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ATCC 8043菌種，海氏腸球菌

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產(chǎn)品詳情

Enterococcus hirae Farrow and Collins (ATCC? 8043?)

Deposited As	Streptococcus lactis (Lister) Lohnis
Strain Designations	R [BUCSAV 308, CCM 2423, CCM 2424, DSM 20160, JCM 8729, NCDO 1258, NCIB 6459, NCIB 8123]
Application	Assay of folic acid Assay of monensin Quality control Testing bactericides Food testing Water testing
Type Strain	yes
Biosafety Level	1 ATCC 8043菌種，海氏腸球菌
Product Format	freeze-dried
Storage Conditions	Frozen: -80°C or colder Freeze-Dried: 2°C to 8°C Live Culture: See Propagation Section
Preceptrol?	no
Type Strain	yes
Comments	ATCC 9790 and ATCC 8043 are the same.
Medium	ATCC? Medium 44: Brain Heart Infusion Agar/Broth
Growth Conditions	Temperature: 37°C Atmosphere: Aerobic
Name of Depositor	EE Snell
References	AOAC International Monensin in feeds, turbidimetric method. Gaithersburg, MD:AOAC International;AOAC "Official Methods of Analysis of the AOAC International" 976.37, 1990 Farrow JA, Collins MD. Enterococcus hirae, a new species that includes amino acid assay strain NCDO 1258 and strains causing growth depression in young chickens. Int. J. Syst. Bacteriol. 35: 73-75, 1985. AOAC International Vitamin assays, microbiological method. Gaithersburg, MD:AOAC International;AOAC "Official Methods of Analysis of the AOAC International" 960.46. Water quality--Detection and enumeration of intestinal enterococci in surface and waste water--Part 1: Miniaturized method (MPN) by inoculation in liquid medium. Annex E. Quality criteria for manufacturing of the medium in microtitre plates. Geneva (Switzerland):International Organization for Standardization/ANSI;ISO ISO 7899-1:1998. Chemical disinfectants and antiseptics --- Quantitative suspension test for the evaluation of bactericidal activity of chemical disinfectants and antiseptics used in food, industrial, domestic and institutional areas --- Test method and requirements (phase 2, step 1). London, UK:British Standards Institution;British Standard BS EN 1276:1997, 1997 ISO/CD 11133:2009, Annex E. Test microorganisms for commonly used culture media (giving information on the culture medium, culture conditions, test microorganisms, culture collection number of test organisms and the expected reactions) Corry, JEL, Curtis, GDW and Baird, RM (Eds) Handbook of Culture Media for Food and Water Microbiology. Royal Society of Chemistry, In preparation. ICFMH-WPCM.
Cross References	Nucleotide (GenBank) : X87185 E.hirae 23S-5S rRNA spacer DNA. Nucleotide (GenBank) : X87184 E.hirae 16S-23S rRNA spacer DNA. Nucleotide (GenBank) : AX110254 Sequence 987 from Patent WO0123604. Nucleotide (GenBank) : U39788 Enterococcus hirae D-alanine:D-alanine ligase gene, complete cds. Nucleotide (GenBank) : AJ387916 Enterococcus hirae partial sodA gene for superoxide dismutase, strain CIP 53.48 T (ATCC 8043).

常見(jiàn)問(wèn)題

問(wèn)：細(xì)胞的運(yùn)輸方式有哪些？有什么區(qū)別？

答：公司提供兩種運(yùn)輸方式供老師選擇，1、復(fù)蘇的活細(xì)胞：采用常溫發(fā)貨的方式，收到即可觀察密度并判斷是否進(jìn)行傳代操作。優(yōu)勢(shì)是省去復(fù)蘇的步驟，細(xì)胞成活率較高。2、凍存的細(xì)胞：采用干冰運(yùn)輸，一般情況下發(fā)貨是2支凍存管，收到后放-80過(guò)夜，第二天轉(zhuǎn)入液氮長(zhǎng)期存儲(chǔ)，擇機(jī)復(fù)蘇。優(yōu)勢(shì)是發(fā)貨快，一般一兩天即可收到，缺點(diǎn)是需要自己復(fù)蘇。

問(wèn)：為什么你們的細(xì)胞和其他公司的細(xì)胞培養(yǎng)條件不一樣？

答：我公司提供的細(xì)胞大部分都參考資源庫(kù)的培養(yǎng)信息，如ATCC、DSMZ、中科院等等官方平臺(tái)。也有少部分細(xì)胞為客戶(hù)提供了替代培養(yǎng)方案，根據(jù)客戶(hù)的意愿進(jìn)行選擇！

問(wèn)：培養(yǎng)瓶的培養(yǎng)液可以重復(fù)使用嗎？

答：不可以重復(fù)使用，一般從我公司發(fā)出的細(xì)胞都需要達(dá)到一定的密度后發(fā)出，充液的培養(yǎng)基血清比例會(huì)比正常培養(yǎng)時(shí)所用到的培養(yǎng)液低很多，通常在3-5%，以維持細(xì)胞存活，控制生長(zhǎng)速度，不可以用來(lái)做細(xì)胞培養(yǎng)使用。

問(wèn)：培養(yǎng)細(xì)胞在鏡下觀察發(fā)現(xiàn)有一些白色的圓點(diǎn)是什么？

答：細(xì)胞在鏡下發(fā)現(xiàn)圓形的白色的點(diǎn)點(diǎn)，一般情況下是為貼壁的細(xì)胞或脫落的細(xì)胞死亡后的產(chǎn)物，懸浮細(xì)胞也會(huì)有這種現(xiàn)象，出現(xiàn)圓形的光圈一樣的圓點(diǎn)。通常，白色的圓點(diǎn)是分散分布的，聚團(tuán)類(lèi)的懸浮細(xì)胞可能會(huì)聚團(tuán)出現(xiàn)白色的亮斑，技術(shù)老師可以繼續(xù)培養(yǎng)并觀察。

問(wèn)：剛買(mǎi)回來(lái)的細(xì)胞如何凍存留種呢？

答：一般情況下，我公司建議客戶(hù)收到細(xì)胞后傳1-2代后即可安排凍存留種，可先凍存1-2支凍存管，凍存的細(xì)胞數(shù)量多一些，便于后期復(fù)蘇。購(gòu)買(mǎi)原代細(xì)胞的客戶(hù)，要充分考慮該細(xì)胞的傳代次數(shù)限制，人源原代細(xì)胞大概可以傳7代左右，鼠源的可以傳3代左右，對(duì)于一些能傳代次數(shù)很少的原代細(xì)胞，不建議凍存，收到后調(diào)整狀態(tài)后即可安排實(shí)驗(yàn)。