Habitat and Morphology of Neisseria gonorrhoeae

Habitat and Morphology of Neisseria gonorrhoeae

Habitat of Neisseria gonorrhoeae

  1. Human is only the natural host.
  2. Found in human urogenital tract.
  3. Rectal carriage in healthy individuals.
  4. Typically seen in pus cells (intracellular)
  5. Found intracellularly in polymorphonuclear leukocytes, or a specific category of white blood cells with varying shapes of nuclei.

Morphology of Neisseria gonorrhoeae

  1. Gram –ve cocci
  2. Shape is spherical
  3. Coffee bean shaped diplococcic
  4. Diameter: 0.6 to 1 um
  5. Usually seen in pairs with adjacent sides flattened
  6. LPS has highly branched basal oligosaccharide structure
  7. Contains fimbriae
  8. Possess pili on the surface
  9. Motile (Twitching motility)
  10. Non-capsulated
  11. Non-sporing

Genome of Neisseria gonorrhoeae

  1. Circular DNA genome
  2. 2069 Genes
  3. 67 Structural RNA’s
  4. Genome Length: 2,153,922 nt
  5. Protein encoding genes: 2002
  6. G+C Content: 52.4%
  7. Have surface protein called Opa protein.

About Author

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Sagar Aryal

Sagar Aryal is a microbiologist and a scientific blogger. He is currently doing his Ph.D. from the Central Department of Microbiology, Tribhuvan University in collaboration with Helmholtz-Institute for Pharmaceutical Research Saarland (HIPS), Saarbrucken, Germany. He did his M.Sc. in Microbiology and B.Sc. in Microbiology from St. Xavier’s College, Kathmandu, Nepal. He worked as a Lecturer at St. Xavier’s College, Maitighar, Kathmandu, Nepal, from March 2017 to June 2019. He is interested in research on actinobacteria, myxobacteria, and natural products. He has published more than 15 research articles and book chapters in international journals and well-renowned publishers.

5 thoughts on “Habitat and Morphology of Neisseria gonorrhoeae”

  1. Iam Ibrahim Likhon. I have completed Bsc in health technology (Laboratory)and Masters in Microbiology.Working in a biochemistry and Microbiology in a reputed organization. I am Bangladeshi.I want a research broadly in bacteriology and higher degree in any country.

  2. Iam Khalid Madani…Iam veterinarian…Iam intersting in microbiology &pathology. ..my question; Is there any evidence or approve of presence of Nesseira in animals body or it is absolutely rare .

  3. hi Sagar,thanks for putting up such a nice note to make study of microbes simple.
    I am Frederick from Ghana,I did my Mphil in Biochemistry and working on getting antidote against some selected NTDs.

    I’ll be glad to chat u privately.


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