After bacterial infection pathogens can induce different types of plant defense responses. Recently we have investigated an early type of local induced resistance (EIR). EIR is induced by both pathogenic and non-pathogenic bacteria, and is not accompanied by plant cell death (HR), but can inhibit bacterial pathogens. We have found that plant peroxidase isoenzymes were activated some hours after bacterial inoculation in tobacco. A peroxidase gene, which activated during EIR was cloned. It was proved to be a peroxidase tpoxN1, which had previously cloned from tobacco mosaic virus (TMV) infected tobacco leaves. The transcription of tpoxN1 gene was induced both by incompatible and saprophytic and was blocked by compatible Pseudomonas spp. and was slightly induced by water infiltration. The appearance of peroxidase proteins and its transcription activation may be a useful marker for detailed study of EIR.
|Number of pages||3|
|Journal||Acta Biologica Szegediensis|
|Publication status||Published - Jan 1 2002|
- Induced resistance
- Pseudomonas ssp.
ASJC Scopus subject areas
- Biochemistry, Genetics and Molecular Biology(all)
- Agricultural and Biological Sciences(all)