High-throughput sequencing of soil microorganisms in invasive plants.

We derived the following three hypotheses: (1) the invasion of S canadensis increased the diversity of the soil microbial community, thus making the soil on this site more favorable for the continually invasion of this species; (2) microorganisms in the soil positively contribute to the invasion of S canadensis and promote its reproduction by strengthening seed germination; (3) the sterilization of seeds greatly reduces its seed viability and inhibits germination. By taking S. canadensis, the severely invasive hazardous species, as the object, using seed germination characteristics as the measurement index, we attempt to determine whether soil microorganisms positively promote or negatively inhibit the invasion of the invasive species, to illustrate the mechanisms by which they influence the invasion, and to specify the phyla to which the microbial community belongs.