| Literature DB >> 16047198 |
Scott C Schaefer1, Ksenija Gasic, Bruno Cammue, Willem Broekaert, Els J M van Damme, Willy J Peumans, Schuyler S Korban.
Abstract
Genes coding for an iris ribosomal-inactivating protein (I-RIP), a maize beta-glucanase (M-GLU), and a Mirabilis jalapa antimicrobial peptide (Mj-AMP1) were separately introduced into tomato (Lycopersicon esculentum cv. Sweet Chelsea) cotyledons via Agrobacterium tumefaciens-mediated transformation. Transgenic lines carrying each of the transgenes were confirmed for integration into the tomato genome using Southern blot hybridization. Transcription of I-RIP, M-GLU, and Mj-AMP1 genes in various transgenic lines was determined using Northern blot analysis. Plants of selected transgenic lines were inoculated with a 2-3x10(4) conidial spores/ml suspension of the fungal pathogen Alternaria solani, the causal agent of tomato early blight. Compared to control (non-transformed) plants, two transgenic lines carrying either a M-GLU or Mj-AMP1 showed enhanced resistance to early blight disease. None of the four lines carrying the I-RIP transgene showed increased resistance to early blight.Entities:
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Year: 2005 PMID: 16047198 DOI: 10.1007/s00425-005-0026-x
Source DB: PubMed Journal: Planta ISSN: 0032-0935 Impact factor: 4.116