Fractal spreading growth of Serratia marcescens which produces surface active exolipids.
Fractal spreading growth of Serratia marcescens which produces surface active exolipids.
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DOI：
10.1111/j.1574-6968.1989.tb03630.x
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发表时间：
1989-10
影响因子：
2.1
通讯作者：
T. Matsuyama;Masakazu Sogawa;Y. Nakagawa
中科院分区：
文献类型：
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作者：
T. Matsuyama;Masakazu Sogawa;Y. Nakagawa
在硬琼脂培养基上扩展的粘质沙门氏菌菌落的不规则峡湾状轮廓被证明是分形的，这预示着最外层细胞的极长阵列。为了分析这种扩散生长，分离了表面活性胞外脂质（serawettin W1和W3）产生缺陷的突变体和无鞭毛突变体。发现分形扩展生长与serrawettin 产量相关。此外，当外源提供纯化的 Serrawettin W1 或 W3 时，无 Serrawettin 的突变体表现出扩散生长。
An irregular fiord-like outline of a S. marcescens colony expanding on a hard agar medium was shown to be fractal which promised an extremely long array of outermost cells. For the analysis of such spreading growth, mutants defective in production of surface active exolipids (serawettin W1 and W3) and flagella-less mutants were isolated. The fractal spreading growth was found to be correlated with serrawettin production. Furthermore, serrawettin-less mutants demonstrated spreading growth when purified serrawettin W1 or W3 were supplied exogenously.