Water-soluble vitamins in cells and spent culture supernatants of Poteriochromonas stipitata,Euglena gracilis,and Tetrahymena thermophila |
| |
| Authors: | Elliott R. Baker John J. A. McLaughlin Seymour H. Hutner Barbara DeAngelis Susan Feingold Oscar Frank Herman Baker |
| |
| Affiliation: | (1) Louis Calder Conservation & Ecology Center of Fordham University, 10458 Bronx, New York, USA;(2) Department of Biology, Haskins Laboratories of Pace University, 10038 New York, NY, USA;(3) Department of Preventive Medicine and Community Health, New Jersey Medical School, 07018 East Orange, NJ, USA;(4) Department of Medicine, New Jersey Medical School, 07018 East Orange, NJ, USA |
| |
| Abstract: | Vitamins B6 and B12, biotin, folates, riboflavin, nicotinate, pantothenate, biopterin, and vitamin C (l-ascorbate) were assayed in Poteriochromonas stipitata, Euglena gracilis, and Tetrahymena thermophila cells grown in defined media and in spent culture supernatants. P. stipitata and E. gracilis synthesized, stored and excreted folates (mainly as 5-methyltetrahydrofolate), B6, riboflavin, pantothenate, nicotinate, biopterin, and ascorbate. E. gracilis synthesized and stored biotin. T. thermophila did not synthesize the above vitamins except for B12, biopterin, and ascorbate; it excreted biopterin and stored B12 and ascorbate. Thiamin was left of consideration because all 3 organisms are thiamin auxotrophs. Possible ecological implications of these findings are considered. |
| |
| Keywords: | Poteriochromonas Euglena Tetrahymena Crithidia Vitamin excretion Vitamin B12 Biotin Thiamin Folates Vitamin B6 Riboflavin Nicotinic acid Pantothenate Vitamin C Bioterin Phytoplankton |
| 本文献已被 SpringerLink 等数据库收录！ |
|
