- 品牌:联祖
- 产地:进口、国产
- 货号:LZJ6516
- 发布日期: 2021-01-11
- 更新日期: 2024-11-15
产地 | 进口、国产 |
品牌 | 联祖 |
货号 | LZJ6516 |
用途 | 公司产品仅用于科研 |
包装规格 | 株 |
纯度 | % |
CAS编号 | |
是否进口 | 是 |
资源名称 No designation
种属: Capsaspora owczarzaki│Hertel et al.
分离基物: Biomphalaria glabrata, Corvallis, OR, 1977
提供形式: frozen
安全等级: 1
模式菌株: no
应用领域: Renamed as Capsaspora owczarzaki based on SSU rRNA analysis. RefHertel LA, et al. The symbiont Capsaspora owczarzaki, nov. gen. nov. sp., isolated from three strains of the pulmonate snail Biomphalaria glabrata is related to members of the Mesomycetozoea. Int. J. Parasitol. 32: 1183-1191, 2002. PubMed: 12117501
培养基: Medium 1034: Modified PYNFH medium (Available from ATCC as ATCC cat. no. 327-X) ATCC® Medium 803: M7 medium
生长条件: Temperature: 25°C
Culture System: Axenic
存储条件: Frozen Cultures:-70°C for 1 week; liquid N2 vapor for long term storageFreeze-dried Cultures:2-8°CLive Cultures:See Protocols section for handling information;Harvest and Preservation Harvest cells from a culture that is at or near peak density by centrifugation at 800-900 x g for 5 min. Pool the cell pellets into a single tube. Adjust the concentration of cells to 2.0 x 107/mL. If the concentration is too low, centrifuge at 800-900 x g for 5 minutes and resuspend the cell pellet with a volume of supernatant to yield the desired concentration. Prepare a 15% (v/v) sterile DMSO solution in ATCC medium 1034 as follows: Add the required volume of DMSO to a glass screw-capped test tube and place on ice. Allow the DMSO to solidify. Add the required volume of refrigerated ATCC medium 1034. Dissolve the DMSO by inverting several times. If the DMSO solution is not prepared on ice, an exothermic reaction will occur that may precipitate certain components of the medium. Mix the cell preparation and the DMSO in equal portions. Thus, the final concentration will be 107 and 7.5% (v/v) DMSO. The time from the mixing of the cell preparation and cryoprotective solution to the start of the freezing process should be no less than 15 min. and no more than 60 min. Dispense in 0.5 mL aliquots into 1.0 - 2.0 mL sterile plastic screw-capped cryules (special plastic vials for cryopreservation). Place the vials in a controlled rate freezing unit. Use the following cooling cycle: From room temperature cool at -10°C/min to the heat of fusion; from the heat of fusion to -40°C, cool at -1°C/min. At -40°C plunge into liquid nitrogen. The cooling cycle should be initiated no less than 15 and no more than 30 minutes after the addition of DMSO to the cell preparation. The frozen preparations are stored in either the vapor or liquid phase of a nitrogen refrigerator. To establish a culture from the frozen state place an ampule in a water bath set at 35°C. Immerse the vial enough to cover only the frozen material. Do not agitate the vial. Immediately after thawing, do not leave in the water bath, aseptically remove the entire contents of the vial and transfer to a T-25 flask containing 10 mL ATCC Medium 1034 with serum increased to 30%. Incubate the flask horizontally at 25°C with the cap screwed on tightly.
实验内容:
1.称量→溶化→调pH→过滤→分装→加塞→包扎→灭菌→无菌检查
2.干热灭菌:装入待灭菌物品→升温→恒温→降温→开箱取物
3.高压蒸汽灭菌:加水→装物品→加盖→加热→排冷空气→加压→恒压→降压回零→排汽→取物→无菌检查
4.过滤除菌:组装灭菌→连接→压滤→无菌检查→清洗灭菌
保存方法:
传代保存法:培养基的浓度不宜过高,营养成分不宜过于丰富,尤其是碳水化合物的浓度应在可能的范围内尽量降低。培养温度通常以稍低于最适生长温度为好。若为产酸菌种,则应在培养基中添加少量碳酸钙 。
液体石蜡覆盖保存法:该法较前一种方法保存菌种的时间更长,适用于霉菌、酵母菌、放线菌及需氧细菌等的保存。
悬液保存法:
① 蒸馏水保存法:适用于霉菌、酵母菌及绝大部分放线菌,将其菌体悬浮于蒸馏水中即可在室温下保存数年。本法应注意避免水分的蒸发。
② 糖液保存法:适用于酵母菌,如将其菌体悬浮于10%的蔗糖溶液中,然后于冷暗处保存,可长达10年。除此之外,也可使用缓冲液或食盐水等进行保存。
载体保存法:①土壤保存法;②砂土保存法;③硅胶保存法;④磁珠保存法;⑤麸皮保存法;⑥纸片(滤纸)保存法。
三羟甲基氨基甲烷,500g Pranoprofen 规格:HPLC>97%,标准品
双[三(羟甲基)氨基甲烷],100g Pranlukast hemihydrate
双[三(羟甲基)氨基甲烷],25g Pranlukast 规格:≥98%,BR
双[三(羟甲基)氨基甲烷],500g Pramlintide Acetate 规格:纯度≥98.0%
双[三(羟甲基)氨基丙烷],100g Pramipexole Base 规格:>98.5%
双[三(羟甲基)氨基丙烷],25g Pramipexole Base 规格:HPLC>98%,标准品
双[三(羟甲基)氨基丙烷],5g Pramipexole 2HCL monohydrate 规格:>99%,EP6.8
三羟甲基氨基甲烷盐酸盐,100g Pramipexole 2HCL monohydrate 规格:HPLC>98%,标准品
三羟甲基氨基甲烷盐酸盐,1kg Praeruptorin E 规格:HPLC≥98%,标准品
β-丙氨酸甲酯盐酸盐,25g FTIBAMZONE 规格:UV法含量测定
β-丙氨酸甲酯盐酸盐,5g FTase Substrate, Fluorogenic 规格:>98%,进分
L-天冬氨酸二甲酯盐酸盐,25g Fructose 1,6-bisphosphate,3sodium salt 规格:98-101.0%,BR
L-天冬氨酸二甲酯盐酸盐,5g Fructose 1,6-bisphosphate, 3sodium salt 规格:98-101.0%,BR"
L-天冬氨酸-β-甲酯盐酸盐,1g Fructose 规格:HPLC≥98%,标准品
L-天冬氨酸-β-甲酯盐酸盐,25g FRIEDELIN 规格:鉴别
L-天冬氨酸-β-甲酯盐酸盐,5g FRIEDELAN-3BETA-OL 规格:鉴别
L-组氨酸甲酯二盐酸盐,100g Fraxinellone 规格:HPLC≥98%,标准品
L-组氨酸甲酯二盐酸盐,25g Fraxin 规格:HPLC≥98%,标准品
No designation 同猪病毒2型猪巨细胞病毒PCR检测试剂盒 Porcine Cytomegalovirus (PCMV,2)PCR规格:20支用途:用于副溶血性弧菌生化鉴定
猪PCR检测试剂盒 Porcine Delta Coronavirus(PDCV)DELTARTPCR规格:30μg/片,20片/瓶拉属名:Aztreonam(AZT)
猪内源性逆转录病毒前病毒PCR检测试剂盒 Porcine Endogenous Retrovirus(PERV) Provirus PCR规格:1ml/支*5用途:取一支添加于200ml亚硫铁多粘菌素B琼脂中
猪内源性逆转录病毒PCR检测试剂盒 Porcine Endogenous Retrovirus(PERV)RTPCR规格:50个/包*4用途:用于样品的取样采集。
猪肠道杯状病毒PCR检测试剂盒 Porcine Enteric Calicivirus(PECV)RTPCR规格:10ml*20支/包用途:用于大肠菌群、大肠杆菌的测定
微生物菌种的培养:
⒈ 孢子制备
⑴ 放线菌孢子的制备
一般采用琼脂斜面培养基,培养基中含有一些适合产孢子的营养成分,如麸皮、豌豆浸汁、蛋白胨和一些无机盐等。碳源和氮源不要太丰富(碳源约为1%,氮源不超过0.5%),碳源丰富容易造成生理酸性的营养环境,不利于放线菌孢子的形成,氮源丰富则有利于菌丝繁殖而不利于孢子形成。一般情况下,干燥和限制营养可直接或间接诱导孢子形成。放线菌斜面的培养温度大多数为28 ℃,少数为37 ℃,培养时间为5~14天。
⑵ 霉菌孢子的制备
霉菌的孢子培养,一般以大米、小米、玉米、麸皮、麦粒等天然农产品为培养基。这是由于这些农产品中的营养成分较适合霉菌的孢子繁殖,而且这类培养基的表面积较大,可获得大量的孢子。霉菌的培养一般为25~28 ℃,培养时间为4~14天。
⒉ 种子制备
⑴ 摇瓶种子制备
摇瓶种子进罐,常采用母瓶、子瓶两级培养,有时母瓶种子也可以直接进罐。种子培养基要求比较丰富和完全,并易被菌体分解利用,氮源丰富有利于菌丝生长。原则上各种营养成分不宜过浓,子瓶培养基浓度比母瓶略高,更接近种子罐的培养基配方。
⑵ 种子罐种子制备
种子罐种子制备的工艺过程,因菌种不同而异,一般可分为一级种子、二级种子和三级种子的制备。孢子(或摇瓶菌丝)被接入到体积较小的种子罐中,经培养后形成大量的菌丝,这样的种子称为一级种子,把一级种子转入发酵罐内发酵,称为二级发酵。如果将一级种子接入体积较大的种子罐内,经过培养形成更多的菌丝,这样制备的种子称为二级种子,将二级种子转入发酵罐内发酵,称为三级发酵。同样道理,使用三级种子的发酵,称为四级发酵。