Dust mycobacteria|364318 |BNCC

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Mycobacterium pulveris

Culture medium	BNCC360851
Description	Middlebrook 7H10 Agar
Composition	(NH₄)₂SO₄:0.5g, KH₂PO₄:1.5g, Na₂HPO₄:1.5g, Na₃C₆H₅O₇:0.4g, MgSO₄:0.025g, CaCl₂:0.5mg, ZnSO₄:0.001g, CuSO₄:0.001g, Sodium L-Glutamate(C₅H₈NNaO₄):0.5g, C₆H₈FeNO₇:0.04g, Pyridoxine Hydrochloride(C₈H₁₁NO₃.HCl):0.001g, Biotin(C₁₀H₁₆N₂O₃S):0.5mg, Malachite Green:0.25mg, OADC Supplement:10%(added at 50℃), Glycerol:5ml, Agar:15.0g, pH:6.4-6.8(25℃)
Growth conditions	37 ℃; 5-7 days; aerobic
Subculture procedure	① Prepare 1-2 of the above plates; ② After disinfecting the surface of the ampoule tube, open it in a 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 a Agar plate at a rate of 200 μ L per piece 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.
Storage conditions	2-8 ℃
Safety level	1
morphology	The colonies are 0.5–1 mm in diameter, circular, and opaque. The colony surface is yellow, convex, rough, and moist in texture. They are easily picked up. The cells are Gram‑positive (blue‑violet) and rod‑shaped (bacilli). The culture is pure.
Sharing mode	Public welfare sharing