MAMC-M48 Lignocellulose-Degrading Consortium

Community ID CommunityMech:000041

Ecological State ENGINEERED

Environment soil
ENVO:00001998

A minimal active microbial consortium (MAMC-M48) for lignocellulose degradation, optimized through reductive screening from 18 candidate strains. The 5-member consortium consists of Stenotrophomonas maltophilia JN40, Paenibacillus sp. PALXIL05, Microbacterium sp. UYFA68, Chryseobacterium taiwanense DUCC3723, and Brevundimonas sp. R3. Enriched from soil bacteria on sugarcane waste, this synthetic community achieves 50.6% degradation of all lignocellulose fractions, reaching 96.5% of the degradation rate observed with the full 18-species pool, demonstrating high efficiency with minimal complexity.

Taxonomy

Taxon	Ontology ID	Functional Roles	Abundance
Stenotrophomonas maltophilia JN40	NCBITaxon:40324	PRIMARY_DEGRADER	DOMINANT
Paenibacillus sp. PALXIL05	NCBITaxon:375486	PRIMARY_DEGRADER	DOMINANT
Microbacterium sp. UYFA68	NCBITaxon:1605331	PRIMARY_DEGRADER	DOMINANT
Chryseobacterium taiwanense DUCC3723	NCBITaxon:363331	PRIMARY_DEGRADER	DOMINANT
Brevundimonas sp. R3	NCBITaxon:1501972	PRIMARY_DEGRADER	COMMON

Ecological Interactions

Taxon

Cross-feeding

Mutualism

Syntrophy

Competition

Commensalism

Synergistic Lignocellulose Degradation

SYNTROPHY

Source Taxon: Stenotrophomonas maltophilia JN40

Target Taxon: Paenibacillus sp. PALXIL05

Metabolites: cellulose (CHEBI:18246), xylan (CHEBI:37686), lignin (CHEBI:6457)

Biological Processes:

cellulose catabolic process (GO:0030245)
xylan catabolic process (GO:0045493)

Evidence

PMID:29392382 - SUPPORT (IN_VITRO)

"Enriched microbial communities, obtained from environmental samples through selective processes, can effectively contribute to lignocellulose degradation"

Cellulose Hydrolysis Partnership

SYNTROPHY

Source Taxon: Microbacterium sp. UYFA68

Target Taxon: Chryseobacterium taiwanense DUCC3723

Biological Processes:

cellulose catabolic process (GO:0030245)
interspecies interaction between organisms (GO:0044419)

Evidence

PMID:29392382 - SUPPORT (IN_VITRO)

"A consortium containing Stenotrophomonas maltophilia, Paenibacillus sp., Microbacterium sp., Chryseobacterium taiwanense, and Brevundimonas sp. was found to be the most effective degrading synthetic community."

Hemicellulose Degradation Partnership

SYNTROPHY

Source Taxon: Paenibacillus sp. PALXIL05

Target Taxon: Brevundimonas sp. R3

Biological Processes:

xylan catabolic process (GO:0045493)
interspecies interaction between organisms (GO:0044419)

Evidence

PMID:29392382 - SUPPORT (IN_VITRO)

"A consortium containing Stenotrophomonas maltophilia, Paenibacillus sp., Microbacterium sp., Chryseobacterium taiwanense, and Brevundimonas sp. was found to be the most effective degrading synthetic community."

Environmental Factors

Factor	Value	Unit
Substrate	sugarcane waste	N/A
Degradation efficiency	50.6% (96.5% of full consortium capacity)	N/A
Selection method	reductive screening	N/A
Origin	soil enrichment	N/A

Growth Media

Mineral salts medium with sugarcane straw for lignocellulose degradation (CultureMech:000423)

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Temperature 28 degrees Celsius

Atmosphere AEROBIC

Composition

Component	Concentration	Unit	CHEBI
Sugarcane straw (lignocellulose substrate)	10	g/L	CHEBI:18246
Mineral salts medium base	standard MSM formulation	unspecified	N/A
KNO3	0.25	G_PER_L	N/A
KH2PO4	0.1	G_PER_L	N/A
MgSO4 x 7 H2O	0.05	G_PER_L	N/A
CaCl2 x 2 H2O	0.01	G_PER_L	N/A
EDTA	5	G_PER_L	N/A
CuCl2 x 5 H2O	0.1	G_PER_L	N/A
FeSO4 x 7 H2O	2	G_PER_L	N/A
ZnSO4 x 7 H2O	0.1	G_PER_L	N/A
NiCl2 x 6 H2O	0.02	G_PER_L	N/A
CoCl2 x 6 H2O	0.2	G_PER_L	N/A
Na2MoO4	0.03	G_PER_L	N/A
MnCl2 x 4 H2O	0.03	G_PER_L	N/A

Preparation notes: Mineral salts medium (MSM) supplemented with 1% sugarcane straw as lignocellulose substrate. All five strains are aerobic degraders isolated from soil through enrichment on sugarcane waste. Each strain inoculated at 1x10^5 cells/mL for total inoculum of 5x10^5 cells/mL. The consortium was optimized through reductive screening from 18 candidate strains using molecular phenotyping and metabolic characterization. MAMC-M48 (synthetic community 48) showed highest degradation efficiency (50.6% of all lignocellulose fractions), reaching 96.5% of the degradation rate observed with full 18-species pool.

Evidence

PMID:29392382

"Following an enrichment of soil bacteria capable of degrading lignocellulose material from sugarcane origin, we applied a reductive-screening approach based on molecular phenotyping, identification, and metabolic characterization to obtain a selection of 18 lignocellulose-degrading strains"

PMID:29392382

"The screening method described here successfully led to the selection of effective MAMC, whose degradation potential reached up 96.5% of the degradation rates when all 18 species were present"

PMID:29392382

"A consortium containing Stenotrophomonas maltophilia, Paenibacillus sp., Microbacterium sp., Chryseobacterium taiwanense, and Brevundimonas sp. was found to be the most effective degrading synthetic community"