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Updated: May 17, 2026
Metagenomic Analysis of Silage
Published on: January 13, 2017
Genome-wide characterization of LPMOs and CAZymes in camel rumen-derived Paenibacillus barengoltzii highlights strong
Shaswat Parmar1, Shivangi Patel2, Srinivas Duggirala3
1Department of Animal Genetics and Breeding, College of Veterinary Science and Animal Husbandry, Kamdhenu University, Anand, 388001, Gujarat, India.
Background:
Camels exhibit remarkable adaptability to harsh environments, in part due to their unique ruminal microbiota. Paenibacillus barengoltzii, isolated from camel rumen, plays a crucial role in rumen fermentation and plant biomass degradation. The present study aimed to identify fermentative genes and assess their lignocellulolytic potential.
Results:
Whole-genome sequencing was performed on the Illumina MiSeq platform to enable comprehensive comparative genomic analysis of carbohydrate-active enzymes (CAZymes) across 11 Paenibacillus species. It was observed that species-specific CAZymes repertoires, with P. barengoltzii harboring genes for plant biomass degradation, including GH2, GH13, GH20, GH27, GH28, GH32, GH62, GH65, GH67, GH68, GH88, GH105, AA4, AA10, and PL8, indicating its polysaccharide catabolic potential. Genome-wide analysis identified one Lytic Polysaccharide Monooxygenase (LPMO) gene involved in oxidative polysaccharide cleavage. LPMOs co-localized with chitin-active glycoside hydrolase GH18, along with its association with cellulose enzymes. Protein-protein interaction and gene networking studies revealed LPMO co-occurrence and interaction with chitinase and cellulose degradation. Structural predictions provided LPMO substrate-binding sites, emphasizing their functional significance in biomass degradation. Functional annotation identified 121 key domains implicated in plant biomass degradation.
Conclusion:
The present study elucidates the genomic organization of LPMO genes in P. barengoltzii, highlighting its potential for biomass hydrolysis. The genomic insights underscore the need for further experimental validation of P. barengoltzii to enhance ruminal fermentation and plant biomass decomposition.
