Cryptococcus neoformans|339771 |BNCC

BeNa Culture Collection

Cryptococcus neoformans-BNCC
Cryptococcus neoformans-BNCC
  • BNCC
  • Cryptococcus neoformans-BNCC
  • Cryptococcus neoformans-BNCC

Cryptococcus neoformans

  • Price: Contact
  • number:339771
  • Form:
    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
Standard strain Quantitative strain DNA extraction
Package:
Essential Information Certificate Related Products
Cryptococcus neoformans
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
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