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. 2023 May;46(5):665-679.
doi: 10.1007/s00449-023-02852-x. Epub 2023 Feb 16.

The bioherbicidal potential of isolated fungi cultivated in microalgal biomass

Aline Frumi Camargo  1   2 , Caroline Dalastra  3 , Alessandro Ulrich  4 , Thamarys Scapini  3   5 , Charline Bonatto  3 , Natalia Klanovicz  3   6 , William Michelon  7 , Lindomar Lerin  8 , Sérgio Luiz Alves Júnior  9 , Altemir José Mossi  4 , Marco A Tramontin  10 , Oderlei Bernardi  11 , Shukra Raj Paudel  12 , Gislaine Fongaro  13 , Helen Treichel  13   3
Affiliations

The bioherbicidal potential of isolated fungi cultivated in microalgal biomass

Aline Frumi Camargo et al. Bioprocess Biosyst Eng. 2023 May.

Abstract

This study evaluated the bioherbicidal potential of wild fungi grown on microalgal biomass from the digestate treatment of biogas production. Four fungal isolates were used and the extracts were evaluated for the activity of different enzymes and characterized by gas chromatography coupled with mass spectrometry. The bioherbicidal activity was assessed by application on Cucumis sativus, and the leaf damage was visually estimated. The microorganisms showed potential as agents producing an enzyme pool. The obtained fungal extracts presented different organic compounds, most acids, and when applied to Cucumis sativus, showed high levels of leaf damage (80-100 ± 3.00%, deviation relative to the observed average damage). Therefore, the microbial strains are potential biological control agents of weeds, which, together with the microalgae biomass, offer the appropriate conditions to obtain an enzyme pool of biotechnological relevance and with favorable characteristics to be explored as bioherbicides, addressing aspects within the environmental sustainability.

Keywords: Biological control; Biotechnological processes; Enzymes; Food safety; Microbial strains.

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