author(s)
ARahul Kumar, Amit Chattopadhyay, Santanu Maitra, Satarupa Pauland, Pranab Kr. Banerjee*

abstract
Mosqutoes, in general medically important vectors of many diseases like Malaria, Dangue and Filariasis, which are a great challenge for public health in many countries. All animals and plants establish symbiotic relationship with microbes. Mosquitoes can be considered as an holobiont units in which the host (mosquito) and its microbiota are involved in complex reciprocal multipartite interaction such as host reproduction and survival,protection against natural enemies. This naturally acquired microbial flora can modulate the mosquitoes vectorial capacity by inhibiting the development of pathogen.. But enough care has not been under taken regarding the biochemical characterization of Culex mosquitoes (Culex quinquifasciatus) in West Bengal. Therefore a preliminary investigations have been undertaken for the determination of biochemical characterization of such as gram staining , pattern of growth, detection of economically important enzyme as well as antibiotic susceptibility assay of midgut bacterial isolates of Culex (Culex quinquifaciatus) in some urban, sub-urban and rural asreas of West Bengal.