该真菌名为菌根真菌，伴生于自然界中的绝大部分植物。它通过为植物提供必需的营养成分——更确切的说是磷酸盐——以获得糖分。
The so-called mycorrhizal fungi are found in association with nearly all plants in nature, where they deliver essential nutrients-specifically phosphate-to plants in return for sugar.
积尘伴生微生物则是：冬季细菌和真菌的浓度明显高于夏季细菌和真菌的浓度。
For dust and associated with microorganism, bacteria and fungi concentration were much higher in winter than in summer.
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