Wound healing in citrus fruit is promoted by chitosan and Pichia membranaefaciens as a resistance mechanism against Colletotrichum gloeosporioides

Zhao, Yijie; Deng, Lili; Zhou, Yahan; Ming, Jian; Yao, Shixiang; Zeng, Kaifang

doi:10.1016/j.postharvbio.2018.07.007

Cited by 27 publications

(15 citation statements)

References 67 publications

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“…Pectin methylesterase results in the demethylated pectins that can be degraded by polygalacturonase [13]. It was also observed that accumulation of cell wall-degrading enzymes in plant could be induced by pathogen invasion [29]. In this study, PG and PME activities were found higher in infected fruits (Figure 4), resulting in the rotting of citrus fruits.…”

Section: Discussionmentioning

confidence: 50%

“…Strangely, in this study, we found that P. italicum infection resulted in higher lignin content compared to control, especially at day 1 (Figure 1d). Considering the important role of lignin against pathogens, higher accumulation of lignin might indicate a defense response that retards damage caused by pathogen, which was also reported by Zhao et al [29]. However, P. italicum still infected citrus fruit successfully.…”

Section: Discussionmentioning

confidence: 65%

“…In this study, our results showed that P. italicum increased WSP content while decreased ASP content compared to control fruit (Figure 1a,b). These results suggested the enhancement of the dissolving of ASP to WSP after P. italicum inoculation, which resulted in solubilization of loosely bound pectin in mandarin peel, which was similar to C. gloeosporioides infected valencia orange [29]. Hemicellulose is another polysaccharide component of the primary cell wall and depolymerization of hemicellulose were responsible for fruit softening during ripening [37].…”

Section: Discussionmentioning

confidence: 99%

“…Several studies have demonstrated that cell wall compounds can be affected by fungi infection [29,34]. Pectin is a cell wall polysaccharide in plants, including fruit crops [35] and pectin is an essential compound in the cell wall maintaining the structural integrity [36].…”

Section: Discussionmentioning

confidence: 99%

“…Three grams of tissue from thirty mandarin fruit peel were used for pectin extraction according to Cheng et al [28] with minor modification. Then water-soluble pectin (WSP) and acid-soluble pectin (ASP) contents were measured using the method described by Zhao et al [29].…”

Section: Methodsmentioning

confidence: 99%

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Mechanism of Cell Wall Polysaccharides Modification in Harvested ‘Shatangju’ Mandarin (Citrus reticulate Blanco) Fruit Caused by Penicillium italicum

Shi

et al. 2019

Biomolecules

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Modification of cell wall polysaccharide in the plant plays an important role in response to fungi infection. However, the mechanism of fungi infection on cell wall modification need further clarification. In this study, the effects of Penicillium italicum inoculation on ‘shatangju’ mandarin disease development and the potential mechanism of cell wall polysaccharides modification caused by P. italicum were investigated. Compared to the control fruit, P. italicum infection modified the cell wall polysaccharides, indicated by water-soluble pectin (WSP), acid-soluble pectin (ASP), hemicellulose and lignin contents change. P. italicum infection enhanced the activities of polygalacturonase (PG), pectin methylesterase (PME), and the expression levels of xyloglucanendotransglucosylase/hydrolase (XTH) and expansin, which might contribute to cell wall disassembly and cellular integrity damage. Additionally, higher accumulation of reactive oxygen species (ROS) via decreasing antioxidant metabolites and the activities of antioxidant enzymes including superoxide dismutase (SOD), catalase (CAT), and ascorbate peroxidase (APX) also contributed to the cell wall polysaccharides modification. Meanwhile, the gene expression levels of hydroxyproline-rich glycoprotein (HRGP) and germin-like protein (GLP) were inhibited by pathogen infection. Altogether, these findings suggested that cell wall degradation/modification caused by non-enzymatic and enzymatic factors was an important strategy for P. italicum to infect ‘shatangju’ mandarin.

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Section: Discussionmentioning

confidence: 50%

Section: Discussionmentioning

confidence: 65%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Mechanism of Cell Wall Polysaccharides Modification in Harvested ‘Shatangju’ Mandarin (Citrus reticulate Blanco) Fruit Caused by Penicillium italicum

Shi

et al. 2019

Biomolecules

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The crucial evaluation indexes and relative measurement methods of edible value for fresh fruits and vegetables: A review

Zhang,

Wang,

Chen

et al. 2024

Future Postharvest and Food

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Fresh fruits and vegetables (F&V), with their attractive sensory, flavors, and nutrients, occupy a highly valuable part of people's daily diet. Plenty of postharvest studies have focused on the effects of preservation techniques on the edible quality and nutrients of F&V. Therefore, it is crucial to summarize the research methods of those quality and nutritional indicators for F&V. This work reviews the measurement and analysis methods on these parameters of postharvest F&V which have been validated by numerous publications, including firmness, sugars/acids, pigments, phenols, etc. Importantly, some instruments are involved in these experimental methods, such as firmness tester, spectrophotometer, gas chromatograph, and so on. Furthermore, some promising analysis methods in the past decades combined with advanced technologies are also raised in our discussion. This work is expected to provide guidance and normative significance for future research on quality assessment, preservation, and processing characteristics of F&V.

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Characteristic changes in cell wall metabolism and related gene expression in different parts of Tarocco blood orange pulp during cold storage

et al. 2022

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Wound healing in citrus fruit is promoted by chitosan and Pichia membranaefaciens as a resistance mechanism against Colletotrichum gloeosporioides

Cited by 27 publications

References 67 publications

Mechanism of Cell Wall Polysaccharides Modification in Harvested ‘Shatangju’ Mandarin (Citrus reticulate Blanco) Fruit Caused by Penicillium italicum

Mechanism of Cell Wall Polysaccharides Modification in Harvested ‘Shatangju’ Mandarin (Citrus reticulate Blanco) Fruit Caused by Penicillium italicum

The crucial evaluation indexes and relative measurement methods of edible value for fresh fruits and vegetables: A review

Characteristic changes in cell wall metabolism and related gene expression in different parts of Tarocco blood orange pulp during cold storage

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