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Updated: Aug 9, 2026
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Isolation, Propagation, and Identification of Bacterial Species with Hydrocarbon Metabolizing Properties from Aquatic Habitats
Published on: December 7, 2021
Deciphering Complex Carbohydrate Degrading Potential of Local Hot Spring Isolate Brevibacillus agri MX26 from Tuwa,
Krishna Bharwad1, Satyamitra Shekh1, Amrutlal Patel1
1Gujarat Biotechnology Research Centre, Gandhinagar, 382011 India.
Indian Journal of Microbiology
|August 8, 2026
Summary
A thermophilic bacterium, Brevibacillus agri MX26, isolated from hot springs, exhibits broad carbohydrate-degrading capabilities. This extremophile produces thermostable enzymes with potential industrial applications in animal feed and biomass breakdown.
Area of Science:
- Microbiology and Biotechnology
- Extremophile research
- Enzyme technology
Background:
- Hot springs harbor diverse microorganisms with unique metabolic potentials.
- Thermophilic bacteria are sources of robust enzymes for industrial applications.
- Brevibacillus agri is known for some carbohydrate-degrading enzymes.
Purpose of the Study:
- To isolate and characterize a thermophilic bacterium from a hot spring environment.
- To investigate the carbohydrate-degrading capabilities and enzyme properties of the isolate.
- To explore the genomic basis for its metabolic versatility and industrial potential.
Main Methods:
- Isolation and cultivation of thermophilic bacteria from Tuwa hot spring.
- Biochemical assays for enzyme activity (cellulose, starch, pectin, mannan, agar, xylan, alginate).
- Enzyme partial purification and characterization (temperature and pH stability).
- Whole genome sequencing and bioinformatic analysis of Carbohydrate-Active Enzymes (CAZymes).
Main Results:
- Brevibacillus agri MX26 was isolated, demonstrating broad complex carbohydrate degradation.
- Enzymes exhibited high thermostability, active across a wide pH range (3.0-10.0) and temperature range (37-90 °C).
- Genomic analysis revealed 144 CAZyme-encoding genes, with novel mannanase, pectinase, and alginate lyase activities identified in this strain.
Conclusions:
- Brevibacillus agri MX26 is a promising source of novel, thermostable carbohydrases.
- The bacterium's genomic and biochemical profile supports its potential for industrial biotechnology.
- Applications include animal feed production and lignocellulosic biomass breakdown.
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