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Studies on the biotechnological potential of Argentinean isolates of Waitea arvalis (Corticiales, Basidiomycota) for the biological control of phytopathogenic fungi

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Abstract

Ten Argentinean Waitea circinata-like isolates (Corticiales, Basidiomycota) obtained from soil samples were identified to species level based on morphological features and molecular tools, and tested in order to explore their biological control abilities. Eight of them were identified as Waitea arvalis and two as W. circinata. Waitea arvalis isolates were tested as antagonists, and W. circinata isolates were used as pathogens. Most isolates performed well in in vitro antagonistic assays, inhibiting by 54–59% the growth of seven plant pathogens: Bipolaris sorokiniana, Fusarium graminearum, Fusarium oxysporum, Pythium irregulare, two different isolates of W. circinata and Sclerotium rolfsii. The most inhibited pathogen was P. irregulare (72.6%), followed by S. rolfsii (66.7%) and W. circinata (~ 65%). There was no evidence of mycoparasitism. Their capacity for chitinase, cellulase, protease and ligninase (laccase, Mn-peroxidase and lignin-peroxidase) secretion was evaluated. Most of the isolates tested positive for chitinase activity. All the evaluated W. arvalis isolates produced cellulase, protease and laccase activities, and some of them also rendered positive results for Mn-peroxidase and decolorized the dye Azure B. Isolates INTA-L003 and INTA-L005 displayed top results for cellulase activity (both in carboxymethylcellulose plate assay and in filter paper tube assay). These activities might be responsible for their better antagonistic behavior on Pythium sp. Thus, these isolates are promising as biocontrol agents and as sources of new enzymes for industrial applications. Moreover, to the best of our knowledge, this is the first citation of W. arvalis in Argentina.

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Data availability

All data generated or analyzed during this study are included in this published article as supplementary information files (Online Resources 17).

Abbreviations

PDA:

Potato dextrose agar

MEA:

Malt extract agar

SNA:

Special nutrient agar

PDB:

Potato dextrose broth

ITS:

Internal transcribed spacer

nc LSU rDNA:

Nuclear large subunit ribosomal DNA

FPase:

Filter paper degrading enzymes

CMC:

Carboxymethylcellulose

CMCase:

Carboxymethylcellulose degrading enzymes

Lac:

Laccase

MnP:

Mn-peroxidase

LiP:

Lignin-peroxidase

EI:

Enzymatic index

References

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Acknowledgements

The authors wish to thank Federico Marion for the contributions made to the Waitea collection.

Funding

The present work was supported with funds from Instituto Nacional de Tecnología Agropecuaria (INTA) through the Disciplinary Project 201-PD-E4-I069-001, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET PIP11220170100283) and Universidad de Buenos Aires (UBACYT 2020020170100163).

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Authors

Contributions

Eliana Melignani, Rodrigo Alejandro Rojo, Laura Noemí Levin and Viviana Andrea Barrera contributed to the study conception and design. Material preparation, data collection and analysis were performed by Eliana Melignani, Rodrigo Alejandro Rojo and Viviana Andrea Barrera. The statistical analysis was performed by Juan Santiago Guidobono. Funding acquisition and resources were provided by Viviana Andrea Barrera and Laura Noemí Levin. The first draft of the manuscript was written by Eliana Melignani, Laura Noemí Levin and Viviana Andrea Barrera and all authors commented on previous versions of the manuscript. Supervision at all stages of this work was performed by Viviana Andrea Barrera and Laura Noemí Levin.

All authors agree to be accountable for all aspects of the work in ensuring that questions related to the accuracy or integrity of any part of the work are appropriately investigated and resolved.

Corresponding author

Correspondence to Eliana Melignani.

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All authors agree with the content of the manuscript, all authors give explicit consent to submit the manuscript and all authors obtained consent from the responsible authorities at the institutions where the work has been carried out.

Competing interests

The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.

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Section Editor: Martin Ruhl

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Laura Noemí Levin and Viviana Andrea Barrera share last authorship.

Supplementary Information

Below is the link to the electronic supplementary material.

Supplementary file1 (PDF 93 KB) List of species and GenBank accession numbers sampled in the phylogenetic analyses.

11557_2024_1944_MOESM2_ESM.pdf

Supplementary file2 (PDF 77 KB) Statistical results for the growth radius (mm) of W. arvalis isolates in different media and temperatures (after 72 h).

Supplementary file3 (FAS 32 KB) nc LSU rDNA alignment matrix for phylogenetic analysis.

Supplementary file4 (FAS 28 KB) ITS alignment matrix for phylogenetic analysis.

Supplementary file5 (FAS 30 KB) nc LSU rDNA-ITS concatenated alignment for phylogenetic analysis.

11557_2024_1944_MOESM6_ESM.pdf

Supplementary file6 (PDF 105 KB) Growth Inhibition percentages (GI, %) of the pathogens from dual culture assays performed with W. arvalis.

Supplementary file7 (PDF 87 KB) Summary of biocontrol assays reported for W. arvalis.

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Melignani, E., Guidobono, J.S., Rojo, R.A. et al. Studies on the biotechnological potential of Argentinean isolates of Waitea arvalis (Corticiales, Basidiomycota) for the biological control of phytopathogenic fungi. Mycol Progress 23, 16 (2024). https://doi.org/10.1007/s11557-024-01944-6

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  • DOI: https://doi.org/10.1007/s11557-024-01944-6

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