期刊
JOURNAL OF PHYCOLOGY
卷 54, 期 2, 页码 264-274出版社
WILEY
DOI: 10.1111/jpy.12619
关键词
chemotaxonomy; MAAs; polyols; prasiolin; sunscreen; terrestrial algae; UV radiation
资金
- Deutsche Forschungsgemeinschaft (DFG) [KA899/16]
- Austrian Science Fund (FWF) [ZFP296710]
In many regions of the world, aeroterrestrial green algae of the Trebouxiophyceae (Chlorophyta) represent very abundant soil microorganisms, and hence their taxonomy is crucial to investigate their physiological performance and ecological importance. Due to a lack in morphological features, taxonomic and phylogenetic studies of Trebouxiophyceae algae can be a challenging task. Since chemotaxonomic markers could be a great assistance in this regard, 22 strains of aeroterrestrial Trebouxiophyceae were chemically screened for their polyol-patterns as well as for mycosporine-like amino acids (MAAs) in their aqueous extracts using RP-HPLC and LC-MS. d-sorbitol was exclusively detected in members of the Prasiolaceae family. The novel MAA prasiolin and a related compound (prasiolin-like) were present in all investigated members of the Prasiola-clade, but missing in all other tested Trebouxiophyceae. While prasiolin could only be detected in field material directly after extraction, the prasiolin-like compound present in the other algae was fully converted into prasiolin after 24 h. These findings suggest n-sorbitol and prasiolin-like compounds are suitable chemotaxonomic markers for the Prasiola-clade and Prasiola-clade, respectively. Additional UV-exposure experiments with selected strains show that MAA formation and accumulation can be induced, supporting their role as UV-sunscreen.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据