The cud is then reswallowed and further digested by specialized microorganisms that live in the rumen.
The microorganism which causes the disease of bitterness (amer) forms longish branched filaments in the wine.
It is caused by a microorganism termed Mycoderma aceti, which occurs in wine in small groups and chaplets of round cells.
For older children and adults, if there is a question as to the cause of a sore, a tissue sample or culture can be taken to determine what type of virus or other microorganism is responsible.
Because microorganism activity slows down, fewer nutrients are available in the soil.
Pathogen-Any disease-producing microorganism.