Taiwanese Sphingomonas|186404 |BNCC

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Sphingomonas formosensis

Subculture procedure	① Prepare 1-2 tablets mentioned above; ② Open the safety cabinet, burn the top with an alcohol lamp, quickly drip sterile water to break it, and then use tweezers to crush it; ③ Take 0.5mL of sterile water and transfer it into a freeze-drying tube. After fully dissolving the bacterial powder, transfer it into two plates, each plate containing about 200 μ L, and apply evenly; ④ Place the petri dish under the above cultivation conditions for cultivation, and once the bacterial strain grows, it can be used.
Growth conditions	30 ℃; 24-48 hours; aerobic;
Storage conditions	2-8 ℃
Safety level	1
morphology	Colonies are 1-2 mm in diameter, circular with entire margins, and opaque. The colony surface is smooth, moist, glistening, and convex in the center. They appear dark yellow in color, are easily emulsifiable, and do not produce diffusible pigments. Microscopic examination reveals Gram-negative (staining red) bacilli.
Sharing mode	Public welfare sharing

Sphingomonas formosensis

Storage conditions: 2~8 ℃

No. 186404

Product format: freeze dried,200ul

Validity period: 6 years

Biosafety level: 1, handle in ultra-clear 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 plate 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 loss of viability.

Growth conditions: 30℃, aerobic, tryptone soybean medium, 24-48h. Tryptone soybean medium: tryptone 17.0g, soy 3.0g, sodium chloride 5.0g, dipotassium hydrogen phosphate 2.5g, glucose 2.5g, agar 20.0g (not included in liquid medium), distilled water 1.0L, pH 7.3 ±0.2. Sterilize at 121℃ for 15min.

Recovery steps:

(1)Prepare a test tube containing 5-10mL of liquid culture medium and 2 plates;

(2) Open the ampoule 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 results
viability	good viability，in 48h the liquid medium is turbid, and the plate bacteria layer is obvious; The bacterial liquid is marked on the plate, and the colony is typical
colony morphology: (above)	size: 1-2mm ; Shape: round ; Edge: neat ; Transparency: opaque color: yellow ; Protuberance: middle bulge ; Surface: bright and smooth ; Texture: moist and easy to stir
Conclusion:	good viability, no abnormal colony morphology, qualified

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