A NOVEL TYPE OF CHLOROPHYLL CATABOLITE IN SENESCENT BARLEY LEAVES

被引：50
|
作者：
BORTLIK, K
PEISKER, C
MATILE, P
机构：
[1] Department of Plant Biology, University of Zurich, Zurich, CH-8008
来源：
JOURNAL OF PLANT PHYSIOLOGY | 1990年 / 136卷 / 02期
关键词：
catabolite; Chl; chlorophyll; FC; foliar senescence; high-performance liquid chromatography; Hordeum vulgare; HPLC; lipofuscin-like fluorescent compound; RP; rust-coloured pigment; thin layer chromatography; TLC; vacuole;
D O I：
10.1016/S0176-1617(11)81659-7
中图分类号：
Q94 [植物学];
学科分类号：
071001 ;
摘要：
A group of novel non-green catabolites of chlorophyll is presented. The native compounds are colourless but on thin layer silicagel plates they are readily oxidized to rust-coloured pigments (RPs). In senescent primary leaves of barley the predominant RP, RP 14, is progressively accumulated. It is located in the vacuoles of senescent mesophyll cells. The origin of RP 14 from chlorophyll has been demonstrated by means of radiolabelling of porphyrins during the greening of etiolated barley seedlings and tracing of the label during subsequent induction of senescence. RI's appear to represent secondary or even final products of chlorophyll breakdown. © 1990, Gustav Fischer Verlag, Stuttgart. All rights reserved.
引用
收藏
页码：161 / 165
页数：5
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