Effect of desiccation on the ultrastructural appearances of Acinetobacter baumannii and Acinetobacter lwoffii
Effect of desiccation on the ultrastructural appearances of Acinetobacter baumannii and Acinetobacter lwoffii
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DOI：
10.1136/jcp.51.10.786
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发表时间：
1998-10-01
影响因子：
3.4
通讯作者：
Leong, ASY
中科院分区：
文献类型：
--
作者：
Houang, ETS;Sormunen, RT;Leong, ASY
鲍曼不动杆菌分离株在干燥条件下可存活超过 30 天，而鲁氏不动杆菌分离株可存活长达 21 天。对于这两个物种，干燥导致圆形细胞的比例显着增加（鲍曼不动杆菌，40%至80%；鲁沃菲不动杆菌，51%至63%），而杆状细胞的比例显着减少（鲍曼不动杆菌，58%至13%；鲁沃菲不动杆菌，46%至34%）。电镜检查显示细胞壁厚度也相应显着增加（鲍曼不动杆菌，高达53%；鲁沃菲不动杆菌，高达26%）。干燥的鲍曼不动杆菌细胞的电子密度更高，并且细胞壁比鲁沃菲不动杆菌的细胞壁厚得多 (x1.3)。不同抗干燥能力的鲍曼不动杆菌菌株的细胞壁结构值得进一步研究。
An Acinetobacter baumannii isolate survived desiccation beyond 30 days and an Acinetobacter lwoffii isolate up to 21 days. For both species, desiccation resulted in a significant increase in the proportion of round cells (A baumannii, 40% to 80%; A lwoffii, 51% to 63%) and a significant decrease in rod shaped cells (A baumannii, 58% to 13%; A lwoffii, 46% to 34%). Electronmicroscopic examination showed that there was also a corresponding significant increase in the cell wall thickness (A baumannii, up to 53%; A lwoffii, up to 26%). Desiccated A baumannii cells became more electron-dense and had significantly thicker cell walls (x1.3) than those of A lwoffii. Cell wall structures of A baumannii strains with different abilities to resist desiccation deserve further study.