Antibiotic activities of peptides, hydrogen peroxide and peroxynitrite in plant defence

FEBS Letters

Alamillo, Josefa M¹  Berrocal-Lobo, Marta¹  Garcı́a-Olmedo, Francisco¹  Poza-Carrión, César¹  López-Solanilla, Emilia¹  Molina, Antonio¹  Rodrı́guez-Palenzuela, Pablo¹ 

[1] Departamento de Biotecnologı́a - UPM, ETS Ingenieros Agrónomos, E-28040 Madrid, Spain

关键词: Innate immunity;    Active oxygen;    Nitrogen species;    Plant disease resistance;    Cell death;    Urate;    Plant–microbe interaction;    LPS;    lipopolysaccharide;    LTP;    lipid transfer protein;    AOS;    active oxygen species;   

DOI  :  10.1016/S0014-5793(01)02456-5

学科分类：生物化学/生物物理

来源: John Wiley & Sons Ltd.

【 摘 要 】

Genes 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.

【 授权许可】

Unknown