Skip to main content
Log in

The potential of fungal co-cultures as biological inducers for increased ligninolytic enzymes on agricultural residues

  • Original Paper
  • Published:
International Journal of Environmental Science and Technology Aims and scope Submit manuscript

Abstract

Dual cultivation or co-cultivation of fungi and the exploitation of interspecific interaction, even antagonism, show considerable promise as a strategy in enhancing enzyme production. The aim of this work was to investigate the phenomenon of antagonistic invasion as a strategy to possibly accelerate secondary metabolism in ligninolytic fungi and thereby to increase enzyme activity. Ten different fungal strains were cultivated on various substrates like corn cob, wheat straw and sugar cane bagasse and evaluated for the effects of invasion antagonistic interaction on enzyme production. Monoculture enzyme activities were compared with co-culture enzyme activities. However, strains such as Trichoderma sp. KN10, Rhizopus microsporus KN2, Fomitopsis sp. KN1 and Coriolopsis sp. KN6 demonstrated strong tendencies of invasion and replacement in co-cultures. Also, significant changes in morphology and concomitant increase in enzyme activity were demonstrated in a majority of these interactions with remarkable results observed with invasions involving Trichoderma sp. KN10. Analysis of mean values of enzyme activity showed dual culture interactions involving KN10 with values for manganese peroxidase production approximately at 1.46 U/mL compared to monoculture of 0.06 U/mL. Furthermore, dual culture laccase values were approximately 0.09 U/mL compared to monocultures of 0.05 U/mL. Overall, the highest enzyme activity was observed using wheat straw reflecting similar patterns of invasion interactions. This study demonstrates that dual cultivation of fungi with the appropriate substrates results in improved production of biotechnologically relevant enzymes.

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

Similar content being viewed by others

References

Download references

Acknowledgements

The authors wish to thank Mr Oliver Wanjau for his tremendous support during the course of the laboratory work, Miss Annie Monanga for her critical evaluation of this work during the writing and Mr Taboga Mathiba for his contribution to the statistical analysis. They would like to acknowledge the Pearson Institute of Higher Education for the provision of their laboratory facilities. This work was financially supported by the National Student Financial Aid Scheme (NSFAS) project (Grant Number 54003/74721) managed by the University of South Africa (UNISA).

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to G. N. Ijoma.

Ethics declarations

Conflict of interest

The authors declare that they have no conflict of interest.

Additional information

Editorial responsibility: M. Abbaspour

Electronic supplementary material

Below is the link to the electronic supplementary material.

Supplementary material 1 (DOCX 18 kb)

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Ijoma, G.N., Selvarajan, R. & Tekere, M. The potential of fungal co-cultures as biological inducers for increased ligninolytic enzymes on agricultural residues. Int. J. Environ. Sci. Technol. 16, 305–324 (2019). https://doi.org/10.1007/s13762-018-1672-4

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s13762-018-1672-4

Keywords

Navigation