Bacterial Communities of L. Medicinal Plants: Structural Features and Rhizosphere Effect.

Bacterial communities associated with medicinal plants are an essential part of ecosystems. The rhizosphere effect is rather important in the cultivation process. The purpose of the study was to analyze the rhizosphere effect of oregano ( L.), peppermint ( L.), thyme ( L.), creeping thyme ( L.) and sage ( L.). To estimate the quantity of 16S bacteria ribosomal genes, qPCR assays were used. To compare bacterial communities' structure of medicinal plants rhizosphere with bulk soil high-throughput sequencing of the 16S rRNA targeting variable regions V3-V4 of bacteria was carried out. The highest bacterial abundance was associated with L., L. and L., and the lowest was associated with the L. rhizosphere. Phylum was predominant in all rhizosphere samples. The maximum bacterial α-diversity was found in L. rhizosphere. According to bacterial β-diversity calculated by the Bray-Curtis metric, L. root zone significantly differed from bulk soil. The rhizosphere effect was positive to the , , , and .