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Diversion of Carbon Flux from Sugars to Lipids Improves the Growth of an Arabidopsis Starchless Mutant
Published: July 17, 2019
Posted: August 03, 2021

Objective

To test if redirecting carbon from seed carbohydrate to vegetative lipids relieves growth inhibition.

Approach

  • To test the role of lipids in plant growth, transgenic plants overexpressing PDAT1 in adg1 mutants were generated and grown under a 16-h/8-h day/night cycle.

Results/Impacts

  • Overexpression of PDAT1 enhances fatty acid and TAG synthesis at the expense of soluble sugars.
  • Lipids in the form of TAG can partially replace the function of starch in maintaining energy homeostasis and plant growth in starchless mutants.
  • This study improved understanding of how increasing TAG accumulation affects plant growth.

Fan, J. et al. “Diversion of carbon flux from sugars to lipids improves the growth of an Arabidopsis starchless mutant.” Plants 8(7), 229 (2019). [DOI:10.3390/plants8070229]

This effort jointly supported by BES Physical Biosciences.

Topic Areas:

  • Research Area: Genomic Analysis and Systems Biology
  • Research Area: Plant Systems and Feedstocks, Plant-Microbe Interactions
  • Research Area: DOE Bioenergy Research Centers (BRC)

Division: SC-33.2 Biological Systems Science Division, BER

 

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