Arabidopsis ADC genes involved in polyamine biosynthesis areb essential for seed development

被引：109

作者：

Urano, K

Hobo, T

Shinozaki, K

机构：

[1] RIKEN, Tsukuba Inst, Plant Mol Biol Lab, Tsukuba, Ibaraki 3500074, Japan

[2] RIKEN, Genom Sci Ctr, Plant Funct Genom Res Grp, Tsurumi Ku, Yokohama, Kanagawa 2300045, Japan

来源：

FEBS LETTERS | 2005年 / 579卷 / 06期

关键词：

arginine decarboxylase; polyamines; seed; development;

D O I：

10.1016/j.febslet.2005.01.048

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Arginine decarboxylase (ADC) is a rate-limiting enzyme that catalyzes the first step of polyamine (PA) biosynthesis in Arabidopsis thaliana. We generated a double mutant deficient in Arabidopsis two ADC genes (ADC1(-/-)ADC2(-/-)) and examined their roles in seed development. None of the F-2 seedlings from crosses of adc1-1 and ade2-2 had the ADC1(-/-)ADC2(-/-) genotype. In addition, some abnormal seeds were observed among the ADC1(+/-)ADC2(-/-) and ADC1(-/-)ADC2(+/-) siliques. Viable offspring with the ADC1(-/-)ADC2(-/-) genotype could not be obtained from the ADC1(+/-)ADC2(-/-) and ADC1(-/-)ADC2(+/-) plants. These results indicate that AtADC genes are required for production of polyamines that are essential for normal seed development in Arabidopsis. (C) 2005 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved.

引用

页码：1557 / 1564

页数：8

共 31 条

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