LOW MOLECULAR WEIGHT CARBOHYDRATE PATTERNS IN THE BANGIOPHYCEAE (RHODOPHYTA)

摘要: The qualitative and quantitative occurrence of low molecular weight carbohydrates (LMWCs) in the Bangiophyceae is surveyed. Members orders Erythropeltidales (Sahlingia Erythrotrichia), Compsopogonales (Compsopogon), Bangiales (Bangia Porphyra) all contain floridoside and, some cases, D- L-isofloridoside, making group chemotaxonomically most homogeneous; L-isofloridoside occurred only Bangiales. Porphyridiales showed great variation carbohydrate types: Chroodactylon contained sorbitol, Porphyridium floridoside, Dixoniella Rhodella species exhibited mannitol, Rhodosorus digeneaside whereas Stylonema D-isofloridoside, digeneaside, sorbitol. extensive LMWC composition within between different suggests that enzyme systems for each might have developed repeatedly Florideophyceae. Nonetheless, a phylogenetic tree based on small-subunit ribosomal RNA supports patterns Bangiophyceae.