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Characterization of cellulose degrading bacteria from the larval gut of the white grub beetle Lepidiota mansueta (Coleoptera: Scarabaeidae)
Author(s) -
Handique Gautam,
Phukan Amrita,
Bhattacharyya Badal,
Baruah Abu Adil Lutful Haque,
Rahman Syed Wasifur,
Baruah Rajen
Publication year - 2017
Publication title -
archives of insect biochemistry and physiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.576
H-Index - 66
eISSN - 1520-6327
pISSN - 0739-4462
DOI - 10.1002/arch.21370
Subject(s) - scarabaeidae , biology , cellulose , carboxymethyl cellulose , larva , bacteria , citrobacter , microorganism , enterobacteriaceae , microbiology and biotechnology , antibiosis , botany , food science , escherichia coli , biochemistry , chemistry , sodium , genetics , organic chemistry , gene
The goal of this study is to identify and characterize the cellulose degrading microorganisms in the larval gut of the white grub beetle, Lepidiota mansueta . Thirty bacterial strains were isolated and tested for cellulolytic activity using soluble carboxymethyl cellulose (CMC) degrading assays. Of these strains, five (FGB1, FB2, MB1, MB2, and HB1) degrade cellulose. Cellulolytic activity was determined based on formation of clear zone and cellulolytic index on CMC plate media. The highest cellulolytic index (2.14) was found in FGB1. Partial 16S rDNA sequencing, morphological, and biochemical tests were used to identify and characterize the five isolates, all Citrobacter sp. (Enterobacteriaceae). This study identifies new cellulose degrading microorganisms from the larval gut of L . mansueta . The significance of identifying these strains lies in possible application in cellulose degradation.