首页|Microbiota associated with the rhizosphere of Paeonia lactiflora Pall. (ornamental cultivar)
Microbiota associated with the rhizosphere of Paeonia lactiflora Pall. (ornamental cultivar)
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NSTL
Elsevier
ABSTR A C T The rhizosphere is of great interest to scholars as the main area where root-soil-microflora interactions occur. Studies on rhizosphere microorganisms have been mainly focused on medicinal plants, while little research has been done on ornamental plants. Paeonia lactiflora is a perennial herb peony, that belongs to Paeoniaceae and is widely used worldwide as an ornamental plant. To study the rhizosphere microbial communities of different cultivars of P. lactiflora, we analyzed the rhizosphere microbial communities of four cultivars of P. lactiflora using high-throughput sequencing technology. In our study, 62,139 to 65,634 high-quality sequences belonging to 9654 distinct Operational Taxonomic Units were obtained in each sample. Among all sequences, the dominant phyla with relative abundance greater than 1% were Proteobacteria, Acidobacteriota, Actinobacteriota, Myx-ococcota, Verrucomicrobiota, Bacteroidota, Crenarchaeota, Planctomycetota and Firmicutes. We found that the rhizosphere bacterial communities of four cultivars of P. lactiflora did not differ significantly in general, but there were some differences. The dominant rhizosphere microorganisms of P. lactiflora are Proteobacteria and Acid-obacteriota. The bacterial communities of the peony cultivars 'Zi Feng Yu' and 'Yang Fei Chu Yu' contained more bacteria that can promote plant growth under environmental stresses such as drought and high salinity compared to the other two cultivars. By analyzing the soil factors related with the P. lactiflora rhizosphere bacterial community, we found that different soil factors had effects on the abundance of the dominant bacterial genus in the rhizosphere soil of P. lactiflora. Among them, pH and alkaline phosphatase significantly affected the bacterial community, including Elusimicrobia, Gemmatimonadetes, Nitrospirota, Planctomycetota, etc. These results fill the gap in the study of rhizosphere microorganisms in P. lactiflora and provide a reference for future research on biofertilizers and the promotion of peony cultivation.
Paeonia lactiflora16S rRNARhizosphere soilBacterial community
Zu, Mengting、Yuan, Yingdan、Zuo, Jiajia、Sun, Lanping、Tao, Jun
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Yangzhou Univ, Coll Hort & Plant Protect, Jiangsu Key Lab Crop Genet & Physiol, Coinnovat Ctr Modern Prod Technol Grain Crops, Yangzhou 225009, Jiangsu, Peoples R China
NSTL
Elsevier
