During the summer of 1946, while studying material taken from Marble Lake in Dickinson County in Northwest Iowa a Blepharisma, apparently containing zoochlorellae, was observed. Kahl (1932) lists no symbiotic Blepharisma, but describes Blepharisma coeruleum which apparently eats only the alga Tetraspora. Kahl also cites Blepharisma tardum and Blepharisma dileptus as having a diet composed primarily of red bacteria. It was thought an interesting problem would be to determine the relationship between the Blepharisma and green alga thought to be zoochlorella.
Proceedings of the Iowa Academy of Science
©1948 Iowa Academy of Science, Inc.
Johnson, Leland P.
"A Symbiotic Blepharisma,"
Proceedings of the Iowa Academy of Science, 55(1), 391-393.
Available at: https://scholarworks.uni.edu/pias/vol55/iss1/58