Analyse comparée des complexes pigment-protéines de chlorophycophytes marines benthiques
Analyse comparée des complexes pigment-protéines de chlorophycophytes marines benthiques
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分析底栖绿藻植物色素蛋白复合物的比较
DOI：
10.2216/i0031-8884-28-1-1.1
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发表时间：
1989
期刊：
影响因子：
--
通讯作者：
G. Levavasseur
中科院分区：
文献类型：
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作者：
G. Levavasseur
摘要采用SDS-PAGE电泳分离了5种大型海洋绿藻的叶绿素-蛋白复合物。高等植物的所有主要叶绿素-蛋白复合物（LHCP 2除外）在以下植物中被鉴定：石莼属，压缩浒苔，松藻，羽状苔藓和石莼。一些补充色素带，可能是与捕光PS I复合物观察到在这些物种中的一些。LHCP是所有物种中主要的叶绿素-蛋白复合物。其Chla/Chlb比值始终小于1。因此，相对大量的捕光复合物具有高含量的Chlb是绿色海藻的特征，而高等植物。此外，根据叶黄素的性质，在绿色海藻中发现了两种捕光复合物：叶黄素-Chla/Chlb-蛋白复合物和管黄质-Chla/Chlb-蛋白复合物。所有这些色素特征都表明了海藻捕光功能的重要性。
Abstract Chl-protein complexes of five species of macroscopic marine Chlorophyta were isolated by SDS-PAGE electrophoresis. All the major Chl-protein complexes (except LHCP2) of higher plants were identified in: Ulva sp., Enteromorpha compressa, Codium fragile, Bryopsis plumosa and Ulva olivascens. Some supplementary pigment bands that are likely to be associated to the light harvesting PS I complex were observed in some of these species. LHCP was the main Chl-protein complex in all species. Its Chla/Chlb ratio was always less than 1. Thus, a relatively large amount of light-harvesting complexes possessing a high content of Chlb was a characteristic of green seaweeds in contrast to higher plants. Furthermore, according to the nature of xanthophylls, two kinds of light-harvesting complexes were found in green seaweeds: a lutein-Chla/Chlb-protein complex and a siphonaxanthin-Chla/Chlb-protein complex. All of these pigment characteristics show how important the light-harvesting function is for seaweeds.