Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8846300 | Acta Ecologica Sinica | 2018 | 6 Pages |
Abstract
The aim of this study is to investigate the antifungal activity of mycelia of Pleurotus ostreatus (white oyster mushroom) and licorice (Glycyrrhiza glabra) root extract against three undesirable fungi. They are Trichoderma spp., Trichoderma harzianum I and Trichoderma harzianum II which was tested on PSA (potato sucrose agar) medium enriched with licorice (Glycyrrhiza glabra) root extract (PSA-G media) using three concentrations (0.05, 0.10 and 0.20Â g/L) in alone and dual cultures. Trichoderma spp. showed less mycelial growth of 8.75, 9.17 and 9.50Â mm/day on PSA-G0.05, PSA-G0.1 and PSA-G0.2 respectively compared with 10.25Â mm/day on fresh PSA (control) in dual culture. The best mycelial growth inhibition was recorded on PSA-G0.2 (14.97%) by T. harzianum II in alone culture opposite 63.72% in dual ones. The lower mycelial growth rate of T. harzianum I was 17.75Â mm/day on PSA-G0.1 (0.10Â g/L). In dual culture, overgrowth time of T. harzianum I had 5Â days compared as approx. 6Â days in alone culture. Generally, when the concentration of licorice extract increased, the mycelial growth rate of the undesirable fungi decreased. Also, all PSA-G media, especially PSA-G0.2, indicated low growth averages compared with the control (fresh PSA) against the pathogen while this concentration encourages growth of oyster mushroom. Also, this concentration reduced the density of sporulation of green molds; therefore, this concentration can be applied to reduce influence this pathogen in cultivation farm.
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Authors
Behar Moqdad Al-Ani, Mustafa Nadhim Owaid, Sajid Salahuddin Salem Al-Saeedi,