Using the plant organization to concentrate the pythium strain from the soil, and dyes with the Sudanese dye dyeing to the hypha, high fat content strain was got to further research.

The soil capacity system has transfering and screening effects, which display the different matching degree of supplied information and required information.

In order to explore a biological process to produce 6-hydroxynicotinic acid, a strain, named BK-1, was rapidly isolated by a novel screening protocol from soil samples in various districts.