Skip to main content

Advertisement

Log in

Comparative proteomic analyses reveal the metabolic aspects and biotechnological potential of nitrate assimilation in the yeast Dekkera bruxellensis

  • Applied genetics and molecular biotechnology
  • Published:
Applied Microbiology and Biotechnology Aims and scope Submit manuscript

Abstract

The yeast Dekkera bruxellensis is well-known for its adaptation to industrial ethanol fermentation processes, which can be further improved if nitrate is present in the substrate. To date, the assimilation of nitrate has been considered inefficient because of the apparent energy cost imposed on cell metabolism. Recent research, however, has shown that nitrate promotes growth rate and ethanol yield when oxygen is absent from the environment. Given this, the present work aimed to identify the biological mechanisms behind this physiological behaviour. Proteomic analyses comparing four contrasting growth conditions gave some clues on how nitrate could be used as primary nitrogen source by D. bruxellensis GDB 248 (URM 8346) cells in anaerobiosis. The superior anaerobic growth in nitrate seems to be a consequence of increased cell metabolism (glycolytic pathway, production of ATP and NADPH and anaplerotic reactions providing metabolic intermediates) regulated by balanced activation of TORC1 and NCR de-repression mechanisms. On the other hand, the poor growth observed in aerobiosis is likely due to an oxidative stress triggered by nitrate when oxygen is present. These results represent a milestone regarding the knowledge about nitrate metabolism and might be explored for future use of D. bruxellensis as an industrial yeast.

Key points

• Nitrate can be regarded as preferential nitrogen source for D. bruxellensis.

• Oxidative stress limits the growth of D. bruxellensis in nitrate in aerobiosis.

• Nitrate is a nutrient for novel industrial bioprocesses using D. bruxellensis.

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

Data availability statement

All data generated or analysed during this study are included in this published article (and its supplementary information files) and further information are available from the corresponding author on reasonable request.

References

Download references

Acknowledgements

The authors gratefully thank the technical staff of the Northern Centre for Technological Strategies CETENE (Recife, Pernambuco, Brazil at https://www.cetene.gov.br/) for their kind help with MALDI-ToF and MS analyses and Dr. Jimmy Eng of the Centre for Advanced Proteomics of the University of Washington (Seattle, WA, USA at http://proteomicsresource.washington.edu/) for the use of MASCOT with the specific D. bruxellensis database. The English text of this paper has been revised by Sidney Pratt, Canadian, MAT (The Johns Hopkins University), RSAdip - TESL (Cambridge University).

Funding

This work was sponsored by grants of the National Council of Science and Technology (CNPq/process 409767/2018-2 and CNPq/process 303551/2017-8) and by the Bioethanol Research Network of the State of Pernambuco (CNPq-FACEPE/PRONEM APQ-1452-2.01/10).

Author information

Authors and Affiliations

Authors

Contributions

MAMJ, WBP and TCJ conceived and designed the research. ICPM, DCP, KMS and EPNP conducted the experiments. ICPM, DCP, EPNP and FACS performed the proteome annotation and GO analyses. ICPM, WBP, TCJ and MAMJ prepared the manuscript. All authors read and approved the submitted manuscript.

Corresponding author

Correspondence to Marcos Antonio de Morais Jr.

Ethics declarations

Conflict of interest

The authors declare no competing interests.

Ethics approval

This article does not contain any studies with human participants or animals performed by any of the authors.

Additional information

Publisher’s note

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

Supplementary Information

ESM 1

(PDF 408 kb)

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Peña-Moreno, I.C., Parente, D.C., da Silva, K.M. et al. Comparative proteomic analyses reveal the metabolic aspects and biotechnological potential of nitrate assimilation in the yeast Dekkera bruxellensis. Appl Microbiol Biotechnol 105, 1585–1600 (2021). https://doi.org/10.1007/s00253-021-11117-0

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s00253-021-11117-0

Keywords

Navigation