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Analysis Of Rhizosphere Bacterial Diversity Of Angelica Dahurica Var. Formosana Based On Different Experimental Sites And Varieties (strains)

Meiyan Jiang, Fei Yao, Yunshu Yang, Yang Zhou, Kai Hou, Yinyin Chen, Dongju Feng, Wei Wu

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AbstractOnly with good producing areas and good germplasm can good medicinal materials be produced. In this study, in order to explore the effects of soil environment and germplasm on yield and quality of Angelica dahurica var. formosana from microorganism level, Illumina MiSeq was used to study the rhizosphere bacterial diversity of A. dahurica var. formosana based on different origin and varieties (strains). The results showed that the bacterial community of A. dahurica var. formosana was stable and conserved to a certain extent, and the bacteria of Proteobacteria and Firmicutes might play an important role in improving the yield and quality of A. dahurica var. formosana. Soil variables were the key factors affecting the rhizosphere bacterial community composition of A. dahurica var. formosana. These results are of great significance for further understanding the growth promotion mechanism of beneficial rhizosphere bacteria, reducing fertilizer application, expanding planting area, improving soil environment, and improving yield and quality.ImportanceRhizosphere microorganisms play an important role in plant growth and accumulation of secondary metabolites. In this study, it was found for the first time that the rhizosphere bacterial community of A. dahurica var. formosana was relatively stable and conserved which could adapt to different environmental changes and resist the interference of external factors to a certain extent, providing a theoretical basis for distant planting and promotion of planting. The bacterial taxa of Proteobacteria and Firmicutes might play an important role in improving the yield and quality of A. dahurica var. formosana. This provided a theoretical basis for the exploitation and utilization of rhizosphere microbial resources of A. dahurica var. formosana to artificially control the soil environment and provided a new idea for increasing yield and quality of A. dahurica var. formosana.