Wheat ROP proteins modulate defense response through lignin metabolism
文献类型：期刊论文
| 作者 | Ma, Qing-Hu; Zhu, Hai-Hao; Han, Jia-Qi |
| 刊名 | PLANT SCIENCE
 |
| 出版日期 | 2017 |
| 卷号 | 262页码:32-38 |
| 关键词 | ROP proteins Lignin metabolism Phytophthora parasitica Pseudomonas solanacearum Disease resistance Wheat |
| ISSN号 | 0168-9452 |
| DOI | 10.1016/j.molp.2016.12.006 |
| 文献子类 | Article |
| 英文摘要 | ROP is a subfamily of small GTP-binding proteins that uniquely exist in plants. It acts as versatile molecular switches that regulate various developmental processes. Some ROP proteins are also reported to affect defense responses, although their exact mechanism is not fully understood. Herein, ROP members in wheat were mined; the functions of three wheat ROP proteins were studied. RT-PCR results showed that the expression of TaRacl was rapidly and strongly induced after leaf rust infection. TaRacl interacted with TaCCR in yeast-hybridization assay. The overexpression of TaRacl in tobacco promoted CCR and CAD gene expression, increased the total lignin content and sinapyl lignin proportion, and then enhanced resistance to tobacco black shank and bacterial wilt diseases. In contrast, TaRac3 and TaRac4 did not show to interact with TaCCR. Furthermore, the over expression of TaRac3 and TaRac4 did not increase lignin gene expression and lignin accumulation either. Unlike TaRacl, the overexpression of TaRac3 increased susceptibility to both black shank and bacterial wilt pathogens, while overexpression of TaRac4 showed no effect on disease resistance but promoted the root growth in tobacco seedling. These data collectively suggest that TaRacl in Group II is mainly involved in regulating lignin metabolism which, in turn, responsible for the observed roles in pathogen resistance. TaRac3 and TaRac4 have the minor roles in defense response but may act on regulation in plant developmental processes. These results shed light on the complexity and diverse function of ROP in plant defense pathway. |
| 学科主题 | Biochemistry & Molecular Biology ; Plant Sciences |
| 出版地 | CLARE |
| WOS关键词 | SMALL GTPASE RAC ; RICE INNATE IMMUNITY ; NADPH OXIDASE ; MEDICAGO-TRUNCATULA ; DISEASE RESISTANCE ; SCLEROTINIA-SCLEROTIORUM ; ARABIDOPSIS-THALIANA ; ROP/RAC GTPASE ; POWDERY MILDEW ; RAC/ROP GTPASE |
| 语种 | 英语 |
| WOS记录号 | WOS:000396358200015 |
| 出版者 | ELSEVIER IRELAND LTD |
| 资助机构 | National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31370336] ; Natural Science Foundation of BeijingBeijing Natural Science Foundation [5122024] |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/22126]  |
| 专题 | 中科院北方资源植物重点实验室 |
| 作者单位 | 1.Zhu, Hai-Hao 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Bot, Key Lab Plant Resources, Beijing 100093, Peoples R China 4.[Ma, Qing-Hu |
| 推荐引用方式 GB/T 7714 | Ma, Qing-Hu,Zhu, Hai-Hao,Han, Jia-Qi. Wheat ROP proteins modulate defense response through lignin metabolism[J]. PLANT SCIENCE,2017,262:32-38. |
| APA | Ma, Qing-Hu,Zhu, Hai-Hao,&Han, Jia-Qi.(2017).Wheat ROP proteins modulate defense response through lignin metabolism.PLANT SCIENCE,262,32-38. |
| MLA | Ma, Qing-Hu,et al."Wheat ROP proteins modulate defense response through lignin metabolism".PLANT SCIENCE 262(2017):32-38. |
入库方式： OAI收割
来源：植物研究所
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