lpf操纵子通过转化 进入无菌毛的大肠杆菌菌株,其转化株会出现极丝 (polar filament),但目前还没有最终确定LP菌毛是否 在沙门菌属中是极性的。
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经固定染色后发现孢子发芽前后的形态发生变化,并能观察到弹出的极丝。
After fixed and stained, the shape of hatched spores changed compaired with that of unhatched spores and the long pole which extended out could be found.
人造石的“水”悬浮于空中(以多根极细的鱼丝悬挂),半透明树脂的极薄片层呈现水波状,正上方的人工光照使地面呈现粼粼波光。
The artificial "stone", a thin layer of translucent resin shaped to a wavy form, will float (hung by transparent wires) in the air, with spotlight on top to strengthen the variation of the thickness.
长丝是极长的纤维,包括天然丝和化纤丝。
Filament is very long fibre, including the natural fibre silk and the synthetic fibres.
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