Klebsiella pneumoniae subsp. pneumoniae strain RJA166

Klebsiella pneumoniae subsp. pneumoniae strain RJA166 is a nonsporulating, Gram-negative rod bacterium that exhibits a diverse cell arrangement, occurring in chains, pairs, and singles. This strain is classified as a chemoheterotroph, utilizing organic compounds as its energy source, which aligns with its typical habitat in host-associated environments. RJA166 thrives optimally at a temperature of 37.0°C, which corresponds to the physiological temperature of many mammalian hosts. As a facultative anaerobe, K. pneumoniae subsp. pneumoniae strain RJA166 is capable of surviving in both aerobic and anaerobic conditions, allowing it to adapt to varying oxygen levels present in host tissues and environments. The ability to flourish in different oxygen states may contribute to its survival and persistence in diverse biological niches. The ecology of K. pneumoniae, including strain RJA166, underscores its role in the microbiota of the human body, where it can exist as a commensal organism while having the potential to become pathogenic under certain conditions. Understanding the traits of this strain sheds light on its adaptability and the ecological dynamics it may engage in within host-associated environments, particularly in relation to nutrient utilization and oxygen availability.