Journal of Plant Physiology, ( ISI ), Volume (168), No (7), Year (2011-7) , Pages (1114-1122)

Title : ( A survey on basal resistance and riboflavin-induced defense responses of sugarbeet against Rhizoctonia solani )

Authors: Parissa Taheri , Saeed Tarighi ,

Access to full-text not allowed by authors

Citation: BibTeX | EndNote

Abstract

We examined basal defense responses and cytomolecular aspects of riboflavin-induced resistance (IR) in sugar beet-Rhizoctonia solani pathsystem by investigating H2O2 burst, phenolics accumulation and analyzing the expression of phenylalanine ammonia-lyase (PAL) and peroxidase (cprx1) genes. Riboflavin was capable of priming plant defense responses via timely induction of H2O2 production and phenolics accumulation. A correlation was found between induction of resistance by riboflavin and upregulation of PAL and cprx1 which are involved in phenylpropanoid signaling and phenolics metabolism. Application of peroxidase and PAL inhibitors suppressed not only basal resistance, but also riboflavin-IR of sugar beet to the pathogen. Treatment of the leaves with each inhibitor alone or together with riboflavin reduced phenolics accumulation which was correlated with higher level of disease progress. Together, these results demonstrate the indispensability of rapid H2O2 accumulation, phenylpropanoid pathway and phenolics metabolism in basal defense and riboflavin-IR of sugar beet against R. solani.

Keywords

, Beta vulgaris Oxidative burst Peroxidase Phenylalanine ammonia, lyase Rhizoctonia diseases
برای دانلود از شناسه و رمز عبور پرتال پویا استفاده کنید.

@article{paperid:1021923,
author = {Taheri, Parissa and Tarighi, Saeed},
title = {A survey on basal resistance and riboflavin-induced defense responses of sugarbeet against Rhizoctonia solani},
journal = {Journal of Plant Physiology},
year = {2011},
volume = {168},
number = {7},
month = {July},
issn = {0176-1617},
pages = {1114--1122},
numpages = {8},
keywords = {Beta vulgaris Oxidative burst Peroxidase Phenylalanine ammonia-lyase Rhizoctonia diseases},
}

[Download]

%0 Journal Article
%T A survey on basal resistance and riboflavin-induced defense responses of sugarbeet against Rhizoctonia solani
%A Taheri, Parissa
%A Tarighi, Saeed
%J Journal of Plant Physiology
%@ 0176-1617
%D 2011

[Download]