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  • Genome-based approach to evaluate the metabolic potentials and exopolysaccharides production of Bacillus paralicheniformis CamBx3 isolated from a Chilean hot spring
Title: Genome-based approach to evaluate the metabolic potentials and exopolysaccharides production of Bacillus paralicheniformis CamBx3 isolated from a Chilean hot spring
In the present study, a thermophilic strain designated CamBx3 was isolated from the Campanario hot spring, Chile. Based on 16S rRNA gene sequence, phylogenomic, and average nucleotide identity analysis the strain CamBx3 was identified asBacillus paralicheniformis. Genome analysis ofB. paralicheniformisCamBx3 revealed the presence of genes related to heat tolerance, exopolysaccharides (EPS), dissimilatory nitrate reduction, and assimilatory sulfate reduction. The pangenome analysis of strain CamBx3 with eightBacillusspp. resulted in 26,562 gene clusters, 7,002 shell genes, and 19,484 cloud genes. The EPS produced byB. paralicheniformisCamBx3 was extracted, partially purified, and evaluated for its functional activities.B. paralicheniformisCamBx3 EPS with concentration 5 mg mL−1showed an optimum 92 mM ferrous equivalent FRAP activity, while the same concentration showed a maximum 91% of Fe2+chelating activity.B. paralicheniformisCamBx3 EPS (0.2 mg mL−1) demonstratedβ-glucosidase inhibition. The EPS formed a viscoelastic gel at 45°C with a maximum instantaneous viscosity of 315 Pa.s at acidic pH 5. The present study suggests thatB. paralicheniformisCamBx3 could be a valuable resource for biopolymers and bioactive molecules for industrial applications.  more » « less
Award ID(s):
1920954
PAR ID:
10537357
Author(s) / Creator(s):
; ; ;
Publisher / Repository:
Frontiers in Microbiology
Date Published:
Journal Name:
Frontiers in Microbiology
Volume:
15
ISSN:
1664-302X
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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