Salicylic acid treatment delays apricot (Prunus armeniaca L.) fruit softening by inhibiting ethylene biosynthesis and cell wall degradation

Li, Yaling; He, Huan; Hou, Yuanyuan; Kelimu, Abulimiti; Wu, Fang; Zhao, Yating; Shi, Lei; Zhu, Xuan

doi:10.1016/j.scienta.2022.111061

Cited by 29 publications

(13 citation statements)

References 52 publications

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“…It was found that the expression of the cellulose synthase family CesA3 was not affected by exogenous Ca, while the expression of the polygalacturonase coding genes PG1 and PG2 was downregulated [ 45 ]. Li Yaling et al treated apricot fruit with salicylic acid; the results showed that salicylic acid treatment inhibited the expression of PaPG1 and PaPME1 genes, which were closely related to the activity of related enzymes, and these two genes were closely related to fruit softening [ 46 ].…”

Section: Resultsmentioning

confidence: 99%

Effect of Chitosan/Thyme Oil Coating and UV-C on the Softening and Ripening of Postharvest Blueberry Fruits

Sun

Hao

Tian

et al. 2022

Foods

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This study investigated the possible mechanism of softening and senescence of blueberry after harvest using chitosan/thyme oil coating combined with UV-C (short wave ultraviolet irradiation) treatment. On the 56th day of storage, the CBP, cellulose, and hemicellulose contents in the chitosan/thyme oil coating +UV-C-treated group were 1.41, 1.65, and 1.20 times higher than those in the control group. Compared with the control group, the activities of polygalacturonase (PG), pectin methylesterase (PME), β-glucosidase (β-Gal), and cellulose (Cx) were significantly reduced (p < 0.05) after chitosan/thyme oil coating +UV-C, and their maximum values decreased by 5.41 μg/h g, 5.40 U/g, 12.41 U/g, and 3.85 μg/h g, respectively. Moreover, chitosan/thyme oil coating combined with UV-C treatment inhibited the gene expression of PG, PME, Cx, and β-Gal and then regulated the decrease in PG, PME, Cx, and β-Gal activities, inhibited the degradation of cell wall polysaccharides, and delayed the softening and senescence of postharvest blueberries. The results showed that chitosan/thyme oil coating, UV-C, and chitosan/thyme oil coating + UV-C could significantly inhibit postharvest softening of blueberry; chitosan/thyme oil coating +UV-C had the best effect.

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Section: Resultsmentioning

confidence: 99%

Effect of Chitosan/Thyme Oil Coating and UV-C on the Softening and Ripening of Postharvest Blueberry Fruits

Sun

Hao

Tian

et al. 2022

Foods

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“…The remodeling and metabolism of the cell wall materials contribute significantly to the changes in the apple’s texture [ 8 ]. Pectin substances (WSP, CSP, and SSP), hemicellulose, and cellulose are the major components of the cell wall polysaccharides, the biochemical degradation of which is closely related to the decrease in the intercellular adhesion and the cell wall disintegration as the softening process progresses [ 32 ]. The dissolution of insoluble protopectin is the most fundamental characteristic of fruit softening.…”

Section: Discussionmentioning

confidence: 99%

“…The cellulase activity was determined in a similar way to that for the PG. The activity of β-gal enzyme was represented as the release of µmol p-nitrophenyl-β-D-galactopyranoside (PNP) min −1 ·g −1 FW using the method of Li et al with a minor modification [ 32 ]. It was performed in a mixture including 0.5 mL of 10 g/L PNP and 0.5 mL crude enzyme.…”

Section: Methodsmentioning

confidence: 99%

Variation in Cell Wall Metabolism and Flesh Firmness of Four Apple Cultivars during Fruit Development

Wang

et al. 2022

Foods

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Fruit ripening and softening are highly complex processes, and there is an interplay and coordination between the metabolic pathways that are involved in the biological processes. In this study, we aimed to elucidate the variation in the characters and possible causes of cell wall materials and morphological structure during apple fruits development. We studied the cell wall material (CWM), structure, cellular morphology, hydrolase activity, and the transcriptional levels of the related genes in four apple varieties ‘Ruixue’ and ‘Ruixianghong’ and their parents (‘Pink Lady’ and ‘Fuji’) during fruit development. The decrease in the contents of CWMs, sodium carbonate soluble pectin, hemicellulose, and cellulose were positively correlated with the decline in the hardness during the fruit development. In general, the activities of polygalacturonase, β-galactosidase, and cellulase enzymes increased during the late developmental period. As the fruit grew, the fruit cells of all of the cultivars gradually became larger, and the cell arrangement became more relaxed, the fruit cell walls became thinner, and the intercellular space became larger. In conclusion, the correlation analysis indicated that the up-regulation of the relative expression levels of ethylene synthesis and cell wall hydrolase genes enhanced the activity of the cell wall hydrolase, resulting in the degradation of the CWMs and the depolymerization of the cell wall structure, which affected the final firmness of the apple cultivars in the mature period.

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“…Ethylene is a necessary regulator in the initiation and progression of fruit softening ( Li et al, 2022b ). Ethylene release and respiratory rate are closely related to softening and quality deterioration of postharvest fruit ( Silué et al, 2022 ).…”

Section: Discussionmentioning

confidence: 99%

“…Fruit softening is a complex metabolic process that results from major changes in the primary cell wall ( Li et al, 2022b ). Cell wall decomposition involves both enzymatic and non-enzymatic metabolic processes ( Singh et al, 2019 ).…”

Section: Introductionmentioning

confidence: 99%

1-Methylcyclopropene counteracts ethylene promotion of fruit softening and roles of MiERF2/8 and MiPG in postharvest mangoes

et al. 2022

Front. Plant Sci.

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Ethylene burst is an important sign of the initiation of postharvest mango ripening and softening is a typical characteristic of fruit ripening. However, the intrinsic link between ethylene release and fruit softening during ripening of postharvest mangoes is still not clear. The aim of this study was to investigate the effects of ethylene and its action inhibitor 1-methylcyclopropene (1-MCP) on fruit softening and ripening and the underlying regulatory mechanisms. Results showed that ethephon (ETH) promoted ethylene release and enhanced MDA content and activities of cell wall degrading enzymes, whereas 1-MCP treatment exhibited an opposite effect. Moreover, real-time quantitative polymerase chain reaction indicated that the transcription levels of genes involved in cell wall degradation (MiPG, Miβ-GAL and MiPE), ethylene biosynthesis (MiACO1 and MiACS6) and ethylene response factor (MiERF8) were remarkably induced by ETH. Correlation analysis further revealed that the production of ethylene was significantly negatively correlated with firmness, but positively correlated with MDA content, activities of cell wall degrading enzymes and expressions of MiPG and Miβ-GAL. Furthermore, yeast one hybrid (Y1H) assay showed that MiERF2 and MiERF8 could directly bind to the promotor of MiPG and then regulate its transcription. These findings suggest that ethylene production is closely associated with fruit softening, and MiERF2 and MiERF8 and MiPG may play crucial roles in regulation of ripening and softening of postharvest mangoes.

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Salicylic acid treatment delays apricot (Prunus armeniaca L.) fruit softening by inhibiting ethylene biosynthesis and cell wall degradation

Cited by 29 publications

References 52 publications

Effect of Chitosan/Thyme Oil Coating and UV-C on the Softening and Ripening of Postharvest Blueberry Fruits

Effect of Chitosan/Thyme Oil Coating and UV-C on the Softening and Ripening of Postharvest Blueberry Fruits

Variation in Cell Wall Metabolism and Flesh Firmness of Four Apple Cultivars during Fruit Development

1-Methylcyclopropene counteracts ethylene promotion of fruit softening and roles of MiERF2/8 and MiPG in postharvest mangoes

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