Encyclopedia of Metalloproteins

2013 Edition
| Editors: Robert H. Kretsinger, Vladimir N. Uversky, Eugene A. Permyakov

Silicon-Mediated Pathogen Resistance in Plants

Reference work entry
DOI: https://doi.org/10.1007/978-1-4614-1533-6_454

Synonyms

Definition

Silicon-mediated pathogen resistance in plants refers to an increase in resistance to pathogen and improvement in plant health by silicon amendment. When attacked by plant diseases, silicon treatment may increase Si accumulation and deposition in leaves to form a cuticle-Si double layer to impede pathogen’s penetration, and Si also can induce the biochemical defense responses of host and even prime the defense capacity of plant to reduce disease incidence.

Introduction

Silicon (Si) is the second most prevalent mineral element in soil following oxygen and comprises approximately 28% of the earth’s crust (Epstein 1994). Plants uptake Si through the roots in the form of monosilicic acid [Si(OH)4], at a typical concentration of 0.1–0.6 mM in soil water. Once absorbed by the roots, Si is translocated to the shoot via xylem and deposited in the form of amorphous silica (SiO 2-nH 2O) throughout...

Keywords

Silicon Biotic stress Pathogen Induced resistance Signal transduction 
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Notes

Acknowledgments

The study is financially supported by grants from the National Key Basic Research Funds of China (2011CB100400), Natural Science Foundation of China (31070396), and Doctoral Fund of Ministry of Education of China (20094404110007).

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Copyright information

© Springer Science+Business Media New York 2013

Authors and Affiliations

  1. 1.Institute of Tropical and Subtropical Ecology, South China Agricultural UniversityGuangzhouChina