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Department of Biology, Concordia University
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Morin, A., Moores, A. W., Sacher, M. Dissection of Saccharomyces Cerevisiae Asci. J. Vis. Exp. (27), e1146, doi:10.3791/1146 (2009).
建设二倍体菌株
通过交配生产二倍体议定书“
产孢和消化的ASCI
协议
剖析ASCI
协议
请注意,下面的协议是一个歌手的MSM系统200显微显微镜。该协议可以遵循与轻微的修改,如果使用手动显微操纵器,如蔡司显微致辞。
搬迁的受精卵
协议
代表性的成果

图1:两个相反的交配型的单倍体菌株交配产生的二倍体菌株。

图2:(A)之间的温度敏感株(用LEU2营养缺陷型)和野生型菌株(LEU2)交配THRE结果YPD板。消化细胞分布在接种地区上的两条黑线之间的厚厚的增长被认为是左。 ASCI被解剖的增长均匀分布在右边的矩阵。 (二)板(一)复制到SD -亮氨酸的辍学板。注意2:2增长LEU2表示经过验证的子囊孢子解剖的标记。 (三)板(一)被复制到YPD板,并在37 ° C孵育注意2:2的增长,进一步验证了一个子囊孢子解剖。
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酵母夹层是一个有用的工具,选择所需的标记新菌株。当确定四个子囊孢子的理论增长模式,重要的是看的营养细胞的基因型。如果一个质粒是存在的,人们必须知道,如果它是单一的,高或低复制,因为这会影响子囊孢子(S)接收的质粒,并会影响预测和结论,就被操纵的菌株。
某些菌株可以比别人在很短的时间内生产的许多子囊孢子的更好。其他菌株可能产生的子囊孢子的比例很低。这不就可以选择只要足够真实ASCI的实验有任何影响。此外,菌种不同的反应在细胞壁的消化,这是需要凭经验调整孵化时间在四分汁。
选择所需的标记的细胞,当人们应该只选择那些从一个ASCI所有子囊孢子的增长模式对应于理论的经济增长模式,从解剖所有子囊绝大多数导致预期的增长模式。
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作者们没有透露。
在作者的实验室工作的加拿大卫生研究院的创新,自然科学和工程研究理事会和康考迪亚大学,加拿大基金会的资助。
| Name | Type | Company | Catalog Number | Comments |
| Singer MSM System 200 | Microscope | Singer Instruments | NA | |
| D-sorbitol | Reagent | BioShop Canada | SOR508 | |
| Tris | Reagent | BioShop Canada | TRS001 | |
| Zymolyase 100T | Reagent | Seikagaku Corporation | 120493 | |
| Yeast extract | Reagent | BioShop Canada | YEX401 | |
| Peptone | Reagent | BioShop Canada | PEP 403 | |
| D-glucose | Reagent | BioShop Canada | GLU501 | |
| Yeast nitrogen base | Reagent | BioShop Canada | YNB406 | |
| Bio-tryptone | Reagent | BioShop Canada | TRP402 | |
| Sodium chloride | Reagent | BioShop Canada | SOD002 | |
| Potassium acetate | Reagent | BioShop Canada | POA 301 | |
| Agar | Reagent | BioShop Canada | AGR003 | |
| Adenine sulfate | Reagent | BioShop Canada | ADS201 | |
| L-uracil | Reagent | BioShop Canada | URA 241 | |
| L-tryptophan | Reagent | BioShop Canada | TRP 100 | |
| L-histidine | Reagent | BioShop Canada | HIS 200 | |
| L-arginine | Reagent | Amresco | 0877-100G | |
| L-methionine | Reagent | BioShop Canada | MET 222 | |
| L-tyrosine | Reagent | BioShop Canada | TYR 333 | |
| L-isoleucine | Reagent | BioShop Canada | ISO 910 | |
| L-valine | Reagent | BioShop Canada | VAL 201 | |
| L-lysine | Reagent | BioShop Canada | LYS 101 | |
| L-phenylalanine | Reagent | BioShop Canada | PHA 302 | |
| L-glutamic acid | Reagent | BioShop Canada | GLU 202 | |
| L-threonine | Reagent | BioShop Canada | THR002 | |
| L-leucine | Reagent | BioShop Canada | LEU 222 |