Theobroxide Treatment Inhibits Wild Fire Disease Occurrence in Nicotiana benthamiana by the Overexpression of Defense-related Genes

Title
Theobroxide Treatment Inhibits Wild Fire Disease Occurrence in Nicotiana benthamiana by the Overexpression of Defense-related Genes
Author(s)
윤해근안순영백광현문용선
Keywords
PATHOGENESIS-RELATED PROTEINS; GLUTATHIONE-S-TRANSFERASE; SYSTEMIC ACQUIRED-RESISTANCE; RACE-SPECIFIC ELICITORS; JASMONIC ACID; CLADOSPORIUM-FULVUM; METHYL JASMONATE; OXIDATIVE BURST; NATURAL-PRODUCT; SALICYLIC-ACID
Issue Date
201303
Publisher
KOREAN SOC PLANT PATHOLOGY
Citation
PLANT PATHOLOGY JOURNAL, v.29, no.1, pp.110 - 115
Abstract
Theobroxide, a novel compound isolated from a fungus Lasiodiplodia theobromae, stimulates potato tuber formation and induces flowering of morning glory by initiating the jasmonic acid synthesis pathway. To elucidate the effect of theobroxide on pathogen resistance in plants, Nicotiana benthamiana plants treated with theobroxide were immediately infiltrated with Pseudomonas syringae pv. tabaci. Exogenous application of theobroxide inhibited development of lesion symptoms, and growth of the bacterial cells was significantly retarded. Semi-quantitative RT-PCRs using the primers of 18 defense-related genes were performed to investigate the molecular mechanisms of resistance. Among the genes, the theobroxide treatment increased the expression of pathogenesis-related protein 1a (PR1a), pathogenesis-related protein 1b (PR1b), glutathione S-transferase (GST), allen oxide cyclase (AOC), and lipoxyganase (LOX). All these data strongly indicate that theobroxide treatment inhibits disease development by faster induction of defense responses, which can be possible by the induction of defense-related genes including PR1a, PR1b, and GST triggered by the elevated jasmonic acid.
URI
http://hdl.handle.net/YU.REPOSITORY/26254http://dx.doi.org/10.5423/PPJ.NT.08.2012.0131
ISSN
1598-2254
Appears in Collections:
자연자원대학 > 원예생명과학과 > Articles
생명공학부 > 생명공학부 > Articles
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