Inhibition of mycotoxin-producing fungi by Bacillus strains isolated from fish intestines

Veras, Flávio Fonseca; Corrêa, Ana Paula Folmer; Welke, Juliane Elisa; Brandelli, Adriano

doi:10.1016/j.ijfoodmicro.2016.08.035

Cited by 47 publications

(24 citation statements)

References 71 publications

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“…Bacillus strains isolated from aquatic environments were evaluated for their antifungal effect on A. flavus and A. carbonarius, producers of AFB 1 and ochratoxin A, respectively [89]. Results showed that the lipopeptides (iturin A and surfactin isomers in extracts) produced by Bacillus sp.…”

Section: Antibiotics and Proteases Produced By Bacillus Sppmentioning

confidence: 99%

“…P1 strain exhibited high anti-Aspergillus activities on mycelial growth, conidial germination, and AFB 1 and ochratoxin A production. Veras et al [89] also analyzed the extracts from supernatants and cell pellets, and results indicated that lipopeptides were extracted mainly from cell-free supernatants. González Pereyra et al [18] also demonstrated that lipopeptides, the extracellular compounds produced by soil Bacillus strains, were able to almost completely inhibit A. parasiticus growth and AFB 1 production.…”

Section: Antibiotics and Proteases Produced By Bacillus Sppmentioning

confidence: 99%

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Control of Aflatoxigenic Molds by Antagonistic Microorganisms: Inhibitory Behaviors, Bioactive Compounds, Related Mechanisms, and Influencing Factors

Ren

Zhang

et al. 2020

Toxins

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Aflatoxin contamination has been causing great concern worldwide due to the major economic impact on crop production and their toxicological effects to human and animals. Contamination can occur in the field, during transportation, and also in storage. Post-harvest contamination usually derives from the pre-harvest infection of aflatoxigenic molds, especially aflatoxin-producing Aspergilli such as Aspergillus flavus and A. parasiticus. Many strategies preventing aflatoxigenic molds from entering food and feed chains have been reported, among which biological control is becoming one of the most praised strategies. The objective of this article is to review the biocontrol strategy for inhibiting the growth of and aflatoxin production by aflatoxigenic fungi. This review focuses on comparing inhibitory behaviors of different antagonistic microorganisms including various bacteria, fungi and yeasts. We also reviewed the bioactive compounds produced by microorganisms and the mechanisms leading to inhibition. The key factors influencing antifungal activities of antagonists are also discussed in this review.

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Section: Antibiotics and Proteases Produced By Bacillus Sppmentioning

confidence: 99%

Section: Antibiotics and Proteases Produced By Bacillus Sppmentioning

confidence: 99%

Control of Aflatoxigenic Molds by Antagonistic Microorganisms: Inhibitory Behaviors, Bioactive Compounds, Related Mechanisms, and Influencing Factors

Ren

Zhang

et al. 2020

Toxins

View full text Add to dashboard Cite

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“…Actinomycetes (e.g., Verheecke et al, 2014), Lactobacilli (e.g., Romanens et al, 2019), Bifidobacteria (e.g., Ghazvini et al, 2016), and Bacilli (Siahmoshteh et al, 2017) are the best-studied groups from these aspects. Several studies have conducted screening on microbial collections to find potential biocontrol isolates that inhibit mold growth, testing (1) bacteria ranging from endophytes and rhizosphere species (Wang et al, 2013); (2) traditional fermentation products (Ahlberg et al, 2017); (3) various other samples where natural interactions with toxigenic molds are far less plausible, as in halophilic soils (Jafari et al, 2018) or fish intestines (Veras et al, 2016). The effects on toxin production and the underlying mechanisms of growth and toxigenic nature are, similarly to yeasts, less understood and often not attempted to uncover.…”

Section: Aspergilli and Their Mycotoxins Versus Soil Microbiomementioning

confidence: 99%

The Aspergilli and Their Mycotoxins: Metabolic Interactions With Plants and the Soil Biota

et al. 2020

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Species of the highly diverse fungal genus Aspergillus are well-known agricultural pests, and, most importantly, producers of various mycotoxins threatening food safety worldwide. Mycotoxins are studied predominantly from the perspectives of human and livestock health. Meanwhile, their roles are far less known in nature. However, to understand the factors behind mycotoxin production, the roles of the toxins of Aspergilli must be understood from a complex ecological perspective, taking mold-plant, mold-microbe, and mold-animal interactions into account. The Aspergilli may switch between saprophytic and pathogenic lifestyles, and the production of secondary metabolites, such as mycotoxins, may vary according to these fungal ways of life. Recent studies highlighted the complex ecological network of soil microbiotas determining the niches that Aspergilli can fill in. Interactions with the soil microbiota and soil macro-organisms determine the role of secondary metabolite production to a great extent. While, upon infection of plants, metabolic communication including fungal secondary metabolites like aflatoxins, gliotoxin, patulin, cyclopiazonic acid, and ochratoxin, influences the fate of both the invader and the host. In this review, the role of mycotoxin producing Aspergillus species and their interactions in the ecosystem are discussed. We intend to highlight the complexity of the roles of the main toxic secondary metabolites as well as their fate in natural environments and agriculture, a field that still has important knowledge gaps.

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“…New Bacillus sp. strains have been recently characterized, showing inhibition against mycotoxigenic fungi aflatoxins (Veras et al, 2016) or causing decolonization of methicillin resistant S. aureus (Bacillus strain TSH58, Chauhan et al, 2017).…”

Section: Future Trends For Probiotic Bacillus Sp In Managing Hazardomentioning

confidence: 99%

The promises and risks of probiotic Bacillus species

et al. 2018

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Supplementing the human microbiome with probiotic microorganisms is a proposed solution for civilization syndromes such as dysbiosis and gastrointestinal tract (GIT) disorders. Bimodal probiotic strains of the Bacillus genus constitute the microbiota of the human environment, and are typically found in soil, water, a number of non-dairy fermented foods, as well as in human and animal GIT. Probiotic Bacillus sp. are Gram positive rods, with the ability of sporulation to survive environmental stress and preparation conditions. In vitro models of the human stomach and human studies with probiotic Bacillus reveal the mechanisms of its life cycle and sporulation. The Bacillus sp. probiotic biofilm introduces biochemical effects such as antimicrobial and enzymatic activity, thus contributing to protection from GIT and other infections. Despite the beneficial activity of Bacillus strains belonging to the safety group 1, a number of strains can pose a substantial health risk, carrying genes for various toxins or antibiotic resistance. Commercially available Bacillus probiotic preparations include strains from the subtilis and other closely related phylogenetic clades. Those intended for oral administration in humans, often encapsulated with appropriate supporting materials, still tend to be mislabeled or poorly characterized. Bacillus sp. MALDI-TOF analysis, combined with sequencing of characteristic 16S rRNA or enzyme coding genes, may provide accurate identification. A promising future application of the probiotic Bacillus sp. might be the microflora biocontrol in the human body and the closest human environment. Environmental probiotic Bacillus species display the potential to support human microflora, however controversies regarding the safety of certain strains is a key factor in their still limited application.

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Inhibition of mycotoxin-producing fungi by Bacillus strains isolated from fish intestines

Cited by 47 publications

References 71 publications

Control of Aflatoxigenic Molds by Antagonistic Microorganisms: Inhibitory Behaviors, Bioactive Compounds, Related Mechanisms, and Influencing Factors

Control of Aflatoxigenic Molds by Antagonistic Microorganisms: Inhibitory Behaviors, Bioactive Compounds, Related Mechanisms, and Influencing Factors

The Aspergilli and Their Mycotoxins: Metabolic Interactions With Plants and the Soil Biota

The promises and risks of probiotic Bacillus species

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