A synthetic, light-driven consortium pairing the cyanobacterium Synechococcus elongatus PCC 7942 (engineered to secrete sucrose via the cscB+ transporter) with the oleaginous yeast Yarrowia lipolytica Po1g. The cyanobacterium fixes CO2 and exports sucrose, which Y. lipolytica converts to lipids for biofuel production. This system demonstrates photosynthetic carbon capture coupled to lipid biosynthesis in a modular platform.
Taxonomy
| Taxon | Ontology ID | Functional Roles | Abundance |
|---|---|---|---|
| Synechococcus elongatus PCC 7942 cscB+ | NCBITaxon:32046 |
PRIMARY_PRODUCER
|
DOMINANT |
| Yarrowia lipolytica Po1g | NCBITaxon:4952 |
CROSS_FEEDER
|
ABUNDANT |
Ecological Interactions
CO2 Fixation and Sucrose Production
CROSS_FEEDINGSource Taxon: Synechococcus elongatus PCC 7942 cscB+
Metabolites: sucrose (CHEBI:17992)
Biological Processes:
- photosynthesis (GO:0015979)
- sucrose biosynthetic process (GO:0005986)
Evidence
-
PMID:28127397 - SUPPORT (IN_VITRO)"We previously engineered a model cyanobacterium, Synechococcus elongatus PCC 7942, to secrete the bulk of the carbon it fixes as sucrose, a carbohydrate that can be utilized by many other microbes"
Sucrose to Lipid Conversion
CROSS_FEEDINGSource Taxon: Yarrowia lipolytica Po1g
Metabolites: sucrose (CHEBI:17992), triacylglycerol (CHEBI:17855)
Biological Processes:
- sucrose catabolic process (GO:0005987)
- lipid biosynthetic process (GO:0008610)
Evidence
-
PMID:28127397 - SUPPORT (IN_VITRO)"Stability and productivity of autotroph/heterotroph co-cultures was dependent on heterotroph sucrose utilization, as well as other species-independent interactions that we observed across all dyads"