【摘要】 本文对红毛菜纲(Bangiophyceae)和真红藻纲(Florideophyceae)的30种青岛海产红藻的R-藻红蛋白进行了比较研究。所测定的吸收光谱表明,这些红藻中的R-藻红蛋白可区分成两种光谱类型,即在可见光谱区有两个吸收峰的Ⅰ型R-藻红蛋白和有三个吸收峰的Ⅱ型R-藻红蛋白。红毛菜纲的9种低等红藻全是Ⅰ型R-藻红蛋白。在真红藻纲的高等红藻中有三种是Ⅰ型R-藻红蛋白,其余18种都是Ⅱ型R-藻红蛋白。根据这两种R-藻红蛋白在红藻中的分布,可以看到从Ⅰ型R-藻红蛋白向Ⅱ型R-藻红蛋白进化的趋势,但这种进化过程是比较复杂的,并不存在一条以真红藻纲的海索面目为截然的分界线。两种光谱类型的R-藻红蛋白在红藻中的出现具有一定的分类学意义。更多还原

【Abstract】 The present paper made comparative studies of R-phycoerythrin (R-PE) from 30 species of the red seaweeds (Bangiophyceae and .Florideophyceae). The measured absorption spectra show that R-PE from these red seaweeds have two spectral types, type I R-PE with two absorption peaks and type II R-PE wiht three absorption peaks. Nine species of a lower red seaweeds (Bangiophyceae) are of the type I R-PE, 3 species of a higher red seaweeds (Florideophyceae) are also of the type I R-PE, the remaining 18 species are of the type II R-PE. According 10 the distribution of two types of R-PE in red algae, an evolution from type I R-PE to type II R-PE can be observed, but this evolution process is more complicated and Nemalionales of Florideophyceae can not be considered as a definite line of demarcation. The occurrence of two types of R-PE in red algae is of taxonomic significance.更多还原