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To improve the expression efficiency of exogenous genes in Chlamydomonas reinhardtii,a high efficient expression vector was constructed.Green fluorescent protein(GFP) was expressed in C.reinhardtii under the control of promoters:RBCS2 and HSP70A-RBCS2.Efficiency of transformation and expression were compared between two transgenic algae:RBCS2 mediated strain Tran-Ⅰ and HSP70A-RBCS2 mediated strain Tran-Ⅱ.Results show that HSP70A-RBCS2 could improve greatly the transformation efficiency by approximately eightfold of RBCS2,and the expression efficiency of GFP in Tran-Ⅱ was at least double of that in Tran-Ⅰ.In addition,a threefold increase of GFP in Tran-Ⅱwas induced by heat shock at 40°C.All of the results demonstrated that HSP70A-RBCS2 was more efficient than RBCS2 in expressing exogenous gene in C.reinhardtii. 相似文献
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To improve the expression efficiency of exogenous genes in Chlamydomonas reinhardtii, a high efficient expression vector was constructed. Green fluorescent protein (GFP) was expressed in C. reinhardtii under the control of promoters: RBCS2 and HSP70A-RBCS2. Efficiency of transformation and expression were compared between two transgenic algae: RBCS2 mediated strain Tran-Ⅰ and HSP70A-RBCS2 mediated strain Tran-Ⅱ. Results show that HSP70A-RBCS2 could improve greatly the transformation efficiency by approximately eightfold of RBCS2, and the expression efficiency of GFP in Tran-Ⅱ was at least double of that in Tran-Ⅰ. In addition, a threefold increase of GFP in Tran-Ⅱ was induced by heat shock at 40℃. All of the results demonstrated that HSP70A-RBCS2 was more efficient than RBCS2 in expressing exogenous gene in C. reinhardtii. 相似文献
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