mycelin

例句：

1. 1.The fungus grows on the mycelin of decaying wood.
   这种真菌在腐烂木材的菌丝上生长。
2. 2. Mycelin is a crucial component in the growth of many plants and animals.
   菌丝是许多植物和动物生长的关键成分。
3. 3.Researchers are studying how mycelin affects the immune system.
   研究人员正在研究菌丝体如何影响免疫系统。