A role for brassinosteroids in light-dependent development of Arabidopsis.
Science
; 272(5260): 398-401, 1996 Apr 19.
Article
en En
| MEDLINE
| ID: mdl-8602526
ABSTRACT
Although steroid hormones are important for animal development, the physiological role of plant steroids is unknown. The Arabidopsis DET2 gene encodes a protein that shares significant sequence identity with mammalian steroid 5 alpha-reductases. A mutation of glutamate 204, which is absolutely required for the activity of human steroid reductase, abolishes the in vivo activity of DET2 and leads to defects in light-regulated development that can be ameliorated by application of a plant steroid, brassinolide. Thus, DET2 may encode a reductase in the brassinolide biosynthetic pathway, and brassinosteroids may constitute a distinct class of phytohormones with an important role in light-regulated development of higher plants.
Buscar en Google
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Reguladores del Crecimiento de las Plantas
/
Proteínas de Plantas
/
Esteroides Heterocíclicos
/
Colestanoles
/
Genes de Plantas
/
Arabidopsis
/
Proteínas de Arabidopsis
Límite:
Animals
/
Humans
Idioma:
En
Revista:
Science
Año:
1996
Tipo del documento:
Article
País de afiliación:
Estados Unidos