首页|Siderophore interactions drive the ability of Pseudomonas spp.consortia to protect tomato against Ralstonia solanacearum

Siderophore interactions drive the ability of Pseudomonas spp.consortia to protect tomato against Ralstonia solanacearum

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The soil-borne bacterial pathogen Ralstonia solanacearum causes significant losses in Solanaceae crop production worldwide,including tomato,potato,and eggplant.To efficiently prevent outbreaks,it is essential to understand the complex interactions between pathogens and the microbiome.One promising mechanism for enhancing microbiome functionality is siderophore-mediated competition,which is shaped by the low iron availability in the rhizosphere.This study explores the critical role of iron competition in determining microbiome functionality and its potential for designing high-performance microbiome engineering strategies.We investigated the impact of siderophore-mediated interactions on the efficacy of Pseudomonas spp.consortia in suppressing R.solanacearum,both in vitro and in vivo.Our findings show that siderophore production significantly enhances the inhibitory effects of Pseudomonas strains on pathogen growth,while other metabolites are less effective under iron-limited conditions.Moreover,siderophores play a crucial role in shaping interactions within the consortia,ultimately determining the level of protection against bacterial wilt disease.This study highlights the key role of siderophores in mediating consortium interactions and their impact on tomato health.Our results also emphasize the limited efficacy of other secondary metabolites in iron-limited environments,underscoring the importance of siderophore-mediated competition in maintaining tomato health and suppressing disease.

Zhengying Shao、Shaohua Gu、Xiaoni Zhang、Jiao Xue、Tao Yan、Saisai Guo、Thomas Pommier、Alexandre Jousset、Tianjie Yang、Yangchun Xu、Qirong Shen、Zhong Wei

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Jiangsu Provincial Key Lab for Solid Organic Waste Utilization,Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization,Educational Ministry Engineering Center of Resource-saving fertilizers,National Engineering Research Center for Organic-based Fertilizers,College of Resources and Environmental Sciences,Nanjing Agricultural University,Nanjing 210095,China

Center for Quantitative Biology and Peking-Tsinghua Center for Life Sciences,Academy for Advanced Interdisciplinary Studies,P

Setec Energie Environnement,97/101 bvd Vivier Merle,Lyon 69003,France

2024

10.1093/hr/uhae186

园艺研究(英文)

园艺研究(英文)

CSTPCD
ISSN：
年,卷(期)：2024.11(9)