Biocontrol potential of native yeast strains against <i>Aspergillus flavus</i> and aflatoxin production in pistachio

Moradi, Mohammad; Rohani, M.; Fani, Seyed Reza; Mosavian, Mohammad Taghi Hamed; Probst, Claudia; Khodaygan, Pejman

doi:10.1080/19440049.2020.1811901

Cited by 21 publications

(12 citation statements)

References 26 publications

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“…Moradi et al [ 91 ] evaluated the biocontrol efficacy of 13 yeast isolates from soil and pistachio nuts sampled in Iranian pistachio orchards. In dual-culture tests, the vegetative growth of A. flavus was reduced by 13–31%, while aflatoxin B1 production was diminished by 90.6–98.3%.…”

Section: Vocs-mediated Control Of Postharvest Mycotoxigenic Fungimentioning

confidence: 99%

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Perfume Guns: Potential of Yeast Volatile Organic Compounds in the Biological Control of Mycotoxin-Producing Fungi

Oufensou

Hassan

Balmas

et al. 2023

Toxins

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Pathogenic fungi in the genera Alternaria, Aspergillus, Botrytis, Fusarium, Geotrichum, Gloeosporium, Monilinia, Mucor, Penicillium, and Rhizopus are the most common cause of pre- and postharvest diseases of fruit, vegetable, root and grain commodities. Some species are also able to produce mycotoxins, secondary metabolites having toxic effects on human and non-human animals upon ingestion of contaminated food and feed. Synthetic fungicides still represent the most common tool to control these pathogens. However, long-term application of fungicides has led to unacceptable pollution and may favour the selection of fungicide-resistant mutants. Microbial biocontrol agents may reduce the incidence of toxigenic fungi through a wide array of mechanisms, including competition for the ecological niche, antibiosis, mycoparasitism, and the induction of resistance in the host plant tissues. In recent years, the emission of volatile organic compounds (VOCs) has been proposed as a key mechanism of biocontrol. Their bioactivity and the absence of residues make the use of microbial VOCs a sustainable and effective alternative to synthetic fungicides in the management of postharvest pathogens, particularly in airtight environments. In this review, we will focus on the possibility of applying yeast VOCs in the biocontrol of mycotoxigenic fungi affecting stored food and feed.

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Section: Vocs-mediated Control Of Postharvest Mycotoxigenic Fungimentioning

confidence: 99%

“…In dual-culture tests, the vegetative growth of A. flavus was reduced by 13–31%, while aflatoxin B1 production was diminished by 90.6–98.3%. The effective isolates were identified as I. orientalis and L. thermotolerans [ 91 ].…”

Section: Vocs-mediated Control Of Postharvest Mycotoxigenic Fungimentioning

confidence: 99%

Perfume Guns: Potential of Yeast Volatile Organic Compounds in the Biological Control of Mycotoxin-Producing Fungi

Oufensou

Hassan

Balmas

et al. 2023

Toxins

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“…Research into biological control of plant pathogens using fungi such as Trichoderma began as early as the 1930s (Weindling 1932). Since then, biocontrol strategies to inhibit aflatoxin producing fungi and/or degrade aflatoxins have included exposure to plant-derived antifungal compounds (Loi et al 2020), competing microbes such as the bacteria Bacillus and Streptomyces (Nesci, Bluma, and Etcheverry 2005;Palumbo, Baker, and Mahoney 2006;Shakeel et al 2018), or fungi such as Candida and Pichia yeasts (Hua, Baker, and Flores-Espiritu 1999;Jaibangyang, Nasanit, and Limtong 2020;Moradi et al 2020) and Trichoderma (Calistru, McLean, and Berjak 1997;Kifle, Yobo, and Laing 2016). These types of studies continue and have been the subject of previous reviews Kim 2016, 2017;Ren et al 2020), but many of these microbes have only exhibited success in the laboratory.…”

Section: An Overview Of 60 Years Of Aflatoxin-related Researchmentioning

confidence: 99%

Practical considerations will ensure the continued success of pre-harvest biocontrol using non-aflatoxigenic Aspergillus flavus strains

Moore

2021

Critical Reviews in Food Science and Nutrition

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There is an important reason for the accelerated use of non-aflatoxigenic Aspergillus flavus to mitigate pre-harvest aflatoxin contamination … it effectively addresses the imperative need for safer food and feed. Now that we have decades of proof of the effectiveness of A. flavus as biocontrol, it is time to improve several aspects of this strategy. If we are to continue relying heavily on this form of aflatoxin mitigation, there are considerations we must acknowledge, and actions we must take, to ensure that we are best wielding this strategy to our advantage. These include its: (1) potential to produce other mycotoxins, (2) persistence in the field in light of several ecological factors, (3) its reproductive and genetic stability, (4) the mechanism(s) employed that allow it to elicit control over aflatoxigenic strains and species of agricultural importance and (5) supplemental alternatives that increase its effectiveness. There is a need to be consistent, practical and thoughtful when it comes to implementing this method of mycotoxin mitigation since these fungi are living organisms that have been adapting, evolving and surviving on this planet for tens-of-millions of years. This document will serve as a critical review of the literature regarding pre-harvest A. flavus biocontrol and will discuss opportunities for improvements.

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“…Biological control is considered a promising strategy to overcome the drawbacks presented by the strategies mentioned above, especially, in the preharvest stage. It involves the use of microorganisms (bacteria, , fungi, and yeast) to prevent on-field crop contamination with aflatoxins. Several mechanisms are being looked into: antagonist organisms grow rapidly to compete for nutrients and space, which leads to suppression of the toxigenic fungi; another mechanism involves inhibiting fungal growth and reducing fungal infection and colonization capacity, and the third mechanism is based on inhibiting fungal aflatoxin biosynthesis .…”

Section: Introductionmentioning

confidence: 99%

“…It involves the use of microorganisms (bacteria, , fungi, and yeast) to prevent on-field crop contamination with aflatoxins. Several mechanisms are being looked into: antagonist organisms grow rapidly to compete for nutrients and space, which leads to suppression of the toxigenic fungi; another mechanism involves inhibiting fungal growth and reducing fungal infection and colonization capacity, and the third mechanism is based on inhibiting fungal aflatoxin biosynthesis . The atoxigenic Aspergillus flavus has been the most successful so far as there are already two commercially available biocontrol strains, Aflasafe in West Africa and Aflaguard in the USA …”

Section: Introductionmentioning

confidence: 99%

Aspergillus flavus’s Response to Antagonism Bacterial Stress Sheds Light on a Regulation and Metabolic Trade-Off Mechanism for Adversity Survival

Xie

Jallow

Yue

et al. 2021

J. Agric. Food Chem.

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Biocontrol to combat the menace of Aspergillus flavus has gained considerable attention. However, the molecular mechanisms of A. flavus ’s response to antagonism biotic stress are poorly deciphered. Here, we discovered that A. flavus switches an adaptive metabolic reprogramming to ensure its adversity survival by multiomics analyses (including four omics platform). Antifungal “weapons” lipopeptides and antibacterial metabolites of imizoquin were identified. The central metabolism fluxes were significantly depleted but the expressions of most corresponding genes were considerably increased in A. flavus. Secondary metabolism that does not contribute to stress was markedly suppressed. In contrast, A. flavus antibacterial “weapon arsenal” was activated to occupy an ecological niche. Our results revealed that interlinked mitochondrial central metabolism and secondary metabolism are central to A. flavus antagonism biotic stress response. This discovery contributes to the targeted design of biocontrol agents and smart regularization of rhizosphere microbiome homeostasis to realize long-term fungi pathogen control and mitigation mycotoxin contamination.

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Biocontrol potential of native yeast strains against Aspergillus flavus and aflatoxin production in pistachio

Cited by 21 publications

References 26 publications

Perfume Guns: Potential of Yeast Volatile Organic Compounds in the Biological Control of Mycotoxin-Producing Fungi

Perfume Guns: Potential of Yeast Volatile Organic Compounds in the Biological Control of Mycotoxin-Producing Fungi

Practical considerations will ensure the continued success of pre-harvest biocontrol using non-aflatoxigenic Aspergillus flavus strains

Aspergillus flavus’s Response to Antagonism Bacterial Stress Sheds Light on a Regulation and Metabolic Trade-Off Mechanism for Adversity Survival

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