Expression of signalling and defence-related genes mediated by over-expression of JERF1, and increased resistance to sheath blight in rice

文献类型： 外文期刊

第一作者： Li, Y.

作者： Li, Y.;Liu, W.;Ming, J.;Liu, S.;Li, X.;Zhang, H.;Huang, R.

作者机构：

关键词： Defence-related genes;expression;JERF1;rice;sheath blight;signalling

期刊名称：PLANT PATHOLOGY （ 影响因子：2.59； 五年影响因子：2.924 ）

ISSN：

年卷期：

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收录情况： SCI

摘要： Sheath blight (SB) is one of the most destructive rice diseases that affect the yield and quality of rice. Jasmonate and Ethylene Response Factor 1, designated ]ERF1, can be induced by ethylene, methyl jasmonate (MeJA), abscisic acid (ABA) and salt stress. Previous research demonstrated that over-expression of JERF1 enhanced drought tolerance by regulating the expression of stress-related genes in rice. The present study reports that JERF1 could improve SB resistance of transgenic rice. At the molecular and physiological levels, JERF1 could up-regulate the expression of signalling and defence-related genes and increase the activities of lipoxygenase (LOX) and phenylalanine ammonia lyase (PAL). Analysis of cis-elements showed that there were several DRE/CRT (dehydration-responsive element/C-repeat) and/or GCC boxes in the promoters of these candidate genes, indicating that JERF1 might regulate the expression of defence-related genes via interaction with these cis-elements. These results suggest that JERF1 might improve SB resistance by modulating the expression of defence-related genes. This may prove to be a useful strategy for genetic engineering to improve SB resistance using transcription factor genes in rice.

分类号： S432.1

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