Biofilm Formation and Bacterial Aggregation Response of Planomicrobium chinense and Alkaligenes faecalis Associated with Periplaneta americana Found in Household Sewerage
Biofilm Formation and Bacterial Aggregation Response of Planomicrobium chinense and Alkaligenes faecalis Associated with Periplaneta americana Found in Household Sewerage
Uzma Rafi*, Asmat, Muqaddes Niaz, Syeda Shazia Bokhari and Aisha Waheed Qurashi*
ABSTRACT
Many bacterial species are harbored by cockroaches on the external and internal surfaces. These harbored species have great public health concern. There is a variable tendency of these microbes to adhere to various abiotic and biotic surfaces showing chances of infection. Present study aims to check biofilm formation and auto aggregation potential of the bacteria associated with cockroaches. For this purpose, cockroaches were captured from house sewerage and two bacterial strains CXA1 (Planomicrobium chinense) and IM2 (Alkaligenes faecalis) were isolated from external surface and rectum portion of cockroach, respectively. Bacterial autoaggregation started increasing after 1 h of culture incubation and reached maximum after 4 h. Isolate CXA1 showed maximum (136 %) auto aggregation as compared to isolate IM2 (37 %) after 4 h. However, biofilm formation in the isolate IM2 was higher as compared to isolate CXA1 at non shaking conditions. The study showed microbes with a potential to form biofilm are carried by insects and therefore there should be proper hygienic conditions and control efforts for the growth of these vectors.
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December 2019
Vol. 51, Iss. 6, Pages 1999-2399
