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Effect of Patulin from Penicillium vulpinum on the Activity of Glutathione-S-Transferase and Selected Antioxidative Enzymes in Maize

Author

Listed:
  • Ahmed A. Ismaiel

    (Department of Botany and Microbiology, Faculty of Science, Zagazig University, Zagazig 44519, Egypt)

  • Jutta Papenbrock

    (Institut für Botanik, Leibniz Universität Hannover, Herrenhäuser Straße 2, 30419 Hannover, Germany)

Abstract

The mycotoxin patulin (PAT) was purified from Penicillium vulpinum CM1 culture that has been isolated from a soil cultivated with maize. The effect of PAT and of a fungal culture filtrate on the activities of glutathione-S-transferase (GST) and some antioxidant enzymes viz. ascorbate peroxidase (APX), glutathione reductase (GR), dehydroascorbate reductase (DHAR) and monodehydroascorbate reductase (MDHAR) was investigated in roots and shoots of 8-day-old maize seedlings. PAT and culture filtrate caused significant reduction effects in a dose-related manner on the total GST activity. Upon application of the high PAT concentration (25 μg·mL −1 ) and of the concentrated fungal filtrate (100%, v/v ), the reduction in GST activity of roots was 73.8–76.0% and of shoots was 60–61.7%. Conversely, significant increases in the activities of antioxidant enzymes were induced. Application of 25 μg·PAT·mL −1 increased APX, GR, DHAR, and MDHAR activity of root by 2.40-, 2.00-, 1.24-, and 2.16-fold, respectively. In shoots, the enzymatic activity was increased by 1.57-, 1.45-, 1.45-, and 1.61-fold, respectively. Similar induction values of the enzymatic activity were obtained upon application of the concentrated fungal filtrate. This is the first report describing the response of GST and antioxidant enzyme activities of plant cells to PAT toxicity.

Suggested Citation

  • Ahmed A. Ismaiel & Jutta Papenbrock, 2017. "Effect of Patulin from Penicillium vulpinum on the Activity of Glutathione-S-Transferase and Selected Antioxidative Enzymes in Maize," IJERPH, MDPI, vol. 14(7), pages 1-14, July.
    • Handle: RePEc:gam:jijerp:v:14:y:2017:i:7:p:825-:d:105552
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    References listed on IDEAS

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    1. Ahmed A. Ismaiel & Jutta Papenbrock, 2015. "Mycotoxins: Producing Fungi and Mechanisms of Phytotoxicity," Agriculture, MDPI, vol. 5(3), pages 1-46, July.
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    Cited by:

    1. Ahmed A. Ismaiel & Jutta Papenbrock, 2023. "Thioredoxin Is a New Target for the Phytotoxicity of Small Lactone Mycotoxins, Patulin and Penicillic Acid on Maize Seedlings," Agriculture, MDPI, vol. 13(5), pages 1-16, April.

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