The toxigenic potential of phytopathogenic fungi isolated from pineapple Ananas comosus (L.) Merr. var MD-2 associated with postharvest rot disease

MD-2 pineapple fruits are susceptible to phytopathogenic fungi producing mycotoxins, which can cause up to 40% of postharvest losses. This study aimed to isolate and identify fungi associated with postharvest diseases on pineapple fruits, and mycotoxins produced. Thirty-seven fungal strains were iso...

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Published inArchiv für Phytopathologie und Pflanzenschutz Vol. 57; no. 10; pp. 722 - 735
Main Authors Casas-Junco, Paloma Patricia, Balois-Morales, Rosendo, Ochoa-Jiménez, Verónica Alhelí, Berumen-Varela, Guillermo, Bautista-Rosales, Pedro Ulises
Format Journal Article
LanguageEnglish
Published Abingdon Taylor & Francis 14.06.2024
Taylor & Francis Ltd
Subjects
Aflatoxins
Aspergillus
Diseases of pineapple
Fruit rot
Fruits
Fungi
mycotoxigenic fungi
Mycotoxins
Ochratoxin A
Phytopathogenic fungi
Pineapples
Post-harvest decay
total aflatoxins
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Summary:MD-2 pineapple fruits are susceptible to phytopathogenic fungi producing mycotoxins, which can cause up to 40% of postharvest losses. This study aimed to isolate and identify fungi associated with postharvest diseases on pineapple fruits, and mycotoxins produced. Thirty-seven fungal strains were isolated from the pineapple fruit at the full maturation stage. About 51.37% of the fungal strains identified were belonging to Aspergillus. Those fungi that caused diseases in pineapple fruits were Aspergillus sclerotioniger, A. tubingensis, Penicillium citrinum, Fusarium equiseti, Trichoderma asperelliodes and T. asperellum. Aspergillus niger produced the highest ochratoxin A (OTA), scoring 85.51 µg/kg. On the other hand, P. citrinum scored 94.06 µg/kg, the highest quantity of total aflatoxins. This is the first report demonstrating mycotoxigenic fungi's potential to cause infections in postharvest pineapple fruits in Mexico.
ISSN:0323-5408
1477-2906
DOI:10.1080/03235408.2024.2395065