Transcription profiling of Arabidopsis LEC1-overexpressing transgenic plants reveals LEAFY COTYLEDON1 is a key regulator of fatty acid biosynthesis in Arabidopsis thaliana

ABSTRACT: In plants, fatty acids are de novo synthesized predominantly in plastids fromacetyl-CoA. Although fatty acid biosynthesis has been biochemically well-studied, little isknown about the regulatory mechanisms of the pathway. Here, we show that overexpressionof the Arabidopsis (Arabidopsis thaliana) LEAFY COTYLEDON1 (LEC1) gene causesglobally increased expression of fatty acid biosynthetic genes, which are involved in keyreactions of condensation, chain elongation and desaturation of fatty acid biosynthesis. Inthe plastidial fatty acid synthetic pathway, over 58% of known enzyme-coding genes areupregulated in LEC1-overexpressing transgenic plants, including those encoding threesubunits of acetyl-CoA carboxylase, a key enzyme controlling the fatty acid biosynthesisflux. Moreover, genes involved

ORGANISM(S): Arabidopsis thaliana

SUBMITTER: Jinye Mu 

PROVIDER: E-GEOD-12137 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress