Biochemical Society Transactions 2000-12-01

Arabidopsis thaliana mutants disrupted in lipid mobilization.

P R Lange, I Graham

Index: Biochem. Soc. Trans. 28(6) , 762-5, (2000)

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Abstract

To isolate mutants in the process of lipid mobilization during post-germinative growth we employed a screen using the pro-herbicide 2,4-dichlorophenoxybutyric acid (2,4-DB). The phenotypes of a number of 2,4-DB-resistant mutants are compared with previously characterized mutants disrupted in beta-oxidation or the glyoxylate cycle. We conclude that the strength of 2,4-DB resistance and the ability of the seedlings to grow in the absence of exogenous sugar are inversely correlated. Sugar dependence of 2,4-DB-resistant seedlings is a consequence of impaired storage-lipid mobilization.