Citrobacter genus|190351 |BNCC

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Citrobacter sp.

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	37 ℃; 18-24h; aerobic
Storage conditions	2-8 ℃
Safety level	1
morphology	The colony diameter is 1-2mm, circular, with neat edges, opaque, yellow on the front, light in color, raised in the middle, smooth on the surface, easy to pick up, G - (red), rod-shaped
Sharing mode	Public welfare sharing

Citrobacter sp

BNCC No.: 190351

Biosafety level: 4

Storage conditions:

Storage of freezed dried ampoule and agar slant at 2°C to 8°C.

Growth Conditions:

1. Nutritious gravy agar: beef paste 3.0g, peptone 10.0g,NaCl 5.0g, agar 15.0g, distilled water 1.0L,pH7.0. [Note] Add 5mg MnSO4.H2O when culturing Bacillus,which is beneficial to spore production. pH7.0. 121 ℃,15min.

2. Atmosphere: aerobic

3. Temperature: 37 ℃,24h

Notes:

1.Normal culturing time, 24-48hours for bacterial, 72 hours for yeast, 5-7days for mould, 7-10days for fungal.

2.Agar slant shall be inoculated asap, and do not keep the storage for long time.

3.Please recover the strains in strict accordance with this instruction, otherwise the replacement of the strain are not be available in case of viability loss caused by different media or growth conditions.

4.Waste generated from the handling process should be discarded after high-pressure sterilization.

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