JO Aribisala*, MK Oladunmoye, OI Afolami and T Aina
Department of Microbiology, Federal University of Technology, Akure, Nigeria
*Corresponding Author: JO Aribisala, Department of Microbiology, Federal University of Technology, Akure, Nigeria.
Received: January 02, 2018; Published: February 03, 2018
Citation: Afolami OI., et al. “Characterization, Antibiotic Sensitivity Patterns, Plasmid Profile Analysis and Antagonistic Potentials of Microorganisms from Termitaria on Mango Trees in Ibule-Soro, Akure, Nigeria””. Acta Scientific Microbiology 1.3 (2018).
This research identified micro-organisms associated with termitarium on cocoa trees and cocoa tree bark cultivated in Ibule-soro, Akure, Ondo State Nigeria. Bacteria such as Kocuria spp, Micrococcus spp, Bacillus cereus and Clostridium botulinum were identified, while fungi isolates such as Histoplasma capsulatum, Penicillium notatum, Microsporum audouinii, Aspergillus flavus, Cladosporium cladosporioides were also identified from the termitarium sampled from the farm settlements in Ibule-soro in Ondo State Nigeria. The antagonistic properties of the isolated bacteria and fungi were evaluated to determine the growth inhibitory effects of the isolated organisms against some selected pathogens. The selected pathogens were Escherichia coli and Shigella spp for the gram negative and Staphylococcus aureus for the gram positive. Antimicrobial sensitivity patterns of isolated bacteria from termitarium and cocoa tree bark were also evaluated using Kirby-Bauer test. The multiple drug resistant isolates (MDRIs) which include Kocuria spp and Micro- coccus spp were screened out of the bacteria isolates obtained. Plasmid profile analysis of screened multiple drug resistant isolates revealed possession of plasmids with Kocuria spp and Micrococcus spp having a plasmid weight of 1000 bp and 980 bp respectively. Plasmid curing of the selected multiple drug resistance isolates was carried out and the cured bacterial isolates were subjected again to broad spectrum antibiotic test to determine the basis of the antibiotic resistance. The initially observed antibiotic resistance for MDRIs was extra chromosomal since screened isolates were susceptible to broad spectrum antibiotics after curing. The Antagonistic test shows that only Penicillium notatum had mild antagonistic effect on the selected test pathogens while the remaining fungi and bacterial isolate had no significant antagonistic properties.
Keywords: Antagonistic; Plasmid Profiling; Termitarium; Resistance; Cocoa Trees
Copyright: © 2018 JO Aribisala., 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.