Unraveling Mechanisms and Impact of Microbial Recruitment on Oilseed Rape (Brassica napus L.) and the Rhizosphere Mediated by Plant Growth-Promoting Rhizobacteria | |
Liu, Ying; Gao, Jie; Bai, Zhihui; Wu, Shanghua![]() ![]() ![]() ![]() | |
2021-01 | |
Source Publication | MICROORGANISMS
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Volume | 9Issue:1Pages:- |
Abstract | Plant growth-promoting rhizobacteria (PGPR) are noticeably applied to enhance plant nutrient acquisition and improve plant growth and health. However, limited information is available on the compositional dynamics of rhizobacteria communities with PGPR inoculation. In this study, we investigated the effects of three PGPR strains, Stenotrophomonas rhizophila, Rhodobacter sphaeroides, and Bacillus amyloliquefaciens on the ecophysiological properties of Oilseed rape (Brassica napus L.), rhizosphere, and bulk soil; moreover, we assessed rhizobacterial community composition using high-throughput Illumina sequencing of 16S rRNA genes. Inoculation with S. rhizophila, R. sphaeroides, and B. amyloliquefaciens, significantly increased the plant total N (TN) (p < 0.01) content. R. sphaeroides and B. amyloliquefaciens selectively enhanced the growth of Pseudomonadacea and Flavobacteriaceae, whereas S. rhizophila could recruit diazotrophic rhizobacteria, members of Cyanobacteria and Actinobacteria, whose abundance was positively correlated with inoculation, and improved the transformation of organic nitrogen into inorganic nitrogen through the promotion of ammonification. Initial colonization by PGPR in the rhizosphere affected the rhizobacterial community composition throughout the plant life cycle. Network analysis indicated that PGPR had species-dependent effects on niche competition in the rhizosphere. These results provide a better understanding of PGPR-plant-rhizobacteria interactions, which is necessary to develop the application of PGPR. |
Department | 中国科学院环境生物技术重点实验室 |
Keyword | PGPR rhizosphere plant growth stage dynamic rhizobacteria community network analysis |
WOS Research Area | Microbiology |
Document Type | 期刊论文 |
Identifier | https://ir.rcees.ac.cn/handle/311016/46165 |
Collection | 中国科学院环境生物技术重点实验室 |
Affiliation | 1.Univ Sci & Technol China, Sch Life Sci, Hefei 230026, Peoples R China 2.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, CAS Key Lab Environm Biotechnol, Beijing 100085, Peoples R China 3.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China 4.CSIRO Mineral Resources, Kensington, WA 6151, Australia |
Recommended Citation GB/T 7714 | Liu, Ying,Gao, Jie,Bai, Zhihui,et al. Unraveling Mechanisms and Impact of Microbial Recruitment on Oilseed Rape (Brassica napus L.) and the Rhizosphere Mediated by Plant Growth-Promoting Rhizobacteria[J]. MICROORGANISMS,2021,9(1):-. |
APA | Liu, Ying.,Gao, Jie.,Bai, Zhihui.,Wu, Shanghua.,Li, Xianglong.,...&Zhuang, Xuliang.(2021).Unraveling Mechanisms and Impact of Microbial Recruitment on Oilseed Rape (Brassica napus L.) and the Rhizosphere Mediated by Plant Growth-Promoting Rhizobacteria.MICROORGANISMS,9(1),-. |
MLA | Liu, Ying,et al."Unraveling Mechanisms and Impact of Microbial Recruitment on Oilseed Rape (Brassica napus L.) and the Rhizosphere Mediated by Plant Growth-Promoting Rhizobacteria".MICROORGANISMS 9.1(2021):-. |
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