Genomic and secretomic insight into lignocellulolytic system of an endophytic bacterium Pantoea ananatis Sd-1

Biotechnology for Biofuels
Jiangshan MaYonghua Zhu

Abstract

Exploring microorganisms especially bacteria associated with the degradation of lignocellulosic biomass shows great potentials in biofuels production. The rice endophytic bacterium Pantoea ananatis Sd-1 with strong lignocellulose degradation capacity has been reported in our previous study. However, a comprehensive analysis of its corresponding degradative system has not yet been conducted. The aim of this work is to identify and characterize the lignocellulolytic enzymes of the bacterium to understand its mechanism of lignocellulose degradation and facilitate its application in sustainable energy production. The genomic analysis revealed that there are 154 genes encoding putative carbohydrate-active enzymes (CAZy) in P. ananatis Sd-1. This number is higher than that of compared cellulolytic and ligninolytic bacteria as well as other eight P. ananatis strains. The CAZy in P. ananatis Sd-1 contains a complete repertoire of enzymes required for cellulose and hemicellulose degradation. In addition, P. ananatis Sd-1 also possesses plenty of genes encoding potential ligninolytic relevant enzymes, such as multicopper oxidase, catalase/hydroperoxidase, glutathione S-transferase, and quinone oxidoreductase. Quantitative real-time PCR a...Continue Reading

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Datasets Mentioned

BETA
AZTE00000000
AP012032
CP001875
HE617160
CP003085
CAC12802
AFA42947
AAC72747
AAF31169
AAA34321

Methods Mentioned

BETA
PCR
electrophoresis
Protein Assay

Software Mentioned

Prodigal
Beacon Designer
dbCAN
SignalP
CAZyme
Xcalibur
TrEMBL
Proteome Discoverer
MEGA

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