Klebsiella pneumoniae subsp. pneumoniae strain NCTC9504

Klebsiella pneumoniae subsp. pneumoniae strain NCTC9504 is a Gram-negative, rod-shaped bacterium that is classified as a facultative anaerobe. This organism typically resides in host-associated environments and exhibits a chemoheterotrophic mode of energy acquisition, utilizing organic compounds for growth. The cells of this strain can be found in various arrangements, including singles, pairs, and chains, and they possess flagella, which contributes to their mobility. K. pneumoniae NCTC9504 thrives optimally at a temperature of 37°C, placing it within the mesophilic temperature range. The bacterium has a simple genomic structure, characterized by a single replicon and the presence of two membranes. It is nonsporulating, which indicates that it does not form spores as a means of survival under adverse conditions. This strain is particularly notable for its association with health effects, specifically pneumonia, including community-acquired pneumonia (CAP). As a free-living organism, K. pneumoniae subsp. pneumoniae plays a significant role in human health, being a common pathogen that can lead to serious respiratory infections. Understanding the traits of this strain enhances our knowledge of its ecological niche and its impact on public health, particularly in the context of infections that arise in community settings. The strain's adaptability to different environments underscores the importance of monitoring such pathogens in clinical and environmental microbiology.