Endophytic bacteria from strawberry plants control gray mold in fruits via production of antifungal compounds against Botrytis cinerea L.

Moura, Ginaini Grazielli Doin de; Barros, Alexandre Guimarães de Almeida; Machado, Franklin Jackson; Martins, Adalvan Daniel; Silva, Caroline Marcela da; Durango, Luis Guillermo Cuadrado; Forim, Moacir Rossi; Alves, Eduardo; Pasqual, Moacir; Soares, Joyce Dória Rodrigues

doi:10.1016/j.micres.2021.126793

Cited by 34 publications

(13 citation statements)

References 69 publications

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“…Pantoea sp. MQT16M1 is also a great producer of antifungal metabolites, such as salicylamide, maculosin, and herniarin, allowing it to inhibit up to 80% of Botrytis mycelial growth [76] Fungi can also produce antimicrobial molecules [2]. Some examples of such fungi are Nigrospora oryzae 2693 and N. oryzae 2778, Trichoderma asperellum 2739, Penicillium commune 2748, Fusarium proliferatum 2751, and Chaetomium globosum 2773, whose secondary metabolites produced inhibition of 17, 57, 58, 27, 69, and 56% of Botrytis, respectively [84].…”

Section: Antimicrobial Moleculesmentioning

confidence: 99%

Mechanisms of Action of Microbial Biocontrol Agents against Botrytis cinerea

Roca-Couso

Flores-Félix

Rivas

2021

JoF

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Botrytis cinerea is a phytopathogenic fungus responsible for economic losses from USD 10 to 100 billion worldwide. It affects more than 1400 plant species, thus becoming one of the main threats to the agriculture systems. The application of fungicides has for years been an efficient way to control this disease. However, fungicides have negative environmental consequences that have changed popular opinion and clarified the need for more sustainable solutions. Biopesticides are products formulated based on microorganisms (bacteria or fungi) with antifungal activity through various mechanisms. This review gathers the most important mechanisms of antifungal activities and the microorganisms that possess them. Among the different modes of action, there are included the production of diffusible molecules, both antimicrobial molecules and siderophores; production of volatile organic compounds; production of hydrolytic enzymes; and other mechanisms, such as the competition and induction of systemic resistance, triggering an interaction at different levels and inhibition based on complex systems for the production of molecules and regulation of crop biology. Such a variety of mechanisms results in a powerful weapon against B. cinerea; some of them have been tested and are already used in the agricultural production with satisfactory results.

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Section: Antimicrobial Moleculesmentioning

confidence: 99%

Mechanisms of Action of Microbial Biocontrol Agents against Botrytis cinerea

Roca-Couso

Flores-Félix

Rivas

2021

JoF

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“…Increasing the bacteria count leads to colonization and also altered the structure of the pathogen. Although some researchers reported the bacterial area was able to generate some kind of bioactive compounds, this research could not claim due to the requirement of chromatography analysis combined with mass spectrometry (de Andrade et al, 2019;de Moura et al, 2021). Also, the microstructure of the control samples showed the cells lost their well-defined boundary membrane.…”

Section: Morphological Analysis Of the Film And Strawberrymentioning

confidence: 86%

Effect of dielectric barrier discharge cold plasma on the bio-nanocomposite film and its potential to preserve the quality of strawberry under modified atmosphere packaging

Rashvand

Matera

Altieri

et al. 2023

Preprint

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The present study aimed to investigate the effect of cold plasma on the developed bio-nanocomposite film. A dielectric barrier discharge system was utilized to generate the cold plasma. The films were treated under three different times (5, 10 and 15 min) and the characteristics of the films were evaluated. Results showed that the mechanical properties (tensile strength and elongation at break), water vapor permeability, oxygen transmission rate, moisture content and water contact angle characteristics were improved by cold plasma treatment. In addition, the cold plasma treatment influence the thermal stability and crystallization of the films. Also, the shelf life of the strawberries which were packed in the treated films under modified atmosphere condition was assessed. The results revealed that the mechanical properties (firmness and Young's modulus), chemical attributes (pH, soluble solid content and total ascorbic acid), physical characteristics (weight loss and color features), microbial activities (bacteria. yeast and mould) of the samples were affected by the treated films. As a result, cold plasma modification can be applied as an effective method to maintain and preservation of fresh fruit.

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“…Because B.c . was a necrotrophic, haploid, heterothallic ascomycete with a specific infection strategy, blueberries, for example, had been considerably affected. , Plant pathogenic fungi were primarily responsible for illnesses such as fruit rot and leaf necrosis, which cost the globe billions of dollars each year. , Kiwifruit is a popular fruit with a distinct flavor and great nutritional content. P.s .…”

Section: Introductionmentioning

confidence: 99%

Antifungal Activity of Novel Indole Derivatives Containing 1,3,4-Thiadiazole

He,

Hu,

Xing

et al. 2024

J. Agric. Food Chem.

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In this study, 24 indole derivatives containing 1,3,4-thiadiazole were discovered and synthesized. The target compounds' antifungal efficacy against 14 plant pathogenic fungal pathogens was then determined in vitro. With an EC 50 value of 2.7 μg/mL, Z2 demonstrated the highest level of bioactivity among them against Botrytis cinerea (B.c.), exceeding the concentrations of the control prescription drugs azoxystrobin (Az) (EC 50 = 14.5 μg/mL) and fluopyram (Fl) (EC 50 = 10.1 μg/mL). Z2 underwent in vivo testing on blueberry leaves in order to evaluate its usefulness in real-world settings. A reasonable protective effect was obtained with a control effectiveness of 93.0% at 200 μg/mL, which was superior to those of Az (83.0%) and Fl (52.0%). At 200 μg/mL, this chemical had an efficacy of 84.0% in terms of curative efficacy. These figures outperformed those of Az (69.0%) and Fl (48.0%). Scanning electron microscopy (SEM) experiments and light microscopy experiments showed that Z2 altered the integrity of the cell wall and cell membrane of the pathogenic fungus B.c., which led to an increase in the content of malondialdehyde (MDA), cellular leakage, and cellular permeability. Enzyme activity assays and molecular docking studies indicated that Z2 could act as a potential succinate dehydrogenase inhibitor (SDHI). It was hypothesized that Z2 could cause disruption of mycelial cell membranes, which in turn leads to mycelial death. According to the research, indole derivatives containing 1,3,4-thiadiazole were expected to evolve into new fungicides due to their significant antifungal effects on plant fungi.

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Endophytic bacteria from strawberry plants control gray mold in fruits via production of antifungal compounds against Botrytis cinerea L.

Cited by 34 publications

References 69 publications

Mechanisms of Action of Microbial Biocontrol Agents against Botrytis cinerea

Mechanisms of Action of Microbial Biocontrol Agents against Botrytis cinerea

Effect of dielectric barrier discharge cold plasma on the bio-nanocomposite film and its potential to preserve the quality of strawberry under modified atmosphere packaging

Antifungal Activity of Novel Indole Derivatives Containing 1,3,4-Thiadiazole

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