Aspergillus niger|186328 |BNCC

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Aspergillus niger

Culture medium	BNCC352250
Description	Comprehensive PDA agar
Composition	Potato Infusion Powder:10.0g, Glucose:20.0g, KH₂PO₄:3.0g, MgSO₄.7H₂O:1.5g, Thiamine:0.008g, Agar:15.0g, pH:6.0±0.2(25℃)
Growth conditions	28 ℃; 5-7 days; aerobic;
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 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.
Storage conditions	2-8 ℃
Safety level	1
morphology	A small filamentous fungus. Colonies are conspicuous on synthetic PDA medium. The mycelial mat on the plate is initially white and gradually turns black. In later stages, black spores are produced, and the reverse side of the medium appears brownish-gray.
Sharing mode	Public welfare sharing