Stimulating of Biodegradation of Oxamyl Pesticide by Low Dose Gamma Irradiated FungiAbd El-Moneim MR Afify1*, Mohamed A Abo-El-Seoud2, Ghada M Ibrahim1 and Bassam W Kassem2
- *Corresponding Author:
- Abd El-Moneim MR Afify
Department of Biochemistry
Faculty of Agriculture
Cairo University, Giza, Egypt
E-mail: [email protected]
Received date: August 23, 2013; Accepted date: September 28, 2013; Published date: September 30, 2013
Citation: Afify AEMMR, Abo-El-Seoud MA, Ibrahim GM, Kassem BW (2013) Stimulating of Biodegradation of Oxamyl Pesticide by Low Dose Gamma Irradiated Fungi. J Plant Pathol Microb 4:201. doi:10.4172/2157-7471.1000201
Copyright: © 2013 Afify AEMMR, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
This investigation has been conducted to study the possibility of stimulating Trichoderma spp with low dose gamma radiation for biodegradation of Oxamyl pesticides. Fungi strains capable for biodegradation of oxamyl are identified as Trichoderma spp., including T. harzianum, T. viride, Aspergillus niger, Fusarium oxysporum and Penicillium cyclopium. The results indicated that Trichoderma spp. used Oxamyl as source of carbon and nitrogen and possesses enzyme(s), which acts on amide and ester bond in Oxamyl structure. Degradation of oxamyl was 72.5% within 10 days of incubation by T. harzianum strain. It is very important to note that degradation of oxamyl 82.05% within 10 days of incubation by T. viride strain. This indicated that the isolates of Trichoderma spp. were potentially useful for oxamyl bioremediation. The biomass of Trichoderma spp strain were increased and reached its maximum at 250 Gy by 21.97 and 40.0 when using Trichoderma spp., as well as T. viride, respectively. As a general trends the gamma radiation over than 0.25 KGr reduce the growth of Trichoderma spp by 50.27 and 38.13, using Trichoderma spp. as well as T. viride, respectively.