Marchal Camille, Germain Joaquim, Raveton Muriel, Lyonnard Blandine, Arnoldi Cindy, Binet Marie-Noëlle, Mouhamadou Bello
Laboratoire d'Ecologie Alpine, UMR 5553 CNRS/USMB Université Grenoble Alpes, CEDEX 9, 38058 Grenoble, France.
Microorganisms. 2021 Sep 28;9(10):2051. doi: 10.3390/microorganisms9102051.
Polychlorinated biphenyls (PCBs) belong to the organic pollutants that are toxic to humans and harmful to environments. Numerous studies dealing with the impact of PCBs on soil microorganisms have focused on bacterial communities. The effects of PCBs on fungal communities in three different PCB-polluted soils from former industrial sites were investigated using high-throughput sequencing of the internal transcribed spacer 1 region. Significant differences in fungal alpha diversity were observed mainly due to soil physico-chemical properties. PCBs only influenced the richness of the fungal communities by increasing it. Fungal composition was rather strongly influenced by both PCBs and soil properties, resulting in different communities associated with each soil. Sixteen Ascomycota species were present in all three soils, including and which are usually found in PCB-polluted soils, and and which are known PCB degraders. This study demonstrated that PCBs influence the richness and the composition of fungal communities. Their influence, associated with that of soil physico-chemical properties, led to distinct fungal communities, but with sixteen species common to the three soils which could be considered as ubiquitous species in PCB-polluted soils.
多氯联苯（PCBs）属于对人类有毒且对环境有害的有机污染物。众多关于多氯联苯对土壤微生物影响的研究都集中在细菌群落上。本研究利用内转录间隔区1区域的高通量测序技术，调查了多氯联苯对来自原工业场地的三种不同多氯联苯污染土壤中真菌群落的影响。主要由于土壤理化性质的原因，观察到真菌α多样性存在显著差异。多氯联苯仅通过增加真菌群落的丰富度来对其产生影响。真菌组成受到多氯联苯和土壤性质的强烈影响，导致每种土壤都有不同的群落。所有三种土壤中都存在16种子囊菌物种，包括通常在多氯联苯污染土壤中发现的 和 ，以及已知的多氯联苯降解菌 和 。本研究表明，多氯联苯会影响真菌群落的丰富度和组成。它们的影响与土壤理化性质的影响相结合，导致形成了不同的真菌群落，但三种土壤中有16个共同物种，这些物种可被视为多氯联苯污染土壤中的常见物种。
