Antagonistic activities of mycoparasitic Pythium species against Fusarium oxysporum f. sp. lycopersici and Botrytis cinerea on tomatoes
Year 2024,
, 176 - 185, 25.03.2024
Meryem Ateş
,
Gürsel Hatat Karaca
Abstract
In this study, antagonistic effects of Pythium acanthophoron, P. lycopersicum, P. oligandrum and P. paroecandrum against Fusarium oxysporum f. sp. lycopersici and Botrytis cinerea were investigated by in vitro and in vivo trials. In vitro mycoparasitic activities of Pythium species were determined by dual culture, inverted plate culture and agar diffusion tests. As a result of dual culture tests, suppressive effects of all mycoparasites were over 70% against mycelial growth of the pathogens. Inverted plate tests showed that antagonistic effects of mycoparasites regarding their volatile compounds were rather low. In the agar diffusion test, all mycoparasites showed antibiosis effect, however P. lycopersicum had the highest suppressive effect on both pathogens. In pot trials, mycoparasites were effective to protect tomato seedlings when pathogens were seperately inoculated, and suppressed the symptoms. When two pathogens were inoculated together, P. paroecandrum was ineffective against B. cinerea, but decreased the severity of wilt symptoms, while other mycoparasites totally inhibited both diseases. Chromatographic analyses made by using leaf samples taken 12, 24, 48 and 72 hours after pathogen inoculation showed meaningful increase on chlorogenic acid, caffeic acid and epicatechine, in the samples taken 48 hours after inoculation. Analyses after the inoculations of tomatoes with the mycoparasites and/or pathogens showed that mycoparasites also caused increase in the amounts of phenolics. This indicated that the mycoparasites could be effective to induce defense mechanisms of tomato plants against pathogens. Among them, P. oligandrum can be mentioned as the most effective mycoparasite regarding the induction of phenolics.
Ethical Statement
Ethics committee approval is not required since the article does not contain studies with human or animals.
Supporting Institution
Süleyman Demirel University
Thanks
The authors are grateful to the Scientific Research Projects Coordination Unite of Süleyman Demirel University, for the financial support.
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Year 2024,
, 176 - 185, 25.03.2024
Meryem Ateş
,
Gürsel Hatat Karaca
References
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- Deacon, J. W. & Henry, C. M. (1978). Mycoparasitism by Pythium oligandrum and P. acanthicum. Soil Biology and Biochemistry, 10, 409-415. https://doi.org/10.1016/0038-0717(78)90067-6
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- El-Katatny, M. H., Abdelzaher, H. M. A. & Shoulkamy, M. A. (2005). Antagonistic actions of Pythium oligandrum and Trichoderma harzianum against phytopathogenic fungi (Fusarium oxysporum and Pythium ultimum var. ultimum). Archives of Phytopathology and Plant Protection, 39 (4), 289-301. https://doi.org/10.1080/03235400500222396
- Elshahawy, I. E. & El-Mohamedy, R. S. (2019). Biological control of Pythium damping-off and root-rot diseases of tomato using Trichoderma isolates employed alone or in combination. Journal of Plant Pathology, 101, 597-608. https://doi.org/10.1007/s42161-019-00248-z
- Hall, G. (1998). Pythium acanthophoron. IMI Descriptions of Fungi and Bacteria, No.107, 1068. https://doi.org/10.1079/DFB/20056401068
- Hatat, G. (1995). Identification and pathogenicity of Pythium species associated with some important crops in Samsun. Ankara University, Natural and Applied Sciences Institute, Department of Plant Protection, PhD Thesis, Ankara, Türkiye, 95 pp.
- Heydari, A. & Pessarakli, M. (2010). A review on biological control of fungal plant pathogens using microbial antagonists. Journal of Biological Sciences, 10(4), 273-290. https://doi.org/10.3923/jbs.2010.273.290
- Hockenhull, J., Jenson, D. F. & Yudiarti, T. (1992). The use of P. periplocum to control damping-off of cucumber seedlings caused by P. aphanidermatum. In: E. S. Tjamos, G. C. Papavizas, & R. J. Cook (Eds.), Biological Control of Plant Diseases (pp. 203-206). Plenum Press.
- Jones, E. E. & Deacon, J. W. (1995). Comparative physiology and behaviour of the mycoparasites Pythium acanthophoron, P. oligandrum and P. mycoparasiticum. Biocontrol Science and Technology, 5, 27-40. https://doi.org/10.1080/09583159550039990
- Karaca, G., Tepedelen, G., Belgouthi, A. & Paul, B. (2008). A new mycoparasite, Pythium lycopersicum, isolated in Isparta, Turkey: Morphology, molecular characteristics, and its antagonism with phytopathogenic fungi. FEMS Microbiology Letters, 288, 163-170. https://doi.org/10.1111/j.1574-6968.2008.01334.x
- Karabuğa, F. (2011). Pathogenic and mycoparasitic Pythium species in tobacco nurseries of Denizli and Burdur provinces and efficiencies of mycoparasitic species against pathogens. Süleyman Demirel University, Graduate School of Natural and Applied Sciences, Department of Plant Protection, MSc Thesis, Isparta, Türkiye, 76 pp.
- Karunasinghe, T. G., Maharachchikumbura, S. S. N., Velazhahan, R. & Al-Sadi, A. M. (2020). Antagonistic activity of endophytic and rhizosphere fungi isolated from sea Purslane (Sesuvium portulacastrum) against Pythium damping off of cucumber. Plant Disease, 104(8), 2158-2167. https://doi.org/10.1094/PDIS-01-20-0003-RE
- Kinyoda, A., Mghalu, M., Guyo, P. & Muti, S. (2022). Effects of solvent extracted bioactive compounds from the bark, roots and leaves of Croton jatrophoides on tomato wilt disease (Fusarium oxysporum f. sp. lycopersici). Journal of Natural Products and Resources, 8(1), 276–283. https://doi.org/10.30799/jnpr.103.22080101
- Lamichhane, J. R., Dürr, C., Schwanck, A. A., Robin, M. H., Sarthou, J. P., Cellier, V., Messean, A. & Aubertot, J. N. (2017). Integrated management of damping-off diseases. A review. Agronomy for Sustainable Development, 37, 1-25. https://doi.org/10.1007/s13593-017-0417-y
- Le Floch, G., Rey, P., Franck, D., Benhamou, N., Picard, K. & Tirilly, Y. (2003). Enhancement of development and induction of resistance in tomato plants by the antagonist, Pythium oligandrum. Agronomy, 23, 455-460. https://doi.org/10.1051/agro:2003018
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