Design and composition of synthetic fungal-bacterial microbial consortia that improve lignocellulolytic enzyme activity

Jiajun HU, Yiyun XUE, Hongcheng GUO, Mintian GAO, Jixiang LI, Shiping ZHANG, Yiu Fai TSANG

Research output: Contribution to journalArticlespeer-review

16 Citations (Scopus)

Abstract

Microbial interactions are important for metabolism as they can improve or reduce metabolic efficiency. To improve lignocellulolytic enzyme activity, a series of synergistic microbial consortia of increasing diversity and complexity were devised using fungal strains, including Trichoderma reesei, Penicillium decumbens, Aspergillus tubingensis, and Aspergillus niger. However, when a screened microbial community with cellulolytic capacity was added to the consortia to increase the number of strains, it engendered more microbial interactions with the above strains and universally improved the β-glucosidase activity of the consortia. Analysis of the microbial community structure revealed that the bacteria in the consortia are more important for lignocellulolytic enzyme activity than the fungi. One fungal and 16 bacterial genera in the consortia may interact with T. reesei and are potential members of a devised synergistic microbial consortium. Such devised microbial consortia may potentially be applied to effectively and economically degrade lignocellulose. Copyright © 2016 Elsevier Ltd.
Original languageEnglish
Pages (from-to)247-255
JournalBioresource Technology
Volume227
Early online dateDec 2016
DOIs
Publication statusPublished - Mar 2017

Citation

Hu, J., Xue, Y., Guo, H., Gao, M.-t., Li, J., Zhang, S., et al. (2017). Design and composition of synthetic fungal-bacterial microbial consortia that improve lignocellulolytic enzyme activity. Bioresource Technology, 227, 247-255.

Keywords

  • Microbial interaction
  • Synergistic microbial consortia
  • Bacteria
  • Fungi
  • Lignocellulolytic enzymes production

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