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Zhong Y, Wu X, Zhang L, Zhang Y, Wei L, Liu Y. The roles of nitric oxide in improving postharvest fruits quality: Crosstalk with phytohormones. Food Chem 2024; 455:139977. [PMID: 38850982 DOI: 10.1016/j.foodchem.2024.139977] [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: 02/20/2024] [Revised: 05/25/2024] [Accepted: 06/02/2024] [Indexed: 06/10/2024]
Abstract
Nowadays, improving the quality of postharvest fruits has become a hot research topic. Nitric oxide (NO) is often regarded as a signaling molecule that delays the postharvest senescence of fruits. Moreover, phytohormones affect the postharvest senescence of fruits. This review mainly describes how NO improves the postharvest quality of fruits by delaying postharvest fruit senescence, mitigating fruit cold damage and controlling postharvest diseases. Furthermore, the crosstalk of NO and multiple plant hormones effectively delays the postharvest senescence of fruits, and the major crosstalk mechanisms include (1) mediating phytohormone signaling. (2) inhibiting ETH production. (3) stimulating antioxidant enzyme activity. (4) decreasing membrane lipid peroxidation. (5) maintaining membrane integrity. (6) inhibiting respiration rate. (7) regulating gene expression related to fruit senescence. This review concluded the roles and mechanisms of NO in delaying postharvest fruit senescence. In addition, the crosstalk mechanisms between NO and various phytohormones on the regulation of postharvest fruit quality are also highlighted, which provides new ideas for the subsequent research.
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Affiliation(s)
- Yue Zhong
- Spice Crops Research Institute, College of Horticulture and Gardening, Yangtze University, Jingzhou 434025, China
| | - Xiuqiao Wu
- Spice Crops Research Institute, College of Horticulture and Gardening, Yangtze University, Jingzhou 434025, China
| | - Lingling Zhang
- Spice Crops Research Institute, College of Horticulture and Gardening, Yangtze University, Jingzhou 434025, China
| | - Yiming Zhang
- Spice Crops Research Institute, College of Horticulture and Gardening, Yangtze University, Jingzhou 434025, China
| | - Lijuan Wei
- Spice Crops Research Institute, College of Horticulture and Gardening, Yangtze University, Jingzhou 434025, China.
| | - Yiqing Liu
- Spice Crops Research Institute, College of Horticulture and Gardening, Yangtze University, Jingzhou 434025, China.
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Yu JQ, Li ZT, Chen S, Gao HS, Sheng LX. Analysis of Ethylene Signal Regulating Sucrose Metabolism in Strawberry Fruits Based on RNA-seq. PLANTS (BASEL, SWITZERLAND) 2024; 13:1121. [PMID: 38674530 PMCID: PMC11054676 DOI: 10.3390/plants13081121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Revised: 04/07/2024] [Accepted: 04/13/2024] [Indexed: 04/28/2024]
Abstract
Ethylene is a key hormone that regulates the maturation and quality formation of horticultural crops, but its effects on non-respiratory climacteric fruits such as strawberries are not yet clear. In this study, strawberry fruits were treated with exogenous ethephon (ETH) and 1-methylcyclopropene (1-MCP). It was found that ETH treatment increased the soluble solids and anthocyanin content of the fruits, reduced hardness, and decreased organic acid content, while 1-MCP treatment inhibited these processes. Transcriptome analysis revealed that differentially expressed genes (DEGs) were enriched in the starch-sucrose metabolism pathway. qRT-PCR results further showed significant changes in the expression levels of sucrose metabolism genes, confirming the influence of ethylene signals on soluble sugar accumulation during strawberry fruit development. This study elucidates the quality changes and molecular mechanisms of ethylene signal in the development of strawberry fruits, providing some key targets and theoretical support for guiding strawberry cultivation and variety improvement.
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Affiliation(s)
| | | | | | | | - Li-Xia Sheng
- College of Horticulture and Landscape Architecture, Yangzhou University, Yangzhou 225009, China; (J.-Q.Y.); (Z.-T.L.); (S.C.); (H.-S.G.)
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Wang M, Wu Y, Zhan W, Wang H, Chen M, Li T, Bai T, Jiao J, Song C, Song S, Feng J, Zheng X. The apple transcription factor MdZF-HD11 regulates fruit softening by promoting Mdβ-GAL18 expression. JOURNAL OF EXPERIMENTAL BOTANY 2024; 75:819-836. [PMID: 37936320 DOI: 10.1093/jxb/erad441] [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: 07/21/2023] [Accepted: 11/03/2023] [Indexed: 11/09/2023]
Abstract
Fruit ripening and the associated softening are major determinants of fruit quality and post-harvest shelf life. Although the mechanisms underlying fruit softening have been intensively studied, there are limited reports on the regulation of fruit softening in apples (Malus domestica). Here, we identified a zinc finger homeodomain transcription factor MdZF-HD11that trans-activates the promoter of Mdβ-GAL18, which encodes a pectin-degradation enzyme associated with cell wall metabolism. Both MdZF-HD11 and Mdβ-GAL18 genes were up-regulated by exogenous ethylene treatment and repressed by 1-methylcyclopropene treatment. Further experiments revealed that MdZF-HD11 binds directly to the Mdβ-GAL18 promoter and up-regulates its transcription. Moreover, using transgenic apple fruit calli, we found that overexpression of Mdβ-GAL18 or MdZF-HD11 significantly enhanced β-galactosidase activity, and overexpression of MdZF-HD11 induced the expression of Mdβ-GAL18. We also discovered that transient overexpression of Mdβ-GAL18 or MdZF-HD11 in 'Golden Delicious' apple significantly increased the release of ethylene, reduced fruit firmness, promoted the transformation of skin color from green to yellow, and accelerated ripening and softening of the fruit. Finally, the overexpression of MdZF-HD11 in tomato also promoted fruit softening. Collectively, these results indicate that ethylene-induced MdZF-HD11 interacts with Mdβ-GAL18 to promote the post-harvest softening of apple.
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Affiliation(s)
- Miaomiao Wang
- College of Horticulture, Henan Agricultural University, Zhengzhou, China
| | - Yao Wu
- College of Horticulture, Henan Agricultural University, Zhengzhou, China
| | - Wenduo Zhan
- College of Horticulture, Henan Agricultural University, Zhengzhou, China
| | - Hao Wang
- College of Horticulture, Henan Agricultural University, Zhengzhou, China
| | - Ming Chen
- College of Horticulture, Henan Agricultural University, Zhengzhou, China
| | - Tongxin Li
- College of Horticulture, Henan Agricultural University, Zhengzhou, China
| | - Tuanhui Bai
- College of Horticulture, Henan Agricultural University, Zhengzhou, China
| | - Jian Jiao
- College of Horticulture, Henan Agricultural University, Zhengzhou, China
| | - Chunhui Song
- College of Horticulture, Henan Agricultural University, Zhengzhou, China
| | - Shangwei Song
- College of Horticulture, Henan Agricultural University, Zhengzhou, China
| | - Jiancan Feng
- College of Horticulture, Henan Agricultural University, Zhengzhou, China
| | - Xianbo Zheng
- College of Horticulture, Henan Agricultural University, Zhengzhou, China
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Guo Z, Liu H, Zheng S, Qi K, Xie Z, Wang X, Hong Y, Cui Y, Liu X, Gu C, Zhang SL. The transcription factor PbbHLH164 is destabilized by PbRAD23C/D.1 and mediates ethylene biosynthesis during pear fruit ripening. J Adv Res 2024:S2090-1232(24)00004-3. [PMID: 38190939 DOI: 10.1016/j.jare.2024.01.004] [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: 10/09/2023] [Revised: 12/17/2023] [Accepted: 01/05/2024] [Indexed: 01/10/2024] Open
Abstract
The phytohormone ethylene plays an important role in climacteric fruit ripening. However, the knowledge on molecular regulation of ethylene biosynthesis remains limited in pear fruit. Herein, a new basic helix-loop-helix transcription factor, PbbHLH164, was identified based on the transcriptome analysis of different developing and ripening fruits of two pear cultivars 'Sucui No. 1' and 'Cuiguan'. PbbHLH164 was more highly expressed in ripening fruit than in developing fruit and positively correlated with ethylene production in both cultivars. PbbHLH164 could directly bind to the promoter of 1-aminocyclopropane-1-carboxylate synthase, PbACS1b, to enhance the expression, leading to the increase of ethylene production and the acceleration of fruit ripening. Interestingly, PbbHLH164 physically interacted with an ubiquitin-like/ubiquitin-associated protein PbRAD23C/D.1, and the interaction of PbbHLH164 with PbRAD23C/D.1 attenuated the function of PbbHLH164 in enhancing the activity of the PbACS1b promoter. Notably, PbRAD23C/D.1 was involved in the degradation of PbbHLH164, and this degradation was inhibited by an ubiquitin proteasome inhibitor MG132. Different from PbbHLH164, PbRAD23C/D.1 was more highly expressed in developing fruit than in ripening fruit of both cultivars. These results suggest that the increase of ethylene production during pear fruit ripening results from the up-regulated expression of PbbHLH164 and the down-regulated expression of PbRAD23C/D.1. This information provided new insights into the molecular regulation of ethylene biosynthesis during fruit ripening.
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Affiliation(s)
- ZhiHua Guo
- Jiangsu Engineering Research Centre for Pear, State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China
| | - Hong Liu
- Jiangsu Engineering Research Centre for Pear, State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China
| | - SiQi Zheng
- Jiangsu Engineering Research Centre for Pear, State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China
| | - KaiJie Qi
- Jiangsu Engineering Research Centre for Pear, State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China
| | - ZhiHua Xie
- Jiangsu Engineering Research Centre for Pear, State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China
| | - XuePing Wang
- Jiangsu Engineering Research Centre for Pear, State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China
| | - YeMei Hong
- Jiangsu Engineering Research Centre for Pear, State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China
| | - YanBo Cui
- Nanjing Ningcui Biological Seed Company Limited, Nanjing, Jiangsu, China
| | - Xiaoxiang Liu
- Jiangsu Engineering Research Centre for Pear, State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China
| | - Chao Gu
- Jiangsu Engineering Research Centre for Pear, State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China.
| | - Shao-Ling Zhang
- Jiangsu Engineering Research Centre for Pear, State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China.
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Wei Y, Liu Z, Lv T, Xu Y, Wei Y, Liu W, Liu L, Wang A, Li T. Ethylene enhances MdMAPK3-mediated phosphorylation of MdNAC72 to promote apple fruit softening. THE PLANT CELL 2023; 35:2887-2909. [PMID: 37132483 PMCID: PMC10396387 DOI: 10.1093/plcell/koad122] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 03/21/2023] [Accepted: 04/10/2023] [Indexed: 05/04/2023]
Abstract
The phytohormone ethylene plays an important role in promoting the softening of climacteric fruits, such as apples (Malus domestica); however, important aspects of the underlying regulatory mechanisms are not well understood. In this study, we identified apple MITOGEN-ACTIVATED PROTEIN KINASE 3 (MdMAPK3) as an important positive regulator of ethylene-induced apple fruit softening during storage. Specifically, we show that MdMAPK3 interacts with and phosphorylates the transcription factor NAM-ATAF1/2-CUC2 72 (MdNAC72), which functions as a transcriptional repressor of the cell wall degradation-related gene POLYGALACTURONASE1 (MdPG1). The increase in MdMAPK3 kinase activity was induced by ethylene, which promoted the phosphorylation of MdNAC72 by MdMAPK3. Additionally, MdPUB24 functions as an E3 ubiquitin ligase to ubiquitinate MdNAC72, resulting in its degradation via the 26S proteasome pathway, which was enhanced by ethylene-induced phosphorylation of MdNAC72 by MdMAPK3. The degradation of MdNAC72 increased the expression of MdPG1, which in turn promoted apple fruit softening. Notably, using variants of MdNAC72 that were mutated at specific phosphorylation sites, we observed that the phosphorylation state of MdNAC72 affected apple fruit softening during storage. This study thus reveals that the ethylene-MdMAPK3-MdNAC72-MdPUB24 module is involved in ethylene-induced apple fruit softening, providing insights into climacteric fruit softening.
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Affiliation(s)
- Yun Wei
- Key Laboratory of Fruit Postharvest Biology (Liaoning Province), Shenyang Agricultural University, Shenyang 110866, China
- Key Laboratory of Protected Horticulture (Ministry of Education), Shenyang Agricultural University, Shenyang 110866, China
- National & Local Joint Engineering Research Center of Northern Horticultural Facilities Design & Application Technology (Liaoning), Shenyang Agricultural University, Shenyang 110866, China
- College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China
| | - Zhi Liu
- Liaoning Institute of Pomology, Xiongyue 115009, China
| | - Tianxing Lv
- Liaoning Institute of Pomology, Xiongyue 115009, China
| | - Yaxiu Xu
- Key Laboratory of Fruit Postharvest Biology (Liaoning Province), Shenyang Agricultural University, Shenyang 110866, China
- Key Laboratory of Protected Horticulture (Ministry of Education), Shenyang Agricultural University, Shenyang 110866, China
- National & Local Joint Engineering Research Center of Northern Horticultural Facilities Design & Application Technology (Liaoning), Shenyang Agricultural University, Shenyang 110866, China
- College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China
| | - Yajing Wei
- Key Laboratory of Fruit Postharvest Biology (Liaoning Province), Shenyang Agricultural University, Shenyang 110866, China
- Key Laboratory of Protected Horticulture (Ministry of Education), Shenyang Agricultural University, Shenyang 110866, China
- National & Local Joint Engineering Research Center of Northern Horticultural Facilities Design & Application Technology (Liaoning), Shenyang Agricultural University, Shenyang 110866, China
- College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China
| | - Weiting Liu
- Key Laboratory of Fruit Postharvest Biology (Liaoning Province), Shenyang Agricultural University, Shenyang 110866, China
- Key Laboratory of Protected Horticulture (Ministry of Education), Shenyang Agricultural University, Shenyang 110866, China
- National & Local Joint Engineering Research Center of Northern Horticultural Facilities Design & Application Technology (Liaoning), Shenyang Agricultural University, Shenyang 110866, China
- College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China
| | - Li Liu
- Key Laboratory of Fruit Postharvest Biology (Liaoning Province), Shenyang Agricultural University, Shenyang 110866, China
- Key Laboratory of Protected Horticulture (Ministry of Education), Shenyang Agricultural University, Shenyang 110866, China
- National & Local Joint Engineering Research Center of Northern Horticultural Facilities Design & Application Technology (Liaoning), Shenyang Agricultural University, Shenyang 110866, China
- College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China
| | - Aide Wang
- Key Laboratory of Fruit Postharvest Biology (Liaoning Province), Shenyang Agricultural University, Shenyang 110866, China
- Key Laboratory of Protected Horticulture (Ministry of Education), Shenyang Agricultural University, Shenyang 110866, China
- National & Local Joint Engineering Research Center of Northern Horticultural Facilities Design & Application Technology (Liaoning), Shenyang Agricultural University, Shenyang 110866, China
- College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China
| | - Tong Li
- Key Laboratory of Fruit Postharvest Biology (Liaoning Province), Shenyang Agricultural University, Shenyang 110866, China
- Key Laboratory of Protected Horticulture (Ministry of Education), Shenyang Agricultural University, Shenyang 110866, China
- National & Local Joint Engineering Research Center of Northern Horticultural Facilities Design & Application Technology (Liaoning), Shenyang Agricultural University, Shenyang 110866, China
- College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China
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Ji Y, Wang A. Recent advances in epigenetic triggering of climacteric fruit ripening. PLANT PHYSIOLOGY 2023; 192:1711-1717. [PMID: 37002826 PMCID: PMC10315304 DOI: 10.1093/plphys/kiad206] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 03/03/2023] [Accepted: 03/18/2023] [Indexed: 06/19/2023]
Abstract
During ripening, fleshy fruits undergo irreversible changes in color, texture, sugar content, aroma, and flavor to appeal to seed-dispersal vectors. The onset of climacteric fruit ripening is accompanied by an ethylene burst. Understanding the factors triggering this ethylene burst is important for manipulating climacteric fruit ripening. Here, we review the current understanding and recent insights into the possible factors triggering climacteric fruit ripening: DNA methylation and histone modification, including methylation and acetylation. Understanding the initiation factors of fruit ripening is important for exploring and accurately regulating the mechanisms of fruit ripening. Lastly, we discuss the potential mechanisms responsible for climacteric fruit ripening.
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Affiliation(s)
- Yinglin Ji
- Key Laboratory of Fruit Postharvest Biology (Liaoning Province), Key Laboratory of Protected Horticulture (Ministry of Education), National and Local Joint Engineering Research Center of Northern Horticultural Facilities Design and Application Technology (Liaoning), College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China
| | - Aide Wang
- Key Laboratory of Fruit Postharvest Biology (Liaoning Province), Key Laboratory of Protected Horticulture (Ministry of Education), National and Local Joint Engineering Research Center of Northern Horticultural Facilities Design and Application Technology (Liaoning), College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China
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Yue P, Jiang Z, Sun Q, Wei R, Yin Y, Xie Z, Larkin RM, Ye J, Chai L, Deng X. Jasmonate activates a CsMPK6-CsMYC2 module that regulates the expression of β-citraurin biosynthetic genes and fruit coloration in orange (Citrus sinensis). THE PLANT CELL 2023; 35:1167-1185. [PMID: 36530163 PMCID: PMC10052374 DOI: 10.1093/plcell/koac363] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Accepted: 12/12/2022] [Indexed: 06/17/2023]
Abstract
Carotenoids are natural pigments that influence the color of citrus fruit. The red-colored carotenoid β-citraurin is responsible for the peel color in "Newhall" orange (Citrus sinensis). Although jasmonates are known to regulate the biosynthesis and accumulation of carotenoids, their effects on β-citraurin biosynthesis in citrus fruit remain unclear. Here, we determined that treatment with methyl jasmonate (MeJA) significantly promotes fruit coloration and β-citraurin production in "Newhall" orange. A MeJA treatment induced the expression of CsMYC2, which encodes a transcription factor that serves as a master regulator of jasmonate responses. CsMYC2 bound the promoter of the gene that encodes carotenoid cleavage dioxygenase 4b (CsCCD4b), the key gene for β-citraurin biosynthesis, and the promoters of genes that encode phytoene synthase (CsPSY), lycopene β-cyclase (CsLCYb), and β-carotene hydroxylase (CsBCH) and induced their expression. In addition, CsMYC2 promoted CsMPK6 expression. Notably, we found that CsMPK6 interacted with CsMYC2 and that this interaction decreased the stability and DNA-binding activity of CsMYC2. Thus, we conclude that negative feedback regulation attenuates JA signaling during the jasmonate-induced coloration of citrus fruit. Together, our findings indicate that jasmonates induce β-citraurin biosynthesis in citrus by activating a CsMPK6-CsMYC2 cascade, thereby affecting fruit coloration.
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Affiliation(s)
| | - Zhenghua Jiang
- Key Laboratory of Horticultural Plant Biology of MOE (Ministry of Education), Huazhong Agricultural University Wuhan, Hubei 430070, China
| | - Quan Sun
- Key Laboratory of Horticultural Plant Biology of MOE (Ministry of Education), Huazhong Agricultural University Wuhan, Hubei 430070, China
| | - Ranran Wei
- Key Laboratory of Horticultural Plant Biology of MOE (Ministry of Education), Huazhong Agricultural University Wuhan, Hubei 430070, China
| | - Yingzi Yin
- Key Laboratory of Horticultural Plant Biology of MOE (Ministry of Education), Huazhong Agricultural University Wuhan, Hubei 430070, China
| | - Zongzhou Xie
- Key Laboratory of Horticultural Plant Biology of MOE (Ministry of Education), Huazhong Agricultural University Wuhan, Hubei 430070, China
| | - Robert M Larkin
- Key Laboratory of Horticultural Plant Biology of MOE (Ministry of Education), Huazhong Agricultural University Wuhan, Hubei 430070, China
| | - Junli Ye
- Key Laboratory of Horticultural Plant Biology of MOE (Ministry of Education), Huazhong Agricultural University Wuhan, Hubei 430070, China
| | - Lijun Chai
- Key Laboratory of Horticultural Plant Biology of MOE (Ministry of Education), Huazhong Agricultural University Wuhan, Hubei 430070, China
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Nitric Oxide Acts as an Inhibitor of Postharvest Senescence in Horticultural Products. Int J Mol Sci 2022; 23:ijms231911512. [PMID: 36232825 PMCID: PMC9569437 DOI: 10.3390/ijms231911512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Revised: 09/23/2022] [Accepted: 09/26/2022] [Indexed: 11/16/2022] Open
Abstract
Horticultural products display fast senescence after harvest at ambient temperatures, resulting in decreased quality and shorter shelf life. As a gaseous signal molecule, nitric oxide (NO) has an important physiological effect on plants. Specifically, in the area of NO and its regulation of postharvest senescence, tremendous progress has been made. This review summarizes NO synthesis; the effect of NO in alleviating postharvest senescence; the mechanism of NO-alleviated senescence; and its interactions with other signaling molecules, such as ethylene (ETH), abscisic acid (ABA), melatonin (MT), hydrogen sulfide (H2S), hydrogen gas (H2), hydrogen peroxide (H2O2), and calcium ions (Ca2+). The aim of this review is to provide theoretical references for the application of NO in postharvest senescence in horticultural products.
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