The formation of Poria cocos is that the mycelium of Poria cocos parasitizes dead pine trees under suitable conditions, continuously decomposes the nutrients in cellulose and hemicellulose of pine trees, and accumulates the excess substances after sterilization to expand rapidly, and the formed nutrient storage organs and dormant organs are sclerotia, commonly known as Poria cocos.
Because poria cocos mycelium has strong affinity with various elements in pine trees, artificial inoculation of pure mycelium can lead to rapid propagation, and poria cocos can be formed in three months and excavated in six months.
Extended data:
Wild Poria cocos is one of the important Chinese herbal medicines with high medicinal value. But because it has no roots and seedlings, it is hidden in the soil of pine forest. How can I dig wild poria cocos?
Look at the older pine trees, there are big poria cocos, the younger ones have small poria cocos, and the younger ones don't. Generally, pine trees that have grown for more than 30 years can begin to have poria cocos, and the largest nest of poria cocos can exceed 100 kg.
Second, look at the roots and see if there are any cut pine roots around the pine trees. Anyone who has cut pine roots for more than six years generally has pale white powder and cracks in the roots of pine trees, and may have poria cocos.
There are no old cut roots or rotten roots around pine trees, so there is no poria cocos.
Baidu Encyclopedia-Pine Poria