“Neisseria flava”的意思、由来-开放百科全书

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Neisseria flava

释义

Identification
References

{{Italic title}}{{Taxobox
| color = lightgrey
| name = Neisseria flava
| image =
| regnum = Bacteria
| phylum = Proteobacteria
| classis = Beta Proteobacteria
| ordo = Neisseriales
| familia = Neisseriaceae
| genus = Neisseria
| genus_authority =
| subdivision_ranks = Species
| subdivision =Neisseria flava}}Neisseria flava (Latin: flava, yellow, golden) is a bacterium belonging to a group of species under the genus Neisseria that is considered non-pathogenic. Along with its other members of the non-pathogenic group, Neisseria flava is often found in the upper respiratory tract surface in humans. On rare occasions, it can cause rheumatic heart disease and ventricular septal defect aortic insufficiency.^[1]

Identification

Steps

Perform Gram-stain to identify the bacterium in question, continue to step 2 if it is found to be Gram negative cocci.
Neisseria flava is an aerobic microbe, try growing some of the same in the presence in air/air + CO2.
Transfer sample able to growth in air to a NA medium at 25C, continue to step 4 if colonies are observed.
- If not, be aware of the microbe being handled, it is either Neisseria meningitidis or Neisseria gonorrhoeae, both of which are pathogenic.
- Finally, perform nitrate test.

Alternative test is Oxidative/fermentation glucose test(O/F test). If found to be oxidative, it is Neisseria spp.

If positive in the final test, the microbe is Moraxella.
If negative in the final test, the microbe is Neisseria spp.^[2]

References

1. ^Scott, RM 1971, 'Bacterial endocarditis due to Neisseria flava', The Journal of Pediatrics, vol. 78, no. 4, pp. 673-5.
2. ^2009, Microbiological Laboratory Techniques Manual, Department of Microbiology and Immunology at the University of Melbourne

1 : Neisseriales

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