Polyamines inhibit lipid peroxidation in senescing oat leaves

被引：90

作者：

Borrell, A

Carbonell, L

Farras, R

PuigParellada, P

Tiburcio, AF

机构：

[1] UNIV BARCELONA, FAC FARM, LAB FISIOL VEGETAL, E-08028 BARCELONA, SPAIN

[2] UNIV BARCELONA, FAC MED, UNITAT FARMACOL, E-08028 BARCELONA, SPAIN

来源：

PHYSIOLOGIA PLANTARUM | 1997年 / 99卷 / 03期

关键词：

Avena sativa; diaminopropane; guazatine; lipid peroxidation; lipoxygenase; malondialdehyde; oats; polyamine oxidase; polyamines; senescence; spermidine; spermine;

D O I：

10.1034/j.1399-3054.1997.990305.x

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Exogenous diaminopropane, spermidine, spermine and guazatine, an inhibitor of polyamine oxidase (EC 1.5.3.3) activity, were able to inhibit loss of chlorophyll and reduce the level of malondialdehyde in dark-incubated Avena sativa L. cv. Victory leaves, as well as in leaves subjected to osmotica used for protoplast isolation. Both lipoxygenase (EC 1.13.11.12) activity and enzyme-protein levels were reduced by incubation with spermine. The results provide support for the contention that the inhibition of lipid peroxidation by polyamines may be one of the mechanisms responsible for their anti-senescence effects.

引用

收藏

页码：385 / 390

页数：6

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