Lacticaseibacillus paracasei strain FAM18149

Lacticaseibacillus paracasei strain FAM18149 is a Gram-positive, rod-shaped bacterium that exhibits a chain-like cell arrangement. This strain is classified as a facultative anaerobe, meaning it can survive in both aerobic and anaerobic environments. It has an optimal growth temperature of 30°C, falling within the mesophilic temperature range, which is suitable for growth at moderate temperatures. The strain is non-motile and does not possess flagella, indicating that it relies on passive movement within its habitat rather than active locomotion. It has a single replicon and one membrane, characteristics typical of many lactic acid bacteria. Lacticaseibacillus paracasei strain FAM18149 is free-living, suggesting that it does not depend on a host for survival, although it has been identified in association with various hosts, including Homo sapiens (humans), Oryctolagus cuniculus (European rabbit), and Panax ginseng (a medicinal plant). Notably, this strain has been implicated in health effects related to graft-versus-host disease (GvHD), pointing to its potential relevance in clinical or therapeutic settings. The presence of this bacterium in diverse habitats and its interactions with both animals and plants highlight its ecological versatility. Understanding the role of Lacticaseibacillus paracasei strain FAM18149 within different biological systems may provide insights into its functional contributions to host health and environmental microbiomes.