AtchitIV gene expression is stimulated under abiotic stresses and is spatially and temporally regulated during embryo development
Genet. mol. biol
;
27(1): 118-123, 2004. ilus, graf
Artigo
em Inglês
| LILACS
| ID: lil-357888
ABSTRACT
The expression of AtchitIV gene was analysed in Arabidopsis plants submitted to abiotic stresses. Transcript accumulation was detected in leaves in response to UV light exposure, exogenous salicylic acid administration and wounding. Transgenic Arabidopsis plants carrying AtchitIV promotergus fusion also showed differential expression of the reporter gene in response to these treatments. The AtchitIV expression was also analysed during Arabidopsis embryo development. GUS assay demonstrated AtchitIV promoter activation in zygotic embryos from torpedo stage up to full maturation. Promoter deletion analysis indicated that all the 5' cis-acting elements responsible for the specific tissue expression are located in a region of 1083 bp, adjacent to the start of transcription. A negative regulatory region located between portions -1083 and -600 was also observed.
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Expressão Gênica
/
Regiões Promotoras Genéticas
/
Arabidopsis
Idioma:
Inglês
Revista:
Genet. mol. biol
Assunto da revista:
Genética
Ano de publicação:
2004
Tipo de documento:
Artigo
País de afiliação:
Brasil
Instituição/País de afiliação:
Universidade Federal do Rio de Janeiro/BR
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