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SECRETION OF VITAMINS AND AMINO ACIDS INTO THE ENVIRONMENT BY OCHROMONAS DANICA 1, 2
Author(s) -
Aaronson S.,
DeAngelis B.,
Frank O.,
Baker H.
Publication year - 1971
Publication title -
journal of phycology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.85
H-Index - 127
eISSN - 1529-8817
pISSN - 0022-3646
DOI - 10.1111/j.1529-8817.1971.tb01505.x
Subject(s) - valine , riboflavin , biology , vitamin , biochemistry , amino acid , leucine , alanine , b vitamins , aspartic acid , biosynthesis , metabolism , enzyme , endocrinology
SUMMARY Ochromonas danica grown on a chemically defined medium under controlled conditions in the light synthesized the following vitamins: ascorbate, B 6 , N 5 ‐ methyltetrahydrofolate, tetrahydrofolate polyglutamates, oxidized folate monoglutamates, nicotinate, pantothenate, riboflavin, vitamin A, β‐carotene, and vitamin E but no vitamin. B 12 . The cells also secreted molecules into their growth medium including the vitamins ascorbate, B 6 , the above folates, nicotinate, pantothenate, riboflavin, vitamin E, and the amino acids alanine, aspartic acid, leucine, and valine. The role of such secretions in nature is discussed.