EFFECTS OF EXOGENOUS POLYAMINES AND DIFLUOROMETHYLORNITHINE ON SEED-GERMINATION AND ROOT-GROWTH OF ARABIDOPSIS-THALIANA

被引：23
|
作者：
MIRZA, JI [1 ]
BAGNI, N [1 ]
机构：
[1] UNIV BOLOGNA,INST BOT,I-40126 BOLOGNA,ITALY
来源：
PLANT GROWTH REGULATION | 1991年 / 10卷 / 02期
关键词：
POLYAMINES; DIFLUOROMETHYLORNITHINE; ROOT GROWTH; SEED GERMINATION;
D O I：
10.1007/BF00024962
中图分类号：
Q94 [植物学];
学科分类号：
071001 ;
摘要：
Effects of exogenous polyamines and difluoromethylornithine (DFMO) on seed germination and seedling root growth of Arabidopsis thaliana were investigated. Root growth was stimulated by low concentrations of putrescine but was increasingly inhibited by high concentrations of putrscine. DFMO inhibited root growth and this inhibition was reversed by applying putrescine. In contrast, both spermidine and spermine had no effect on root growth but inhibited seed germination. The results suggest a possible requirement of endogeneous putrescine for normal root growth of Arabidopsis seedlings.
引用
收藏
页码：163 / 168
页数：6
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