In-vitro interaction of fungi isolated from onion field
Date
2019
Authors
Angelie Krissha F. Luzano
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Abstract
Fungi present in onion fields may exhibit antagonistic interactions which can influence the growth of other microorganisms and suppression of fungal disease on plants. Thus, to identify new species of fungi for biological control, the interactions among different species of fungi isolated from onion field were evaluated. Three species of fungi isolated from onion field namely: Aspergillus niger, Penicillium citrinum and S. brevicaulis were used in this study. The result of the study showed a fungistatic antagonism between A. niger when paired with P. citrinum and S. brevicaulis, in which A. niger was the aggressor and both P. citrinum and S. brevicaulis whereas as noticeable zone of inhibition was formed near the interacting fungi thus preventing the interaction of P. citrinum and S. brevicaulis. The results of the study showed that the ethanol and crude extract of three fungal isolates A. niger, P. citrinum and S. brevicaulis has a promising antifungal activity and can be used as biocontrol agent.