Norflurazon-tolerant dwarf mutants of Arabidopsis as a model for studying plant resistance to oxidative stress

被引：0

作者：

Ezhova, TA ^{[1
]}

Soldatova, OP ^{[1
]}

Ondar, UN ^{[1
]}

Mamanova, LB ^{[1
]}

Radyukina, NL ^{[1
]}

Sofin, AV ^{[1
]}

Romanov, VI ^{[1
]}

Shestakov, SV ^{[1
]}

机构：

[1] RUSSIAN ACAD SCI,AN BAKH BIOCHEM INST,MOSCOW 117071,RUSSIA

来源：

RUSSIAN JOURNAL OF PLANT PHYSIOLOGY | 1997年 / 44卷 / 05期

关键词：

Arabidopsis thaliana; oxidative stress; phytohormones;

D O I：

暂无

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Norflurazon-tolerant mutants er1-1, er1-3, er2, and na were obtained by screening lines from a genetic collection of Arabidopsis thaliana (L.) Heynh. on a selective medium containing norflurazon (NF), an inhibitor of carotenoid biosynthesis. These mutants were characterized by a dwarf phenotype and differed in the activities of enzymes that scavenge active oxygen species (peroxidase, glutathione dehydrogenase, glutathione reductase, and superoxide dismutase). The er1-3 mutant had a higher ABA content, and germination of the er2 mutant seeds displayed enhanced sensitivity to this hormone. It is concluded that NF-tolerant mutants of Arabidopsis present a convenient model for studying the role of phytohormones in the induction of plant adaptive response to oxidative stress.

引用

页码：575 / 579

页数：5

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