image: Ornithocercus thumii, a marine dinoflagellate with cyanobacterial symbionts. Ornithocercus species cells are surrounded by a cellulosic covering and crown-shaped extensions of the covering that form an extracellular chamber. A number of coccoid, brown-colored cyanobacteria reside in the specialized chamber. view more
Credit: Takuro Nakayama
科研人员描述了一种蓝细菌OmCyn的基因组，此前由于它与一种甲藻��这种蓝细菌生活于其中的真核生物��的共生关系而没有在海洋宏基因组研究中被发现；这种蓝细菌在全世界分布，并且代表了具有生态重要性的蓝细菌群体的一个世系，这提示可能存在其他的尚未发现的隐秘的蓝细菌世系。
###
Journal
Proceedings of the National Academy of Sciences