BeNa Culture Collection
info@bncc.com
| Subculture procedure | ① Prepare 1-2 plates as above; ② Disinfect ampoule surface, open in safety cabinet, cauterize top with alcohol lamp, then rapidly add sterile water to rupture. Crush contents with forceps; ③ Pipette 0.5mL sterile water into lyophilized tube. Thoroughly dissolve powder, then dispense 200μL/well onto plates, spreading evenly; ④ Incubate plates under specified conditions until colonies emerge. |
| Growth conditions | 30°C; 24-48h; aerobic |
| Storage conditions | 2-8°C |
| Safety level | 2 |
| morphology | Colony diameter: 1-2 mm; circular shape with neat, opaque edges; milky white upper surface; central convexity; smooth, glossy surface; moist texture; Gram-positive (blue-violet); cocci; purity: pure |
| Sharing mode | Public welfare sharing |
Cryptococcus neoformans
Storage conditions: 2~8 ℃
No.: 339771
Product format: freeze dried, 200ul
Validity period: 6 years
Biosafety level: 1 , handle in ultra-clean table or safety cabinet
Receiving notice: if any abnormality is found on the day of receipt, please contact the customer service within 24 hours. If it is overdue, it is deemed that the bacteria are well. The freeze dried culture shall be used up once and shall not be retained. The bacterial viability will resume after 1-2 generation of recovery and can be used normally. Handling instructions of agar slant and suspension liquid is enclosed. Please operate in strict accordance with this instruction, otherwise the replacement of bacteria are not be available in case of aberrant growth and lose of viability.
Growth conditions:28 ℃, aerobic, YM medium, 18-24h. YM medium: yeast extract 3.0g, malt extract 3.0g, glucose 10.0g, peptone 5.0g, agar 20.0g, distilled water 1.0L,pH 6.2±0.2. Sterilization at 121 ℃ for 15min.
Recovery steps:
(1)Prepare a test tube containing 5-10mL of liquid culture medium and 2 plates;
(2)Open it in the biosafety cabinet, heat the tip of ampoule in a flame, quickly drop sterile water to creak it, then break it with forceps;
(3)Draw 0.5mL of liquid culture medium into a freeze dried ampoule, fully rehydrate and transfer the solution to the liquid test tube, mix evenly;
(4)Inoculate a plate with 0.2mL of suspension liquid, repeat the step to obtain two plates;
(5)Put all the liquid test tubes and plates under the above culture conditions for cultivation, and the strains can be used when they grow.
Recovery record: According to the recovery instructions, the results of the recovery are reported as follows:

| item | test result |
| viability | good viability, in 18h liquid medium become turbid, obvious strain layer occurs on the plate; colony is typical on marked plate |
| colony morphology: (above) |
size: 2-4mm shape: round edge: neat transparency: opaque Color: milky white uplift: middle raised surface: smooth and bright texture: moist and easy to stir |
| conclusion | good viability, no abnormal colony morphology, qualified |
Cryptococcus neoformans(Cryptococcus neoformans)
354893
Cryptococcus neoformans(Cryptococcus neoformans)
339771
Cryptococcus neoformans(Cryptococcus neoformans)
359878
Cryptococcus neoformans(Cryptococcus neoformans)
225501
Cryptococcus neoformans(Cryptococcus neoformans)
359875
Cryptococcus neoformans(Cryptococcus neoformans)
356067