Temperature-dependent endogenous oxygen concentration regulates microsomal oleate desaturase in developing sunflower seeds.

  title={Temperature-dependent endogenous oxygen concentration regulates microsomal oleate desaturase in developing sunflower seeds.},
  author={Hardy Rolletschek and Ljudmilla Borisjuk and Alicia S{\'a}nchez-Garc{\'i}a and Cecilia Gotor and Luis C Romero and Jos{\'e} Manuel Mart{\'i}nez-Rivas and Manuel Mancha},
  journal={Journal of experimental botany},
  volume={58 12},
Oleoyl-phosphatidylcholine desaturase (FAD2) is a key enzyme involved in fatty acid desaturation in oilseeds, which is affected by environmental temperature. The results of this study show that FAD2 is regulated in vivo via temperature-dependent endogenous oxygen concentrations in developing sunflower (Helianthus annuus L.) seeds. By combining in vivo oxygen profiling, in situ hybridization of FAD2 genes, an assay of energy status, fatty acid analysis, and an in vitro FAD2 enzyme activity assay… CONTINUE READING


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