Peroxisomal ATP-binding cassette transporter COMATOSE and the multifunctional protein abnormal INFLORESCENCE MERISTEM are required for the production of benzoylated metabolites in Arabidopsis seeds.
Plant Physiol
; 164(1): 48-54, 2014 Jan.
Article
en En
| MEDLINE
| ID: mdl-24254312
Secondary metabolites derived from benzoic acid (BA) are of central importance in the interactions of plants with pests, pathogens, and symbionts and are potentially important in plant development. Peroxisomal ß-oxidation has recently been shown to contribute to BA biosynthesis in plants, but not all of the enzymes involved have been defined. In this report, we demonstrate that the peroxisomal ATP-binding cassette transporter COMATOSE is required for the accumulation of benzoylated secondary metabolites in Arabidopsis (Arabidopsis thaliana) seeds, including benzoylated glucosinolates and substituted hydroxybenzoylcholines. The ABNORMAL INFLORESCENCE MERISTEM protein, one of two multifunctional proteins encoded by Arabidopsis, is essential for the accumulation of these compounds, and MULTIFUNCTIONAL PROTEIN2 contributes to the synthesis of substituted hydroxybenzoylcholines. Of the two major 3-ketoacyl coenzyme A thiolases, KAT2 plays the primary role in BA synthesis. Thus, BA biosynthesis in Arabidopsis employs the same core set of ß-oxidation enzymes as in the synthesis of indole-3-acetic acid from indole-3-butyric acid.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Semillas
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Arabidopsis
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Transportadoras de Casetes de Unión a ATP
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Ácido Benzoico
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Proteínas de Arabidopsis
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Complejos Multienzimáticos
Idioma:
En
Revista:
Plant Physiol
Año:
2014
Tipo del documento:
Article
País de afiliación:
Australia
Pais de publicación:
Estados Unidos