Rhizopus stolonifer|BNCC189247 |BNCC

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Rhizopus stolonifer

Culture medium	Potato Glucose Agar (PDA): Potato Boiled Solution 1.0L, Glucose 20.0g, Agar 15.0g, Natural pH. Sterilization at 121 ℃ for 15min. Potato boiling liquid: weigh 200g of peeled potato pieces, boil in boiling water for 30min, and collect the filtrate to a constant volume of 1.0L.
Subculture procedure	(1) Prepare a test tube containing 5~10mL of liquid medium and 2 plates; (2) Open it in the safety 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.
Growth conditions	28 ℃;5-7 days; Aerobic
Storage conditions	2-8 ℃
morphology	Small filamentous fungi, with obvious colonies on PDA medium, slender hyphae, dense and vigorous, and a small amount of black spores in the later stage. Yangji back gray-black.
application	Pectinase production.
Sharing mode	Public welfare sharing

Rhizopus stolonifer

No.: 189247

Storage conditions: 2~8 ℃

Product format: freeze dried,200ul

Biosafety : 24 months

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 slant and suspension liquid 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:28 ℃, aerobic, integrated PDA. Comprehensive PDA: potato boiling juice 1000mL, potassium dihydrogen phosphate 3.0g, magnesium sulfate heptahydrate 1.5g, glucose 20.0g, vitamin B1 10mg, agar 20g,pH natural. 121 ℃,15min. Potato boiling solution: 200g of potato, peeled, cut into pieces, boiled in distilled water for 30min, constant volume of filtrate to 1000mL for later use. 121 ℃,15min.

Recovery steps:

(1)Prepare 1-2 of above mentioned plates;

(2)Open it in the biosafety cabinet, sterilize of the ampoule, heat the tip in a flame, quickly drop sterile water to creak it, then break it with forceps;

(3)Draw 0.5ml of sterile water into the freeze dried ampoule, make it fully dissolved, and distribute the solution to the plates well in 200ul/plate;

(4)Put the plates under the above culture conditions for cultivation for 24-48 hours.

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

item	test results
viability	good viability, in 5 days plate hyphae is obvious
colony morphology:	The morphology of the bacteria is obviously visible in the integrated PDA agar medium, and the hyphae are white, black spores are produced on the surface, dry and vigorous, and spread rapidly to the surface of the culture medium.
conclusion:	good viability, no abnormal colony morphology, completely consistent with the above figure, qualified

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