In a saprophytic chain, microorganisms live on dead organic matter.
在腐生链中，微生物以死的有机物质为生。
Through isolation and purification, 128 soil saprophytic strains were obtained.
经分离纯化，获得128个土壤腐生菌菌株。
Conclusion The invasive ability of virulent leptospires is much stronger than both attenuated and saprophytic leptospires.
结论 有毒株钩体对内皮细胞单层的穿透能力明显强于减毒株和腐生型钩体；
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