Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2023 Jan 26:11:e14705.
doi: 10.7717/peerj.14705. eCollection 2023.

Detection of fungicide resistance to fludioxonil and tebuconazole in Fusarium pseudograminearum, the causal agent of Fusarium crown rot in wheat

Na Zhang  1 , Yiying Xu  1   2 , Qi Zhang  1 , Le Zhao  1 , Yanan Zhu  1 , Yanhui Wu  1 , Zhen Li  1 , Wenxiang Yang  1
Affiliations

Detection of fungicide resistance to fludioxonil and tebuconazole in Fusarium pseudograminearum, the causal agent of Fusarium crown rot in wheat

Na Zhang et al. PeerJ. .

Abstract

Fusarium crown rot (FCR) on wheat is a soil-borne disease that affects the yield and quality of the produce. In 2020, 297 Fusarium pseudograminearum isolates were isolated from diseased FCR wheat samples from eight regional areas across Hebei Province in China. Baseline sensitivity of F. pseudograminearum to fludioxonil (0.0613 ± 0.0347 μg/mL) and tebuconazole (0.2328 ± 0.0840 μg/mL) were constructed based on the in vitro tests of 71 and 83 isolates, respectively. The resistance index analysis showed no resistance isolate to fludioxonil but two low-resistance isolates to tebuconazole in 2020. There was an increased frequency of resistant isolates from 2021 to 2022 based on the baseline sensitivity for tebuconazole. There was no cross-resistance between fludioxonil and tebuconazole. This study provides a significant theoretical and practical basis for monitoring the resistance of F. pseudograminearum to fungicides, especially the control of FCR.

Keywords: Baseline sensitivity; Cross-resistance; Field populations; Fludioxonil; Fungicide resistance; Fusarium crown rot; Fusarium pseudograminearum; Resistance monitoring; Tebuconazole; Triticum aestivum L..

PubMed Disclaimer

Conflict of interest statement

The authors declare that they have no competing interests.

Figures

Figure 1
Figure 1. Frequency distribution of the effective concentration for 50% growth inhibition (EC50) for fludioxonil on 71 F. pseudograminearum isolates.
Figure 2
Figure 2. Frequency distribution of the effective concentration for 50% growth inhibition (EC50) for tebuconazole on 83 F. pseudograminearum isolates.
Figure 3
Figure 3. Frequency distribution of the effective concentration for 50% growth inhibition (EC50) for tebuconazole on a subset of 55 (B) F. pseudograminearum isolates.
Figure 4
Figure 4. Result from the cross resistance analysis between fludioxonil and tebuconazole.
See this image and copyright information in PMC

References

    1. Agustí-Brisach C, Raya-Ortega MC, Trapero C, Roca LF, Luque F, López-Moral A, Fuentes M, Trapero A. First report of Fusarium pseudograminearum causing crown rot of wheat in Europe. Plant Disease. 2018;102(8):1670. doi: 10.1094/PDIS-11-17-1840-PDN. - DOI
    1. Breunig M, Chilvers MI. Baseline sensitivity of Fusarium graminearum from wheat, corn, dry bean and soybean to pydiflumetofen in Michigan, USA. Crop Protection. 2021;140:105419. doi: 10.1016/j.cropro.2020.105419. - DOI
    1. Chong P, Essoh JN, Isaza REA, Keizer LCP, Stergiopoulos I, Seidl MF, Guzman M, Sandoval J, Verweij PE, Scalliet G, Sierotzski H, de Bellaire LL, Crous PW, Carlier J, Cros S, Meijer HJG, Peralta EL, Kema GHJ. A worldwide analysis of reduced sensitivity to DMI fungicides in the banana pathogen Pseudocercospora fijiensis. Pest Management Science. 2021;77(7):3273–3288. doi: 10.1002/ps.6372. - DOI - PMC - PubMed
    1. de Chaves M, Reginatto P, da Costa B, de Paschoal R, Teixeira M, Fuentefria A. Fungicide resistance in Fusarium graminearum species complex. Current Microbiology. 2022;79:62. doi: 10.1007/s00284-021-02759-4. - DOI - PubMed
    1. Delen N. Fungicides. Turkey: Nobel Press; 2016. p. 534. No. 1441.

Publication types

Supplementary concepts

LinkOut - more resources