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Effects of plant tissue permeability on invasion and population bottlenecks of a phytopathogen

文献类型： 外文期刊

作者： Jiang, Gaofei 1 ; Zhang, Yuling 2 ; Chen, Min 3 ; Ramoneda, Josep 4 ; Han, Liangliang 5 ; Shi, Yu 6 ; Peyraud, Remi 7 ; Wang, Yikui 8 ; Shi, Xiaojun 1 ; Chen, Xinping 1 ; Ding, Wei 1 ; Jousset, Alexandre 2 ; Hikichi, Yasufumi 9 ; Ohnishi, Kouhei 9 ; Zhao, Fang-Jie 2 ; Xu, Yangchun 2 ; Shen, Qirong 2 ; Dini-Andreote, Francisco 10 ; Zhang, Yong 1 ; Wei, Zhong 2 ;

作者机构： 1.Southwest Univ, Coll Resources & Environm, Coll Plant Protect, Interdisciplinary Res Ctr Agr Green Dev Yangtze Ri, Chongqing, Peoples R China

2.Nanjing Agr Univ, Jiangsu Prov Key Lab Organ Solid Waste Utilizat, Natl Engn Res Ctr Organ Based Fertilizers, Key Lab Plant Immun,Jiangsu Collaborat Innovat Ctr, Nanjing, Peoples R China

3.Shaanxi Univ Sci & Technol, Coll Environm Sci & Engn, Xian, Peoples R China

4.Univ Colorado, Inst Res Environm Sci, Boulder, CO USA

5.City Univ Hong Kong, Dept Biomed Sci, Kowloon Tong, Hong Kong, Peoples R China

6.Henan Univ, Sch Life Sci, State Key Lab Crop Stress Adaptat & Improvement, Kaifeng, Henan, Peoples R China

7.iMEAN, Occitanie, FR, France

8.Guangxi Acad Agr Sci, Vegetable Res Inst, Nanning, Peoples R China

9.Kochi Univ, Fac Agr & Marine Sci, Nankoku, Japan

10.Penn State Univ, Dept Plant Sci, University Pk, PA USA

11.Penn State Univ, Huck Inst Life Sci, University Pk, PA USA

12.Penn State Univ, Huck Inst Life Sci, Hlth Microbiome Ctr 1, University Pk, PA USA

期刊名称：NATURE COMMUNICATIONS （ 影响因子：16.6； 五年影响因子：17.0 ）

ISSN：

年卷期： 2024 年 15 卷 1 期

页码：

收录情况： SCI

摘要： Pathogen genetic diversity varies in response to environmental changes. However, it remains unclear whether plant barriers to invasion could be considered a genetic bottleneck for phytopathogen populations. Here, we implement a barcoding approach to generate a pool of 90 isogenic and individually barcoded Ralstonia solanacearum strains. We used 90 of these strains to inoculate tomato plants with different degrees of physical permeability to invasion (intact roots, wounded roots and xylem inoculation) and quantify the phytopathogen population dynamics during invasion. Our results reveal that the permeability of plant roots impacts the degree of population bottleneck, genetic diversity, and composition of Ralstonia populations. We also find that selection is the main driver structuring pathogen populations when barriers to infection are less permeable, i.e., intact roots, the removal of root physical and immune barriers results in the predominance of stochasticity in population assembly. Taken together, our study suggests that plant root permeability constitutes a bottleneck for phytopathogen invasion and genetic diversity. Bottleneck effects of plant barriers on pathogenic invasions remain unclear. Using a random barcoding approach, this study investigates how plant root permeability limits the invasion and population bottlenecks of a phytopathogenic Ralstonia.

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