Skip to main content
Log in

Genomic appraisal of Klebsiella PGPB isolated from soil to enhance the growth of barley

  • Research Article
  • Published:
Genes & Genomics Aims and scope Submit manuscript

Abstract

Background

PGPR has substituted chemical fertilizers to enhance the nutrient profile of the soil. Although gene encoding for PGP activity is present in PGPB their activity changes in response to conditions.

Objective

To study comparative genomics for three Klebsiella strains and their PGPR activity in response to in vitro and soil condition.

Methods

We evaluated the activity of three Klebsiella spp. in two different conditions, specific nitrogen-deficient MS media and greenhouse experiment. Applying comparative genomics, genes encoding for PGP traits were identified from the whole-genome sequencing of the three strains. With the help of the RAST tool kit and functional annotation, a total number of genes encoding for cell wall capsule, nitrogen metabolism, sulfur genes and many other functional groups were identified. With the help of blast circular genome, similarity between GC content, pseudogene and tRNA was represented. The percentage of gene similarity of SSN1 was generated against BLAST with M5a1 and SGM81. Other methods like synteny alignment and orthologous gene clusters were applied to understand the homologous present in three strains.

Results

SSN1 was actively producing the maximum amount of ammonia 10.97 ± 0.29 µmol/mL compared to the other two strains. K. oxytoca M5a1 was considered negative for all PGP traits except ammonia production. The activity of SSN1 was showing a consistent pattern both the conditions whereas M5a1 was only active in vitro condition. Gene encoding for allantoin metabolism allD, allC, allB, allA, allE, allR, allH were identified in SSN1 and M5a1 but was absent in SGM81. The highest COG was shared between SGM81 and SSN1 predicting a maximum number of similar genes. The nif gene cluster was 98 % identical to the M5a1 strain.

Conclusions

Comparatively, SSN1 expressed the additional gene for various PGP traits which suggest higher efficiency of strain in nitrogen deficiency stress.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7

Similar content being viewed by others

Abbreviations

PGPB:

Plant growth promoting bacteria

PGP:

Plant growth promoting

WGS:

Whole genome sequencing

RAST:

Rapid annotation using subsystem technology

PEG:

Protein encoding gene

References

Download references

Acknowledgements

This work was supported by the Department of Science and Technology UK India Education Research (DST/INT/UK/P-156/2017). The research at the Department of Microbiology and Biotechnology, Gujarat University, School Of Sciences and Imperial College London was funded by British Council [P72898]. We thank Mr. Naman Mangukia, Research Scholar (Gujarat University) for his contribution in data submission at NCBI. DST-FIST “Fund for Improvement of S&T Infrastructure (FIST)” of the Department of Science & Technology (DST), Government of India for providing basic infrastructure grant to facilitate R&D work.

Author information

Authors and Affiliations

Authors

Corresponding authors

Correspondence to Jorg Schumacher or Meenu Saraf.

Additional information

Publisher’s note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Sharma, S., Gang, S., Schumacher, J. et al. Genomic appraisal of Klebsiella PGPB isolated from soil to enhance the growth of barley . Genes Genom 43, 869–883 (2021). https://doi.org/10.1007/s13258-021-01099-8

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s13258-021-01099-8

Keywords

Navigation