ARABINOSE KINASE-DEFICIENT MUTANT OF ARABIDOPSIS-THALIANA

被引：31

作者：

DOLEZAL, O ^{[1
]}

COBBETT, CS ^{[1
]}

机构：

[1] UNIV MELBOURNE, DEPT GENET, PARKVILLE, VIC 3052, AUSTRALIA

来源：

PLANT PHYSIOLOGY | 1991年 / 96卷 / 04期

关键词：

D O I：

10.1104/pp.96.4.1255

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

A mutant of Arabidopsis thaliana that is sensitive to exogenous L-arabinose has been isolated. Comparisons of growth of the wild type, mutant, and F1 and F2 progeny of crosses showed the arabinose-sensitive phenotype is semidominant and segregates as a single Mendelian locus. Crosses of the mutant to marker strains showed the mutation is linked to the eceriferum-2 locus on chromosome 4. In vivo incorporation of exogenous labeled L-arabinose into ethanol-insoluble polysaccharides was greatly reduced in the mutant with a concomitant accumulation of free labeled arabinose. Enzyme assays of crude plant extracts demonstrated a defect in arabinose kinase activity in the mutant.

引用

页码：1255 / 1260

页数：6

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