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- 详细信息
- 文献和实验
- 技术资料
- 英文名:
MycoLight™ Bacterial Viability Assay Kit
- 库存:
MycoLight细菌活力检测试剂盒
- 供应商:
MycoLight™ Bacterial Viability Assay Kit
- 规格:
200T
货号:22400
规格:200T
Mycolight 细菌活力检测试剂盒提供革兰氏阳性和阴性细菌细胞中细菌活力的双色荧光检测。该试剂盒使用我们的绿色荧光核酸染色MycoLight Green和红色荧光核酸染色碘化丙啶的混合物。单独使用时,MycoLight Green染色剂通常标记人群中的所有细菌(活的和死的)。相比之下,碘化丙锭仅渗透膜受损的细菌,当存在两种染料时,导致MycoLight Green染色荧光减少。因此,使用MycoLight Green和碘化丙锭染料的适当混合物,具有完整细胞膜的活细菌发出绿色荧光,而具有受损膜的死亡或垂死细菌产生红色荧光。 Mycolight 细菌活力检测试剂盒是一种强大的工具,用于监测细菌群体的活力,作为细胞膜完整性的函数。可以在510-530nm(FITC滤光器)和600-660nm(德克萨斯红色滤光器)下荧光测量染色细胞,激发波长为常见的激发光源488nm。
适用仪器
| 流式细胞仪 | |
| Ex: | 488 nm |
| Em: | 530/30 nm, 610/20 nm |
| 通道: | FITC, PE-Texas Red 通道 |
| 荧光显微镜 |
|
| Ex: | 510/600 nm |
| Em: | 530/660 nm |
| 推荐孔板: | 黑色透明底板 |
| 通道: | FITC/Texas Red 通道 |
操作方法
溶液配制
染料工作溶液(250X):
在微量离心管中加入等体积的MycoLight Green(组分A)和碘化丙啶(组分B)并充分混合。 注意:每次准备新鲜的工作溶液。
样品实验方案
1.在任何适当的培养基中培养细菌从对数期培养物中获得健康细菌的结果。在0.85%NaCl或适当的缓冲液中将细菌培养物稀释至~106至108个细胞/ mL。准备足够的悬浮液,为流式细胞仪每次测试提供500μL,或为96孔板提供每次测试100μL。注意:在染色细菌之前去除生长培养基的痕迹。单次洗涤步骤通常足以从细菌悬浮液中除去显着痕量的干扰介质组分。建议不要使用磷酸盐清洗缓冲液,因为它们会降低染色效率。
2.向每mL细菌悬浮液中加入4μL染料工作溶液(250X)。充分混合并在室温下孵育15分钟。避光。
3.可以通过荧光显微镜,荧光酶标仪或流式细胞术分析染色的细菌细胞。
4.来自活细菌和死细菌的荧光可以与任何标准荧光素长通滤光片组同时观察。或者,可以用荧光素和德克萨斯红过滤器组分别观察活的(绿色荧光的)和死的(红色荧光的)细胞。
数据分析

图1.用MycoLight™ 细菌活力检测试剂盒(Cat#22400)染色的大肠杆菌HST08的荧光图像。 具有完整细胞膜的活细菌显示绿色荧光(左),而具有受损膜的70%酒精杀死的死细菌(右)显示红色荧光。 活的和死的大肠杆菌细菌细胞也在混合群体中可视化(中)。
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文献和实验参考文献
Applicability of LIVE/DEAD BacLight stain with glutaraldehyde fixation for the measurement of bacterial abundance and viability in rainwater
Authors: Hu, W.; Murata, K.; Zhang, D.
Journal: J Environ Sci (China) (2017): 202-213
the BacLight Live/Dead viability assay and other vital dyes
Authors: Karkashan, A.; Khallaf, B.; Morris, J.; Thurbon, N.; Rouch, D.; Smith, S. R.; Deighton, M., Comparison of methodologies for enumerating and detecting the viability of Ascaris eggs in sewage sludge by standard incubation-microscopy
Journal: Water Res (2015): 533-44
Determination of the effects of medium composition on the monochloramine disinfection kinetics of Nitrosomonas europaea by the propidium monoazide quantitative PCR and Live/Dead BacLight methods
Authors: Wahman, D. G.; Schrantz, K. A.; Pressman, J. G.
Journal: Appl Environ Microbiol (2010): 8277-80
Monochloramine disinfection kinetics of Nitrosomonas europaea by propidium monoazide quantitative PCR and Live/dead BacLight methods
Authors: Wahman, D. G.; Wulfeck-Kleier, K. A.; Pressman, J. G.
Journal: Appl Environ Microbiol (2009): 5555-62
Assessment and interpretation of bacterial viability by using the LIVE/DEAD BacLight Kit in combination with flow cytometry
Authors: Berney, M.; Hammes, F.; Bosshard, F.; Weilenmann, H. U.; Egli, T.
Journal: Appl Environ Microbiol (2007): 3283-90
Evaluation of the LIVE/DEAD BacLight kit for detection of extremophilic archaea and visualization of microorganisms in environmental hypersaline samples
Authors: Leuko, S.; Legat, A.; Fendrihan, S.; Stan-Lotter, H.
Journal: Appl Environ Microbiol (2004): 6884-6
LIVE/DEAD BacLight : application of a new rapid staining method for direct enumeration of viable and total bacteria in drinking water
Authors: Boulos, L.; Prevost, M.; Barbeau, B.; Coallier, J.; Desjardins, R.
Journal: J Microbiol Methods (1999): 77-86
LIVE/DEAD® Violet Viability/Vitality Kit
viability and cell vitality depends on these physical and biochemical properties of the cells. As cells die, variations in fluorescence will be observed. 实验试剂 Table 1. Contents and storage information
Methods to Identify and Characterize Inhibitors of Bacterial RNA Polymerase
clinical use as antibiotics. Herein we describe a scintillation proximity assay (SPA) for identifying and characterizing inhibitors of bacterial RNA polymerases and that is applicable to de novo drug discovery programs through application of automated high
Combined 3C-ChIP-Cloning (6C) Assay: A Tool to Unravel Protein-Mediated Genome Architecture
Plasmid DNA Purification Kit (Invitrogen) This kit is designed to yield high amounts of high-quality DNA from 96 different plasmids in the least amount of time, facilitating the simultaneous growth of several bacterial colonies and large-scale
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