菌源是产生传播体的地方，有传播体才有传播，有传播就有菌源中心(focus)，依照传播距离研究所取的空间规模和菌源中心的形状，菌源可分三类。
菌菌源 Reuteri
细菌源追踪 Bacterial Source Tracking ; BST
对菌源性磁珠 Bacterial Magnetic Particles ; BMPS
目的对菌源性磁珠 Bacterial Magnetic Particles ; BMPS
细菌源追踪技术 Bacterial Source Tracking
解脲寡源杆菌 Oligella ureolytica
溶源菌 lysogen ; lysogenic bacteria ; lysogen or lysogenic bacteria
溶源细菌 lysogenic bacterium
病源细菌 pathogenic bacteria
溶源性细菌 Lysogenic bacteria ; Lysogen
除菌源量外，气候条件也是发病的重要因素。
Besides the pathogen amount, the climate was also the important factor to the disease occurrence.
小麦秋苗带菌量大，则翌春病菌越冬菌源量也大。
Large quantity of pathogen of the autumn seedlings will increase the pathogen quantity in over-wintering seedlings.
为菌源，研究了这两种混合菌降解精恶唑禾草灵的效果。
The paper studied the impact of two mixed culture on the degradation of Fenoxaprop-p-ethyl, which are from Alcaligenes sp.
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