Mutants of Arabidopsis deficient in the synthesis of alpha-linolenate. Biochemical and genetic characterization of the endoplasmic reticulum linoleoyl desaturase.

Abstract excerpt

The overall fatty compositions of leaf and root lipids from a mutant of Arabidopsis thaliana were characterized by reduced levels of linolenate (18:3) and correspondingly elevated levels of linoleate (18:2) as a consequence of a single nuclear mutation at the fad3 locus. Comparison of the fatty acid compositions of individual lipids from wild type and mutant plants showed that chloroplast lipids were largely...

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