Mycotoxigenic potentials of the genera: Aspergillus, Fusarium and Penicillium isolated from houseflies (Musca domestica L.)
| Autor: | Michael F. Dutton, J.Z. Phoku, Natasha Potgieter, Tobias G. Barnard |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
0301 basic medicine
Ochratoxin A Fusarium Aflatoxin Veterinary (miscellaneous) 030106 microbiology Colony Count Microbial Real-Time Polymerase Chain Reaction Microbiology South Africa 03 medical and health sciences chemistry.chemical_compound Houseflies Fumonisin Animals Food science Mycotoxin Zearalenone Chromatography High Pressure Liquid Aspergillus biology Penicillium Mycotoxins Spores Fungal biology.organism_classification 030104 developmental biology Infectious Diseases chemistry Insect Science Parasitology |
| Zdroj: | Acta Tropica. 168:29-36 |
| ISSN: | 0001-706X |
| DOI: | 10.1016/j.actatropica.2016.12.037 |
| Popis: | A study on the potential of houseflies ( Musca domestica L.) to spread fungal spores in Gauteng Province, South Africa proved that houseflies are vectors for fungal spores. Therefore, there is a need to determine the toxigenic potentials and to identify the mycotoxins produced by fungal isolates derived from this study. In total 377 potentially toxigenic isolates of Aspergillus (186), Fusarium (85) and Penicillium (106) species (spp.) were isolated. These isolates were further tested for their ability to produce aflatoxins (AFs) [aflatoxin B 1 , B 2 , G 1 and G 2 ], deoxynivalenol (DON), fumonisin B 1 (FB 1 ) ochratoxin A (OTA), and zearalenone (ZEA) by high-performance liquid chromatography (HPLC) respectively. Strains of A . flavus and A . parasiticus belonging to the genera of Aspergillus were found to be the main producers of AFB 1 , AFB 2 , AFG 1 , and AFG 2 , while A . carbonarius , A . niger and A . ochraceus produced OTA. Fumonisin B 1 was produced by F . verticillioides and F . proliferatum with concentrations ranging from 20 to 1834 μg/kg and 79 to 262 μg/kg respectively. Deoxynivalenol produced mainly by F . culmorum (2–6 μg/kg), F . graminearum (1–4 μg/kg), F . poae (1–3 μg/kg), and F . sporotrichioides (2–3 μg/kg) species was the least detected toxin in this study. The high mycotoxins levels produced in isolates from houseflies in this study are regarded as unsafe, especially when international legislated tolerance levels for mycotoxins are considered. Thus, possible human exposure to mycotoxins may pose concerns with respect to human health and demands constant and consistent investigation. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect