Skip to main content
SpringerLink
Log in

Sensitivity of the Causative Agent of Net Blotch of Barley (Pyrenophora teres Drechsler) to Fungicides

  • CROP PRODUCTION, PLANT PROTECTION, AND BIOTECHNOLOGY
  • Published:
Russian Agricultural Sciences Aims and scope

Abstract

This research was carried to study the effect of fungicides of various classes on the intrapopulation structure of Pyrenophora teres in terms of its sensitivity to toxicants, virulence, and racial composition. The study involved eight variants of winter barley treatment with Magnello, EC (1 L/ha), Capella, M (1 L/ha), Kolosal Pro, MC (0.4 L/ha), Quadris, SC (1.2 L/ha), Amistar Trio, EC (1 L/ha), and Orgamika C, L (0.4 L/ha), which were introduced to the nutrient medium with a pure culture of P. teres at doses of 25, 50, 75, 100, 125, 150, 175, and 200% of the norm (control without treatment). The racial composition of the populations was determined using an international set of differentiator varieties. When treating plants with fungicides at the rates permitted for agricultural use, the minimum levels of efficiency were recorded for Quadris, SC (52.3%) and Orgamika C, L (66.8%) and maximum levels of efficiency for Magnello, EC (88.2%) and Kolosal Pro, MC (97.0%). The average virulence of the population isolated after Quadris, SC treatment proved to be maximum: 3.4 points (at the control level). The greatest racial diversity has been found in P. teres populations isolated after treatment with fungicides based on Magnello, EC triazoles (CF = 0.10) and Quadris, SC strobilurins (CF = 0.10). The maximum intrapopulation heterogeneity has been recorded in populations isolated after treatment with fungicides based on triazoles and Bacillus amyloliquefaciens: Kolosal Pro, MC (Sh = 2.16), Capella, M (Sh = 2.14), Magnello, EC (Sh = 2.10)), and Orgamika C, L (Sh = 2.12). After introducing the permitted rate of fungicides into the pure culture of P. teres, the average growth rate of the colonies slowed down from 86.1% (Quadris, SC) to 100% (Amistar Trio, EC). Fungicides based on strobilurins and Bacillus amyloliquefaciens completely prevented sporulation. The results of the research suggest that there is a shift in sensitivity to the test drugs.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1.
Fig. 2.

REFERENCES

  1. Worku, A., Barley net blotch disease management: A review, Int. J. Environ. Agric. Res., 2021, vol. 7, pp. 69–81.

    Google Scholar 

  2. Pobezhimova, T.P., Korsukova, A.V., Dorofeev, N.V., et al., Physiological effects of triazole fungicides in plants, Izv. VUZov, Prikl. Khim. Biotekhnol., 2019, vol. 9, no. 3, pp. 461–476. https://doi.org/10.21285/2227‑2925‑2019‑9‑3‑461‑476

    Article  CAS  Google Scholar 

  3. Deising, H.B., Reimann, S., and Pascholati, S.F., Mechanisms and significance of fungicide resistance, Braz. J. Microbiol., 2008, no. 39, pp. 286–295. https://doi.org/10.1590/S1517‑838220080002000017

  4. Lucas, J.A., Hawkins, N.J., and Fraaije, B.A., The evolution of fungicide resistance, Adv. Appl. Microbiol., 2015, no. 90, pp. 29–92. https://doi.org/10.1016/bs.aambs.2014.09.001

  5. Andreeva, E.I. and Zinchenko, V.A., Systemic fungicides–inhibitors of ergosterol biosynthesis, AgroXXI, 2002, no. 4, pp. 14–15.

  6. Feng, Y., Zhang, W., Pang, S., et al., Kinetics and new mechanism of azoxystrobin biodegradation by an Ochrobactrum anthropi strain SH14, Microorganisms, 2020, vol. 8, no. 5, p. 625. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7284741/. Cited August 10, 2023.

  7. Ngalimat, M.S., Yahaya, R.S.R., Baharudin, M.M., et al., A review on the biotechnological applications of the operational group Bacillus amyloliquefaciens, Microorganisms, 2021, vol. 9. https://www.mdpi.com/2076–2607/9/3/614. Cited August 10, 2023. https://doi.org/10.3390/microorganisms9030614

  8. Afanasenko, O.S., Jalli, M., Pinnschmidt, H.O., et al., Development of an international standard set of barley differential genotypes for Pyrenophora teres f. teres, Plant Pathol., 2009, vol. 58, no. 4, pp. 665–676.

    Article  Google Scholar 

  9. Chekmarev, V.V., Zeleneva, Yu.V., Buchneva, G.N., et al., Metodika opredeleniya biologicheskoi effektivnosti fungitsidov v otnoshenii gribov roda Fusarium i ikh rezistentnosti k khimicheskim preparatam (Methodology for Determining the Biological Effectiveness of Fungicides Against Fungi of the Genus Fusarium and their Resistance to Chemical Preparations), Tambov: Print-Servis, 2015.

  10. Shannon, C.E., The Mathematical Theory of Communication, Urbana: Univ. Illinois Press, 1949.

    Google Scholar 

  11. Nazarov, P.A., Naleev, B.D., Ivanova, M.I., et al., Infectious plant diseases: Etiology, current status, problems and prospects in plant protection, Acta Nat., 2020, vol. 12, no. 3, pp. 46–59. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7604890/. Cited August 10, 2023. https://doi.org/10.32607/actanaturae.11026

  12. Shcherbakova, L.A., Fungicide resistance of plant pathogenic fungi and their chemosensitization as a tool to increase anti-disease effects of triazoles and strobilurines, S-kh. Biol., 2019, no. 54, pp. 875–891. https://doi.org/10.21285/2227‑2925‑2019‑9‑3‑461‑476

  13. Backes, A., Guerriero, G., Barka, A., et al., Pyrenophora teres: taxonomy, morphology, interaction with barley, and mode of control, Front. Plant Sci., 2021, vol. 12. https://www.frontiersin.org/articles/10.3389/fpls.2021. 614951/full. Cited August 10, 2023. https://doi.org/10.3389/fpls.2021.614951

Download references

Funding

This study was performed under the state assignment of the Ministry of Science and Higher Education of the Russian Federation, topic no. FGRN-2022-0004 (strobilurins and bacterial fungicides + biological pesticides) and supported by the Kuban Science Foundation (grant Nastavnik-21.1/48 (triazoles)).

Author information

Authors and Affiliations

  1. Federal Research Center of Biological Plant Protection, 350039, Krasnodar, Russia

    G. V. Volkova & Ya. V. Yakhnik

Authors
  1. G. V. Volkova
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Ya. V. Yakhnik
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to G. V. Volkova.

Ethics declarations

CONFLICT OF INTEREST

The authors of this work declare that they have no conflicts of interest.

ETHICS APPROVAL AND CONSENT TO PARTICIPATE

This work does not contain any studies involving human and animal subjects.

Additional information

Translated by D. Zabolotny

Publisher’s Note.

Allerton Press remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Volkova, G.V., Yakhnik, Y.V. Sensitivity of the Causative Agent of Net Blotch of Barley (Pyrenophora teres Drechsler) to Fungicides. Russ. Agricult. Sci. 50, 40–45 (2024). https://doi.org/10.3103/S1068367424010166

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.3103/S1068367424010166

Keywords:

Search

Navigation