Data/hora: 10/06/2024 01:28:40

Biblioteca(s): | Embrapa Mandioca e Fruticultura.
Data corrente: | 12/07/1995
Data da última atualização: | 12/07/1995
Autoria: | ASHBY, A. M.; WATSON, M. D.; SHAW, C. H.
Afiliação: | Departament of Botany, University of Durham, Durham, U.K.
Título: | A ti-plasmid determined function is responsible for chemotaxis of Agrobacterium tumefaciens towards the plant wound product acetosyringone.
Ano de publicação: | 1987
Fonte/Imprenta: | FEMS Microbiology letters v.41, p.189-192, 1987.
Idioma: | Francês
Conteúdo: | Agrobacterium tumefaciens C58C[TiB6S3] harbouring the octopine Ti-plasmid pTiB6S3, showed positive chemotaxis towards the phenolic plant wound exudante acetosyringone (AS). Maximal attraction was observed at 10 M. In cotrast, A. tumefaciens C58C lacking a Ti-plasmid, exhibited no chemotactic response to AS. However, chemotaxis did occur towards the plant phenolic vanilly alcohol, but at higher concentrations (10 M) and in both Ti-plasmid-containing and cured A. tumefaciens. These results indicate that at least one Ti-plasmid function is involved in the specific chemotactic response to AS, although chemotaxis per se is not Ti-plasmid-encoded. This correlates well with the specific induction of vir-operons media ted by this plant wound                     product.
Palavras-Chave: | (Crown gall; Acetosyringos; Ti-plasmid; vir-region).
Thesagro: | Agrobacterium Tumefaciens.
Thesaurus Nal: | chemotaxis.
Categoria do assunto: | --
Registro original: | Embrapa Mandioca e Fruticultura (CNPMF)
Exemplares: | CNPMF - (15702-1) - ADC - SP - -- -  -  - S5751 - DIS