The soil of the Illinois prairies is fat, rich and thick.

伊利诺伊大草原上，土壤肥沃、丰产而深厚。

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Because of the effect of soil pollution, atmospheric environment pollution and self-metabolism, some harmful contents were also bioaccumulation in biotic fat during plant materials' growth.

因种植和生产过程、土壤、大气环境及自身代谢等因素影响，其不仅含有植物的主要功效成分，同时也有微量有害成分存在。

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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.

利用植物组织诱生法从土壤中富集菌株，并用苏丹染料染色法对菌丝染色，选择脂肪含量高的菌株作复筛。

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