Can Wang1, Abolfazl Masoudi2, Min Wang3, Jia Yang4, Ruowen Shen5, Meng Man6, Zhijun Yu7, Jingze Liu8. 1. Hebei Normal University, 66447, Shijiazhuang, Hebei, China ; wangcan15@163.com. 2. Hebei Normal University, 66447, Shijiazhuang, Hebei, China ; abolfazl.masoudi@nwafu.edu.cn. 3. Hebei Normal University, 66447, Shijiazhuang, Hebei, China ; 2435675763@qq.com. 4. Hebei Normal University, 66447, Shijiazhuang, Hebei, China ; 843548025@qq.com. 5. Hebei Normal University, 66447, Shijiazhuang, Hebei, China ; srw712524@163.com. 6. Hebei Normal University, 66447, Shijiazhuang, Hebei, China ; manmeng@mail.hebtu.edu.cn. 7. Hebei Normal University, 66447, Shijiazhuang, Hebei, China ; yuzhijun@hebtu.edu.cn. 8. Hebei Normal University, 66447, Shijiazhuang, China , 050024 ; liujingze@hebtu.edu.cn.
Abstract
The diversity of the microbial compositions of the root-zone soil (the rhizosphere-surrounding soil) and root endosphere (all inner root tissues) of the two plant genera <i>Pinus tabulaeformis</i> Carr. and <i>Ginkgo biloba</i> L. were evaluated in Xiong'an New Area using high-throughput sequencing, as well as the influence of the soil edaphic parameters on microbial community compositions. Our results showed that both the taxonomic and phylogenetic diversity of the root endosphere were lower than those of the root-zone soil, but the variation in the endosphere microbial community structure was remarkably higher than that of the root-zone soil. Spearman correlation analysis showed that the soil organic matter (SOM), total nitrogen (TN), total phosphate (TP), total potassium (TK), ratio of carbon to nitrogen (C/N) and pH significantly explained the alpha diversity of the bacterial community and that TN differentially contributed to the alpha diversity of the fungal community. Variation partitioning analysis (VPA) showed that the effect of plant species on microbial composition variations was higher than the influence of any other soil properties, although soil chemical parameters explained more variation when integrated. Together, our results suggest that both plant species and soil chemical parameters played a critical role in shaping the microbial community composition.
The diversity of the microbial compositions of the root-zone soil (the rhizosphere-surrounding soil) and root endosphere (all inner root tissues) of the two plant genera <i>Pinus tabulaeformis</i> Carr. and <i>n class="Species">Ginkgo biloba</i> L. were evaluated in Xiong'an New Area using high-throughput sequencing, as well as the influence of the soil edaphic parameters on microbial community compositions. Our results showed that both the taxonomic and phylogenetic diversity of the root endosphere were lower than those of the root-zone soil, but the variation in the endosphere microbial community structure was remarkably higher than that of the root-zone soil. Spearman correlation analysis showed that the soil organic matter (SOM), total nitrogen (TN), total phosphate (TP), total potassium (TK), ratio of carbon to nitrogen (C/N) and pH significantly explained the alpha diversity of the bacterial community and that TN differentially contributed to the alpha diversity of the fungal community. Variation partitioning analysis (VPA) showed that the effect of plant species on microbial composition variations was higher than the influence of any other soil properties, although soil chemical parameters explained more variation when integrated. Together, our results suggest that both plant species and soil chemical parameters played a critical role in shaping the microbial community composition.