Application of Plant Extracts to Control Postharvest Gray Mold and Susceptibility of Apple Fruits to B. cinerea from Different Plant Hosts

Šernaitė, Lina; Rasiukevičiūtė, Neringa; Valiuškaitė, Alma

doi:10.3390/foods9101430

Cited by 44 publications

(26 citation statements)

References 46 publications

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“…To quantify these effects, the disease incidence percentages (DIP) were calculated [ 51 ], and the results obtained over five days after inoculation are given in Table 5 .…”

Section: Resultsmentioning

confidence: 99%

Assessing the Control of Postharvest Gray Mold Disease on Tomato Fruit Using Mixtures of Essential Oils and Their Respective Hydrolates

Brito

Hansen

Espinoza

et al. 2021

Plants

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Gray mold disease, which is caused by Botrytis cinerea Pers ex. Fr., results in serious economic losses to Lycopersicum esculentum (tomato) crop productivity. In this study, we explored the possibility that mixtures of essential oils (EOs) and their respective hydrolates (HYSs) could be used to control this disease. Thus, EOs and HYSs were obtained from Origanum vulgare, Thymus vulgaris, Citrus limon, and Citrus sinensis by hydrodistillation. In vitro antifungal activities were evaluated, and EC50 values of 15.9 and 19.8 µg/mL were obtained for EOs of thyme and oregano, respectively. These activities are due mainly to volatile compounds, thymol and carvacrol. Results from in vivo assays show that although most tomatoes were infested five days after inoculation, the damage was considerably reduced by the application of an EO/HYS mixture of thyme. The disease incidence indexes of B. cinerea tomato rot, percentage and severity, measured four days after inoculation, were reduced by 70% and 76%, respectively, as compared with the inoculum control. These results suggest that a combination of HYSs and EOs enhances antifungal activity, and that optimization of relative concentrations, volumes, and the nature of the compounds, could design a formulation able to control B. cinerea inoculum on tomato fruits.

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“…To quantify these effects, the disease incidence percentages (DIP) were calculated [ 51 ], and the results obtained over five days after inoculation are given in Table 5 .…”

Section: Resultsmentioning

confidence: 99%

Assessing the Control of Postharvest Gray Mold Disease on Tomato Fruit Using Mixtures of Essential Oils and Their Respective Hydrolates

Brito

Hansen

Espinoza

et al. 2021

Plants

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“…Volatile compounds of essential oils were established by gas chromatography - mass spectrometry (GC-MS). The analysis was executed on GC-2010Plus/GCMS-QP2010 Ultra system (Shimadzu, Kyoto, Japan) equipped with Rxi-5MS capillary column (33 m × 0.25 mm; 0.25 μm) (Restek, Bellefonte, PA, USA), as defined in previous studies [ 11 , 12 ].…”

Section: Methodsmentioning

confidence: 99%

“…Essential oils (EO) demonstrate a distinct level of antimicrobial activity to various ranges of strawberry pathogens [ 6 , 9 , 11 , 12 ]. The EO includes terpenes, terpenoids, aromatic, and aliphatic constituents, and most importantly, they contain antioxidants and biologically active compounds.…”

Section: Introductionmentioning

confidence: 99%

“…Growing pathogens resistance occurs because of the extensive use of chemical pesticides for plant protection. The new sources of natural active ingredients for plant protection may solve pesticide resistance problems and reduce environmental and food contamination [ 7 , 11 , 12 , 28 ]. This study aims to evaluate the inhibition of C. acutatum by thyme, sage, and peppermint EO in vitro also on the detached strawberry leaves, and determine EO chemical composition.…”

Section: Introductionmentioning

confidence: 99%

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The Use of Essential Oils from Thyme, Sage and Peppermint against Colletotrichum acutatum

Morkeliūnė

Rasiukevičiūtė

Šernaitė

et al. 2021

Plants

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The Colletotrichum spp. is a significant strawberry pathogen causing yield losses of up to 50%. The most common method to control plant diseases is through the use of chemical fungicides. The findings of plants antimicrobial activities, low toxicity, and biodegradability of essential oils (EO), make them suitable for biological protection against fungal pathogens. The aim is to evaluate the inhibition of Colletotrichum acutatum by thyme, sage, and peppermint EO in vitro on detached strawberry leaves and determine EO chemical composition. Our results revealed that the dominant compound of thyme was thymol 41.35%, peppermint: menthone 44.56%, sage: α,β-thujone 34.45%, and camphor: 20.46%. Thyme EO inhibited C. acutatum completely above 200 μL L−1 concentration in vitro. Peppermint and sage EO reduced mycelial growth of C. acutatum. In addition, in vitro, results are promising for biological control. The detached strawberry leaves experiments showed that disease reduction 4 days after inoculation was 15.8% at 1000 μL L−1 of peppermint EO and 5.3% at 800 μL L−1 of thyme compared with control. Our findings could potentially help to manage C. acutatum; however, the detached strawberry leaves assay showed that EO efficacy was relatively low on tested concentrations and should be increased.

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“…Composition of the volatile compounds responsible for antifungal activities of each extract was determined previously using gas chromatography/mass spectrometry [ 29 ]. The main component of the cinnamon extract was trans-cinnamaldehyde, clove—eugenol and eugenol acetate—, and laurel—eucalyptol and alpha-terpinyl acetate [ 29 , 30 ].…”

Section: Methodsmentioning

confidence: 99%

Sensitivity of Botrytis cinerea Isolates Complex to Plant Extracts

Dėnė

Valiuškaitė

2021

Molecules

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New agricultural strategies aim to reduce the use of pesticides due to their damage to the environment and humans, and the caused resistance to pathogens. Therefore, alternative sources of antifungal compounds from plants are under investigation lately. Extracts from plants have a wide composition of chemical compounds which may complicate the development of pathogen resistance. Botrytis cinerea, causing grey mould, is an important horticultural and ornamental pathogen, responsible for the relevant yield and quality losses. B. cinerea isolated from a different plant host may differ in the sensitivity to antifungal substances from plants. Assessing the importance of research covering a wide range of pathogens for the rapid development of biopesticides, this study aims to determine the sensitivity of the B. cinerea isolate complex (10 strains) to plant extracts, describe morphological changes caused by the extract treatment, and detect differences between the sensitivity of different plant host isolates. The results showed the highest sensitivity of the B. cinerea isolates complex to cinnamon extract, and the lowest to laurel extract. In contrast, laurel extract caused the most changes of morphological attributes in the isolates. Five B. cinerea isolates from plant hosts of raspberry, cabbage, apple, bell pepper, and rose were grouped statistically according to their sensitivity to laurel extract. Meanwhile, the bell pepper isolate separated from the isolate complex based on its sensitivity to clove extract, and the strawberry and apple isolates based on their sensitivity to cinnamon extract.

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Application of Plant Extracts to Control Postharvest Gray Mold and Susceptibility of Apple Fruits to B. cinerea from Different Plant Hosts

Cited by 44 publications

References 46 publications

Assessing the Control of Postharvest Gray Mold Disease on Tomato Fruit Using Mixtures of Essential Oils and Their Respective Hydrolates

Assessing the Control of Postharvest Gray Mold Disease on Tomato Fruit Using Mixtures of Essential Oils and Their Respective Hydrolates

The Use of Essential Oils from Thyme, Sage and Peppermint against Colletotrichum acutatum

Sensitivity of Botrytis cinerea Isolates Complex to Plant Extracts

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