The antifungal Dm-AMP1 protein from Dahlia merckii expressed in Solanum melongena is released in root exudates and differentially affects pathogenic fungi and mycorrhizal symbiosis

•  Transformed aubergine plants constitutively expressing the Dm-AMP1 antimicrobial defensin (from Dahlia merckii) were generated and characterized. •  Transgenic plants were selected on kanamycin and screened by polymerase chain reaction analysis. The expression of Dm-AMP1 in plant tissues and its...

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Veröffentlicht in:The New phytologist. - 1979. - 163(2004), 2 vom: 20. Aug., Seite 393-403
1. Verfasser: Turrini, A (VerfasserIn)
Weitere Verfasser: Sbrana, C, Pitto, L, Ruffini Castiglione, M, Giorgetti, L, Briganti, R, Bracci, T, Evangelista, M, Nuti, M P, Giovannetti, M
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2004
Zugriff auf das übergeordnete Werk:The New phytologist
Schlagworte:Journal Article Botrytis cinerea Solanum melongena Verticillium albo-atrum arbuscular mycorrhizal fungi defensin transformed plants
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245 1 4 |a The antifungal Dm-AMP1 protein from Dahlia merckii expressed in Solanum melongena is released in root exudates and differentially affects pathogenic fungi and mycorrhizal symbiosis 
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520 |a •  Transformed aubergine plants constitutively expressing the Dm-AMP1 antimicrobial defensin (from Dahlia merckii) were generated and characterized. •  Transgenic plants were selected on kanamycin and screened by polymerase chain reaction analysis. The expression of Dm-AMP1 in plant tissues and its release in root exudates were detected by Western blot analyses. Dm-AMP1 localization was performed by immunohistochemical experiments. •  Dm-AMP1 expression ranged from 0.2% to 0.48% of total soluble proteins in primary transformants and from 0.16% to 0.66% in F2 plants. Transformed clones showed resistance to the pathogenic fungus Botrytis cinerea, whose development on leaves was reduced by 36-100%, with respect to controls. The protein was released in root exudates of the transformed plants and was active in reducing the growth of the co-cultured pathogenic fungus Verticillium albo-atrum, whereas it did not interfere with recognition responses and symbiosis establishment by the arbuscular mycorrhizal fungus Glomus mosseae. •  Dm-AMP1 transformants may represent a useful model to study the interactions between genetically modified plants and pathogenic fungi or beneficial nontarget microorganisms 
650 4 |a Journal Article 
650 4 |a Botrytis cinerea 
650 4 |a Solanum melongena 
650 4 |a Verticillium albo-atrum 
650 4 |a arbuscular mycorrhizal fungi 
650 4 |a defensin 
650 4 |a transformed plants 
700 1 |a Sbrana, C  |e verfasserin  |4 aut 
700 1 |a Pitto, L  |e verfasserin  |4 aut 
700 1 |a Ruffini Castiglione, M  |e verfasserin  |4 aut 
700 1 |a Giorgetti, L  |e verfasserin  |4 aut 
700 1 |a Briganti, R  |e verfasserin  |4 aut 
700 1 |a Bracci, T  |e verfasserin  |4 aut 
700 1 |a Evangelista, M  |e verfasserin  |4 aut 
700 1 |a Nuti, M P  |e verfasserin  |4 aut 
700 1 |a Giovannetti, M  |e verfasserin  |4 aut 
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