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The rhizomicrobiomes of wild and cultivated crops react differently to fungicides

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Abstract

The fungicides used to control diseases in cereal production can have adverse effects on non-target microbial communities, with possible consequences for plant health and productivity. Although we know that fungicides affect microbial community structure and soil activities, it is unclear how crop cultivars have altered the impact of fungicides on rhizomicrobiomes. In this study, the rhizosphere bacterial and fungal communities and structures of cultivated crops and their wild relatives were studied by Illumina MiSeq sequencing analysis. The results indicated that the rhizomicrobiome communities of wild crops reacted more strongly to fungicides than that of their cultivated relatives. Furthermore, fungal community composition was more affected by fungicides than bacterial community composition. Remarkably, the same trend was observed in both soybean and rice with regard to the influence of crop cultivar on the response of the rhizomicrobiome to fungicide application, although the level of the response was not similar. We report for the first time that the rhizomicrobiomes of wild crops reacted more strongly to fungicides than the rhizomicrobiomes of cultivated crops.

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Acknowledgements

This research was financially supported by the Science Foundation of Chinese Academy of Sciences (XDB15030103), the National Key Research and Development Program of China (2016YFC0501202), the Key Deployment Project of the Chinese Academy of Sciences(KFZD-SW-112),the National Natural Science Foundation of China (41571255), Key Laboratory Foundation of Mollisols Agroecology (2016ZKHT-05), the Key Technology Research and Development Program of CAS during the “13th Five-Year Plan” (Y6H2043001), and the Excellent Researcher Award Program from Jilin province of China (20180520052JH). We thank Dr. Jun Rong for the supply of the seeds of wild rice and thank Dr. Xinhou Zhang for the supply of the seeds of wild soybean. We thank Johannes A. van Veen for improving manuscript and thank Eiko E Kuramae for improving figures.

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Correspondence to Chunjie Tian.

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All the authors declare no conflict of interest.

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Communicated by Yusuf Akhter.

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Shi, S., Tian, L., Xu, S. et al. The rhizomicrobiomes of wild and cultivated crops react differently to fungicides. Arch Microbiol 201, 477–486 (2019). https://doi.org/10.1007/s00203-018-1586-z

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  • DOI: https://doi.org/10.1007/s00203-018-1586-z

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