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The role of fruits as reservoirs for resistant and virulent strains of opportunistic yeasts

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Abstract

Strains of the Candida parapsilosis and Meyerozyma guilliermondii species complexes isolated from the internal tissues of 26 fruit species from 21 countries were evaluated for their susceptibility to conventional antifungal compounds (fluconazole, voriconazole, amphotericin B) and hydrolytic activity. A total of 144 strains were studied. Resistance to at least one of the antifungal compounds tested was found in 26.4% of the endophytic strains examined. Most of the strains were insensitive to fluconazole. Multiresistance was detected only in two strains of C. parapsilosis sensu stricto from tropical apples. Phospholipase production and proteolytic and hemolytic activities were significantly higher in endophytes from tropical fruits. Resistant and virulent strains of opportunistic yeasts can thus spread worldwide via purchased fruit, which can harm people with a weakened immune status and children whose immune systems are not yet fully developed.

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The datasets used and/or analyzed during the current study are available from the corresponding author upon reasonable request.

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Acknowledgements

The study was carried out on the scientific equipment of the Collective Usage Center “I.I. Mechnikov NIIVS”, Moscow, Russia, with the financial support of the project by the Russian Federation represented by the Ministry of Science of Russia, Agreement No. 075-15-2021-676 dated 28.07.2021.

Funding

This research was funded by the Russian Ministry of Science and Higher Education, Grant Agreement No. 075-15-2021-1396.

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Contributions

AG and AK wrote the main manuscript text, prepared figures and tables and ER made formal analysis. All authors reviewed the manuscript.

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Correspondence to Anna Glushakova.

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Conflict of interest

The authors declare that they have no known competing financial interests or personal relationships that could have influenced the work reported in this study.

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The study was approved by the Ethics Committee of Lomonosov Moscow State University.

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Glushakova, A., Kachalkin, A. & Rodionova, E. The role of fruits as reservoirs for resistant and virulent strains of opportunistic yeasts. World J Microbiol Biotechnol 39, 313 (2023). https://doi.org/10.1007/s11274-023-03758-2

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  • DOI: https://doi.org/10.1007/s11274-023-03758-2

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