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Acanthamoeba astronyxis (Ray and Hayes) Page
Acanthamoeba astronyxis (Ray and Hayes) Page
規(guī)格:
貨期:
編號:B203456
品牌:Mingzhoubio

標(biāo)準(zhǔn)菌株
定量菌液
DNA
RNA

規(guī)格:
凍干粉
斜面
甘油
平板


產(chǎn)品名稱 Acanthamoeba astronyxis (Ray and Hayes) Page
商品貨號 B203456
Application
characterization of Acanthamoeba polyphaga
Molecular characterization of corneal pathogen
Biosafety Level 1

Biosafety classification is based on U.S. Public Health Service Guidelines, it is the responsibility of the customer to ensure that their facilities comply with biosafety regulations for their own country.

Isolation
soil, California, 1944
Product Format freeze-dried
Type Strain no
Comments
species description
Antigens revealed by protein immunoblotting
mitochondrial DNA fingerprinting
characterization of Acanthamoeba polyphaga
review
Molecular characterization of corneal pathogen
phylogeny
Medium ATCC® Medium 712: PYG w/ Additives
Growth Conditions
Temperature: 25.0°C
Duration: axenic
Protocol: ATCCNO: 30010 SPEC: This strain is distributed as a freeze-dried preparation. See the general procedures for opening a freeze-dried vial. Aseptically add 0.5 ml of ice cold medium containing 12% (w/v) sucrose to the freeze-dried inner shell vial. Once the culture is completely rehydrated, aseptically add 1 ml of ATCC medium 712 and distribute to a 16 X 125 mm plastic screw-capped test tube or a T-25 tissue culture flask containing 5.0 ml of the same medium. Incubate the test tube culture horizontally with the cap on tight. Trophozoites should be evident in 1-5 days.
Subcultivation
Protocol: ATCCNO: 30010 SPEC: This strain is distributed as a freeze-dried preparation. See the general procedures for opening a freeze-dried vial. Aseptically add 0.5 ml of ice cold medium containing 12% (w/v) sucrose to the freeze-dried inner shell vial. Once the culture is completely rehydrated, aseptically add 1 ml of ATCC medium 712 and distribute to a 16 X 125 mm plastic screw-capped test tube or a T-25 tissue culture flask containing 5.0 ml of the same medium. Incubate the test tube culture horizontally with the cap on tight. Trophozoites should be evident in 1-5 days.
Cryopreservation

1.?? To achieve the best results set up cultures with several different inocula (e.g. 0.25 ml, 0.5 ml, 1.0 ml).? Harvest cultures and pool when the culture that received the lowest inoculum is at or near peak density.

2.? If the cell concentration exceeds the required level do not centrifuge, but adjust the concentration to between 2 x 106 and 2 x 107cysts/ml with fresh medium.? If the concentration is too low, centrifuge at 600 x g for 5 min and resuspend the pellet in the volume of fresh medium required to yield the desired concentration.

3.? While cells are centrifuging prepare a 15% (v/v) solution of sterile DMSO as follows:? Add the required volume of DMSO to a glass screw-capped test tube and place it in an ice bath.? Allow the DMSO to solidify.? Add the required volume of refrigerated medium.? Dissolve the DMSO by inverting the tube several times.?

????? *NOTE: If the DMSO solution is not prepared on ice, an exothermic reaction will occur that may precipitate certain components of the medium.

4.? Mix the cell preparation and the DMSO in equal portions. Thus, the final concentration will be between 106 and 107 cells/ml and 7.5% (v/v) DMSO. The time from the mixing of the cell preparation and DMSO stock solution before the freezing process is begun should be no less than 15 min and no longer than 30 min.

5.?? Dispense in 0.5 ml aliquots into 1.0 - 2.0 ml sterile plastic screw-capped cryules (special plastic vials for cryopreservation).

6.?? Place the vials in a controlled rate freezing unit.? From room temperature cool at -1°C/min to -40°C.? If the freezing unit can compensate for the heat of fusion, maintain rate at??????? -1°C/min through the heat of fusion.? At -40°C plunge into liquid nitrogen. Alternatively, place the vials in a Nalgene 1°C freezing apparatus.? Place the apparatus at -80°C for 1.5 to 2 hours and then plunge ampules into liquid nitrogen.? (The cooling rate in this apparatus is approximately

????? -1°C/min.) ?

7. The frozen preparations are stored in either the vapor or liquid phase of a nitrogen freezer.

8.?? To establish a culture from the frozen state place an ampule in a water bath set at 35°C (2-3 min). Immerse the vial just sufficient to cover the frozen material. Do not agitate the vial.

9.?? Immediately after thawing, aseptically remove the contents of the ampule and inoculate into 5 ml of fresh ATCC medium 712 in a T-25 tissue culture flask or plastic 16 x 125 mm screw-capped test tube.? Incubate at 25°C.

Name of Depositor W Balamuth
Chain of Custody
ATCC <<--W Balamuth<<--D.L. Ray
Year of Origin 1944
References

Sawyer TK, Griffin JL. Acanthamoeba comandoni and A. astronyxis: taxonomic characteristics of mitotic nuclei, 'centrosomes' and cysts. J. Protozool. 18: 382-388, 1971.

Moura H, et al. Acanthamoeba healyi n. sp. and the isoenzyme and immunoblot profiles of Acanthamoeba spp., groups 1 and 3. J. Protozool. 39: 573-583, 1992. PubMed: 1522539

Nerad TA, et al. Acanthamoeba pearcei n. sp. (Protozoa: Amoebida) from sewage contaminated sediments. J. Eukaryot. Microbiol. 42: 702-705, 1995. PubMed: 8520585

Powell EL, et al. Identification of antigens of pathogenic free-living amoebae by protein immunoblotting with rabbit immune and human sera. Clin. Diagn. Lab. Immunol. 1: 493-499, 1994. PubMed: 8556491

Gautom RK, et al. Mitochondrial DNA fingerprinting of Acanthamoeba spp. isolated from clinical and environmental sources. J. Clin. Microbiol. 32: 1070-1073, 1994. PubMed: 7913095

John DTOpportunistically pathogenic free-living amebaeIn: John DTParasitic protozoa2nd ed.3San DiegoAcademic Presspp. 143-246, 1993

Ledee DR, et al. Acanthamoeba griffini, molecular characterization of a new corneal pathogen. Invest. Ophthalmol. Vis. Sci. 37: 544-550, 1996. PubMed: 8595954

Daggett PM, et al. Distribution and possible interrelationships of pathogenic and nonpathogenic Acanthamoeba from aquatic environments. Microb. Ecol. 8: 371-386, 1982.

Daggett PM, et al. A molecular approach to the phylogeny of Acanthamoeba. Biosystems 18: 399-405, 1985. PubMed: 4084681

Fritsche TR, et al. Occurrence of bacterial endosymbionts in Acanthamoeba spp. isolated from corneal and environmental specimens and contact lenses. J. Clin. Microbiol. 31: 1122-1126, 1993. PubMed: 8501212

Pettit DA, et al. In vitro destruction of nerve cell cultures by Acanthamoeba spp.: a transmission and scanning electron microscopy study. J. Parasitol. 82: 769-777, 1996. PubMed: 8885887

Stothard DR, et al. Fluorescent oligonucleotide probes for clinical and environmental detection of Acanthamoeba and the T4 18S rRNA gene sequence type. J. Clin. Microbiol. 37: 2687-2693, 1999. PubMed: 10405422

Schroeder JM, et al. Use of subgenic 18s ribosomal dna pcr and sequencing for genus and genotype identification of acanthamoebae from humans with keratitis and from sewage sludge. J. Clin. Microbiol. 39: 1903-1911, 2001. PubMed: 11326011

Kong HH, et al. Mitochondrial DNA restriction fragment length polymorphism (RFLP) and 18S small-subunit ribosomal DNA PCR-RFLP analyses of Acanthamoeba isolated from contact lens storage cases of residents in southwestern Korea. J. Clin. Microbiol. 40: 1199-1206, 2002. PubMed: 11923331

Alizadeh H, et al. Tear IgA and serum IgG antibodies against Acanthamoeba in patients with Acanthamoeba keratitis. Cornea 20: 622-627, 2001. PubMed: 11473164

Reveiller FL, et al. Isolation of a unique membrane protein from Naegleria fowleri. J. Eukaryot. Microbiol. 48: 676-682, 2001. PubMed: 11831777

Ledee DR, et al. Advantages of using mitochondrial 16S rDNA sequences to classify clinical isolates of Acanthamoeba. Invest. Ophthalmol. Vis. Sci. 44: 1142-1149, 2003. PubMed: 12601042

Marciano-Cabral F, Cabral G. Acanthamoeba spp. as agents of disease in humans. Clin. Microbiol. Rev. 16: 273-307, 2003. PubMed: 12692099

Cross References

Nucleotide (GenBank) : AF019064 Acanthamoeba astronyxis Ray & Hayes 18S ribosomal RNA gene, partial sequence.

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