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| 著者 | Hu P., Tan Y., Wen Y., Fang Y., Wang Y., Wu H., Wang J., Wu K., Chai B., Zhu L., Zhang G., Gao Z., Ren D., Zeng D., Shen L., Xue D., Qian Q., Hu J. | |
| タイトル | <i>LMPA</i> Regulates lesion mimic Leaf and Panicle Development Through ROS-Induced PCD in Rice. | |
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Abstract: Leaf and panicle are important nutrient and yield organs in rice, respectively. Although several genes controlling lesion mimic leaf and panicle abortion have been identified, a few studies have reported the involvement of a single gene in the production of both the traits. In this study, we characterized a panicle abortion mutant, <i>lesion mimic leaf and panicle apical abortion</i> (<i>lmpa</i>), which exhibits lesions on the leaf and causes degeneration of apical spikelets. Molecular cloning revealed that <i>LMPA</i> encodes a proton pump ATPase protein that is localized in the plasma membrane and is highly expressed in leaves and panicles. The analysis of promoter activity showed that the insertion of a fragment in the promoter of <i>lmpa</i> caused a decrease in the transcription level. Cellular and histochemistry analysis indicated that the ROS accumulated and cell death occurred in lmpa. Moreover, physiological experiments revealed that <i>lmpa</i> was more sensitive to high temperatures and salt stress conditions. These results provide a better understanding of the role of <i>LMPA</i> in panicle development and lesion mimic formation by regulating ROS homeostasis. |
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| 掲載誌 | Front Plant Sci | |
| Country | China | |
| 刊数 | 13 | |
| ページ | 875038 | |
| 発刊年 | 2022 | |
| PubMed ID | 35586211 | |
| PubMed Central ID | 9108926 | |
| DOI | 10.3389/fpls.2022.875038 | |
| URL | - | |
| 関連情報 | ||
| 遺伝子 | CATA CATB LMPA NOE1 REP2 VPE2 | |
| 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 | - | |
