Persistence of the antifungal capacity of a fraction of Jacquinia macrocarpa plant against Fusarium verticillioides after continuous exposure

• Published in: Indian journal of microbiology Vol. 60; no. 4; pp. 458 - 467
• Main Authors: Muñoz-Ochoa, Iliana Jacqueline, Plascencia-Jatomea, Maribel, Cinco-Moroyoqui, Francisco Javier, Valenzuela-Cota, Daniel Fernando, Cortez-Rocha, Mario Onofre, Corella-Madueño, María Alba Guadalupe, Rosas-Burgos, Ema Carina
• Format: Journal Article
• Language: English
• Published: New Delhi Springer India 01.12.2020; Springer Nature B.V
• Subjects: Antifungal activity; Biomedical and Life Sciences; Exposure; Fungi; Fungicides; Fusarium; Fusarium verticillioides; Germination; Jacquinia; Life Sciences; Medical Microbiology; Microbiology; Original; Original Research Article; Plant extracts; Spore germination; Fungal maize control; Natural antifungal; Phytopathogenic fungus; Fungal resistance
• ISSN: 0046-8991; 0973-7715
• DOI: 10.1007/s12088-020-00887-2

This study aimed to determine the ability of Fusarium verticillioides in developing mechanisms to counteract the antifungal effect of a fraction from Jacquinia macrocarpa plant extract (JmAF), as well as the morphological and physiological changes that occur during its exposure. The fungus was exposed to JmAF during consecutive periods. A culture sample was taken weekly to determine radial growth, spore germination and size, and fungal β-1,3-glucanase activity. The results showed that, in the beginning, the radial growth decreased by 85.8%, and spore germination was delayed. As the exposure continued, the fungus showed a recovery, to some extent, in its original characteristics. However, the radial growth of the fungus continued to be inhibited (42.9%) throughout the experiment (7 weeks). The β-1,3-glucanase activity also was inhibited by 36.4% during the first week of exposure to JmAF. However, the activity was recovered after 7 weeks of exposure.