n.假细菌
adj.细菌状的
Bacteroid A modified bacterial cell in a root nodule, typically a cell of the bacterium Rhizobium in the root nudule of a leguminous plant (family Fabaceae). 类细菌：在根瘤中经过修饰的细菌细胞，比较典型的是在豆科植物根瘤中的根瘤菌（蝶形花科）。
The younger bacteroid was elliptic and had a similar nucleus region in cell. The normal bacteroid had an intact membrane envelope and PHB granules. 幼年美菌体为椭圆形，里面有个拟核区，正常类菌体有完整的周膜和PHB颗粒。
Even if they all are on P face or E face, their density is also not same in different bacteroids or different parts of a bacteroid. 即使都在P面或E面上，不同的细菌或同一细菌不同部位的颗粒密度也不一样。
There is a space between a peribacteroid membrane and a bacteroid cell wall, the size of spaces is variable in different bacteroids or the different parts of a bacteroid. 在细菌周膜与细菌细胞壁之间有一个环形腔隙，腔的大小随细菌和细菌部位不同而异。
