肺炎克雷伯氏菌
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该菌株在CM0002培养基上30℃生长良好,需氧类型为好氧可用于研究。可采用-80℃冰箱冻结法;真空冷冻干燥法进行保藏。菌落为金黄色。菌体杆状,大小(0.3~1.5)×(0.6~6.0)微米,单个、成对或短链状排列。 无芽胞,无鞭毛,有荚膜,革兰氏染色反应为阴性,氧化酶阴性。兼性厌氧型,对营养要求不高,不需要特殊的生长因子。在固体培养基上可形成特征性的粘液状菌落,表现为接种环不易挑起,易拉成丝,有助鉴别。在肠道杆菌选择性培养基上能发酵乳糖,呈现有色菌落。发酵糖类活泼,并且产酸产气。该属细菌 55℃ 下 30 min可被灭活。在固体培养基上可存活数周至数月。DNA中的G+C克分子含量为52-56%。科研、产孢外多糖
This strain exhibits good growth at 30°C on CM0002 medium and is aerobic, rendering it suitable for research applications. It can be preserved via two methods: freezing at -80°C in a refrigerator or vacuum freeze-drying. The colonies are golden yellow. The bacterial cells are rod-shaped, measuring (0.3–1.5) × (0.6–6.0) μm, and occur singly, in pairs or short chains. It is non-spore-forming, non-flagellated, encapsulated, Gram-negative and oxidase-negative. It is facultatively anaerobic, with modest nutritional requirements and no need for specific growth factors. On solid media, it forms characteristic mucoid colonies that are difficult to pick up with an inoculation loop and readily drawn into threads, which facilitates identification. It is capable of fermenting lactose on enteric selective media, resulting in the formation of colored colonies. It actively ferments a wide range of carbohydrates, producing both acid and gas. Members of this genus can be inactivated by exposure to 55°C for 30 minutes. It can survive for several weeks to months on solid media. The molar G+C content of its genomic DNA ranges from 52% to 56%. This strain is utilized for scientific research and exopolysaccharide production.




