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Nuclearia sp.
Nuclearia sp.
規(guī)格:
貨期:
編號(hào):B227651
品牌:Mingzhoubio

標(biāo)準(zhǔn)菌株
定量菌液
DNA
RNA

規(guī)格:
凍干粉
斜面
甘油
平板


產(chǎn)品名稱 Nuclearia sp.
商品貨號(hào) B227651
Strain Designations CDC
Biosafety Level 1

Biosafety classification is based on U.S. Public Health Service Guidelines, it is the responsibility of the customer to ensure that their facilities comply with biosafety regulations for their own country.

Isolation
water sample, Atlanta, GA, 1997
Product Format frozen
Storage Conditions Frozen: -70°C or colder for 1 week, vapor phase of liquid nitrogen for long-term storage
Axenic/Xenic Xenic
Type Strain no
Medium ATCC® Medium 802: Sonneborn's Paramecium medium
Growth Conditions
Temperature: 25°C
Cryopreservation
  1. Harvest cells from a culture that is at or near peak density by centrifugation at 600 x g for 5 min. Pool the cell pellets into a single tube.
  2. Adjust the concentration of cells to 2.0 x 106/ml.  If the concentration is too low, centrifuge at 600 x g for 5 minutes and resuspend the cell pellet with a volume of supernatant to yield the desired concentration.
  3. Prepare a 20% (v/v) sterile DMSO solution in fresh medium w/o bacteria, 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 802 w/o bacteria.  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.
  4. Mix the cell preparation and the DMSO in equal portions. Thus, the final concentration will be 106 and 10% (v/v) DMSO. The time from the mixing of the cell preparation and DMSO stock solution before the freezing process is begun should be no less than 15 min and no longer than 60 min.
  5. Dispense in 0.5 ml aliquots into 1.0 - 2.0 ml sterile plastic screw-capped cryules (special plastic vials for cryopreservation).
  6. Place vials in a controlled rate freezing unit. From room temperature cool at -1°C/min to -40°C. If freezing unit can compensate for the heat of fusion, maintain rate at -1 C/min through heat of fusion. At -40°C plunge ampules into liquid nitrogen.
  7. The frozen preparations are stored in either the vapor or liquid phase of a nitrogen refrigerator.
  8. 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.
  9. Immediately after thawing, do not leave in the water bath, aseptically remove the contents of the ampule and inoculate into 5.0 ml of fresh ATCC medium 802 bacterized with Klebsiella pneumoniae subsp. pneumoniae (ATCC® 700831 or Enterobacter aerogenes (ATCC® 13048)..
  10. Incubate the tube on a 15° horizontal at 25°C with the cap screwed on tightly.

Name of Depositor TK Sawyer
Year of Origin 1997
梅經(jīng)理 17280875617 1438578920
胡經(jīng)理 13345964880 2438244627
周經(jīng)理 17757487661 1296385441
于經(jīng)理 18067160830 2088210172
沈經(jīng)理 19548299266 2662369050
李經(jīng)理 13626845108 972239479
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