Science. 1982 Sep 10;217(4564):1034-5. doi: 10.1126/science.217.4564.1034.
Laboratory cultures have been established of the didemnid symbiont Prochloron, a unique prokaryotic alga that synthesizes chlorophylls a and b but no phycobilin pigments. Cell division in Prochloron cultures occurs under acidic conditions (pH 5.5) in the presence of tryptophan. The alga is a naturally occurring tryptophan auxotroph that survives in nature by close association with the host, Diplosoma similis. The metabolic dysfunction that renders Prochloron auxotrophic may involve only the initial step of the tryptophan biosynthetic pathway.
实验室已经建立了迪斯米德共生体 Prochloron 的培养物，Prochloron 是一种独特的原核藻类，它合成叶绿素 a 和 b，但不合成藻胆素色素。Prochloron 培养物中的细胞分裂是在酸性条件（pH 值为 5.5）下，在色氨酸的存在下进行的。该藻类是一种天然的色氨酸营养缺陷型，通过与宿主 Diplosoma similis 的密切联系在自然界中存活。使 Prochloron 营养缺陷型的代谢功能障碍可能只涉及色氨酸生物合成途径的初始步骤。
