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Habitat and Morphology of Klebsiella pneumoniae
Habitat of Klebsiella pneumoniae
- They are found in mouth, skin and intestinal tract of human beings.
- They are also found in soil, water and sewage.
- Also found in bowel and respiratory tract of humans and animals.
- Found in the hands of hospital personnel.
- They are responsible for community and hospital acquired infections.
- People requiring equipment’s such as catheters and ventilators are at high risk.
Morphology of Klebsiella pneumoniae
- They are also called as Friedlander’s bacillus.
- They are gram -ve rod shaped bacteria.
- They appear diplococcic in the body.
- Cells are either in pairs end to end or are arranged singly.
- They are 1-2 µm long and 0.5-0.8 µm wide.
- They have parallel or bulging sides and rounded or slightly pointed ends.
- They are capsulated. They have thick capsule layer of about 160 nm.
- They are non-motile.
- They form type-1 fimbriae.
Genome (MGH 78578) of Klebsiella pneumoniae
- DNA is circular.
- Plasmid is circular.
- They have circular chromosome.
- GC Content: 57%.
- They contain 5 plasmids (pKPN3, pKPN4, pKPN5, pKPN6 and pKPN7).
- Number of nucleotides: 5694894
- Number of protein genes: 5185
- Number of RNA genes: 111