Reduction of postharvest anthracnose and enhancement of disease resistance in ripening mango fruit by nitric oxide treatment

Fruit ripening is a complex physiological process involving significant external and internal modifications. Classic edible fleshy fruits have been classified as climacteric or non-climacteric according to their dependence on the phyto hormone ethylene; however, data have increasingly confirmed the involvement of the free radical nitric oxide (NO) in this process. Moreover, the exogenous application of NO demonstrates its beneficial effects on fruit quality.

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“…Moreover, treatment with NO might also induce disease resistance (Hu et al . ; Zhou et al . ; Li et al .…”

Section: Nitric Oxide (No) a Novel Regulator Of Fruit Ripeningmentioning

confidence: 99%

Nitric oxide on/off in fruit ripening

Corpas

Palma

2018

Plant Biol J

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“…Synthetic fungicides are the most widely used to enhance postharvest quality of fruit; however, the excessive uses are associated with fungicide toxicity, environmental pollution, development of fungicide resistance in pathogens, and potential risks to human health; consequently, new alternative strategies for reducing postharvest disease are required (Hu et al, 2014). The uses of gamma radiation (Rashid et al, 2015) or electromagnetic radiation as UV-C (Cia et al, 2007) are other options; nevertheless, these applications implicate infrastructure and high costs being an undesirable implementation for small producers.…”

Section: Introductionmentioning

confidence: 99%

Chitosan composite films: physicochemical characterization and their use as coating in papaya Maradol stored at room temperature

et al. 2017

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The main objectives of this study were; first formulate and evaluate some properties of chitosan composite films enriched with essential oils of cinnamon, thyme, clove, and lime alone or in combination; and second select the most appropriate formulation and evaluate their effect on physiological properties and fungal incidence of papaya Maradol stored at environmental tropical conditions. Breaking strength, thickness, color, moisture, water vapor permeability, solubility and water sorption of films were measured. Furthermore, in vitro activity was evaluated against Colletotrichum gloeosporioides Penz. Using multivariate analysis and based on the most desirable characteristics (low water sorption values, water vapor permeability, solubility, and greater inhibition of C. gloeosporioides), three formulations of films were used lately for coated fruit of papaya Maradol and stored at 28 ± 2 °C and 85 % RH. Two control treatments were included: one uncoated and other treated with Mancozeb® fungicide. At six days of storage, the fruit of both control treatments showed evident signs of ripening; contrary to the treatments wherein fruit were coated, and had low respiration, other attributes as firmness, little change in the external color of the fruit were manifested. Similarly, the use of composite films reduced the fungus C. gloeosporioides by 30-50 %. The use of film enriched with essential oil of 1 % cinnamon- 1 % thyme improved the characteristics of fruit quality, increased shelf life and reduced by 50 % the incidence of fungus in papaya Maradol stored under humid tropic environmental conditions. This coating can be an alternative to potentially reduce the need for cold storage during postharvest handling.

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“…Similarly, enhanced resistance against anthracnose rot caused by C. gloeosporioides in relation to promoted lignin was also observed in NO‐treated “Guifei” mango fruit (Hu et al . ). Based on this finding, it was suggested that enhancement of total phenolic and lignin biosynthesis in SA‐treated mango fruits on C. gloeosporioides infection may result in the reinforcement of the cell wall and formation of an efficient physical barrier to restrict subsequent fungal penetration and infection.…”

Section: Resultsmentioning

confidence: 97%

“…The lignin content was 22.9% higher in SA-treated fruits than in control fruit after 7 days of inoculation. Previous studies had demonstrated that SA treatment increases the resistance in citrus fruit (Zhou et al 2014) and mango fruit (Zeng et al 2006 observed in NO-treated "Guifei" mango fruit (Hu et al 2014). Based on this finding, it was suggested that enhancement of total phenolic and lignin biosynthesis in SA-treated mango fruits on C. gloeosporioides infection may result in the reinforcement of the cell wall and formation of an efficient physical barrier to restrict subsequent fungal penetration and infection.…”

Section: Effects Of Sa Treatment On Content Of Antifungal Compounds Omentioning

confidence: 93%

Defense Responses of Salicylic Acid in Mango Fruit Against Postharvest Anthracnose, Caused by Colletotrichum gloeosporioides and its Possible Mechanism

Ren

Chen

et al. 2016

Journal of Food Safety

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The effects and mechanisms of salicylic acid (SA) on defense response to Colletotrichum gloeosporioides from mango fruits were investigated by in vitro and in vivo test. In vitro experiment results showed that SA significantly reduced mycelial growth of C. gloeosporioides in a concentration‐dependent manner. SA effectively controlled anthracnose decay on inoculated mango fruit, as well as natural infection. Disease incidence and lesion diameter in SA‐treated fruit were significantly lower than those of the control fruit. SA treatment increased the activities of chitinase, β‐1,3‐glucanase, phenylalanine ammonia‐lyase and polyphenoloxidase, and the content of total phenolic compounds and lignin in mango fruit. Moreover, SA treatment effectively maintained fruit firmness by suppressing conversion of insoluble protopectin into water soluble pectin. And correlation analysis showed there is a higher negative correlation between fruit firmness and disease incidence. These findings suggest that the effect of SA on postharvest diseases was attributed to its direct antimicrobial activity and the elicitation of resistant responses, as well maintaining the firmness in mango fruit. Therefore, SA treatment is a promising measure for controlling postharvest anthracnose rot in mango. Practical Applications Induction of fruit resistance against pathogenic infection with biological or chemical elicitors has been thought to be a promising approach for controlling of postharvest diseases and reducing the use of synthetic fungicides. Anthracnose, caused by Colletotrichum gloeosporioides is the predominant postharvest disease in mango production that causes severe postharvest losses and fruit quality deterioration. SA is a natural plant substance involved in plant defense responses to biotic stresses. The present results from in vitro and in vivo experiment suggested that SA treatment could effectively inhibit mycelial growth of C. gloeosporioides, enhance resistance of mango fruit against the pathogen and reduce anthracnose rot, as well maintain fruit firmness. Hence, SA can be applied in mango storage and preservation.

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Reduction of postharvest anthracnose and enhancement of disease resistance in ripening mango fruit by nitric oxide treatment

Cited by 119 publications

References 47 publications

Nitric oxide on/off in fruit ripening

Nitric oxide on/off in fruit ripening

Chitosan composite films: physicochemical characterization and their use as coating in papaya Maradol stored at room temperature

Defense Responses of Salicylic Acid in Mango Fruit Against Postharvest Anthracnose, Caused by Colletotrichum gloeosporioides and its Possible Mechanism

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