Efficacy of aroma compounds for postharvest management of mango anthracnose

Kumar, Amarjeet; Kudachikar, V. B.

doi:10.1007/s41348-019-00286-w

Cited by 9 publications

(5 citation statements)

References 35 publications

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“…It also indicates that the growth reduction of the major pathogens isolated from mango is attributed to PD rather than ethanol. Mycelial growth of C. gloeosporioides was also inhibited by using aroma compounds, i.e., trans -cinnamaldehyde , citral and phenylacetaldehyde [ 11 ]. Feng et al [ 3 ] reported an effective inhibition of C. gloeosporioides in mango while using camptothecin (CPT-1), a naturally occurring quinoline alkaloid with significant cantineoplastic and pesticidal activities.…”

Section: Discussionmentioning

confidence: 99%

“…Zhong-hui et al [ 34 ] and Okemo et al [ 35 ] suggested that the neem extract’s killing ability against different pathogenic microorganisms depends on extraction time, concentration and cell wall constituents. Kumar and Kudachikar [ 11 ] stated that the possible antifungal mechanisms of natural plant extracts against pathogens could be attributed to the disruption of membrane integrity and cellular components’ leakage. Zakawa et al [ 20 ] used neem leaf extracts and prevented the mycelial growth of Botrytis cinerea, Aspergillus flavus and Aspergillus niger fungi causing postharvest rot in mango.…”

Section: Discussionmentioning

confidence: 99%

“…A considerable number of essential oils exhibited antimicrobial activities against different pathogens [ 9 , 10 ]. Plant extracts such as aroma compounds ( trans -cinnamaldehyde, citral, and phenylacetaldehyde [ 11 ], Mentha piperita L. essential oil (MPEO) [ 12 ], volatile organic compounds [ 2 ], essential oil from Cymbopogon citratus (D.C. ex Nees) Stapf [ 13 ], and essential oil extracted from Cympopogon citratus and Lippia rehmannii [ 14 ] have suppressed anthracnose in mango fruit. Feng et al [ 3 ] evaluated the antifungal activity of camptothecin (a naturally occurring quinoline alkaloid having a high pesticidal activity) against C. gloeosporioides causing anthracnose disease in mango.…”

Section: Introductionmentioning

confidence: 99%

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Antifungal Activity of Propyl Disulfide from Neem (Azadirachta indica) in Vapor and Agar Diffusion Assays against Anthracnose Pathogens (Colletotrichum gloeosporioides and Colletotrichum acutatum) in Mango Fruit

et al. 2021

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Microorganisms causing anthracnose diseases have a medium to a high level of resistance to the existing fungicides. This study aimed to investigate neem plant extract (propyl disulfide, PD) as an alternative to the current fungicides against mango’s anthracnose. Microorganisms were isolated from decayed mango and identified as Colletotrichum gloeosporioides and Colletotrichum acutatum. Next, a pathogenicity test was conducted and after fulfilling Koch’s postulates, fungi were reisolated from these symptomatic fruits and we thus obtained pure cultures. Then, different concentrations of PD were used against these fungi in vapor and agar diffusion assays. Ethanol and distilled water were served as control treatments. PD significantly (p ≤ 0.05) inhibited more of the mycelial growth of these fungi than both controls. The antifungal activity of PD increased with increasing concentrations. The vapor diffusion assay was more effective in inhibiting the mycelial growth of these fungi than the agar diffusion assay. A good fit (R2, 0.950) of the experimental data in the Gompertz growth model and a significant difference in the model parameters, i.e., lag phase (λ), stationary phase (A) and mycelial growth rate, further showed the antifungal efficacy of PD. Therefore, PD could be the best antimicrobial compound against a wide range of microorganisms.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Antifungal Activity of Propyl Disulfide from Neem (Azadirachta indica) in Vapor and Agar Diffusion Assays against Anthracnose Pathogens (Colletotrichum gloeosporioides and Colletotrichum acutatum) in Mango Fruit

et al. 2021

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“…Koul [ 29 ] stated that either the characteristic odor of sulfur compounds or some physiological mechanism of interaction make the PD an effective grain protectant against insect pests. Kumar and Kudachikar [ 30 ] reported that the antifungal mechanisms of natural plant extracts against pathogens could be attributed to the disruption of membrane integrity and cellular component leakage. As microbial growth symptoms appear on the longan fruit’s surfaces, in the current research work we did not study the antimicrobial efficiency of PD on specific microorganisms, but generally evaluated the decay of longan fruit.…”

Section: Discussionmentioning

confidence: 99%

Effects of Various Polymeric Films on the Pericarp Microstructure and Storability of Longan (cv. Shixia) Fruit Treated with Propyl Disulfide Essential Oil from the Neem (Azadirachta indica) Plant

et al. 2022

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Plant extracts represent a rich repository of metabolites with antioxidant and antimicrobial properties. Neem (Azadirachta indica) is a medicinal plant considered the tree of the 21st century. In this study, we investigated the antioxidant and antimicrobial effects of propyl disulfide (PD), a major volatile compound in neem seed, against the pericarp browning (BI), microbial decay incidence (DI), and water loss of longan fruit. Fresh longan cv. Shixia samples were packaged in oriented polypropylene (OPP) and polyethene (PE) packages of different thicknesses (20, 40, and 60 µm). Sterile gauze was fixed inside the packages and 500 uL of PD was placed on them to avoid the direct contact of PD with fruit samples. Packages were sealed immediately to minimize vaporization and stored at 12 ± 1 °C for 18 days. Fruit samples packaged in open net packages served as controls. The results showed that fruit treated with PD in OPP and PE packages significantly prevented losses of water, DI, and BI compared to control treatment. PD also maintained the color, TSS values, TA values, pH values, high peel firmness, high TPC content, and high TFC content, and reduced the activity levels of PPO and POD. Scanning electron microscope (SEM) analysis indicated that the exocarp, mesocarp, and endocarp of longan peel were smooth, uniform, and compact with no free space compared to control, where crakes, a damaged and loose structure, and a lot of fungal mycelia were found. The shortest shelf life of 9 days was observed in control as compared to 18 days in OPP-20 and OPP-40; 15 days in OPP-60, PE-20, and PE-40; and 12 days in PE-60 packaging films. Therefore, PD as a natural antioxidant and antimicrobial agent, in combination with OPP-20 and OPP-40 polymeric films, could successfully be applied commercially to extend the postharvest shelf life of longan.

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“…7,8 As well as the use of natural and biodegradable biofungicides, such as trans-cinnamaldehyde, citral and phenylacetaldehyde, for the control of anthracnose disease in mango after harvest. 9 Fitzell and Peak 10 determined that spores are the most important source of inoculum in Australia, which are produced on terminal branches, mummified inflorescences, floral bracts and leaves Under laboratory conditions spores are produced over a wide temperature range (10-30 °C) and relative humidity of 95-97%.…”

Section: Introductionmentioning

confidence: 99%

Mango anthracnose integrated management

Martínez-Bolaños¹,

Noriega-Cantú²,

Garrido-Ramirez³

et al. 2022

HIJ

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Mango anthracnose in mango in the tropical and subtropical regions of Mexico is a disease that induces serious economic losses, caused by Colletotrichum gloesporioides. The objective of this research was to determine the efficiency of integrated management for anthracnose control and to identify the critical moment for disease management. The work was carried out on cv. 'Ataúlfo', in Guerrero, Mexico, in three production cycles. The identification of the pathogen was confirmed and during a period of 11 months the abundance of spores in the canopy of the trees was examined. Three treatments were evaluated: integrated management with severe pruning (MIM-Pruning), integrated management without severe pruning (MIM) and Control treatment. The climate was conducive to the development of the disease (>80% incidence). The greatest increase in spores, with 65.9 to 84.1 spores/week, was observed during summer vegetative growth, in the phase of flowering and fruit set on the rachis, with its subsequent decrease in fruit growth. The MIM-Pruning and MIM treatment showed consistent results of less area under the disease curve progress (AUDCP), in foliage and flowering, causing a greater definitive fruit set per inflorescence and marketable fruits per tree with respect to the Control (P ≤0.05). Field pathogen population management should begin with the spraying of fungicide products in the summer vegetative growth phase and before the full flowering stage. Pruning is a practice that should be included in anthracnose management.

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Efficacy of aroma compounds for postharvest management of mango anthracnose

Cited by 9 publications

References 35 publications

Antifungal Activity of Propyl Disulfide from Neem (Azadirachta indica) in Vapor and Agar Diffusion Assays against Anthracnose Pathogens (Colletotrichum gloeosporioides and Colletotrichum acutatum) in Mango Fruit

Antifungal Activity of Propyl Disulfide from Neem (Azadirachta indica) in Vapor and Agar Diffusion Assays against Anthracnose Pathogens (Colletotrichum gloeosporioides and Colletotrichum acutatum) in Mango Fruit

Effects of Various Polymeric Films on the Pericarp Microstructure and Storability of Longan (cv. Shixia) Fruit Treated with Propyl Disulfide Essential Oil from the Neem (Azadirachta indica) Plant

Mango anthracnose integrated management

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