Crop rotation and native microbiome inoculation restore soil capacity to suppress a root disease

Yanyan Zhou, Zhen Yang, Jinguang Liu, Xudong Li, Xingxiang Wang, Chuanchao Dai, Taolin Zhang, Víctor J. Carrión, Zhong Wei, Fuliang Cao, Manuel Delgado-Baquerizo and Xiaogang Li ()
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Yanyan Zhou: Nanjing Forestry University
Zhen Yang: Chinese Academy of Sciences
Jinguang Liu: Chinese Academy of Sciences
Xudong Li: Nanjing Forestry University
Xingxiang Wang: Chinese Academy of Sciences
Chuanchao Dai: Nanjing Normal University
Taolin Zhang: Chinese Academy of Sciences
Víctor J. Carrión: Universidad de Málaga
Zhong Wei: Nanjing Agricultural University
Fuliang Cao: Nanjing Forestry University
Manuel Delgado-Baquerizo: Instituto de Recursos Naturales y Agrobiología de Sevilla (IRNAS), CSIC
Xiaogang Li: Nanjing Forestry University

Nature Communications, 2023, vol. 14, issue 1, 1-14

Abstract: Abstract It is widely known that some soils have strong levels of disease suppression and prevent the establishment of pathogens in the rhizosphere of plants. However, what soils are better suppressing disease, and how management can help us to boost disease suppression remain unclear. Here, we used field, greenhouse and laboratory experiments to investigate the effect of management (monocropping and rotation) on the capacity of rhizosphere microbiomes in suppressing peanut root rot disease. Compared with crop rotations, monocropping resulted in microbial assemblies that were less effective in suppressing root rot diseases. Further, the depletion of key rhizosphere taxa in monocropping, which were at a disadvantage in the competition for limited exudates resources, reduced capacity to protect plants against pathogen invasion. However, the supplementation of depleted strains restored rhizosphere resistance to pathogen. Taken together, our findings highlight the role of native soil microbes in fighting disease and supporting plant health, and indicate the potential of using microbial inocula to regenerate the natural capacity of soil to fight disease.

Date: 2023
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DOI: 10.1038/s41467-023-43926-4

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