ETHANOL-INDUCED INJURIES TO CARROT CELLS - THE ROLE OF ACETALDEHYDE

被引：119

作者：

PERATA, P ^{[1
]}

ALPI, A ^{[1
]}

机构：

[1] UNIV PISA,DIPARTIMENTO BIOL PIANTE AGR,VIALE PIAGGE 23,I-56124 PISA,ITALY

来源：

PLANT PHYSIOLOGY | 1991年 / 95卷 / 03期

关键词：

D O I：

10.1104/pp.95.3.748

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Carrot (Daucus carota L.) cell cultures show high sensitivity to ethanol since both unorganized cell growth and somatic embryogenesis are strongly inhibited by ethanol at relatively low concentrations (10-20 millimolar). The role of acetaldehyde on ethanol-induced injuries to suspension cultured carrot cells was evaluated. When ethanol oxidation to acetaldehyde is prevented by adding an alcohol-dehydrogenase (EC 1.1.1.1) inhibitor (4-methylpyrazole) to the culture medium, no ethanol toxicity was observed, even if ethanol was present at relatively high concentrations (40-80 millimolar). Data are also presented on the effects of exogenously added acetaldehyde on both carrot cell growth and somatic embryogenesis. We conclude that the observed toxic effects of ethanol cannot be ascribed to ethanol per se but to acetaldehyde.

引用

页码：748 / 752

页数：5

共 20 条

[1] EFFECTS OF O-2 CONCENTRATION ON RICE SEEDLINGS [J].