| Preparation of Knockdown Transformants of Unicellular Charophycean Alga, Closterium peracerosum-strigosum-littorale Complex
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Author:
Date:
2016-05-20
[Abstract] To prepare the knockdown transformants of the Closterium peracerosum-strigosum-littorale (C. psl.) complex, particle bombardment was applied with a newly constructed vector (pSA0104) with an endogenous constitutive promoter fused to a DNA fragment corresponding to an antisense strand of a target gene. Using a hygromycin resistance gene (aph7”), hygromycin-resistant colonies were selected. After the second screening, integration of the vector into the genome was checked by PCR and the knockdown effect was evaluated by Western blotting using a specific antibody against the target protein.
[摘要] 为了制备鬼臼藓藻（Clonsterium peracerosum-strigosum-littorale）复合物的敲低转化体，用新构建的载体（pSA0104）应用粒子轰击，所述载体具有内源性 组成型启动子，其与对应于靶基因的反义链的DNA片段融合。 使用潮霉素抗性基因（ aph7"）选择潮霉素抗性菌落。 在第二次筛选后，通过PCR检查载体到基因组中的整合，并使用针对靶蛋白的特异性抗体通过蛋白质印迹评估敲低效应。
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| Vacuole Structure Analysis during Cell Death Subsequent to Application of Erwinia carotovora Culture Filtrates to Cell Cultures of Nicotiana tabacum
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Author:
Date:
2015-10-20
[Abstract] We recently established an experimental model system for efficient defense-related cell death using tobacco BY-2 cultured cells treated with culture filtrates of the pathogenic bacterium Erwinia carotovora (E. carotovora) (Hirakawa et al., 2015). Applying this experimental system to transgenic BY-2 cells stably expressing the vacuolar membrane marker GFP-VAM3 (Kutsuna and Hasezawa, 2002) allowed us to monitor changes in vacuolar membrane structures including a decrease of transvacuolar strands during cell death (Hirakawa et al., 2015). Our model system can help to investigate organelle dynamics in defense-related cell death. Here, we show protocol for applying E. carotovora filtrates to BY-2 cells and confocal observation of vacuolar membrane ...
[摘要] 我们最近建立了使用烟草BY-2培养细胞的有效防御相关细胞死亡的实验模型系统，所述培养细胞用致病性细菌欧文氏菌（Erwinia carotovora）（ E。carotovora （Hirakawa ，，2015）。将该实验系统应用于稳定表达液泡膜标记物GFP-VAM3的转基因BY-2细胞（Kutsuna和Hasezawa，2002），使我们能够监测液泡膜结构的变化，包括细胞死亡期间跨血管链的减少（Hirakawa et al。 al。，2015）。我们的模型系统可以帮助调查细胞器动力学在国防相关的细胞死亡。在这里，我们显示应用 E的协议。 carotovora过滤到BY-2细胞和共聚焦观察液泡膜动力学和随后的细胞死亡。我们使用细胞周期同步的BY-2细胞来有效地监测内陷的液泡膜，例如在我们最近的报告中的跨血管链（Hirakawa等人，2015）;然而，我们不描述本文中的细胞周期同步的协议。对于BY-2细胞同步的逐步方案，请参考先前的方案论文（Nagata和Kumagai，1999; Kumagai-Sano等人，2006）。
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