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| 著者 | Nanda S., Wan P.J., Yuan S.Y., Lai F.X., Wang W.X., Fu Q. | |
| タイトル | Differential Responses of <i>OsMPK</i>s in IR56 Rice to Two BPH Populations of Different Virulence Levels. | |
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Abstract: The conserved mitogen-activated protein kinase (MAPK) cascades play vital roles in plant defense responses against pathogens and insects. In the current study, the expression profiles of 17 <i>OsMPK</i>s were determined in the TN1 and IR56 rice varieties under the infestation of brown planthopper (BPH), one of the most destructive hemimetabolous rice pests. The virulent IR56 BPH population (IR56-BPH) and the avirulent TN1 BPH population (TN-BPH) were used to reveal the roles of <i>OsMPK</i>s in the compatible (IR56-BPH infested on the TN1 and IR56 rice varieties, and TN1-BPH infested on the TN1 rice variety) and the incompatible (TN1-BPH infested on the IR56 rice variety) interaction. The statistical analysis revealed that rice variety, BPH population type, and infestation period have significant effects on the transcription of <i>OsMPK</i>s. Out of these genes, five <i>OsMPK</i>s (<i>OsMPK1</i>, <i>OsMPK3</i>, <i>OsMPK7</i>, <i>OsMPK14</i>, and <i>OsMPK16</i>) were found to exhibit upregulated expression only during incompatible interaction. Six <i>OsMPK</i>s (<i>OsMPK4</i>, <i>OsMPK5</i>, <i>OsMPK8</i>, <i>OsMPK9</i>, <i>OsMPK12</i>, and <i>OsMPK13</i>) were associated with both incompatible and compatible interactions. The transcription analysis of salicylic acid, jasmonic acid, and ethylene phytohormone signaling genes revealed their roles during the rice⁻BPH interactions. The upregulated expression of <i>OsC4H</i>, <i>OsCHS</i>, and <i>OsCHI</i> in the incompatible interaction implied the potential defense regulatory roles of phenylpropanoids. In both varieties, the elevated transcript accumulations of <i>OsGST</i> and <i>OsSOD</i>, and the increased enzyme activities of POD, SOD, and GST at 1 day post-infestation (dpi), but not at 3 dpi, indicated that reactive oxygen species (ROS) signaling might be an early event in rice⁻BPH interactions. Furthermore, upregulated transcription of <i>OsLecRK3</i> and <i>OsLecRK4</i> was found only during an incompatible interaction, suggesting their involvement in the BPH resistance response in the IR56 rice variety. Lastly, based on the findings of this study, we have proposed a model of interactions of IR56 rice with TN1-BPH and IR56-BPH that depicts the resistance and susceptibility reactions, respectively. |
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| 掲載誌 | Int J Mol Sci | |
| Country | China | |
| 刊数 | 19(12) | |
| ページ | ||
| 発刊年 | 2018 | |
| PubMed ID | 30551584 | |
| PubMed Central ID | 6320944 | |
| DOI | 10.3390/ijms19124030 | |
| URL | - | |
| 関連情報 | ||
| 遺伝子 | ACS2 AOS1 AOS2 BWMK1 C4H2 CHI3 CHS DSG1 EDS1 EIN2 ERF3 GSTF5 LOX1 MAP3 MAPK4 MPK6 MPK7 MPK9 MSRMK2 NH1 PAL1 RLCK135 RLCK136 WJUMK1 _ _ _ _ | |
| INSD | - | |
| 系統 |
野生イネ コアコレクション |
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| 突然変異系統(遺伝研 Collection) | - | |
| 種子不稔系統 | - | |
| 致死変異体系統 | - | |
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組織別発生段階 - 突然変異系統(遺伝子) |
- | |
| 栽培イネ品種(遺伝研 Collection) | - | |
| 組織別発生段階 | - | |
