage, so reduced the combination of polyphenol oxidase and phenolics to reduce the browning. Therefore, TKL40 reduces okra pericarp browning by regulating antioxidant activity and ROS synthesis.
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Affiliation(s)
- Zhuwei Wang
- Sichuan Key Laboratory of Fruit and Vegetable Postharvest Physiology, College of Food Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, China
| | - Qinqiu Zhang
- Sichuan Key Laboratory of Fruit and Vegetable Postharvest Physiology, College of Food Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, China
| | - Danka Bukvicki
- Institute of Botany and Botanical Garden 'Jevremovac', Faculty of Biology, Belgrade University, Takovska 43, 11000 Belgrade, Republic of Serbia
| | - Yi Xu
- Sichuan Key Laboratory of Fruit and Vegetable Postharvest Physiology, College of Food Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, China
| | - Yue Peng
- Sichuan Key Laboratory of Fruit and Vegetable Postharvest Physiology, College of Food Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, China
| | - Fan Li
- Sichuan Key Laboratory of Fruit and Vegetable Postharvest Physiology, College of Food Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, China
| | - Qing Zhang
- Sichuan Key Laboratory of Fruit and Vegetable Postharvest Physiology, College of Food Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, China
| | - Shuxiang Liu
- Sichuan Key Laboratory of Fruit and Vegetable Postharvest Physiology, College of Food Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, China
| | - Jing Yan
- Sichuan Key Laboratory of Fruit and Vegetable Postharvest Physiology, College of Food Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, China
| | - Shang Lin
- Sichuan Key Laboratory of Fruit and Vegetable Postharvest Physiology, College of Food Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, China
| | - Wen Qin
- Sichuan Key Laboratory of Fruit and Vegetable Postharvest Physiology, College of Food Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, China.
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7
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Wang X, Wei Y, Jiang S, Ye J, Chen Y, Xu F, Shao X. Transcriptome analysis reveals that trehalose alleviates chilling injury of peach fruit by regulating ROS signaling pathway and enhancing antioxidant capacity. Food Res Int 2024; 186:114331. [PMID: 38729716 DOI: 10.1016/j.foodres.2024.114331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 03/29/2024] [Accepted: 04/16/2024] [Indexed: 05/12/2024]
Abstract
Peach fruit is prone to chilling injury (CI) during low-temperature storage, resulting in quality deterioration and economic losses. Our previous studies have found that exogenous trehalose treatment can alleviate the CI symptoms of peach by increasing sucrose accumulation. The purpose of this study was to explore the potential molecular mechanism of trehalose treatment in alleviating CI in postharvest peach fruit. Transcriptome analysis showed that trehalose induced gene expression in pathways of plant MAPK signaling, calcium signaling, and reactive oxygen species (ROS) signaling. Furthermore, molecular docking analysis indicated that PpCDPK24 may activate the ROS signaling pathway by phosphorylating PpRBOHE. Besides, PpWRKY40 mediates the activation of PpMAPKKK2-induced ROS signaling pathway by interacting with the PpRBOHE promoter. Accordingly, trehalose treatment significantly enhanced the activities of antioxidant-related enzymes such as superoxide dismutase (SOD), catalase (CAT), ascorbate peroxidase (APX), and gluathione reductase (GR), as well as the transcription levels AsA-GSH cycle related gene, which led to the reduction of H2O2 and malondialdehyde (MDA) content in peach during cold storage. In summary, our results suggest that the potential molecular mechanism of trehalose treatment is to enhance antioxidant capacity by activating CDPK-mediated Ca2 + -ROS signaling pathway and WRKY-mediated MAPK-WRKY-ROS signaling pathway, thereby reducing the CI in peach fruit.
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Affiliation(s)
- Xingxing Wang
- Zhejiang Key Laboratory of Intelligent Food Logistic and Processing, Zhejiang-Malaysia Joint Research Laboratory for Agricultural Product Processing and Nutrition, College of Food Science and Engineering, Ningbo University, Ningbo 315800, China
| | - Yingying Wei
- Zhejiang Key Laboratory of Intelligent Food Logistic and Processing, Zhejiang-Malaysia Joint Research Laboratory for Agricultural Product Processing and Nutrition, College of Food Science and Engineering, Ningbo University, Ningbo 315800, China
| | - Shu Jiang
- Zhejiang Key Laboratory of Intelligent Food Logistic and Processing, Zhejiang-Malaysia Joint Research Laboratory for Agricultural Product Processing and Nutrition, College of Food Science and Engineering, Ningbo University, Ningbo 315800, China
| | - Jianfen Ye
- Zhejiang Key Laboratory of Intelligent Food Logistic and Processing, Zhejiang-Malaysia Joint Research Laboratory for Agricultural Product Processing and Nutrition, College of Food Science and Engineering, Ningbo University, Ningbo 315800, China
| | - Yi Chen
- Zhejiang Key Laboratory of Intelligent Food Logistic and Processing, Zhejiang-Malaysia Joint Research Laboratory for Agricultural Product Processing and Nutrition, College of Food Science and Engineering, Ningbo University, Ningbo 315800, China
| | - Feng Xu
- Zhejiang Key Laboratory of Intelligent Food Logistic and Processing, Zhejiang-Malaysia Joint Research Laboratory for Agricultural Product Processing and Nutrition, College of Food Science and Engineering, Ningbo University, Ningbo 315800, China
| | - Xingfeng Shao
- Zhejiang Key Laboratory of Intelligent Food Logistic and Processing, Zhejiang-Malaysia Joint Research Laboratory for Agricultural Product Processing and Nutrition, College of Food Science and Engineering, Ningbo University, Ningbo 315800, China.
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8
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Jayarajan S, Sethi S, Awasthi OP, Sharma A, Bukvički D. Synergistic Influence of Melatonin-Hydrocolloid Coating on Decay and Senescence of Nectarine ( Prunus persica var. nucipersica) during Supermarket Storage Conditions. PLANTS (BASEL, SWITZERLAND) 2024; 13:822. [PMID: 38592840 PMCID: PMC10974631 DOI: 10.3390/plants13060822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 03/11/2024] [Accepted: 03/12/2024] [Indexed: 04/11/2024]
Abstract
Nectarines have remarkable nutritional value, low caloric content, and are rich in antioxidants. However, despite substantial local and global demand, their susceptibility to rapid spoilage during peak summer harvest is limited. To address this issue, the current study investigated the potential benefits of using melatonin (MLT), an antioxidant biomolecule, in combination with edible hydrocolloid coatings like carboxymethylcellulose (CMC) and gum Arabic (G.A.) on 'Snow Queen' nectarine fruits. The nectarines were treated with various combinations of coatings, including 1% and 1.5% CMC, 8% and 10% G.A., and 0.1 mM melatonin. These coated and non-coated samples were stored under standard supermarket conditions (18 ± 1 °C, 85-90% R.H.) for 16 days. The outcomes demonstrated that the most effective treatment was the combination of 1% CMC with 0.1 mM melatonin. This treatment significantly (p ≤ 0.05) reduced the rate of respiration, curbed fruit decay by approximately 95%, minimized weight loss by around 42%, and maintained approximately 39% higher levels of total phenol content and roughly 30% greater antioxidant (AOX) activity. These positive effects were accompanied by preserved firmness and overall quality attributes. Moreover, the treatment extended the shelf life to 16 days through retarding senescence and suppressing the activities of lipoxygenase (LOX) and pectin methylesterase (PME), all without compromising the functional qualities of the nectarine.
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Affiliation(s)
- Smruthi Jayarajan
- Division of Food Science and Postharvest Technology, ICAR-Indian Agricultural Research Institute, New Delhi 110012, India;
- Amity Institute of Horticulture Studies & Research, Amity University, Noida 201301, India
| | - Shruti Sethi
- Division of Food Science and Postharvest Technology, ICAR-Indian Agricultural Research Institute, New Delhi 110012, India;
| | - Om Prakash Awasthi
- Division of Fruits and Horticultural Technology, ICAR-Indian Agricultural Research Institute, New Delhi 110012, India;
| | - Abhishek Sharma
- Amity Food and Agriculture Foundation, Amity University, Noida 201303, India
| | - Danka Bukvički
- Faculty of Biology, Institute of Botany and Botanical Garden ‘Jevremovac’, University of Belgrade, Takovska 43, 11000 Belgrade, Serbia;
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9
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Shi L, Chen Y, Dong W, Li S, Chen W, Yang Z, Cao S. Melatonin delayed senescence by modulating the contents of plant signalling molecules in postharvest okras. FRONTIERS IN PLANT SCIENCE 2024; 15:1304913. [PMID: 38516664 PMCID: PMC10954822 DOI: 10.3389/fpls.2024.1304913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Accepted: 02/22/2024] [Indexed: 03/23/2024]
Abstract
Okra has been widely cultivated worldwide. Consumers appreciate its nutritional value and delicious taste. However, okra is very perishable after harvest because of rapid senescence and high susceptibility to mechanical injuries, which limits its storage life and reduces consumer acceptance. This study examined the influence of melatonin treatment on senescence process and endogenous plant signalling molecules in postharvest okras. The results indicated that melatonin treatment delayed senescence by increasing the endogenous melatonin content through upregulation of its biosynthetic genes. In addition, the treatment increased the contents of indole-3-acetic acid (IAA) and gibberellin (GA) due to the positive modulation of their metabolic and signalling genes. Furthermore, treated okras exhibited higher levels of γ-aminobutyric acid (GABA) but lower abscisic acid (ABA) content, contributing to the delayed senescence process compared to control. Overall, the findings suggested that melatonin postponed senescence in okras fruit by positively regulating endogenous signalling molecules such as melatonin, IAA, GABA, GA, and ABA.
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Affiliation(s)
| | | | | | | | | | | | - Shifeng Cao
- College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo, China
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10
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Liu Y, Xu J, Lu X, Huang M, Mao Y, Li C, Yu W, Li C. Carbon monoxide is involved in melatonin-enhanced drought resistance in tomato seedlings by enhancing chlorophyll synthesis pathway. BMC PLANT BIOLOGY 2024; 24:97. [PMID: 38331770 PMCID: PMC10854177 DOI: 10.1186/s12870-024-04793-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Accepted: 02/01/2024] [Indexed: 02/10/2024]
Abstract
BACKGROUND Drought is thought to be a major abiotic stress that dramatically limits tomato growth and production. As signal molecule, melatonin (MT) and carbon monoxide (CO) can enhance plant stress resistance. However, the effect and underlying mechanism of CO involving MT-mediated drought resistance in seedling growth remains unknown. In this study, tomato (Solanum lycopersicum L. 'Micro-Tom') seedlings were used to investigate the interaction and mechanism of MT and CO in response to drought stress. RESULTS The growth of tomato seedlings was inhibited significantly under drought stress. Exogenous MT or CO mitigated the drought-induced impairment in a dose-dependent manner, with the greatest efficiency provided by 100 and 500 µM, respectively. But application of hemoglobin (Hb, a CO scavenger) restrained the positive effects of MT on the growth of tomato seedlings under drought stress. MT and CO treatment promoted chlorophyll a (Chl a) and chlorophyll a (Chl b) accumulations. Under drought stress, the intermediate products of chlorophyll biosynthesis such as protoporphyrin IX (Proto IX), Mg-protoporphyrin IX (Mg-Proto IX), potochlorophyllide (Pchlide) and heme were increased by MT or CO, but uroporphyrinogen III (Uro III) content decreased in MT-treated or CO-treated tomato seedlings. Meanwhile, MT or CO up-regulated the expression of chlorophyll and heme synthetic-related genes SlUROD, SlPPOX, SlMGMT, SlFECH, SlPOR, SlChlS, and SlCAO. However, the effects of MT on chlorophyll biosynthesis were almost reversed by Hb. CONCLUSION The results suggested that MT and CO can alleviate drought stress and facilitate the synthesis of Chl and heme in tomato seedlings. CO played an essential role in MT-enhanced drought resistance via facilitating chlorophyll biosynthesis pathway.
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Affiliation(s)
- Yunzhi Liu
- College of Agriculture, Guangxi University, Nanning, 530004, China
| | - Junrong Xu
- College of Agriculture, Guangxi University, Nanning, 530004, China
| | - Xuefang Lu
- College of Agriculture, Guangxi University, Nanning, 530004, China
| | - Mengxiao Huang
- College of Agriculture, Guangxi University, Nanning, 530004, China
| | - Yuanzhi Mao
- College of Agriculture, Guangxi University, Nanning, 530004, China
| | - Chuanghao Li
- College of Agriculture, Guangxi University, Nanning, 530004, China
| | - Wenjin Yu
- College of Agriculture, Guangxi University, Nanning, 530004, China
| | - Changxia Li
- College of Agriculture, Guangxi University, Nanning, 530004, China.
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