Agrobacterium rhizogenes mediated genetic transformation resulting in hairy root formation is enhanced by ultrasonication and acetosyringone treatment
Electron. j. biotechnol
; 9(4)July 2006. ilus, tab, graf
Artigo
em Inglês
| LILACS
| ID: lil-451655
Biblioteca responsável:
CL1.1
ABSTRACT
The phytopathogenic bacteria Agrobacterium rhizogenes genetically transforms plants by transferring a portion of the resident Ri plasmid, the T-DNA to the plant. Plant species differ in their temporal competence for transformation. But various physical and chemical methods are found to enhance transformation frequency. Agrobacterium rhizogenes mediated transformation efficiency was assessed under the influence of sonication, calcium treatment, acetosyringone and macerating enzymes in suitable combinations in Nicotiana tabacum as a model system. Manual wounding resulted in 21 percent transformation frequency. Where as sonication resulted in 2.2 fold increase, followed by sonication with CaCl2 treatment resulted in 2.5 fold increase and sonication with acetosyringone treatment resulted in 4.1 fold increase in transformation frequency. However, sonication with macerating enzyme treatment resulted in 1.5 to 5.25-fold decrease in transformation frequency. Micro wounding through sonication followed by acetosyringone treatment enhanced transformation frequency substantially. The results of this study may be very useful in genetic manipulation of plants by Agrobacterium rhizogenes mediated gene delivery to higher plants, which are recalcitrant to A. tumefaciens mediated genetic manipulation.
Texto completo:
Disponível
Coleções:
Bases de dados internacionais
Base de dados:
LILACS
Tipo de estudo:
Guia de prática clínica
Idioma:
Inglês
Revista:
Electron. j. biotechnol
Assunto da revista:
Biotecnologia
Ano de publicação:
2006
Tipo de documento:
Artigo
País de afiliação:
Índia
Instituição/País de afiliação:
Central Food Technological Research Institute/IN