Fine yellow chain fungi|360658 |BNCC

Essential Information Certificate Related Products

Streptomyces microflavus

Subculture procedure	① Prepare one test tube containing 5-10 mL of liquid culture medium and two plates; 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 Transfer 0.5mL of liquid culture medium into a freeze-drying tube, dissolve it thoroughly, and then transfer it back into the liquid test tube, mixing well; ④ Transfer 0.2mL of bacterial suspension into a Agar plate, apply evenly, and repeat twice to obtain two plates; ⑤ Place all liquid test tubes and plates under the above cultivation conditions, and the bacterial strains can be used once they grow.
Growth conditions	28 ° C; 24-48 hours; aerobic
Storage conditions	2-8 ℃
Safety level	1
morphology	Round, neat edges, opaque, white on the front, dark in color, raised in the middle, rough on the surface, rough on the surface, hard to pick/cut, non pigmented, G+(blue purple), Bacillus, purity: pure
Sharing mode	Public welfare sharing

Streptomyces microflavus

Storage conditions: 2~8 ℃

No. 360658

Product format： freeze dried,200ul

Validity: 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. Agar plates can be used directly. 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:28°C, aerobic, ISP-2 medium, 24-48h. ISP-2 medium: yeast extract powder 4.0g, malt extract powder 10.0g, glucose 4.0g, agar 20.0g, pH 7.2±0.2. Sterilize at 121℃ for 15min.

Recovery steps:

① Prepare 1-2 pieces of Blood agar plates;

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,make the strain pellet fully dissolved and inoculate a plate with the solution, then distribute it well in 200ml/plate;

④ Put the agar plates under the above culture conditions for cultivation，the strain can be used when it grow out.

Recovery record: According to the recovery instructions, the results of the recovery are reported as follows:

Item	test results
viability	good viability, in 48h plate bacteria layer is obvious; colony is typical on the streaked plate
Colony morphology: (pictured above)	Size: 1-2mm Shape: Round Edge: Irregular Transparency: Opaque Color: White Protuberance: middle convex surface: rough texture: dry and difficult to pick
conclusion: good viability, no abnormal colony morphology, qualified

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