Elucidation of Triacylglycerol Overproduction in the C₄ Bioenergy Crop Sorghum bicolor by Constraint-Based Analysis.

ABSTRACT: Upregulation of triacylglycerols (TAGs) in vegetative plant tissues such as leaves has the potential to drastically increase the energy density and biomass yield of bioenergy crops. In this context, constraint-based analysis has the promise to improve metabolic engineering strategies. Here we present a core metabolism model for the C₄ biomass crop Sorghum bicolor (iTJC1414) along with a minimal model for photosynthetic CO₂ assimilation, sucrose and TAG biosynthesis in C₃ plants. Extending iTJC1414 to a four-cell diel model we simulate C₄ photosynthesis in mature leaves with the principal photo-assimilatory product being replaced by TAG produced at different levels. Independent of specific pathways and per unit carbon assimila

SUBMITTER: Clark TJ 

PROVIDER: S-EPMC8892208 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature