Melatonin limited ethylene production, softening and reduced physiology disorder in pear ( Pyrus communis L.) fruit during senescence

Zhai, Rui; Liu, Jianlong; Liu, Fengxia; Zhao, Yingxiao; Liu, Lulu; Chen, Fang; Wang, Huibin; Li, Xieyu; Wang, Zhigang; Ma, Fengwang; Xu, Lingfei

doi:10.1016/j.postharvbio.2018.01.017

Cited by 156 publications

(93 citation statements)

References 42 publications

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“…Thus, MT could effectively reduce membrane lipid peroxidation and improve the antioxidant capacity of wax apples. Additionally, the expression levels of cell wall-degrading enzyme genes SsPG1 , Sscel61a , and Sscel61b were reduced by MT treatment in wax apple ( Figure 7 ), which was consistent with the finding in the pear ( Zhai et al., 2018 ). These results suggested that MT treatment may possibly maintain the firmness of post-harvest wax apples and delay fruit softening.…”

Section: Discussionsupporting

confidence: 86%

“…In this study, soaking with MT effectively reduced the rate of water loss, alleviated the decay, maintained the appearance, and prolonged the shelf life of wax apples ( Figure 1 ). The optimal MT concentration for post-harvest preservation of wax apple (800 µM) is quite higher than that for tomato (50 μM; Sun et al., 2015 ; Sun et al., 2016 ), peaches (100 μM; Cao et al., 2016 ; Gao et al., 2016 ; Cao et al., 2018 ; Gao et al., 2018 ), and pear ( Zhai et al., 2018 ). By contrast, 500, 1,000, and 10,000 µM are the best MT concentration for cassava ( Ma et al., 2016 ), strawberry ( Liu et al., 2018 ), and potato ( Zhang et al., 2017 ), respectively.…”

Section: Discussionmentioning

confidence: 90%

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Exogenous Melatonin Attenuates Post-Harvest Decay by Increasing Antioxidant Activity in Wax Apple (Syzygium samarangense)

et al. 2020

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Wax apple is one of the most popular tropical fruit but undergoes serious post-harvest decay during storage, transportation and marketing. Melatonin (MT) plays important roles in plant growth, development and stress responses. However, its function in post-harvest preservation of fruit remains largely unknown. In the present study, the physiological function and molecular mechanism of exogenous MT for post-harvest preservation were evaluated in wax apple fruit. Results showed that MT treatment remarkably reduced decay incidence and the accumulation of excess reactive oxygen species (ROS) but increased the activity of antioxidant enzymes, suggesting that exogenous MT alleviates the post-harvest decay of wax apple by regulating the balance between ROS production and antioxidant system. Meanwhile, the gene expression was analyzed by transcriptome confirmed by quantitative PCR. This study provides insights into the regulatory mechanism and proper application strategies for post-harvest preservation of wax apple and other fruits though melatonin manipulation.

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Section: Discussionsupporting

confidence: 86%

Section: Discussionmentioning

confidence: 90%

Exogenous Melatonin Attenuates Post-Harvest Decay by Increasing Antioxidant Activity in Wax Apple (Syzygium samarangense)

et al. 2020

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“…Polygalacturonase and cellulase are required for the modification of pectin and cellulase, respectively. To alleviate fruit softening, various postharvest measures have been applied, such as ultraviolet-C illumination (Bu et al, 2013) and melatonin treatment (Zhai et al, 2018). In the present study, we found that exogenous H 2 S alleviated ethylene-induced fruit softening.…”

Section: Discussionsupporting

confidence: 55%

Hydrogen Sulfide Inhibits Fruit Softening by Regulating Ethylene Synthesis and Signaling Pathway in Tomato (Solanum lycopersicum)

Hu¹,

Zhang²,

Wang³

et al. 2019

horts

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Hydrogen sulfide (H2S) has been proven to be a multifunctional signaling molecule in plants. In this study, we attempted to explore the effects of H2S on the climacteric fruit tomato during postharvest storage. H2S fumigation for 1 d was found to delay the peel color transition from green to red and decreased fruit firmness induced by ethylene. Further investigation showed that H2S fumigation downregulated the activities and gene expressions of cell wall–degrading enzymes pectin lyase (PL), polygalacturonase (PG), and cellulase. Furthermore, H2S fumigation downregulated the expression of ethylene biosynthesis genes SlACS2 and SlACS3. Ethylene treatment for 1 d was found to induce the expression of SlACO1, SlACO3, and SlACO4 genes, whereas the increase was significantly inhibited by H2S combined with ethylene. Furthermore, H2S decreased the transcript accumulation of ethylene receptor genes SlETR5 and SlETR6 and ethylene transcription factors SlCRF2 and SlERF2. The correlation analysis suggested that the fruit firmness was negatively correlated with ethylene biosynthesis and signaling pathway. The current study showed that exogenous H2S could inhibit the synthesis of endogenous ethylene and regulate ethylene signal transduction, thereby delaying fruit softening and the ripening process of tomato fruit during postharvest storage.

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“…It has been demonstrated that melatonin confers chilling tolerance during fruit cold storage, which appears to be mostly related to its antioxidant activity (Cao et al, 2018; Aghdam et al, 2019). During post-harvest, tomatoes showed increased ethylene emission after application of melatonin at 50 μM (Sun et al, 2015), contrary to pears, where exogenous application of melatonin at 100 μM inhibited ethylene production (Zhai et al, 2018), or banana fruits, where melatonin at 50–200 μM inhibited the expression of ACS and ACO (Figure 2C; Hu et al, 2017). Although different effects of melatonin application may be related to a dosage effect, further research is needed to better understand the role of melatonin in the control of fruit development.…”

Section: Role Of Chorismate-derived Phytohormones In Climacteric and mentioning

confidence: 99%

Biosynthesis, Metabolism and Function of Auxin, Salicylic Acid and Melatonin in Climacteric and Non-climacteric Fruits

et al. 2019

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Climacteric and non-climacteric fruits are differentiated by the ripening process, in particular by the involvement of ethylene, high respiration rates and the nature of the process, being autocatalytic or not, respectively. Here, we focus on the biosynthesis, metabolism and function of three compounds (auxin, salicylic acid and melatonin) sharing not only a common precursor (chorismate), but also regulatory functions in plants, and therefore in fruits. Aside from describing their biosynthesis in plants, with a particular emphasis on common precursors and points of metabolic diversion, we will discuss recent advances on their role in fruit ripening and the regulation of bioactive compounds accumulation, both in climacteric and non-climacteric fruits.

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Melatonin limited ethylene production, softening and reduced physiology disorder in pear ( Pyrus communis L.) fruit during senescence

Cited by 156 publications

References 42 publications

Exogenous Melatonin Attenuates Post-Harvest Decay by Increasing Antioxidant Activity in Wax Apple (Syzygium samarangense)

Exogenous Melatonin Attenuates Post-Harvest Decay by Increasing Antioxidant Activity in Wax Apple (Syzygium samarangense)

Hydrogen Sulfide Inhibits Fruit Softening by Regulating Ethylene Synthesis and Signaling Pathway in Tomato (Solanum lycopersicum)

Biosynthesis, Metabolism and Function of Auxin, Salicylic Acid and Melatonin in Climacteric and Non-climacteric Fruits

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