Predatory protists reduce bacteria wilt disease incidence in tomato plants

Sai Guo; Zixuan Jiao; Zhiguang Yan; Xinyue Yan; Xuhui Deng; Wu Xiong; Chengyuan Tao; Hongjun Liu; Rong Li; Qirong Shen; George A. Kowalchuk; Stefan Geisen

doi:10.1038/s41467-024-45150-0

Predatory protists reduce bacteria wilt disease incidence in tomato plants

Sai Guo, Zixuan Jiao, Zhiguang Yan, Xinyue Yan, Xuhui Deng, Wu Xiong, Chengyuan Tao, Hongjun Liu, Rong Li^* (Corresponding author), Qirong Shen, George A. Kowalchuk, Stefan Geisen

^*Corresponding author for this work

NIOO - Terrestrial Ecology (TE)

Research output: Contribution to journal/periodical › Article › Scientific › peer-review

14 Citations (Scopus)

Abstract

Soil organisms are affected by the presence of predatory protists. However, it remains poorly understood how predatory protists can affect plant disease incidence and how fertilization regimes can affect these interactions. Here, we characterise the rhizosphere bacteria, fungi and protists over eleven growing seasons of tomato planting under three fertilization regimes, i.e conventional, organic and bioorganic, and with different bacterial wilt disease incidence levels. We find that predatory protists are negatively associated with disease incidence, especially two ciliophoran Colpoda OTUs, and that bioorganic fertilization enhances the abundance of predatory protists. In glasshouse experiments we find that the predatory protist Colpoda influences disease incidence by directly consuming pathogens and indirectly increasing the presence of pathogen-suppressive microorganisms in the soil. Together, we demonstrate that predatory protists reduce bacterial wilt disease incidence in tomato plants via direct and indirect reductions of pathogens. Our study provides insights on the role that predatory protists play in plant disease, which could be used to design more sustainable agricultural practices.

Original language	English
Article number	829 (2024)
Journal	Nature Communications
Volume	15
DOIs	https://doi.org/10.1038/s41467-024-45150-0
Publication status	Published - 27 Jan 2024

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title = "Predatory protists reduce bacteria wilt disease incidence in tomato plants",

abstract = "Soil organisms are affected by the presence of predatory protists. However, it remains poorly understood how predatory protists can affect plant disease incidence and how fertilization regimes can affect these interactions. Here, we characterise the rhizosphere bacteria, fungi and protists over eleven growing seasons of tomato planting under three fertilization regimes, i.e conventional, organic and bioorganic, and with different bacterial wilt disease incidence levels. We find that predatory protists are negatively associated with disease incidence, especially two ciliophoran Colpoda OTUs, and that bioorganic fertilization enhances the abundance of predatory protists. In glasshouse experiments we find that the predatory protist Colpoda influences disease incidence by directly consuming pathogens and indirectly increasing the presence of pathogen-suppressive microorganisms in the soil. Together, we demonstrate that predatory protists reduce bacterial wilt disease incidence in tomato plants via direct and indirect reductions of pathogens. Our study provides insights on the role that predatory protists play in plant disease, which could be used to design more sustainable agricultural practices.",

author = "Sai Guo and Zixuan Jiao and Zhiguang Yan and Xinyue Yan and Xuhui Deng and Wu Xiong and Chengyuan Tao and Hongjun Liu and Rong Li and Qirong Shen and Kowalchuk, {George A.} and Stefan Geisen",

note = "Data archiving: no NIOO data",

year = "2024",

month = jan,

day = "27",

doi = "10.1038/s41467-024-45150-0",

language = "English",

volume = "15",

journal = "Nature Communications",

issn = "2041-1723",

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TY - JOUR

T1 - Predatory protists reduce bacteria wilt disease incidence in tomato plants

AU - Guo, Sai

AU - Jiao, Zixuan

AU - Yan, Zhiguang

AU - Yan, Xinyue

AU - Deng, Xuhui

AU - Xiong, Wu

AU - Tao, Chengyuan

AU - Liu, Hongjun

AU - Li, Rong

AU - Shen, Qirong

AU - Kowalchuk, George A.

AU - Geisen, Stefan

N1 - Data archiving: no NIOO data

PY - 2024/1/27

Y1 - 2024/1/27

N2 - Soil organisms are affected by the presence of predatory protists. However, it remains poorly understood how predatory protists can affect plant disease incidence and how fertilization regimes can affect these interactions. Here, we characterise the rhizosphere bacteria, fungi and protists over eleven growing seasons of tomato planting under three fertilization regimes, i.e conventional, organic and bioorganic, and with different bacterial wilt disease incidence levels. We find that predatory protists are negatively associated with disease incidence, especially two ciliophoran Colpoda OTUs, and that bioorganic fertilization enhances the abundance of predatory protists. In glasshouse experiments we find that the predatory protist Colpoda influences disease incidence by directly consuming pathogens and indirectly increasing the presence of pathogen-suppressive microorganisms in the soil. Together, we demonstrate that predatory protists reduce bacterial wilt disease incidence in tomato plants via direct and indirect reductions of pathogens. Our study provides insights on the role that predatory protists play in plant disease, which could be used to design more sustainable agricultural practices.

AB - Soil organisms are affected by the presence of predatory protists. However, it remains poorly understood how predatory protists can affect plant disease incidence and how fertilization regimes can affect these interactions. Here, we characterise the rhizosphere bacteria, fungi and protists over eleven growing seasons of tomato planting under three fertilization regimes, i.e conventional, organic and bioorganic, and with different bacterial wilt disease incidence levels. We find that predatory protists are negatively associated with disease incidence, especially two ciliophoran Colpoda OTUs, and that bioorganic fertilization enhances the abundance of predatory protists. In glasshouse experiments we find that the predatory protist Colpoda influences disease incidence by directly consuming pathogens and indirectly increasing the presence of pathogen-suppressive microorganisms in the soil. Together, we demonstrate that predatory protists reduce bacterial wilt disease incidence in tomato plants via direct and indirect reductions of pathogens. Our study provides insights on the role that predatory protists play in plant disease, which could be used to design more sustainable agricultural practices.

U2 - 10.1038/s41467-024-45150-0

DO - 10.1038/s41467-024-45150-0

M3 - Article

SN - 2041-1723

VL - 15

JO - Nature Communications

JF - Nature Communications

M1 - 829 (2024)

ER -

Predatory protists reduce bacteria wilt disease incidence in tomato plants

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