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Euglena-Chlorella Microalgal Biorefinery Coculture

Community ID CommunityMech:000325
Ecological State ENGINEERED
Environment microalgal laboratory coculture
ENVO:01001405

A defined coculture of Euglena gracilis and Chlorella pyrenoidosa optimized for biomass, lipid, and alpha-tocopherol production. The two phototrophs show complementary light-harvesting, carbon-fixation, electron-transport, and metabolite-secretion functions.

Taxonomy

Taxon Ontology ID Functional Roles Abundance
Euglena gracilis NCBITaxon:3039
PRIMARY_PRODUCER
ABUNDANT
  • PMID:42248260 - SUPPORT (IN_VITRO)
    "co-culture system using Euglena gracilis (EG) and Chlorella pyrenoidosa (CP)"
  • PMID:42248260 - SUPPORT (IN_VITRO)
    "EG primarily enhanced light-harvesting capacity and antioxidative metabolite secretion"
Chlorella pyrenoidosa NCBITaxon:3078
PRIMARY_PRODUCER
ABUNDANT
  • PMID:42248260 - SUPPORT (IN_VITRO)
    "co-culture system using Euglena gracilis (EG) and Chlorella pyrenoidosa (CP)"
  • PMID:42248260 - SUPPORT (IN_VITRO)
    "CP intensified electron transport activity, enhanced carbon fixation capacity, and released lipid-associated metabolites"

Ecological Interactions

Ecological interaction network for Euglena-Chlorella Microalgal Biorefinery Coculture Bipartite graph where circle nodes represent taxa and each ecological interaction is drawn as a distinct non-circular symbol, with colour repeating the same distinction (mutualism, niche partitioning).
Taxon
Mutualism
Niche partitioning

Complementary Microalgal Metabolic Division of Labor

NICHE_PARTITIONING

Evidence

  • PMID:42248260 - SUPPORT (IN_VITRO)
    "Multi-omics analysis revealed a clear metabolic division of labor"
  • PMID:42248260 - SUPPORT (IN_VITRO)
    "collectively driving process intensification in terms of biomass and lipid productivity"

Synergistic Biorefinery Production

MUTUALISM

Evidence

  • PMID:42248260 - SUPPORT (IN_VITRO)
    "corresponding to 1.18-1.52-fold, 1.58-2.81-fold, and 2.13-9.90-fold increases relative to monoculture systems"
  • PMID:42248260 - SUPPORT (IN_VITRO)
    "the logarithmic growth phase was reduced by 50% (3 days)"

External Resources

Name Repository Resource ID
Primary publication - Euglena-Chlorella metabolic division of labor
Primary multi-omics study of the exact two-species microalgal coculture. 		OTHER PMID:42248260
  • PMID:42248260 - SUPPORT (IN_VITRO)
    "co-culture system using Euglena gracilis (EG) and Chlorella pyrenoidosa (CP)"

Environmental Factors

Factor Value Unit
Inoculation ratio 3:7 Euglena gracilis:Chlorella pyrenoidosa
  • PMID:42248260 - SUPPORT (IN_VITRO)
    "optimized inoculation ratio of EG:CP = 3:7 in TAP medium"
Coculture production endpoints 1.23 g/L biomass; 163.7 mg/L/d lipid; 1976.28 micrograms/L alpha-tocopherol N/A
  • PMID:42248260 - SUPPORT (IN_VITRO)
    "biomass concentration of 1.23 g/L, lipid productivity of 163.7 mg/L/d, and alpha-tocopherol yield of 1976.28 mug/L"
Alpha-lipoic acid supplementation exogenous supplementation N/A
  • PMID:42248260 - SUPPORT (IN_VITRO)
    "exogenous alpha-lipoic acid supplementation further amplified biomass accumulation"

Growth Media

TAP medium microalgal coculture

Preparation notes: The abstract identifies TAP medium but does not provide its formulation or detailed physical cultivation conditions.

Evidence

PMID:42248260

"optimized inoculation ratio of EG:CP = 3:7 in TAP medium"