Molecular mechanisms of anhydrobiosis in the terrestrial cyanobacterium

类菌孢素氨基酸（MAA）是水溶性色素，吸收280至340 nm的紫外线辐射。在这项研究中，新的MAAs纯化从陆地蓝藻地木耳，其化学结构进行了表征。这些独特的糖基化MAA具有多种作用，作为UV保护剂和抗氧化剂，与该生物体中的脱水作用相关。此外，糖基化的MAA模式可能是一个可行的化学分类学标记的表征形态上难以区分的N。公社。

Mycosporine-like amino acids (MAAs) are water-soluble pigments that absorb UV radiation of 280 to 340 nm. In this study, novel MAAs were purified from the terrestrial cyanobacterium Nostoc commune, and their chemical structures were characterized. These unique glycosylated MAAs have multiple roles as a UV protectant and an antioxidant relevant to anhydrobiosis in this organism. Moreover, glycosylated MAA patterns could be a feasible chemotaxonomic marker for the characterization of the morphologically indistinguishable N. commune.