Monolignol radical-radical coupling networks in western red cedar and Arabidopsis and their evolutionary implications.
Phytochemistry
; 61(3): 311-22, 2002 Oct.
Article
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| MEDLINE
| ID: mdl-12359517
ABSTRACT
The discovery of a nine-member multigene dirigent family involved in control of monolignol radical-radical coupling in the ancient gymnosperm, western red cedar, suggested that a complex multidimensional network had evolved to regulate such processes in vascular plants. Accordingly, in this study, the corresponding promoter regions for each dirigent multigene member were obtained by genome-walking, with Arabidopsis being subsequently transformed to express each promoter fused to the beta-glucuronidase (GUS) reporter gene. It was found that each component gene of the proposed network is apparently differentially expressed in individual tissues, organs and cells at all stages of plant growth and development. The data so obtained thus further support the hypothesis that a sophisticated monolignol radical-radical coupling network exists in plants which has been highly conserved throughout vascular plant evolution.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Arabidopsis
/
Lignanos
/
Thuja
/
Evolución Biológica
Idioma:
En
Revista:
Phytochemistry
Año:
2002
Tipo del documento:
Article
País de afiliación:
Estados Unidos