Cell Wall Amine Oxidases: New Players in Root Xylem Differentiation under Stress Conditions
| Autor: | Renato A. Rodrigues-Pousada, Alessandra Cona, Riccardo Angelini, Paraskevi Tavladoraki, Andrea Carucci, Sandip A. Ghuge, Alessandra Tisi, Stefano Franchi |
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| Přispěvatelé: | Ghuge, Sa, Tisi, A, Carucci, A, Rodrigues Pousada, Ra, Franchi, S, Tavladoraki, Paraskevi, Angelini, R, Cona, Alessandra, Angelini, Riccardo, Cona, A., Ghuge S., A, Rodrigues Pousada R., A, Franchi, Stefano |
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
amine oxidases
polyamines hydrogen peroxide xylem differentiation cell wall root polyamines Cell hydrogen peroxide Plant Science Review Biology Cell wall chemistry.chemical_compound Biosynthesis Gene expression medicine Ecology Evolution Behavior and Systematics Flavin adenine dinucleotide amine oxidases Ecology Botany Xylem root Apoplast medicine.anatomical_structure chemistry Biochemistry xylem differentiation cell wall QK1-989 Polyamine |
| Zdroj: | Plants Plants, Vol 4, Iss 3, Pp 489-504 (2015) |
| ISSN: | 2223-7747 |
| Popis: | Polyamines (PAs) are aliphatic polycations present in all living organisms. A growing body of evidence reveals their involvement as regulators in a variety of physiological and pathological events. They are oxidatively deaminated by amine oxidases (AOs), including copper amine oxidases (CuAOs) and flavin adenine dinucleotide (FAD)-dependent polyamine oxidases (PAOs). The biologically-active hydrogen peroxide (H2O2) is a shared compound in all of the AO-catalyzed reactions, and it has been reported to play important roles in PA-mediated developmental and stress-induced processes. In particular, the AO-driven H2O2 biosynthesis in the cell wall is well known to be involved in plant wound healing and pathogen attack responses by both triggering peroxidase-mediated wall-stiffening events and signaling modulation of defense gene expression. Extensive investigation by a variety of methodological approaches revealed high levels of expression of cell wall-localized AOs in root xylem tissues and vascular parenchyma of different plant species. Here, the recent progresses in understanding the role of cell wall-localized AOs as mediators of root xylem differentiation during development and/or under stress conditions are reviewed. A number of experimental pieces of evidence supports the involvement of apoplastic H2O2 derived from PA oxidation in xylem tissue maturation under stress-simulated conditions. |
| Databáze: | OpenAIRE |
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