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Soil microbiome manipulation triggers direct and possible indirect suppression against Ralstonia solanacearum and Fusarium oxysporum
npj Biofilms and Microbiomes ( IF 9.2 ) Pub Date : 2021-04-12 , DOI: 10.1038/s41522-021-00204-9
Xuhui Deng 1, 2 , Na Zhang 1, 2 , Zongzhuan Shen 1, 2 , Chengzhi Zhu 1, 2 , Hongjun Liu 1, 2 , Zhihui Xu 1, 2 , Rong Li 1, 2 , Qirong Shen 1, 2 , Joana Falcao Salles 3
Affiliation  

Soil microbiome manipulation can potentially reduce the use of pesticides by improving the ability of soils to resist or recover from pathogen infestation, thus generating natural suppressiveness. We simulated disturbance through soil fumigation and investigated how the subsequent application of bio-organic and organic amendments reshapes the taxonomic and functional potential of the soil microbiome to suppress the pathogens Ralstonia solanacearum and Fusarium oxysporum in tomato monocultures. The use of organic amendment alone generated smaller shifts in bacterial and fungal community composition and no suppressiveness. Fumigation directly decreased F. oxysporum and induced drastic changes in the soil microbiome. This was further converted from a disease conducive to a suppressive soil microbiome due to the application of organic amendment, which affected the way the bacterial and fungal communities were reassembled. These direct and possibly indirect effects resulted in a highly efficient disease control rate, providing a promising strategy for the control of the diseases caused by multiple pathogens.



中文翻译:

土壤微生物组操作触发对青枯菌和尖孢镰刀菌的直接和可能的间接抑制

土壤微生物组操纵可以通过提高土壤抵抗病原体侵染或从病原体侵染中恢复的能力来潜在地减少杀虫剂的使用,从而产生自然抑制作用。我们通过土壤熏蒸模拟干扰,并研究生物有机和有机改良剂的后续应用如何重塑土壤微生物组的分类学和功能潜力,以抑制番茄单一栽培中的病原体青枯菌和尖孢镰刀菌。单独使用有机改良剂会在细菌和真菌群落组成方面产生较小的变化,并且不会产生抑制作用。熏蒸直接减少了 F. oxysporum并引起土壤微生物组的剧烈变化。由于应用有机改良剂,这进一步从一种有利于抑制土壤微生物组的疾病转变为影响细菌和真菌群落重新组装的方式。这些直接和可能的间接影响导致了高效的疾病控制率,为控制由多种病原体引起的疾病提供了有前途的策略。

更新日期:2021-04-12
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