Background: The plant microbiome is one of the key determinants of plant health and metabolite production. The plant microbiome affects the plant's absorption of nutrient elements, improves plant tolerance to negative environmental factors, increases the accumulation of active components, and alters tissue texture. The microbial community is also important for the accumulation of secondary metabolites by plants. However, there are few studies on the niche differentiation of endophytic microorganisms of plants, especially at different elevations.

Methods: We investigated the effects of altitude on the community composition of endophytic fungal communities and the differentiation of endophytic microorganisms among different niches in Sm. The rhizosphere soil, roots, rhizomes and leaves of wild-type Sm. at different altitudes were sampled, and the fungal communities of all samples were analyzed by internal transcribed spacer one amplification sequencing.

Results: The results showed that in rhizosphere soil, the number of operational taxonomic units (OTUs) that could be classified or identified decreased significantly with increasing altitude, whereas in the endosphere of plants, the total number of OTUs was higher at intermediate altitudes than other altitudes. Furthermore, the structural variability in the rhizosphere fungal community was significantly lower than that in the endophytic communities. In addition, our results confirmed the presence of niche differentiation among members of the endophytic microbial community. Finally, we also determined that the predominant genus of mycobiota in the rhizome was . This study provides insight into the relationships between the endosphere microbiome and plants and can guide the artificial cultivation of this plant.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7007733PMC
http://dx.doi.org/10.7717/peerj.8510DOI Listing

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