Abstract:

Analysis and construction of library based on 16S rDNA gene, this study comparatively characterize the rhizobacterial community structure of Artemisia intramongolica sampled from Deserts of Hunsaderk and Mowosu. The results showed that rhizobacteria of Artemisia intramongolica composed of nine groups, i.e. Gemmatimonadetes (4.26%/2.08%, Hunsaderk/Mowos, the same with followings), Acidobacteria (2.15%/2.08%), Actinobacteria (10.64%/8.33%), Bacteroidetes (2.13%/4.17%), Chloroflexi (0/2.08%), α-proteobacteria (65.96%/56.25%), β-proteobacteria (0/6.25%), δ-proteobacteria (2.08%/2.13%) and γ-proteobacteria (10.64%/2.08%). Similar rhizobacterial community structure suggested that the associated plant was crucial for rhizobacteria composition, but some important difference between the plants from two deserts were observed, one of which was some photosynthetic bacteria existed in rhizosphere of Artemisia intramongolica from Mowosu while not in that from Hunsaderk.