Article
Identification of the Arabidopsis dry2/sqe1-5 mutant reveals a central role for sterols in drought tolerance and regulation of reactive oxygen species.
The Plant journal : for cell and molecular biology - 1 Jul 2009
Posé David, Castanedo Itziar, Borsani Omar, Nieto Benjamín, Rosado Abel, Taconnat Ludivine, Ferrer Albert, Dolan Liam, Valpuesta Victoriano, Botella Miguel A
Abstract excerpt
Squalene epoxidase enzymes catalyse the conversion of squalene into 2,3-oxidosqualene, the precursor of cyclic triterpenoids. Here we report that the Arabidopsis drought hypersensitive/squalene epoxidase 1-5 (dry2/sqe1-5) mutant, identified by its extreme hypersensitivity to drought stress, has altered stomatal responses and root defects because of a point mutation in the SQUALENE EPOXIDASE 1 (SQE1) gene. GC-MS...
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