Abstract
Jasmonates play a critical role in plant defense against pathogens through regulation of the expression of defense- related genes.To study the role of jasmonic acid (JA) in the rice self-defense mechanism, a proteomic approach was applied. When 3-week-old rice cv. Java 14 was treated with 100 μM JA for 3 days, numerous necrotic brown spots were observed on the leaf blade.Three-week-old rice was treated with JA and proteins from cytosolic and membrane fractions of leaf blade were separated by two-dimensional polyacrylamide gel electrophoresis. A total of 305 proteins were detected in both cytosolic and membrane fractions. When rice plant was treated with 100 μM JA for 2 days, 12 proteins were up-regulated and 2 proteins were down-regulated. Out of them, 8 proteins were changed in dose dependence manner, while 4 proteins were changed in a time course manner. Among them, pathogenesis-related protein 5 (PR5) and probenazole inducible protein 1 (PBZ1) were significantly induced by 100 μM JA for 2 days. These results suggest that PR5 and PBZ1 are important proteins expressed down-stream of JA signals in rice cv. Java 14.
Keywords: Jasmonic acid, proteomics, rice, defense
Protein & Peptide Letters
Title: Proteomic Analysis of Jasmonic Acid-Regulated Proteins in Rice Leaf Blades
Volume: 14 Issue: 4
Author(s): Tariq Mahmood, Makoto Kakishima and Setsuko Komatsu
Affiliation:
Keywords: Jasmonic acid, proteomics, rice, defense
Abstract: Jasmonates play a critical role in plant defense against pathogens through regulation of the expression of defense- related genes.To study the role of jasmonic acid (JA) in the rice self-defense mechanism, a proteomic approach was applied. When 3-week-old rice cv. Java 14 was treated with 100 μM JA for 3 days, numerous necrotic brown spots were observed on the leaf blade.Three-week-old rice was treated with JA and proteins from cytosolic and membrane fractions of leaf blade were separated by two-dimensional polyacrylamide gel electrophoresis. A total of 305 proteins were detected in both cytosolic and membrane fractions. When rice plant was treated with 100 μM JA for 2 days, 12 proteins were up-regulated and 2 proteins were down-regulated. Out of them, 8 proteins were changed in dose dependence manner, while 4 proteins were changed in a time course manner. Among them, pathogenesis-related protein 5 (PR5) and probenazole inducible protein 1 (PBZ1) were significantly induced by 100 μM JA for 2 days. These results suggest that PR5 and PBZ1 are important proteins expressed down-stream of JA signals in rice cv. Java 14.
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Cite this article as:
Mahmood Tariq, Kakishima Makoto and Komatsu Setsuko, Proteomic Analysis of Jasmonic Acid-Regulated Proteins in Rice Leaf Blades, Protein & Peptide Letters 2007; 14 (4) . https://dx.doi.org/10.2174/092986607780363961
DOI https://dx.doi.org/10.2174/092986607780363961 |
Print ISSN 0929-8665 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-5305 |
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