Red algae (Rhodophyta) are primarily found in marine habitats around the world and they have been a prolific source of structurally diverse natural products. Among them the genus Bostrychia (Ceramiales, Rhodomelaceae) consists of approximately 40 taxonomically accepted species, and some, e. g., B. tenella, B. radicans, B. moritziana, B. simpliciuscula and B. intricate, include cryptic species. DNA sequence data show three genetic lineages within Bostrychia calliptera, another polyphyletic species requiring further taxonomic investigation. In an attempt to examine whether there are differences in the metabolite pattern that support the re-circumscription of the species and to uncover biogeographic patterns, phytochemical profiling of those samples used for DNA sequencing was conducted. This investigation revealed clearly three different chemotypes, corresponding to the lineages of the published molecular analysis results. The first lineage had a distinct and recognizably different phytochemical profile in contrast to the second and the third lineage which shared some similarities. Still, variations in the pattern of their phenolic compounds allowed a clear discrimination between the second and third lineage, too. The most important marker substances were isolated and their structures elucidated resulting in the characterization of four undescribed phenols. The isolated substances from B. calliptera are considered as suitable chemotaxonomic markers within this polyphyletic group.

中文翻译：

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Mycosporine-like 氨基酸，溴化和硫酸化酚：用于重新评估 Bostrychia calliptera（Ceramiales，Rhodophyta）分类的合适化学分类标记

红藻（Rhodophyta）主要存在于世界各地的海洋栖息地，它们是结构多样的天然产物的丰富来源。其中 Bostrychia 属（Ceramiales、Rhodomelaceae）由大约 40 种分类学接受的物种组成，并且一些，例如 B.tenella、B.radicans、B.moritziana、B.simpliciuscula 和 B.intricate，包括隐秘物种。DNA 序列数据显示 Bostrychia calliptera 中的三个遗传谱系，这是另一种需要进一步分类研究的多系物种。为了检查支持物种重新界定的代谢物模式是否存在差异并揭示生物地理模式，对用于 DNA 测序的那些样本进行了植物化学分析。这项调查清楚地揭示了三种不同的化学型，对应于已发表的分子分析结果的谱系。与共享一些相似性的第二和第三谱系相比，第一谱系具有明显且可识别不同的植物化学特征。尽管如此，它们酚类化合物模式的变化也允许明确区​​分第二和第三谱系。分离出最重要的标记物质并阐明了它们的结构，从而对四种未描述的酚类进行了表征。从 B. calliptera 中分离出的物质被认为是该多系群中合适的化学分类标记。与共享一些相似性的第二和第三谱系相比，第一谱系具有明显且可识别不同的植物化学特征。尽管如此，它们酚类化合物模式的变化也允许在第二和第三谱系之间进行明确区分。分离出最重要的标记物质并阐明了它们的结构，从而对四种未描述的酚类进行了表征。从 B. calliptera 中分离出的物质被认为是该多系群中合适的化学分类标记。与共享一些相似性的第二和第三谱系相比，第一谱系具有明显且可识别不同的植物化学特征。尽管如此，它们酚类化合物模式的变化也允许明确区​​分第二和第三谱系。分离出最重要的标记物质并阐明了它们的结构，从而对四种未描述的酚类进行了表征。从 B. calliptera 中分离出的物质被认为是该多系群中合适的化学分类标记。分离出最重要的标记物质并阐明了它们的结构，从而对四种未描述的酚类进行了表征。从 B. calliptera 中分离出的物质被认为是该多系群中合适的化学分类标记。分离出最重要的标记物质并阐明了它们的结构，从而对四种未描述的酚类进行了表征。从 B. calliptera 中分离出的物质被认为是该多系群中合适的化学分类标记。