The Arabidopsis 1-aminocyclopropane-1-carboxylate synthase gene 1 is expressed during early development

The temporal and spatial expression of one member of the Arabidopsis 1-aminocyclopropane-1-carboxylate (ACC) synthase gene family (ACS1) was analyzed using a promoter-beta-glucuronidase fusion. The expression of ACS1 is under developmental control both in shoot and root. High expression was observed...

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Bibliographic Details
Published in:The Plant cell 1993-08, Vol.5 (8), p.897-911
Main Authors: Rodrigues-Pousada, R.A, Rycke, R. de, Dedonder, A, Caeneghem, W. van, Engler, G, Montagu, M. van, Straeten, D. van der
Format: Article
Language:English
Subjects:
ACTIVIDAD ENZIMATICA
ACTIVITE ENZYMATIQUE
ADN RECOMBINADO
ADN RECOMBINE
ARABIDOPSIS THALIANA
Auxins
BIOSINTESIS
BIOSYNTHESE
Developmental biology
ETAPAS DE DESARROLLO DE LA PLANTA
Ethylene production
EXPRESION GENICA
EXPRESSION DES GENES
GENE
GENES
GLICOSIDASAS
GLYCOSIDASE
Hypocotyls
Leaves
LIASAS
LUMIERE
LUZ
LYASE
OBSCURIDAD
OBSCURITE
Oxidases
OXIDORREDUCTASAS
OXYDOREDUCTASE
Plant cells
Plant roots
Plants
PLANTULAS
PLANTULE
PRODUCCION DE ETILENO
PRODUCTION D'ETHYLENE
RACINE
RAICES
Seedlings
STADE DE DEVELOPPEMENT VEGETAL
SUBSTANCE DE CROISSANCE VEGETALE
SUSTANCIAS DE CRECIMIENTO VEGETAL
TALLO
TIGE
TRANSFORMACION GENETICA
TRANSFORMATION GENETIQUE
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Summary:The temporal and spatial expression of one member of the Arabidopsis 1-aminocyclopropane-1-carboxylate (ACC) synthase gene family (ACS1) was analyzed using a promoter-beta-glucuronidase fusion. The expression of ACS1 is under developmental control both in shoot and root. High expression was observed in young tissues and was switched off in mature tissues. ACS1 promoter activity was strongly correlated with lateral root formation. Dark-grown seedlings exhibited a different expression pattern from light-grown ones. The ACC content and the in vivo activity of ACC oxidase were determined. ACC content correlated with ACS1 gene activity. ACC oxidase activity was demonstrated in young Arabidopsis seedlings. Thus, the ACC formed can be converted into ethylene. In addition, ethylene production of immature leaves was fourfold higher compared to that of mature leaves. The possible involvement of ACS1 in influencing plant growth and development is discussed
ISSN:1040-4651
1532-298X
DOI:10.1105/tpc.5.8.897