Premium
Nitric Oxide Signaling in Plant‐Pathogen Interactions
Author(s) -
RomeroPuertas María,
Delledonne Massimo
Publication year - 2003
Publication title -
iubmb life
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.132
H-Index - 113
eISSN - 1521-6551
pISSN - 1521-6543
DOI - 10.1080/15216540310001639274
Subject(s) - nitric oxide , pathogen , chemistry , microbiology and biotechnology , biology , organic chemistry
Nitric oxide (NO), first characterized as an endothelium‐derived relaxation factor, is involved in diverse cellular processes including neuronal signaling, blood pressure homeostasis, and immune response. Recent studies have also revealed a role for NO as a signaling molecule in plants. As a developmental regulator, NO promotes germination, leaf extension and root growth, and delays leaf senescence and fruit maturation. Moreover, NO acts as a key signal in plant resistance to incompatible pathogens by triggering resistance‐associated hypersensitive cell death. In addition, NO activates the expression of several defense genes (e.g. pathogenesis‐related genes, phenylalanine ammonialyase, chalcone synthase) and could play a role in pathways leading to systemic acquired resistance. IUBMB Life, 55: 579‐583, 2003