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微信小章| 产品名称： | Perkinsus sp. |
|---|---|
| 商品货号： | TS141336 |
| Deposited As： | Perkinsus chesapeaki McLaughlin et al. |
| Strain Designations： | CRMA-J44 |
| Biosafety Level： | 2
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： | labial palp of clam, Mya arenaria, Choptank River Estuary, MD, 2000 |
| Product Format： | frozen |
| Type Strain： | no |
| Medium： | ATCC® Medium 1886: Perkinsus broth medium |
| Growth Conditions： | Temperature: 25.0°C Duration: axenic |
| Cryopreservation： | 1.xa0xa0 Harvest cells from several cultures which are in logarithmic to late stationary phase of growth.xa0 Vigorously agitate to suspend the cells. 2.xa0xa0 Aseptically transfer the cell suspension to 15 ml plastic centrifuge tubes. 3.xa0xa0 Centrifuge at 200 x g for 5 min. 4.xa0xa0 While cells are centrifuging, prepare a 20% solution of DMSO in ATCC Medium 1886. 5.xa0xa0 Remove the supernatant and pool the cell pellets into a final volume of 4.5 ml. 6.xa0xa0 Combine the cell suspension with an equal volume of 20% DMSO cryoprotectant solution (prepared in step 4) to yield a final concentration of 10% DMSO. 7.xa0xa0 Dispense in 0.5 ml aliquots to 1.0-2.0 ml Nunc vials (special plastic vials for cryopreservation). 8.xa0xa0 Place the vials in a controlled rate freezing unit.xa0 From room temperature cool at -1°C/min to -40°C.xa0 At -40°C, plunge ampules into liquid nitrogen. 9.xa0xa0 Store ampules in a liquid nitrogen refrigerator until needed. 10.xa0xa0xa0xa0xa0xa0xa0xa0xa0 To establish a culture from the frozen state, place a frozen ampule in a 35°C water bath just enough to cover the frozen material.xa0 Allow the ampule to thaw completely (2-3 min). 11.xa0xa0xa0xa0xa0xa0xa0xa0xa0 Immediately after thawing, aseptically remove the contents and transfer to a T-25 tissue culture flask containing 10 ml of fresh ATCC medium 1886. 12.Screw the cap on tightly and incubate at 25°C.xa0 Observe the culture daily.xa0 Transfer the culture when many trophozoites are observed.xa0xa0xa0xa0xa0xa0xa0xa0xa0 |
| Mycoplasma： | No |
| Name of Depositor： | C Dungan |
| Special Collection： | NSF - Protistology |
| Chain of Custody： | ATCC < |
| Year of Origin： | 2000 |
| References： | Dungan CF, et al. Two epizootic diseases in Chesapeake Bay commercial clams, Mya arenaria and Tagelus plebeius. Dis. Aquat. Org. 50: 67-78, 2002. PubMed: 12152906 Christopher Dungan, personal communication |