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Okeke-Lu Cellulolytic-Xylanolytic Consortium

Ecological State STABLE
Environment soil
ENVO:00001998
Source File Okeke_Lu_Cellulolytic_Consortium.yaml

A defined 5-member bacterial consortium from Alabama soil capable of dual cellulose and hemicellulose degradation. The consortium consists of Pseudoxanthomonas byssovorax DB1, Microbacterium oxydans DB2, Bacillus sp. DB7, Ochrobactrum sp. DB8, and Klebsiella sp. DB13. Isolates DB1 and DB2 display the highest cellulase activity (27.83 and 31.22 U/mg), producing a complete enzyme system including filter paper cellulase, β-glucosidase, xylanase, and β-xylosidase for comprehensive lignocellulose bioprocessing.

Taxonomy

Taxon Ontology ID Functional Roles Abundance
Pseudoxanthomonas byssovorax DB1 NCBITaxon:324747
PRIMARY_DEGRADER
DOMINANT
Microbacterium oxydans DB2 NCBITaxon:82380
PRIMARY_DEGRADER
DOMINANT
Bacillus sp. DB7 NCBITaxon:870529
PRIMARY_DEGRADER
COMMON
Ochrobactrum sp. DB8 NCBITaxon:870532
PRIMARY_DEGRADER
COMMON
Klebsiella sp. DB13 NCBITaxon:870530
PRIMARY_DEGRADER
COMMON

Ecological Interactions

Cellulose Degradation

SYNTROPHY

Metabolites: cellulose (CHEBI:18246), glucose (CHEBI:17234)

Biological Processes:

Downstream Effects:
→ Hemicellulose Degradation

Evidence

  • PMID:20859703 - SUPPORT (IN_VITRO)
    "Use of microbial consortium in bioprocessing of lignocelluloses could reduce problems such as incomplete synergistic enzymes, end-product inhibition, adsorption, and requirement for high amounts of enzymes in direct use of enzymes."

Hemicellulose Degradation

SYNTROPHY

Metabolites: xylan (CHEBI:37686), xylose (CHEBI:18222)

Biological Processes:

Evidence

  • PMID:20859703 - SUPPORT (IN_VITRO)
    "Isolate DB2 produced the highest xylanase activity (103.05 U mg⁻¹), while the highest β-xylosidase activity (7.72 U mg⁻¹) was observed with DB13"

Environmental Factors

Factor Value Unit
Source environment Alabama soil N/A
Substrate cellulose and hemicellulose N/A
Enzyme activity complete hydrolytic system N/A