Figure 9.

Content of photosynthetic pigments in Aldrovanda vesiculosa plant material from in vitro cultivation and from a natural site (Lake Łukie). MS—Murashige and Skoog medium formulation, 1/2N, 1/5MS, 1/10MS—mineral salts diluted to 1/2, 1/5, 1/10; N—content of nitrogen compounds NH₄NO₃ and KNO₃ with concentration doubled (2N), unchanged (1N) or diluted twice (1/2N); ON—natural water lake. Green represents chlorophyll a content, blue—chlorophyll b, red—carotenoids, and yellow—sum of pigments.