A study of selected fungal resistance against Glufosinate

Glufosinate is a contact herbicide which has been widely used in the plantation in order to help prevent plant diseases that caused by pathogenic fungi. However, it becomes a problem when there are some fungi that are naturally resistant towards glufosinate. If those plant pathogenic fungi was not eliminated by usage of herbicide, it may pose threat to worldwide food security. Hence, in this study, fungi that resistant towards glufosinate had been identified. Besides, the maximum level of glufosinate that can be resisted by each type of selected fungi also had been determined in this study. All fungi samples underwent molecular and morphological identification to confirm their identity. Then, the resistance of each fungi was tested by treating the fungi samples with different concentration of glufosinate(O, 4 000, 8 000, 16 000 and 20 000 ppm). Results from this study had shown fungi that were susceptible towards glufosinate were Aspergillus versicolor, Colletotrichum gloeosporioides, Marasmius cladophyllus, Penicillium pinophilum and Neurospora crassa. The tolerant fungi were Aspergillus flavus, Cunninghamella bainieri, Penicillium citrinum and Aspergillus acuelatus. Fungi that was resistant towards glufosinate was Colletotrichum truncantum