Dataset Information

Draft Genome Sequence of Paenibacillus sonchi IIRRBNF1, a Nitrogen-Fixing and Plant Growth-Promoting Bacterium Isolated from Rice Rhizosphere.

ABSTRACT: Paenibacillus sonchi IIRRBNF1 is a rice-rhizospheric, endospore-forming, Gram-positive, plant growth-promoting rhizobacterium. Here, we report the draft genome sequence of Paenibacillus sonchi IIRRBNF1, which consists of an∼7.3-Mb (7,323,556-bp) genome with 6,271 coding sequences (CDSs), 13 rRNAs, and 67 tRNAs. The genome reveals the presence of a nitrogen-fixing gene cluster and genes associated with multiple plant growth-promoting traits.

SUBMITTER: Bandeppa S

PROVIDER: S-EPMC9119063 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature

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Draft Genome Sequence of Paenibacillus sonchi IIRRBNF1, a Nitrogen-Fixing and Plant Growth-Promoting Bacterium Isolated from Rice Rhizosphere.

Bandeppa Sonth S Phule Amol S AS Barbadikar Kalyani M KM Govindannagari Rajani R B Prasad Babu M B PBMB Kavuru Venkat Prasad Babu VPB Mandal Pranab Kumar PK Sundaram Raman Meenakshi RM Chandran Latha P LP

Microbiology resource announcements 20220406 5

Paenibacillus sonchi IIRRBNF1 is a rice-rhizospheric, endospore-forming, Gram-positive, plant growth-promoting rhizobacterium. Here, we report the draft genome sequence of Paenibacillus sonchi IIRRBNF1, which consists of an∼7.3-Mb (7,323,556-bp) genome with 6,271 coding sequences (CDSs), 13 rRNAs, and 67 tRNAs. The genome reveals the presence of a nitrogen-fixing gene cluster and genes associated with multiple plant growth-promoting traits. ...[more]

PMID: 35384700

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Project description:The study was designed to isolate and characterize Pseudomonas spp. from sugarcane rhizosphere, and to evaluate their plant- growth- promoting (PGP) traits and nitrogenase activity. A biological nitrogen-fixing microbe has great potential to replace chemical fertilizers and be used as a targeted biofertilizer in a plant. A total of 100 isolates from sugarcane rhizosphere, belonging to different species, were isolated; from these, 30 isolates were selected on the basis of preliminary screening, for in vitro antagonistic activities against sugarcane pathogens and for various PGP traits, as well as nitrogenase activity. The production of IAA varied from 312.07 to 13.12 μg mL-1 in tryptophan supplemented medium, with higher production in AN15 and lower in CN20 strain. The estimation of ACC deaminase activity, strains CY4 and BA2 produced maximum and minimum activity of 77.0 and 15.13 μmoL mg-1 h-1. For nitrogenase activity among the studied strains, CoA6 fixed higher and AY1 fixed lower in amounts (108.30 and 6.16 μmoL C2H2 h-1 mL-1). All the strains were identified on the basis of 16S rRNA gene sequencing, and the phylogenetic diversity of the strains was analyzed. The results identified all strains as being similar to Pseudomonas spp. Polymerase chain reaction (PCR) amplification of nifH and antibiotic genes was suggestive that the amplified strains had the capability to fix nitrogen and possessed biocontrol activities. Genotypic comparisons of the strains were determined by BOX, ERIC, and REP PCR profile analysis. Out of all the screened isolates, CY4 (Pseudomonas koreensis) and CN11 (Pseudomonas entomophila) showed the most prominent PGP traits, as well as nitrogenase activity. Therefore, only these two strains were selected for further studies; Biolog profiling; colonization through green fluorescent protein (GFP)-tagged bacteria; and nifH gene expression using quantitative real-time polymerase chain reaction (qRT-PCR) analysis. The Biolog phenotypic profiling, which comprised utilization of C and N sources, and tolerance to osmolytes and pH, revealed the metabolic versatility of the selected strains. The colonization ability of the selected strains was evaluated by genetically tagging them with a constitutively expressing GFP-pPROBE-pTetr-OT plasmid. qRT-PCR results showed that both strains had the ability to express the nifH gene at 90 and 120 days, as compared to a control, in both sugarcane varieties GT11 and GXB9. Therefore, our isolated strains, P. koreensis and P. entomophila may be used as inoculums or in biofertilizer production for enhancing growth and nutrients, as well as for improving nitrogen levels, in sugarcane and other crops. The present study, to the best of our knowledge, is the first report on the diversity of Pseudomonas spp. associated with sugarcane in Guangxi, China.

Dataset Information

Draft Genome Sequence of Paenibacillus sonchi IIRRBNF1, a Nitrogen-Fixing and Plant Growth-Promoting Bacterium Isolated from Rice Rhizosphere.

Publications

Draft Genome Sequence of Paenibacillus sonchi IIRRBNF1, a Nitrogen-Fixing and Plant Growth-Promoting Bacterium Isolated from Rice Rhizosphere.

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