Analysis of microbial diversity and community structure of rhizosphere soil of from different host plants.

Host plants influence rhizosphere microorganism composition through root secretions, and rhizosphere associated microorganisms influence Cistanche seeds germination. At present, little is known about effects of different host plants on soil bacteria and fungi in the rhizosphere of . High-throughput sequencing was used here to reveal the similarities and differences in the structural composition of the soil microbial community of from six host plants (i.e., , , , , , ). We discovered that -parasitizing (YRCR6) had the highest diversity of rhizosphere bacterial communities, and parasitizing (YRCR5) had the highest diversity of rhizosphere fungal communities. Fungal communities were more influenced by the host plant than bacterial communities. In addition, we discovered certain rhizosphere microorganisms that may be associated with Cistanche seeds germination, including , and , which are account for a relatively high proportion in , and parasitizing . Redundancy analysis results also revealed that AP, HCO , pH, Ca, SO , and K had a highly significant impact on the bacterial community structure ( < 0.01), while pH and SO had a significant impact on the fungal community structure ( < 0.05). Conclusively, differences were noted in the structure of rhizosphere bacterial and fungal communities of parasitizing different plants in the same habit and the difference may be related to the host plant. This result can provide a new ideas for the selection of host plants and the cultivation of .