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논문 기본 정보

자료유형
학술저널
저자정보
Jin Rong (China/Key Laboratory of Sweetpotato Biology and Genetic Breeding Ministry of Agriculture) Kim Ho Soo (Korea Research Institute of Bioscience and Biotechnology) Yu Tao (Liaoning Academy of Agricultural Sciences Shenyang China) Liu Ming (Xuzhou Sweetpotato Research Center Xuzhou Institute of Agricultural Sciences Jiangsu China/Key Lab) Yu Wenhui (School of Life Sciences Jiangsu Normal University Xuzhou China) Zhao Peng (Xuzhou Sweetpotato Research Center Xuzhou Institute of Agricultural Sciences Jiangsu China/Key Lab) Zhang Aijun (Xuzhou Sweetpotato Research Center Xuzhou Institute of Agricultural Sciences Jiangsu China/Key Lab) Zhang Qiangqiang (Xuzhou Sweetpotato Research Center Xuzhou Institute of Agricultural Sciences Jiangsu China/Key Lab) Liu Yaju (Xuzhou Sweetpotato Research Center Xuzhou Institute of Agricultural Sciences Jiangsu China/Key Lab) Cao Qinghe (Xuzhou Sweetpotato Research Center Xuzhou Institute of Agricultural Sciences Jiangsu China/Key Lab) Kwak Sang-Soo (Korea Research Institute of Bioscience and Biotechnology) Tang Zhonghou (Xuzhou Sweetpotato Research Center Xuzhou Institute of Agricultural Sciences Jiangsu China/Key Lab)
저널정보
한국식물생명공학회 Plant Biotechnology Reports Plant Biotechnology Reports 제16권 제1호
발행연도
2022.2
수록면
91 - 100 (10page)
DOI
10.1007/s11816-021-00730-0

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Sweetpotato is an important crop that is very sensitive to low temperatures. Mitogen-activated protein kinase (MAPK) is involved in plant growth and development and is responsive to many environmental stresses. IbMPK3 is strongly regulated by low-temperature stress. We studied the function of IbMPK3 and how it may enhance the adaptability of sweetpotato plants to low-temperature stress. Transgenic sweetpotato plants overexpressing IbMPK3 were generated, and three trans- genic lines with the highest expression level of IbMPK3 were used for low-temperature tests. Transgenic plants exposed to low-temperature stress had less damage associated with higher photosynthesis efficiency and less cell membrane damage. IbMPK3-overexpressing transgenic plants could modulate reactive oxygen species (ROS) metabolism with lower levels of O2? and H2O2 accumulation and higher enzymatic activities than WT plants. Transcript expression levels of some ROS- related genes (IbCAT, IbCu-ZnSOD, and IbCAT) and stress-responsive genes (IbP3B and IbCOR27) were significantly upregulated in transgenic plants compared to WT. These results indicate that IbMPK3 has an important role in sweetpotato response to low temperatures.

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