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著者 | Asano T., Hakata M., Nakamura H., Aoki N., Komatsu S., Ichikawa H., Hirochika H., Ohsugi R. | |
タイトル | Functional characterisation of OsCPK21, a calcium-dependent protein kinase that confers salt tolerance in rice. | |
Abstract: Calcium acts as a messenger in various signal transduction pathways in plants. Calcium-dependent protein kinases (CDPKs) play important roles in regulating downstream components in calcium signaling pathways. In rice, the CDPKs constitute a large multigene family consisting of 29 genes, but the biological functions and functional divergence or redundancy of most of these genes remain unclear. Using a mini-scale full-length cDNA overexpressor (FOX) gene hunting system, we generated 250 independent transgenic rice plants overexpressing individual rice CDPKs (CDPK FOX-rice lines). These CDPK FOX-rice lines were screened for salt stress tolerance. The survival rate of the OsCPK21-FOX plants was higher than that of wild-type (WT) plants grown under high salinity conditions. The inhibition of seedling growth by abscisic acid (ABA) treatment was greater in the OsCPK21-FOX plants than in WT plants. Several ABA- and high salinity-inducible genes were more highly expressed in the OsCPK21-FOX plants than in WT plants. These results suggest that OsCPK21 is involved in the positive regulation of the signaling pathways that are involved in the response to ABA and salt stress. |
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掲載誌 | Plant Mol. Biol. | |
Country | Japan | |
刊数 | 75(1) | |
ページ | 179-191 | |
発刊年 | 2011 | |
PubMed ID | 21136139 | |
PubMed Central ID | - | |
DOI | 10.1007/s11103-010-9717-1 | |
URL | - | |
関連情報 | ||
遺伝子 | BZIP23 CDPK13 CDPK21 LEA3-1 NAC6 NHX1 P5CS RAB16A SOS1 | |
INSD | - | |
系統 |
野生イネ コアコレクション |
- |
突然変異系統(遺伝研 Collection) | - | |
種子不稔系統 | - | |
致死変異体系統 | - | |
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 | - |