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您的检索式：作者名="Huhui Chen"
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| 1 | The Expression of Manganese Superoxide Dismutase Gene from Nelumbo nucifera Responds Strongly to Chilling and Oxidative Stresses显示文摘A manganese superoxide dismutase(Mn-SOD) gene,NnMSD1,was identified from embryonic axes of the sacred lotus(Nelumbo nucifera Gaertn.) . The NnMSD1 protein contains all conserved residues of the Mn-SOD protein family,including four consensus metal binding domains and a signal peptide for mitochondrial targeting. Southern blot analysis suggests the existence of two Mn-SOD genes in sacred lotus. NnMSD1 was highly expressed in developing embryonic axes during seed development,but appeared in cotyledons only at the early stage of development and became undetectable in the cotyledons during late embryogenesis. The expression of the NnMSD1 gene in germinating embryonic axes,in response to various stresses such as heat shock,chilling,and exposure to stress-related chemicals,was also studied. Heat shock strongly inhibited the expression of the NnMSD1 gene,whereas the NnMSD1 transcript level increased strongly in chilling stress treatment. An increase in expression was also highly induced by H2O2 in germinating embryonic axes. The results suggest that the expression pattern of the NnMSD1 gene differed between developing axes and cotyledons,and that the NnMSD1 gene expression responds strongly to chilling and oxidative stress. | Wen Li Lin Qi Xiaodong Lin Huhui Chen Zhanqi Ma Keqiang Wu Shangzhi Huang | 2009 | Journal of Integrative Plant Biology2009，51，3： | 6 |
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