BeNa Culture Collection
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Freeze-dried: lyophilized strain, freeze dried vial, used up at one time and not be retained
| Culture medium | Liquid thioglycolate medium (FT): 15.0g of caseptone (trypsin hydrolysis), 5.0g of yeast extract, 5.0g of glucose, 0.5g of sodium thioglycolate, 0.5g of L-cystine, 2.5g of sodium chloride, 0.001g of azure, 0.75g of agar, 1.0L of distilled water and 7.1±0.2 of pH value. Sterilization at 121 ℃ for 15min. |
| Subculture procedure | (1) Prepare a test tube containing 5~10mL of liquid medium and 2 plates; (2) open it in the biosafety cabinet, heat the tip of ampoule in the flame, quickly drop sterile water to creak it, and 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. |
| Growth conditions | 37 ℃;24-48h; Anaerobic |
| Storage conditions | 2-8 ℃ |
| morphology | G-(red), bacilli, purity: pure |
| Separation substrate | Neck and face injury |
| application | Type strain; Vector test, quality control strain |
| Sharing mode | Public welfare sharing |
Fusobacterium nucleatum subsp.
Storage conditions : 2~8 ℃
No. : 337608
Product format: freeze dried, 200ul
Validity period: 6 years
Biosafety level : 2 , handle in 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. Please operate in strict accordance with this instruction, otherwise the replacement of bacteria are not be available in case of aberrant growth and loss of viability.
Growth conditions :37°C, anaerobic, thioglycolate liquid medium, 3-4 days. Thioglycolate liquid medium: caseptone (trypsin hydrolysis) 15.0g, yeast extract 5.0g, glucose 5.0g, sodium thioglycolate 0.5g,L-cystine 0.5g, sodium chloride 2.5g, azure 0.001g, agar 0.75g, distilled water 1.0L,pH 7.1±0.2. Sterilization at 121 ℃ for 15min.
Recovery steps:
(1)Prepare a φ18mm test tube of 10ml liquid medium(put in an anaerobic environment for deoxygenation in advance for 24 hours);
(2)Sterilizing the ampoule, open it in 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 the freeze dried ampoule, fully rehydrate and transfer the solution to the liquid test tube, mix evenly;
(4)Put the test tube under the above culture conditions for cultivation. The culture solution is obviously turbid or mass growth at the solution bottom occur, this indicates the bacterial grows well.
Recovery record: According to the recovery instructions, the results of the recovery are reported as follows:
| item | test result |
| viability | good viability,in 3-4 days liquid medium become turbid |
| colony morphology: (above) | Fusobacterium nuclei with nuclear subspecies, microscopic examination shows that gram-negative bacteria have slender morphology, sharp ends are like shuttle, thioglycolate liquid culture medium is turbid, liquid culture is recommended to use liquid culture |
| conclusion | good viability, no abnormal colony morphology, qualified |
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