Influence of Nitrogen Source, Thiamine, and Light on Biosynthesis of Abscisic Acid by Cercospora rosicola Passerini | Zendy

Shirley M. Norman | Zendy; Vincent P. Maier | Zendy; Linda C. Echols | Zendy

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Influence of Nitrogen Source, Thiamine, and Light on Biosynthesis of Abscisic Acid by Cercospora rosicola Passerini

Author(s) -

Shirley M. Norman,

Vincent P. Maier,

Linda C. Echols

Publication year - 1981

Publication title -

applied and environmental microbiology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.552

H-Index - 324

eISSN - 1070-6291

pISSN - 0099-2240

DOI - 10.1128/aem.41.4.981-985.1981

Subject(s) - abscisic acid , biochemistry , aspartic acid , asparagine , thiamine , biosynthesis , amino acid , leucine , levulinic acid , asparagine synthetase , chemistry , biology , enzyme , catalysis , gene

Abscisic acid production by Cercospora rosicola Passerini in liquid shake culture was measured with different amino acids in combination and singly as nitrogen sources and with different amounts of thiamine in the media. Production of abscisic acid was highest with aspartic acid-glutamic acid and aspartic acid-glutamic acid-serine mixtures as nitrogen sources. Single amino acids that supported the highest production of abscisic acid were asparagine and monosodium glutamate. Thiamine was important for abscisic acid production. Leucine inhibited abscisic acid production. C. rosicola produced abscisic acid in the dark, but production more than doubled in the presence of light.

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