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Deoxynivalenol accumulation and detoxification in cereals and its potential role in wheat–Fusarium graminearum interactions

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Abstract

Deoxynivalenol (DON) is a prominent mycotoxin showing significant accumulation in cereal plants during infection by the phytopathogen Fusarium graminearum. It is a virulence factor that is important in the spread of F. graminearum within cereal heads, and it causes serious yield losses and significant contamination of cereal grains. In recent decades, genetic and genomic studies have facilitated the characterization of the molecular pathways of DON biosynthesis in F. graminearum and the environmental factors that influence DON accumulation. In addition, diverse scab resistance traits related to the repression of DON accumulation in plants have been identified, and experimental studies of wheat–pathogen interactions have contributed to understanding detoxification mechanisms in host plants. The present review illustrates and summarizes the molecular networks of DON mycotoxin production in F. graminearum and the methods of DON detoxification in plants based on the current literature, which provides molecular targets for crop improvement programs. This review also comprehensively discusses recent advances and challenges related to genetic engineering-mediated cultivar improvements to strengthen scab resistance. Furthermore, ongoing advancements in genetic engineering will enable the application of these molecular targets to develop more scab-resistant wheat cultivars with DON detoxification traits.

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Data sharing is not applicable to this article, as no datasets were generated or analyzed during the current study.

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Acknowledgements

We apologize to our colleagues whose work could not be included because of space constraints. We would like to thank the reviewers for their critical comments on earlier versions of this manuscript and American Journal Experts for providing editing services to improve the English language of this manuscript.

Funding

This work was financially supported by the National Natural Science Foundation of China (32260717), Natural Science Foundation of Shaanxi Province, China (2021JQ-619), China Postdoctoral Science Foundation’s funded project (2017M613228), and Research Fund for the Doctoral Start-up Foundation of Yan’an University (YDBK2019-65).

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KL: conceptualization, visualization, writing—review and editing, supervision, funding acquisition. JG: writing—original draft, investigation, data curation. DH: writing—original draft, data curation. GL: writing—review and editing, data curation writing—original draft, data curation. TO: writing—review and editing.

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Correspondence to Kun Luo.

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Luo, K., Guo, J., He, D. et al. Deoxynivalenol accumulation and detoxification in cereals and its potential role in wheat–Fusarium graminearum interactions. aBIOTECH 4, 155–171 (2023). https://doi.org/10.1007/s42994-023-00096-7

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  • DOI: https://doi.org/10.1007/s42994-023-00096-7

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