The complete genome sequence of Rahnella aquatilis ZF7 reveals potential beneficial properties and stress tolerance capabilities

Rahnella aquatilis ZF7 is a plant beneficial strain isolated from Sakura tree soil with potential for biocontrol. Here, we present the complete genome sequence of R. aquatilis ZF7, which consists of one 4.49 Mb circular chromosome and a 54-kb plasmid named pRAZF7. Phylogenetic analyses revealed that...

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Bibliographic Details
Published in:Archives of microbiology 2020-04, Vol.202 (3), p.483-499
Main Authors: Yuan, Lifang, Li, Lei, Zheng, Fei, Shi, Yanxia, Xie, Xuewen, Chai, Ali, Li, Baoju
Format: Article
Language:English
Subjects:
Antibiotic resistance
Antibiotics
Biochemistry
Biological control
Biomedical and Life Sciences
Biotechnology
Cell Biology
Chromosomes
Ecology
Genomes
Life Sciences
Microbial Ecology
Microbiology
Nanoparticles
Nucleotide sequence
Original Paper
Phylogeny
Plant growth
Promotion
Rahnella aquatilis
Solubilization
Strain
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Summary:Rahnella aquatilis ZF7 is a plant beneficial strain isolated from Sakura tree soil with potential for biocontrol. Here, we present the complete genome sequence of R. aquatilis ZF7, which consists of one 4.49 Mb circular chromosome and a 54-kb plasmid named pRAZF7. Phylogenetic analyses revealed that R. aquatilis ZF7 is much similar to the strains Rahnella sp. Y9602 and R. aquatilis HX2 than others evaluated. In this study, multiple genes encoding functions that likely contribute to plant growth promotion, biocontrol and stress tolerance were identified by comparative genome analyses, including IAA production, phosphate solubilization, antibiotic resistance and formation of Se nanoparticles (SeNPs). In addition, these functions were also confirmed by in vitro experiments. Considering its ability to form SeNPs, strain R. aquatilis ZF7 will contribute to nano-agriculture. Overall, the features of R. aquatilis ZF7 make it a high potential and competitive strain in biocontrol, and the genome data will help further studies on the mechanisms of plant growth promotion and biocontrol.
ISSN:0302-8933
1432-072X
DOI:10.1007/s00203-019-01758-1