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再鬧不給糖新蟲 (正式寫手)
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[求助]
誰會做GV3101感受態(tài),求教。! 已有1人參與
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| 本人新手,現(xiàn)需要做GV3101感受態(tài),求教程,謝謝!! |
實驗技術(shù)、方法交流 |

銀蟲 (正式寫手)

專家顧問 (職業(yè)作家)
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專家經(jīng)驗: +426 |
| One tube of Agrobacterium (GV3101PMP90) was cultured as seed in 20 ml LB medium with Rifampicin (50 mg/l) and Gentamycin (20 mg/l). The seed culture were incubated at 28 °C 180 rpm overnight. Then added the seed culture into 500 ml LB medium with Rifampicin (50 mg/l) and Gentamycin (20 mg/l) and cultured for around 5 h at 28 °C until the OD600 was 0.5-0.7. Before harvesting the cells at 4000 g (Multifuge 3 S-R, Heraeus), 5 min, 4 °C, they were incubated for 10 min on ice. All the following steps were performed on ice as well. Cells were washed by resuspension in 100 ml pre-cooled sterile 150 mM NaCl and spined down at 4000 g, 5 min, 4 °C. The cell pellet was resuspended in 10 ml pre-cooled sterile 20 mM CaCl2. After that, the Agrobacterium were aliquoted (200 ml) into Eppendorf tubes by filling them quickly with a multipette. The aliquots were stored at -80 °C. |

新蟲 (著名寫手)
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