Functions of amine oxidases in plant development and defence

Copper amine oxidases and flavin-containing amine oxidases catalyse the oxidative de-amination of polyamines, which are ubiquitous compounds essential for cell growth and proliferation. Far from being only a means of degrading cellular polyamines and, thus, contributing to polyamine homeostasis, ami...

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Bibliographic Details
Published in:Trends in plant science 2006-02, Vol.11 (2), p.80-88
Main Authors: Cona, Alessandra, Rea, Giuseppina, Angelini, Riccardo, Federico, Rodolfo, Tavladoraki, Paraskevi
Format: Article
Language:English
Subjects:
Adaptation, Physiological
amine oxidase (copper-containing)
Amine Oxidase (Copper-Containing) - physiology
amine oxidase (flavin-containing)
biochemical pathways
Biological and medical sciences
disease resistance
Fundamental and applied biological sciences. Psychology
hydrogen peroxide
Monoamine Oxidase - physiology
oxidation
Oxidation-Reduction
plant biochemistry
Plant Development
Plant Diseases
plant growth
Plant growth. Development of the storage organs
plant physiology
Plant physiology and development
Plants - enzymology
Plants - immunology
polyamines
Polyamines - metabolism
Reactive Oxygen Species
signal transduction
stress tolerance
Symbiosis
Vegetative apparatus, growth and morphogenesis. Senescence
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Summary:Copper amine oxidases and flavin-containing amine oxidases catalyse the oxidative de-amination of polyamines, which are ubiquitous compounds essential for cell growth and proliferation. Far from being only a means of degrading cellular polyamines and, thus, contributing to polyamine homeostasis, amine oxidases participate in important physiological processes through their reaction products. In plants, the production of hydrogen peroxide (H 2O 2) deriving from polyamine oxidation has been correlated with cell wall maturation and lignification during development as well as with wound-healing and cell wall reinforcement during pathogen invasion. As a signal molecule, H 2O 2 derived from polyamine oxidation mediates cell death, the hypersensitive response and the expression of defence genes. Furthermore, aminoaldehydes and 1,3-diaminopropane from polyamine oxidation are involved in secondary metabolite synthesis and abiotic stress tolerance.
ISSN:1360-1385
1878-4372
DOI:10.1016/j.tplants.2005.12.009