Antibiotic activities of peptides, hydrogen peroxide and peroxynitrite in plant defence
2001; Wiley; Volume: 498; Issue: 2-3 Linguagem: Inglês
10.1016/s0014-5793(01)02456-5
ISSN1873-3468
AutoresFrancisco García‐Olmedo, Pablo Rodríguez‐Palenzuela, Antonio Molina, Josefa M. Alamillo, Emilia López‐Solanilla, Marta Berrocal‐Lobo, César Poza‐Carrión,
Tópico(s)Transgenic Plants and Applications
ResumoGenes encoding plant antibiotic peptides show expression patterns that are consistent with a defence role. Transgenic over‐expression of defence peptide genes is potentially useful to engineer resistance of plants to relevant pathogens. Pathogen mutants that are sensitive to plant peptides in vitro have been obtained and a decrease of their virulence in planta has been observed, which is consistent with their hypothetical defence role. A similar approach has been followed to elucidate the potential direct anti‐microbial role of hydrogen peroxide. Additionally, a scavenger of peroxynitrite has been used to investigate its involvement in plant defence.
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