Analysis of TETRAKETIDE α-PYRONE REDUCTASE function in Arabidopsis thaliana reveals a previously unknown, but conserved, biochemical pathway in sporopollenin monomer biosynthesis.

@article{Grienenberger2010AnalysisOT,
  title={Analysis of TETRAKETIDE α-PYRONE REDUCTASE function in Arabidopsis thaliana reveals a previously unknown, but conserved, biochemical pathway in sporopollenin monomer biosynthesis.},
  author={Etienne Grienenberger and Sung Soo Kim and Benjamin Lallemand and Pierrette Geoffroy and Dimitri Heintz and Clarice de Azevedo Souza and Thierry Heitz and Carl J. Douglas and Michel Legrand},
  journal={The Plant cell},
  year={2010},
  volume={22 12},
  pages={
          4067-83
        }
}
The precise structure of the sporopollenin polymer that is the major constituent of exine, the outer pollen wall, remains poorly understood. Recently, characterization of Arabidopsis thaliana genes and corresponding enzymes involved in exine formation has demonstrated the role of fatty acid derivatives as precursors of sporopollenin building units. Fatty acyl-CoA esters synthesized by ACYL-COA SYNTHETASE5 (ACOS5) are condensed with malonyl-CoA by POLYKETIDE SYNTHASE A (PKSA) and PKSB to yield… CONTINUE READING

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