In Darkness
- In Darkness的基本解释
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[电影]黑暗弥漫, 无光岁月
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Culture tender leaves in culture medium of MS+2,4-D1.5mg/L+30g/L suger+0.7% agar pH5.8 for 20 days in darkness at 25℃, and then subculture to induced Ⅱ-type calli. Use forceps cutting the tissue to nubble with 2mm2, and put the tissue into Agrodacterium tumefaciens LBA4404 liquid supplemented with AS 100mg/L,then, co-culture 3 days, resume 7 days in MS+2,4-D1.5mg/L+30g/L suger+500mg/L cef, take to MS+2,4-D1.5mg/L+30g/L suger+100mg/L cef+10.0mg/L kanamycin culture 20 days in darkness. After that to make it polarize in MS+30g/L suger+100mg/L cef+10.0mg/L km. The percentage of km resistant callus was reached max after infection for 45 min, the average is 29.66%. Simultaneity, tender leave callus are infected 5 min by A. tumefaciens liquid in different negative pressure, and kept on 15 min in Agrodacterium tumefaciens liquid without negative pressure. Then screen out resistant callus and obtain transgenic plants. When the negative pressure is -0.05MP the percentage of km resistant callus was reached max, the average rate is 37.5%.
将心叶接种于MS+2.4-D1.5mg/L+30g/L 蔗糖,琼脂0.7%,pH5.8 培养基中25℃暗培养20d 后继代一次,诱导产生Ⅱ型胚性愈伤组织,用镊子将其夹碎成2mm2大小的小块,置入添加100mg/L AS 的根癌农杆菌LBA4404 菌液中,侵染时间为45min,共培养3 天后,转入MS+2.4-D1.5mg/L+30g/L 蔗糖+500mg/L Cef 培养基中恢复7天,再转入MS+2.4-D1.5mg/L+30g/L 蔗糖+100mg/L Cef+10.0mg/L Km 中,遮光培养20d后,置入其MS+30g/L 蔗糖+100mg/L Cef+10.0mg/L Km 分化,卡那霉素抗性愈伤组织获得率在侵染45min 时达到最大值平均为29.66%;同时以甘蔗心叶愈伤组织材料,通过循环水式真空泵,产生负压,设定不同的负压值,在农杆菌菌液中感染5min 后,在负压条件下继续侵染15min 后,筛选出抗性愈伤组织并获得转化植株,其中在负压为-0.05 时转化率达到最大值,其卡那霉素抗性愈伤组织获得率平均为37.5%。
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Effect of recovery methods after thawing After thawing, the highest viability was obtained when beads of Pavlova viridis were incubated in culture medium for 48h in darkness at room temperature. As to other two algae,the suitable recovery method was to incubate beads over saturated NaCl solution in a closed jar for 12h in darkness at room temperature.
化冻后恢复方法的影响化冻后,绿色巴夫藻的胶球在培养基中室温下暗放置48h后存活率最高;另两种金藻在含有过饱和的NaCl溶液(75%RH)的密闭气相中室温下暗放置12h存活率最高。
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Factors that influence percentage of transformation including time of preculture, dipping and coculture, type and content of antibiotic, day of delayed selection culture, intension of selection were studied. The effective transformation system of "Starkrimson" was developed as follow: Leaves precultured in darkness for three days were dipped into agrobacterium suspension for three minutes, then were cocultured in darkness on MS medium with TDZ0.5mg/L and NAA 0.3mg/L for three days, and then cultured in darkness on MS medium with TDZ0.5mg/L NAA0.3mg/L and Cef 250mg/L.
通过对叶片预培养时间、侵染时间、共培养时间、抑菌素种类和浓度、延时筛选时间、不同选择压等遗传转化影响因素的研究,建立的'新红星'苹果遗传转化体系为:叶片黑暗预培养3天,经农杆菌侵染3分钟,在含TDZ0.5mg/L,NAA0.3mg/L的MS培养基上黑暗共培养3天,然后加250mg/L Cef黑暗维持培养3天,再进行Km12.5mg/L的选择压黑暗培养至抗性愈伤出现;转为光照条件1-2次的继代筛选,获得抗性芽后,进行扩繁。
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e.g. vanish in darkness from sight:在黑暗中消失不见
3. vanish vi. 消失, 突然不见 | e.g. vanish in darkness from sight在黑暗中消失不见 | e.g. accelerate a car / economic recovery 加快车速 / 加速经济复苏
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vanish in darkness:在黑暗中消失
22.vary v. 变化,改变;使多样化 | vanish in darkness在黑暗中消失 | vanish into nothing化为乌有
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Soul loafs which in darkness:(在黑暗中游荡的灵魂)
Why can't I see you in where? (为什么我看不见你在何方) | Soul loafs which in darkness (在黑暗中游荡的灵魂) | Is any only then may enable you to obtain rests? (是什么才可以使你得到安息)