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
作者: Pan, X. 1 ; Li, Y. 1 ; Zhang, H. 2 ; Huang, R. 2 ; Liu, W. 1 ; Ming, J. 1 ; Liu, S. 1 ; Li, X. 1 ;
作者机构: 1.Hunan Acad Agr Sci, Rice Res Inst, Changsha 410125, Hunan, Peoples R China
2.Chinese Acad Agr Sci, Biotechnol Res Inst, Beijing 100081, Peoples R China
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.
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