<i>Ammoides pusilla</i> Essential Oil: A Potent Inhibitor of the Growth of <i>Fusarium avenaceum</i> and Its Enniatin Production

Enniatins are mycotoxins produced by <i>Fusarium</i> species contaminating cereals and various agricultural commodities. The co-occurrence of these mycotoxins in large quantities with other mycotoxins such as trichothecenes and the possible synergies in toxicity could lead to serious foo...

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Main Authors: Yasmine Chakroun, Souheib Oueslati, Vessela Atanasova, Florence Richard-Forget, Manef Abderrabba, Jean-Michel Savoie
Format: Article
Language:English
Published: MDPI AG 2021-11-01
Series:Molecules
Subjects:
Online Access:https://www.mdpi.com/1420-3049/26/22/6906
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author Yasmine Chakroun
Souheib Oueslati
Vessela Atanasova
Florence Richard-Forget
Manef Abderrabba
Jean-Michel Savoie
author_facet Yasmine Chakroun
Souheib Oueslati
Vessela Atanasova
Florence Richard-Forget
Manef Abderrabba
Jean-Michel Savoie
author_sort Yasmine Chakroun
collection DOAJ
description Enniatins are mycotoxins produced by <i>Fusarium</i> species contaminating cereals and various agricultural commodities. The co-occurrence of these mycotoxins in large quantities with other mycotoxins such as trichothecenes and the possible synergies in toxicity could lead to serious food safety problems. Using the agar dilution method, <i>Ammoides pusilla</i> was selected among eight Tunisian plants for the antifungal potential of its essential oil (EO) on <i>Fusarium avenaceum</i> mycelial growth and its production of enniatins. Two EO batches were produced and analyzed by GC/MS-MS. Their activities were measured using both contact assays and fumigant tests (estimated IC50 were 0.1 µL·mL<sup>−1</sup> and 7.6 µL·L<sup>−1</sup>, respectively). The <i>A. pusilla</i> EOs and their volatiles inhibited the germination of spores and the mycelial growth, showing a fungistatic but not fungicidal activity. The accumulation of enniatins was also significantly reduced (estimated IC50 were 0.05 µL·mL<sup>−1</sup> for the contact assays and 4.2 µL·L<sup>−1</sup> for the fumigation assays). The most active batch of EO was richer in thymol, the main volatile compound found. Thymol used as fumigant showed a potent fungistatic activity but not a significant antimycotoxigenic activity. Overall, our data demonstrated the bioactivity of <i>A. pusilla</i> EO and its high potential to control <i>F. avenaceum</i> and its enniatins production in agricultural commodities.
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spelling doaj.art-b4c1aced4b2849f48903c3f58f84c3e42023-11-23T00:35:33ZengMDPI AGMolecules1420-30492021-11-012622690610.3390/molecules26226906<i>Ammoides pusilla</i> Essential Oil: A Potent Inhibitor of the Growth of <i>Fusarium avenaceum</i> and Its Enniatin ProductionYasmine Chakroun0Souheib Oueslati1Vessela Atanasova2Florence Richard-Forget3Manef Abderrabba4Jean-Michel Savoie5UR1264 Mycology and Food Safety Research Unit (MycSA), INRAE, F-33882 Villenave d’Ornon, FranceLaboratory Molecules, Material and Applications (LMMA), Preparatory Institute of Scientific and Technical Studies of Tunis (IPEST), University of Carthage, Sidi Bou Said road, La Marsa B.P. 51 2070, TunisiaUR1264 Mycology and Food Safety Research Unit (MycSA), INRAE, F-33882 Villenave d’Ornon, FranceUR1264 Mycology and Food Safety Research Unit (MycSA), INRAE, F-33882 Villenave d’Ornon, FranceLaboratory Molecules, Material and Applications (LMMA), Preparatory Institute of Scientific and Technical Studies of Tunis (IPEST), University of Carthage, Sidi Bou Said road, La Marsa B.P. 51 2070, TunisiaUR1264 Mycology and Food Safety Research Unit (MycSA), INRAE, F-33882 Villenave d’Ornon, FranceEnniatins are mycotoxins produced by <i>Fusarium</i> species contaminating cereals and various agricultural commodities. The co-occurrence of these mycotoxins in large quantities with other mycotoxins such as trichothecenes and the possible synergies in toxicity could lead to serious food safety problems. Using the agar dilution method, <i>Ammoides pusilla</i> was selected among eight Tunisian plants for the antifungal potential of its essential oil (EO) on <i>Fusarium avenaceum</i> mycelial growth and its production of enniatins. Two EO batches were produced and analyzed by GC/MS-MS. Their activities were measured using both contact assays and fumigant tests (estimated IC50 were 0.1 µL·mL<sup>−1</sup> and 7.6 µL·L<sup>−1</sup>, respectively). The <i>A. pusilla</i> EOs and their volatiles inhibited the germination of spores and the mycelial growth, showing a fungistatic but not fungicidal activity. The accumulation of enniatins was also significantly reduced (estimated IC50 were 0.05 µL·mL<sup>−1</sup> for the contact assays and 4.2 µL·L<sup>−1</sup> for the fumigation assays). The most active batch of EO was richer in thymol, the main volatile compound found. Thymol used as fumigant showed a potent fungistatic activity but not a significant antimycotoxigenic activity. Overall, our data demonstrated the bioactivity of <i>A. pusilla</i> EO and its high potential to control <i>F. avenaceum</i> and its enniatins production in agricultural commodities.https://www.mdpi.com/1420-3049/26/22/6906<i>Ammoides pusilla</i><i>Fusarium avenaceum</i>mycotoxinsfungistatic activityvolatilesGC/MS-MS
spellingShingle Yasmine Chakroun
Souheib Oueslati
Vessela Atanasova
Florence Richard-Forget
Manef Abderrabba
Jean-Michel Savoie
<i>Ammoides pusilla</i> Essential Oil: A Potent Inhibitor of the Growth of <i>Fusarium avenaceum</i> and Its Enniatin Production
Molecules
<i>Ammoides pusilla</i>
<i>Fusarium avenaceum</i>
mycotoxins
fungistatic activity
volatiles
GC/MS-MS
title <i>Ammoides pusilla</i> Essential Oil: A Potent Inhibitor of the Growth of <i>Fusarium avenaceum</i> and Its Enniatin Production
title_full <i>Ammoides pusilla</i> Essential Oil: A Potent Inhibitor of the Growth of <i>Fusarium avenaceum</i> and Its Enniatin Production
title_fullStr <i>Ammoides pusilla</i> Essential Oil: A Potent Inhibitor of the Growth of <i>Fusarium avenaceum</i> and Its Enniatin Production
title_full_unstemmed <i>Ammoides pusilla</i> Essential Oil: A Potent Inhibitor of the Growth of <i>Fusarium avenaceum</i> and Its Enniatin Production
title_short <i>Ammoides pusilla</i> Essential Oil: A Potent Inhibitor of the Growth of <i>Fusarium avenaceum</i> and Its Enniatin Production
title_sort i ammoides pusilla i essential oil a potent inhibitor of the growth of i fusarium avenaceum i and its enniatin production
topic <i>Ammoides pusilla</i>
<i>Fusarium avenaceum</i>
mycotoxins
fungistatic activity
volatiles
GC/MS-MS
url https://www.mdpi.com/1420-3049/26/22/6906
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