ABSTRACT

Salmonella in the environment have evolved genetically to maintain a stable cell metabolism. Nevertheless, a lack of common nutrients (such as glucose) causes these strains to metabolize alternative carbon sources. In this study, 21 strains of Salmonella Oranienburg isolated from subtropical river water were evaluated to compare their adaptation and preconditioning abilities for the consumption of environmental carbon sources (ECS). The results obtained in this study attributed important biological characteristics to the adaptation of the metabolism of Salmonella strains to diverse ECS; these characteristics include but are not limited to variations in plasticity and natural preconditioning in closely related microorganisms, such as environmental isolates belonging to the serotype Oranienburg.

摘要

环境中的沙门氏菌经过基因进化以维持稳定的细胞代谢。然而，缺乏常见的营养物质（如葡萄糖）会导致这些菌株代谢替代碳源。在这项研究中，对从亚热带河水中分离出的 21 株奥拉宁堡沙门氏菌菌株进行了评估，以比较它们对环境碳源 (ECS) 消耗的适应和预处理能力。本研究获得的结果将重要的生物学特性归因于沙门氏菌代谢的适应各种 ECS 的菌株；这些特征包括但不限于密切相关微生物的可塑性和自然预处理的变化，例如属于血清型 Oranienburg 的环境分离株。