Biodegradation of the indolic system of gramine in Hordeum vulgare

Intact Hordeum vulgare seedlings degraded [2-14C]gramine, [2-14C]indole-3-carboxaldehyde and [2-14C]indole-3-carboxylic acid to 14CO2. The plants also degraded [6-3H]gramine to labelled water. Moreover, [2-14C, 6-3H]gramine is degraded to 3H2O through tritium-labelled anthranilic acid. These results...

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Detalles Bibliográficos
Autores principales: Ghini, A.A., Burton, G., Gros, E.G.
Formato: JOUR
Materias:
barley
biodegradation
Gramineae
Hordeum vulgare
[2-14C]gramine
[2-14C]indole-3-carboxaldehyde
[2-14C]indole-3-carboxylic acid
[6-3H]gramine.
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00319422_v30_n3_p779_Ghini
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
Descripción
Sumario:Intact Hordeum vulgare seedlings degraded [2-14C]gramine, [2-14C]indole-3-carboxaldehyde and [2-14C]indole-3-carboxylic acid to 14CO2. The plants also degraded [6-3H]gramine to labelled water. Moreover, [2-14C, 6-3H]gramine is degraded to 3H2O through tritium-labelled anthranilic acid. These results point to a breakdown of the aromatic system of gramine by successive steps involving indole-3-carboxylic acid, N-formylanthranilic acid and anthranilic acid which then follows its known degradation pathway. The last steps of the process proceed at a very fast rate. © 1992.

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